Big step in confirmation of pin manipulations working on kazzo.
Able to read PRG-ROM flash chip's manf and device ID from commandline. New dictionaries io and nes along with firmware files to support. now have io_reset, nes_init, and snes_init io.c functions nes.c functions including discrete_exp0_prgrom_wr and emulate_nes_cpu_rd. New dictionary.c/.h for host to make dictionary calls easier including setting proper return data lengths based on opcode. adding nop command to pinport.h AVR Memory Usage ---------------- Device: atmega164a Program: 2960 bytes (18.1% Full) (.text + .data + .bootloader) Data: 53 bytes (5.2% Full) (.data + .bss + .noinit)
This commit is contained in:
Paul Molloy
parent
94ea3fd474
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:1005900084B965B9479A479814B842B967FF02C051
|
||||
:1005A00041980CC0419A0AC042B9603248F48FEFBA
|
||||
:1005B00084B9607865B9479A479814B880E008957F
|
||||
:1005C0008FEF84B965B9479A479814B880E00895C9
|
||||
:1005D000803B11F08FE8089522B98FEF84B945B9B7
|
||||
:1005E000479A479865B95F9A5F9814B880E0089574
|
||||
:1005F000FB01853C59F1863C70F4823C09F1833C57
|
||||
:1006000028F4803CC9F0813CA9F418C0833CD1F0A7
|
||||
:10061000843C81F419C0883CF9F0893C28F4863C7C
|
||||
:10062000B9F0873C39F416C08A3CD1F08A3CB0F06E
|
||||
:100630008B3CD1F080E9089580B113C083B111C023
|
||||
:1006400086B10FC089B10DC082B10BC085B109C0A0
|
||||
:1006500088B107C08BB105C081B103C084B101C0AE
|
||||
:1006600087B1808380E008958AB1808380E0089517
|
||||
:1006700081E008951F93FC0110E0808187FD11E067
|
||||
:100680008181823031F1833041F18130C9F582813D
|
||||
:10069000803B28F4803A68F4803820F006C0803C23
|
||||
:1006A00068F012C00E94B7012CC064810E946502EC
|
||||
:1006B00028C0658144810E94B70223C063814581BF
|
||||
:1006C00024810E94E8021DC063E071E00E94F802EC
|
||||
:1006D00013C082810E94400114C08281803830F4AE
|
||||
:1006E0006581448123810E9480010BC06581448122
|
||||
:1006F00023E031E00E94A701809302011F5F03C045
|
||||
:1007000080E88093020182E091E090931A01809347
|
||||
:100710001901812F1F910895E9E6F0E08081826040
|
||||
:100720008083E89A08951F93CF93DF9360911B0114
|
||||
:10073000635067FDA5C080911801CCE0D0E0C81BD4
|
||||
:10074000D109C15EDE4F809117018D3209F085C05D
|
||||
:10075000683009F093C083EC80930B018AE58093A5
|
||||
:10076000000110920A018881807641F0CE010E943A
|
||||
:100770003A03282F8F3F09F45FC065C09A81109219
|
||||
:1007800014018981882321F41092150122E04DC0C3
|
||||
:10079000853019F490931C0147C08630B1F58B81E8
|
||||
:1007A000813019F48EE791E004C0823041F480E991
|
||||
:1007B00091E090931A018093190122E122C08330C5
|
||||
:1007C000F9F48A81882341F482E391E090931A013D
|
||||
:1007D0008093190124E015C0813041F486E391E053
|
||||
:1007E00090931A01809319012AE20BC0823041F4E0
|
||||
:1007F00080E691E090931A01809319012EE101C0E7
|
||||
:1008000020E080E480930A011EC0883021F421E0BA
|
||||
:100810008EE191E00CC0893019F490931E0104C060
|
||||
:100820008A3011F421E001C020E084E191E090934E
|
||||
:100830001A018093190107C0888187FD2E8180E805
|
||||
:1008400080930A0106C08F81882319F48E81821754
|
||||
:1008500008F0822F8093010111C080910A0187FF67
|
||||
:100860000DC0CE010E9438038F3F21F48EE18093AA
|
||||
:10087000000104C0882311F01092010110921B01A5
|
||||
:100880008091000184FF46C0809101018F3F09F4EF
|
||||
:1008900041C0182F893008F018E0811B80930101B6
|
||||
:1008A00080910B0198E8892780930B01112321F196
|
||||
:1008B0002091190130911A0180910A0186FF0AC026
|
||||
:1008C000912FF901ACE0B1E084918D933196915074
|
||||
:1008D000D9F708C0912FD901ECE0F1E08D91819317
|
||||
:1008E0009150E1F7C90101961150810F911D1F5FD1
|
||||
:1008F00090931A01809319018CE091E0612F0E947E
|
||||
:10090000AD04612F6C5F6C3019F08FEF80930101A3
|
||||
:100910006093000194E189B1847131F49150D9F769
|
||||
:1009200010921C0110921601DF91CF911F91089532
|
||||
:10093000A82FB92F80E090E041E050EA609530E0C8
|
||||
:1009400009C02D9182279795879510F084279527C8
|
||||
:10095000305EC8F36F5FA8F30895EADF8D939D932F
|
||||
:100960000895CF93CFB7CF93DF93C3954C9BE9F70F
|
||||
:100970004C9B0BC04C9B09C04C9B07C04C9B05C0BB
|
||||
:100980004C9B03C04C9B01C089C06F93C091180160
|
||||
:10099000DD27C15EDE4F2F9365E54C9B03C02F9191
|
||||
:1009A0006F91E6CF0F931F934F9320E040E15F9349
|
||||
:1009B00009B1047104FB27F93F9350E03BE039C0D3
|
||||
:1009C000147140642F77012F5F5F1EC0406819B11A
|
||||
:1009D00014712F7752501FC0406409B12F770471F2
|
||||
:1009E000D1F15F5F00C023C0406219B12F7714714D
|
||||
:1009F00091F15F5F00C025C004711027515012F4BF
|
||||
:100A00005D5F0000115027952C3F19B1C8F6147195
|
||||
:100A10000127015027952C3FC8F64227499309B179
|
||||
:100A2000047110274F73115027952C3FA8F6469557
|
||||
:100A3000469519B1147179F00127015027952C3F83
|
||||
:100A400098F66B5A60F3315009B1B0F600C011E06E
|
||||
:100A50001CBB002717C03B503195C31BD04011E091
|
||||
:100A60001CBB0881033CF9F00B34E9F0209116011E
|
||||
:100A70001981110F1213EDCF093651F10D3211F01A
|
||||
:100A8000013E39F700931D013F915F914F911F91F6
|
||||
:100A90000F912F916F91CCB3C0FD67CFDF91CF91B4
|
||||
:100AA000CFBFCF91189520911D01222369F310919A
|
||||
:100AB0001B01112339F534303AF130931B01209397
|
||||
:100AC0001701109118013BE0311B309318011CC035
|
||||
:100AD00000911B010130B4F40AE53091000134FDAE
|
||||
:100AE00014C000930001CBE0D1E013C0052710E053
|
||||
:100AF00000C000000BB91AC0052710E0221F1DC05E
|
||||
:100B000010E021C04AE502C032ED432FC4E1D0E03D
|
||||
:100B100032E01AB114615C9A0BB11AB954E120E8C1
|
||||
:100B200065E320FF05270BB9279517951C3FF0F6C5
|
||||
:100B30006695B8F7B1F720FF05270BB927951795EC
|
||||
:100B40001C3FD0F62795179517FF052700001C3F7F
|
||||
:100B50000BB9B0F629913A9519F70B7E10911C014B
|
||||
:100B6000110FC651D0400BB911F01093160111E0CE
|
||||
:100B70001CBB00611AB11B7E402F4B7E54E05A957E
|
||||
:0E0B8000F1F70BB91AB94BB97FCFF894FFCF3C
|
||||
:020B8E005AFF0C
|
||||
:00000001FF
|
||||
|
|
|
|||
|
|
@ -1,9 +1,42 @@
|
|||
#include "io.h"
|
||||
|
||||
//=================================================================================================
|
||||
//
|
||||
// I/O operations
|
||||
// This file includes all the io functions possible to be called from the io dictionary.
|
||||
//
|
||||
// See description of the commands contained here in shared/shared_dictionaries.h
|
||||
//
|
||||
//=================================================================================================
|
||||
|
||||
/* Desc:Function takes an opcode which was transmitted via USB
|
||||
* then decodes it to call designated function.
|
||||
* shared_dict_io.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_dict_io.h
|
||||
* Post:function call complete.
|
||||
* Rtn: SUCCESS if opcode found, ERR_UNKN_IO_OPCODE_ONLY if opcode not present.
|
||||
*/
|
||||
uint8_t io_opcode_only( uint8_t opcode )
|
||||
{
|
||||
switch (opcode) {
|
||||
case IO_RESET: io_reset(); break;
|
||||
case NES_INIT: nes_init(); break;
|
||||
case SNES_INIT: snes_init(); break;
|
||||
default:
|
||||
//macro doesn't exist
|
||||
return ERR_UNKN_IO_OPCODE_ONLY;
|
||||
}
|
||||
|
||||
return SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
//pullup as many cart pins as possible
|
||||
//goal to be safe state for all hardware
|
||||
void io_pullup()
|
||||
//doesn't currently contain any checks to report error/success from
|
||||
//this is intended to be the "reset" safest condition for the kazzo
|
||||
void io_reset()
|
||||
{
|
||||
//pull up addr[7:0] bus
|
||||
_ADDR_IP();
|
||||
|
|
@ -18,10 +51,10 @@ void io_pullup()
|
|||
_CTL_HI();
|
||||
|
||||
//pull up aux port
|
||||
//Aux port contains EXP /OE control
|
||||
//pull up on EXP FF should disable FF ouput
|
||||
_AUX_IP();
|
||||
_AUX_HI();
|
||||
//Aux port EXP /OE control
|
||||
//pull up on EXP FF should disable FF ouput
|
||||
|
||||
//EXP0 input no pullup
|
||||
//Lots of possibilities, ~safe bet it will have it's own pull-up/down if needed.
|
||||
|
|
@ -32,4 +65,127 @@ void io_pullup()
|
|||
_EXP0_FLT();
|
||||
|
||||
//LED LAST displaying complete..
|
||||
//planning to have LED DIM at power on to signify kazzo is in default
|
||||
//mostly all pins pulled up state.
|
||||
//gives some insight to current state of kazzo since it doesn't reset itself
|
||||
//or if kazzo does reset itself due to WDT dim LED can help detect that.
|
||||
_LED_IP(); //DIM pulled up
|
||||
//_LED_OP(); //BRIGHT full power
|
||||
//boot with LED on/pulled up to differentiate bettwen BL/RUN
|
||||
_LED_ON();
|
||||
|
||||
}
|
||||
|
||||
//NES cartridge interfacing setup
|
||||
//set outputs as required
|
||||
//latch address of $0000
|
||||
//disable NES cart memories
|
||||
void nes_init()
|
||||
{
|
||||
//start with a reset
|
||||
//expecting user to do this but just to be sure
|
||||
io_reset();
|
||||
|
||||
//enable control outputs and disable memories
|
||||
//PRG-ROM
|
||||
_ROMSEL_OP();
|
||||
_ROMSEL_HI();
|
||||
//WRAM (and state of m2 during first half of CPU cycle)
|
||||
_M2_OP();
|
||||
_M2_LO();
|
||||
//CPU RD
|
||||
_PRGRW_OP();
|
||||
_PRGRW_RD();
|
||||
|
||||
//other control pins are inputs, leave as IP pullup from reset
|
||||
|
||||
//disable any CHR/VRAM memories with CHR /RD /WR
|
||||
//prior to setting PPU A13 & /A13 which are /CE pins
|
||||
//doing this helps ensure data bus is clear before
|
||||
//using it for AHL clocking
|
||||
_CSRD_OP();
|
||||
_CSRD_HI();
|
||||
_CSWR_OP();
|
||||
_CSWR_HI();
|
||||
|
||||
//memories are now disabled Data bus should be clear
|
||||
|
||||
//setup AHL FF
|
||||
_AHL_OP();
|
||||
_AHL_CLK();
|
||||
|
||||
//now meet conditions to call other macros
|
||||
//setup address $0000
|
||||
_ADDRH_SET(0x00);
|
||||
_ADDR_LO();
|
||||
|
||||
//default state of ADDR[7:0]
|
||||
_ADDR_OP();
|
||||
|
||||
//default state data bus pulled up
|
||||
_DATA_IP();
|
||||
_DATA_HI();
|
||||
|
||||
//turn LED off
|
||||
_LED_OFF();
|
||||
//set as OP for future commands to utilize
|
||||
_LED_OP();
|
||||
|
||||
}
|
||||
|
||||
|
||||
//SNES cartridge interfacing setup
|
||||
//set outputs as required
|
||||
//latch address of $000000
|
||||
//disable cart memories
|
||||
//reset high disables SRAM and puts INL carts in PRGM mode
|
||||
void snes_init()
|
||||
{
|
||||
//start with a reset
|
||||
//expecting user to do this but just to be sure
|
||||
io_reset();
|
||||
|
||||
//enable control outputs and disable memories
|
||||
//ROM
|
||||
_ROMSEL_OP();
|
||||
_ROMSEL_HI();
|
||||
_CSRD_OP();
|
||||
_CSRD_HI();
|
||||
_CSWR_OP();
|
||||
_CSWR_HI();
|
||||
|
||||
//disable SRAM and put cart in PRGM mode
|
||||
_SRST_OP();
|
||||
_SRST_HI();
|
||||
|
||||
//other control pins are inputs or unused, leave as IP pullup from reset
|
||||
|
||||
//memories are now disabled Data bus should be clear
|
||||
|
||||
//setup AHL FF
|
||||
_AHL_OP();
|
||||
_AHL_CLK();
|
||||
//setup AXL FF
|
||||
_AXLOE_OP();
|
||||
_AXL_CLK();
|
||||
|
||||
//now meet conditions to call other macros
|
||||
//setup address $000000
|
||||
_ADDRH_SET(0x00);
|
||||
_ADDRX_SET(0x00);
|
||||
_ADDR_LO();
|
||||
|
||||
//default state of ADDR[7:0]
|
||||
_ADDR_OP();
|
||||
|
||||
//default state data bus pulled up
|
||||
_DATA_IP();
|
||||
_DATA_HI();
|
||||
|
||||
//turn LED off
|
||||
_LED_OFF();
|
||||
//set as OP for future commands to utilize
|
||||
_LED_OP();
|
||||
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -3,7 +3,12 @@
|
|||
|
||||
#include <avr/io.h>
|
||||
#include "pinport.h"
|
||||
#include "shared_dictionaries.h"
|
||||
#include "shared_errors.h"
|
||||
|
||||
void io_pullup();
|
||||
uint8_t io_opcode_only( uint8_t opcode );
|
||||
void io_reset();
|
||||
void nes_init();
|
||||
void snes_init();
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -37,13 +37,8 @@ int __attribute__((noreturn)) main(void)
|
|||
//reconnect to host
|
||||
usbDeviceConnect();
|
||||
|
||||
//intialize i/o to pullup state
|
||||
io_pullup();
|
||||
|
||||
//configure LED PORT/DDR
|
||||
_LED_OP();
|
||||
//boot with LED on to differentiate bettwen BL/RUN
|
||||
_LED_ON();
|
||||
//intialize i/o and LED to pullup state
|
||||
io_reset();
|
||||
|
||||
//enable interrupts
|
||||
sei();
|
||||
|
|
|
|||
|
|
@ -0,0 +1,148 @@
|
|||
#include "nes.h"
|
||||
|
||||
//=================================================================================================
|
||||
//
|
||||
// NES operations
|
||||
// This file includes all the nes functions possible to be called from the nes dictionary.
|
||||
//
|
||||
// See description of the commands contained here in shared/shared_dictionaries.h
|
||||
//
|
||||
//=================================================================================================
|
||||
|
||||
/* Desc:Function takes an opcode which was transmitted via USB
|
||||
* then decodes it to call designated function.
|
||||
* shared_dict_nes.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_dict_nes.h
|
||||
* Post:function call complete.
|
||||
* Rtn: SUCCESS if opcode found, ERR_UNKN_NES_OPCODE_24BOP if opcode not present.
|
||||
*/
|
||||
uint8_t nes_opcode_24b_operand( uint8_t opcode, uint8_t addrH, uint8_t addrL, uint8_t data )
|
||||
{
|
||||
switch (opcode) {
|
||||
case DISCRETE_EXP0_PRGROM_WR:
|
||||
discrete_exp0_prgrom_wr( addrH, addrL, data );
|
||||
break;
|
||||
default:
|
||||
//macro doesn't exist
|
||||
return ERR_UNKN_NES_OPCODE_24BOP;
|
||||
}
|
||||
|
||||
return SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
|
||||
/* Desc:Function takes an opcode which was transmitted via USB
|
||||
* then decodes it to call designated function.
|
||||
* shared_dict_nes.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_dict_nes.h
|
||||
* Post:pointer to data updated with return value.
|
||||
* Rtn: SUCCESS if opcode found, ERR_UNKN_NES_OPCODE_16BOP_8BRV if opcode not present.
|
||||
*/
|
||||
uint8_t nes_opcode_16b_operand_8b_return( uint8_t opcode, uint8_t addrH, uint8_t addrL, uint8_t *data )
|
||||
{
|
||||
switch (opcode) {
|
||||
case EMULATE_NES_CPU_RD:
|
||||
*data = emulate_nes_cpu_rd( addrH, addrL );
|
||||
break;
|
||||
default:
|
||||
//macro doesn't exist
|
||||
return ERR_UNKN_NES_OPCODE_16BOP_8BRV;
|
||||
}
|
||||
|
||||
return SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
/* Desc: Discrete board PRG-ROM only write, does not write to mapper
|
||||
* PRG-ROM /WE <- EXP0 w/PU
|
||||
* PRG-ROM /OE <- /ROMSEL
|
||||
* PRG-ROM /CE <- GND
|
||||
* PRG-ROM write: /WE & /CE low, /OE high
|
||||
* mapper '161 CLK <- /ROMSEL
|
||||
* mapper '161 /LOAD <- PRG R/W
|
||||
* mapper '161 /LOAD must be low on rising edge of CLK to latch data
|
||||
* This is a /WE controlled write with data latched on rising edge EXP0
|
||||
* Note:addrH bit7 has no effect (ends up on PPU /A13)
|
||||
* /ROMSEL, M2, & PRG R/W signals untouched
|
||||
* Pre: nes_init() setup of io pins
|
||||
* Post:data latched by PRG-ROM, mapper register unaffected
|
||||
* address left on bus
|
||||
* data left on bus, but pullup only
|
||||
* EXP0 left pulled up
|
||||
* Rtn: None
|
||||
*/
|
||||
void discrete_exp0_prgrom_wr( uint8_t addrH, uint8_t addrL, uint8_t data )
|
||||
{
|
||||
_DATA_OP();
|
||||
DATA_OUT = addrH;
|
||||
_AHL_CLK(); //addrH latched
|
||||
DATA_OUT = data;
|
||||
ADDR_OUT = addrL;
|
||||
_EXP0_LO(); //Tas = 0ns, Tah = 30ns
|
||||
_EXP0_PU(); //Twp = 40ns, Tds = 40ns, Tdh = 0ns
|
||||
//16Mhz avr clk = 62.5ns period guarantees timing reqts
|
||||
//Need to check with scope to make sure EXP0 P/U effective
|
||||
_DATA_IP();
|
||||
}
|
||||
|
||||
|
||||
/* Desc:Emulate NES CPU Read as best possible
|
||||
* decode A15 from addrH to set /ROMSEL as expected
|
||||
* float EXP0
|
||||
* toggle M2 as NES would
|
||||
* insert some NOP's in to be slow like NES
|
||||
* Note:not the fastest read operation
|
||||
* Pre: nes_init() setup of io pins
|
||||
* Post:address left on bus
|
||||
* data bus left clear
|
||||
* EXP0 left floating
|
||||
* Rtn: None
|
||||
*/
|
||||
uint8_t emulate_nes_cpu_rd( uint8_t addrH, uint8_t addrL )
|
||||
{
|
||||
uint8_t read; //return value
|
||||
|
||||
//m2 should be low as it aids in disabling WRAM
|
||||
//this is also m2 state at beginging of CPU cycle
|
||||
//all these pins should already be in this state, but
|
||||
//go ahead and setup just to be sure since we're trying
|
||||
//to be as accurate as possible
|
||||
_EXP0_FLT(); //this could have been left pulled up
|
||||
_M2_LO(); //start of CPU cycle
|
||||
_ROMSEL_HI(); //trails M2
|
||||
_PRGRW_RD(); //happens just after M2
|
||||
|
||||
//set address bus
|
||||
ADDR_OUT = addrL;
|
||||
_ADDRH_SET(addrH);
|
||||
|
||||
//couple NOP's to wait a bit
|
||||
NOP();
|
||||
NOP();
|
||||
|
||||
//set M2 and /ROMSEL
|
||||
if( addrH >= 0x80 ) { //addressing cart rom space
|
||||
_M2_HI();
|
||||
_ROMSEL_LO(); //romsel trails M2 during CPU operations
|
||||
} else {
|
||||
_M2_HI();
|
||||
}
|
||||
|
||||
//couple more NOP's waiting for data
|
||||
NOP();
|
||||
NOP();
|
||||
NOP();
|
||||
NOP();
|
||||
|
||||
//latch data
|
||||
read = DATA_IN;
|
||||
|
||||
//return bus to default
|
||||
_M2_LO();
|
||||
_ROMSEL_HI();
|
||||
|
||||
return read;
|
||||
}
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
#ifndef _nes_h
|
||||
#define _nes_h
|
||||
|
||||
#include <avr/io.h>
|
||||
#include "pinport.h"
|
||||
#include "shared_dictionaries.h"
|
||||
#include "shared_errors.h"
|
||||
|
||||
uint8_t nes_opcode_only( uint8_t opcode );
|
||||
uint8_t nes_opcode_24b_operand( uint8_t opcode, uint8_t addrH, uint8_t addrL, uint8_t data );
|
||||
uint8_t nes_opcode_16b_operand_8b_return( uint8_t opcode, uint8_t addrH, uint8_t addrL, uint8_t *data );
|
||||
void discrete_exp0_prgrom_wr( uint8_t addrH, uint8_t addrL, uint8_t data );
|
||||
uint8_t emulate_nes_cpu_rd( uint8_t addrH, uint8_t addrL );
|
||||
|
||||
#endif
|
||||
|
|
@ -2,14 +2,14 @@
|
|||
|
||||
//This file was created based on pinport.h
|
||||
//the close relationship between these two files must be kept in mind when making changes.
|
||||
//This file is also very dependent on shared_pinport.h
|
||||
//the shared_pinport.h was generated from this file, so any changes here must be forwarded.
|
||||
//This file is also very dependent on shared_dict_pinport.h
|
||||
//the shared_dict_pinport.h was generated from this file, so any changes here must be forwarded.
|
||||
|
||||
/* Desc:Function takes an opcode which was transmitted via USB
|
||||
* then decodes it to call designated macro.
|
||||
* shared_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* shared_dict_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macro must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_pinport.h
|
||||
* opcode must be defined in shared_dict_pinport.h
|
||||
* Post:Macro call complete.
|
||||
* Rtn: SUCCESS if opcode found, ERR_UNKN_PP_OPCODE_ONLY if opcode not present.
|
||||
*/
|
||||
|
|
@ -284,14 +284,14 @@ void software_AHL_CLK()
|
|||
|
||||
/* Desc:Function takes an opcode and 8bit operand which was transmitted via USB
|
||||
* then decodes it to call designated macro/function.
|
||||
* shared_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* shared_dict_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macro must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_pinport.h
|
||||
* opcode must be defined in shared_dict_pinport.h
|
||||
* data bus must be free and clear
|
||||
* control pins must be initialized
|
||||
* -FF latch /OE pins set as outputs
|
||||
* -FF CLK pins low ready for CLK
|
||||
* See big CAUTION on shared_pinport.h for more details
|
||||
* See big CAUTION on shared_dict_pinport.h for more details
|
||||
* ADDR_OP() expected to be set
|
||||
* Post:Macro/function called with operand
|
||||
* data bus left free and clear when possible
|
||||
|
|
@ -370,16 +370,16 @@ uint8_t pinport_opcode_8b_operand( uint8_t opcode, uint8_t operand )
|
|||
/* Desc:Function takes an opcode and 16bit operand which was transmitted via USB
|
||||
* then decodes it to call designated macro/function.
|
||||
* operandMSB is most significant byte, operandLSB is least significant
|
||||
* shared_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* shared_dict_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_pinport.h
|
||||
* opcode must be defined in shared_dict_pinport.h
|
||||
* data bus must be free and clear
|
||||
* control pins must be initialized
|
||||
* -FF latch /OE pins set as outputs
|
||||
* -FF CLK pins low ready for CLK
|
||||
* ADDR_OP() is expected to be set.
|
||||
* /ROMSEL and M2 expected to be OP.
|
||||
* See big CAUTION on shared_pinport.h for more details
|
||||
* See big CAUTION on shared_dict_pinport.h for more details
|
||||
* Post:Macro/function called with operand
|
||||
* data bus left free and clear when possible
|
||||
* -some opcodes diliberately drive the bus
|
||||
|
|
@ -444,15 +444,15 @@ uint8_t pinport_opcode_16b_operand( uint8_t opcode, uint8_t operandMSB, uint8_t
|
|||
/* Desc:Function takes an opcode and 24bit operand which was transmitted via USB
|
||||
* then decodes it to call designated macro/function.
|
||||
* operandMSB is most signf byte, operandMID is center, operandLSB is least significant
|
||||
* shared_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* shared_dict_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_pinport.h
|
||||
* opcode must be defined in shared_dict_pinport.h
|
||||
* data bus must be free and clear
|
||||
* control pins must be initialized
|
||||
* -FF latch /OE pins set as outputs
|
||||
* -FF CLK pins low ready for CLK
|
||||
* ADDR_OP() is expected to be set.
|
||||
* See big CAUTION on shared_pinport.h for more details
|
||||
* See big CAUTION on shared_dict_pinport.h for more details
|
||||
* Post:Macro/function called with operand
|
||||
* data bus left free and clear when possible
|
||||
* -some opcodes may diliberately drive the bus
|
||||
|
|
@ -488,10 +488,10 @@ uint8_t pinport_opcode_24b_operand( uint8_t opcode, uint8_t operandMSB, uint8_t
|
|||
|
||||
/* Desc:Function takes an opcode and pointer to return value byte
|
||||
* then decodes it to retreive value.
|
||||
* shared_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* shared_dict_pinport.h is used in both host and fw to ensure opcodes/names align
|
||||
* Pre: Macros must be defined in firmware pinport.h
|
||||
* opcode must be defined in shared_pinport.h
|
||||
* See big CAUTION on shared_pinport.h for more details
|
||||
* opcode must be defined in shared_dict_pinport.h
|
||||
* See big CAUTION on shared_dict_pinport.h for more details
|
||||
* Post:pointer updated to value designated by opcode.
|
||||
* Rtn: SUCCESS if opcode found, ERR_UNKN_PP_OPCODE_8BRV if opcode not present.
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -174,6 +174,8 @@ void software_AXL_CLK();
|
|||
// Easier to add them than take them out maybe..?
|
||||
//Current rule is _ goes with () type macro
|
||||
|
||||
// used for a very short delay
|
||||
#define NOP() do { __asm__ __volatile__ ("nop"); } while (0)
|
||||
|
||||
//============================
|
||||
//ADDR[7:0] PORTA
|
||||
|
|
@ -323,7 +325,7 @@ void software_AXL_CLK();
|
|||
#define EXP0 PD0 //NES EXP0 controls a number of varying flash cart features...
|
||||
#define FC_APU PD0 //FC Audio in cart from 2A03 APU
|
||||
#define TDO PD0 //CPLD JTAG on INL-ROM NES/FC boards released after ~Oct2016
|
||||
#define S_RST PD0 //SNES /RESET pin used for CPLD prgm/play mode and SRAM CE
|
||||
#define SRST PD0 //SNES /RESET pin used for CPLD prgm/play mode and SRAM CE
|
||||
|
||||
#define LED PD1 //LED on INL retro prog-dumper
|
||||
#define EXP9 PD1 //NES dual purposed pin
|
||||
|
|
@ -354,6 +356,11 @@ void software_AXL_CLK();
|
|||
#define _EXP0_LO() _EXP0_lo(); _EXP0_op(); //Sets low then DDR to o/p
|
||||
#define _EXP0_PU() _EXP0_ip(); _EXP0_hi(); //maybe add some NOP() to allow time for pull up
|
||||
#define _EXP0_FLT() _EXP0_ip(); _EXP0_lo(); //Set to i/p w/o pullup
|
||||
//SNES /RESET versions, more permissible for driving EXP0 to 5v as NES cart shouldn't be inserted
|
||||
#define _SRST_IP() _EXP0_ip()
|
||||
#define _SRST_OP() _EXP0_op()
|
||||
#define _SRST_LO() _EXP0_lo()
|
||||
#define _SRST_HI() _EXP0_hi()
|
||||
|
||||
|
||||
#define _LED_IP() AUX_DDR &= ~(1<<LED)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
|
||||
#include "usb.h"
|
||||
|
||||
#include "pinport.h"
|
||||
|
||||
//USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]);
|
||||
/* This function is called when the driver receives a SETUP transaction from
|
||||
|
|
@ -48,9 +47,9 @@ typedef struct setup_packet{
|
|||
uint8_t bmRequestType; //contains endpoint
|
||||
uint8_t bRequest; //designates dictionary of opcode
|
||||
uint8_t opcode; //wValueLSB (little endian)
|
||||
uint8_t wValueMSB; //expansion byte
|
||||
uint8_t wIndexLSB; //operand LSB
|
||||
uint8_t wIndexMSB; //operand MSB
|
||||
uint8_t miscdata; //wValueMSB
|
||||
uint8_t operandLSB; //wIndexLSB
|
||||
uint8_t operandMSB; //wIndexMSB
|
||||
uint16_t wLength;
|
||||
}setup_packet;
|
||||
|
||||
|
|
@ -90,15 +89,15 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
|||
break;
|
||||
case PP_OPCODE_8BOP_MIN ... PP_OPCODE_8BOP_MAX:
|
||||
rv[0] = pinport_opcode_8b_operand(
|
||||
spacket->opcode, spacket->wIndexLSB );
|
||||
spacket->opcode, spacket->operandLSB );
|
||||
break;
|
||||
case PP_OPCODE_16BOP_MIN ... PP_OPCODE_16BOP_MAX:
|
||||
rv[0] = pinport_opcode_16b_operand(
|
||||
spacket->opcode, spacket->wIndexMSB, spacket->wIndexLSB );
|
||||
spacket->opcode, spacket->operandMSB, spacket->operandLSB );
|
||||
break;
|
||||
case PP_OPCODE_24BOP_MIN ... PP_OPCODE_24BOP_MAX:
|
||||
rv[0] = pinport_opcode_24b_operand( spacket->opcode,
|
||||
spacket->wValueMSB, spacket->wIndexMSB, spacket->wIndexLSB );
|
||||
spacket->miscdata, spacket->operandMSB, spacket->operandLSB );
|
||||
break;
|
||||
case PP_OPCODE_8BRV_MIN ... PP_OPCODE_8BRV_MAX:
|
||||
rv[0] = pinport_opcode_8b_return( spacket->opcode, &rv[1]);
|
||||
|
|
@ -108,6 +107,33 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
|||
rv[0] = ERR_BAD_PP_OP_MINMAX;
|
||||
}
|
||||
break; //end of PINPORT
|
||||
|
||||
case IO:
|
||||
switch (spacket->opcode) {
|
||||
case IO_OPCODE_ONLY_MIN ... IO_OPCODE_ONLY_MAX:
|
||||
rv[0] = io_opcode_only( spacket->opcode );
|
||||
break;
|
||||
default: //io opcode min/max definition error
|
||||
rv[0] = ERR_BAD_IO_OP_MINMAX;
|
||||
}
|
||||
break; //end of IO
|
||||
|
||||
case NES:
|
||||
switch (spacket->opcode) {
|
||||
case NES_OPCODE_24BOP_MIN ... NES_OPCODE_24BOP_MAX:
|
||||
rv[0] = nes_opcode_24b_operand( spacket->opcode,
|
||||
spacket->operandMSB, spacket->operandLSB, spacket->miscdata );
|
||||
break;
|
||||
case NES_OPCODE_16BOP_8BRV_MIN ... NES_OPCODE_16BOP_8BRV_MAX:
|
||||
rv[0] = nes_opcode_16b_operand_8b_return( spacket->opcode,
|
||||
spacket->operandMSB, spacket->operandLSB, &rv[1]);
|
||||
rlen++;
|
||||
break;
|
||||
default: //nes opcode min/max definition error
|
||||
rv[0] = ERR_BAD_NES_OP_MINMAX;
|
||||
}
|
||||
break; //end of NES
|
||||
|
||||
default:
|
||||
//request (aka dictionary) is unknown
|
||||
rv[0] = ERR_UNKN_DICTIONARY;
|
||||
|
|
|
|||
|
|
@ -6,6 +6,10 @@
|
|||
#include "usbdrv.h"
|
||||
#include "logic.h"
|
||||
#include "shared_dictionaries.h"
|
||||
#include "shared_errors.h"
|
||||
#include "pinport.h"
|
||||
#include "io.h"
|
||||
#include "nes.h"
|
||||
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -0,0 +1,114 @@
|
|||
#include "dictionary.h"
|
||||
|
||||
/* Make dictionary calls simpler
|
||||
* provide USBtransfer pointer with handle set to retro programmer
|
||||
* provide dictionary as defined in shared_dictionaries.h (request)
|
||||
* provide opcode from the dictionary (wValueLSB)
|
||||
* provide 16bit addr used for usb transfer index (optional, can also send 8bits applied to wIndexLSB)
|
||||
* provide miscdata optional to be used for wValueMSB
|
||||
*
|
||||
* makes call to usb_transfer after determining:
|
||||
* endpoint direction
|
||||
* data length
|
||||
*
|
||||
* debug print of call and return values
|
||||
*/
|
||||
|
||||
int dictionary_call( USBtransfer *transfer, uint8_t dictionary, uint8_t opcode, uint16_t addr, uint8_t miscdata)
|
||||
{
|
||||
transfer->request = dictionary;
|
||||
transfer->wValueMSB = miscdata;
|
||||
transfer->wValueLSB = opcode;
|
||||
transfer->wIndexMSB = (addr>>8);
|
||||
transfer->wIndexLSB = addr;
|
||||
|
||||
//default IN for now reading back error codes from short commands
|
||||
transfer->endpoint = USB_IN;
|
||||
//default length of zero
|
||||
transfer->wLength = 0;
|
||||
|
||||
//return data buffer big enough for one data packet
|
||||
uint8_t rbuf[8];
|
||||
rbuf[0] = 0xA5;
|
||||
rbuf[1] = 0xC3;
|
||||
rbuf[2] = 0xA5;
|
||||
rbuf[3] = 0xC3;
|
||||
rbuf[4] = 0xA5;
|
||||
rbuf[5] = 0xC3;
|
||||
rbuf[6] = 0xA5;
|
||||
rbuf[7] = 0xC3;
|
||||
transfer->data = rbuf;
|
||||
|
||||
|
||||
debug("dictionary call dict:%d opcode:%d/%x addr:%x data:%x", dictionary, opcode, opcode, addr, miscdata);
|
||||
switch (dictionary) {
|
||||
case PINPORT: debug("dict: PINPORT");
|
||||
transfer->wLength = 1;
|
||||
switch (opcode) {
|
||||
case PP_OPCODE_ONLY_MIN ... PP_OPCODE_ONLY_MAX:
|
||||
debug("PP_OPCODE_ONLY");
|
||||
break;
|
||||
case PP_OPCODE_8BOP_MIN ... PP_OPCODE_8BOP_MAX:
|
||||
debug("PP_OPCODE_8BOP");
|
||||
break;
|
||||
case PP_OPCODE_16BOP_MIN ... PP_OPCODE_16BOP_MAX:
|
||||
debug("PP_OPCODE_16BOP");
|
||||
break;
|
||||
case PP_OPCODE_24BOP_MIN ... PP_OPCODE_24BOP_MAX:
|
||||
debug("PP_OPCODE_24BOP");
|
||||
break;
|
||||
case PP_OPCODE_8BRV_MIN ... PP_OPCODE_8BRV_MAX:
|
||||
debug("PP_OPCODE_8BRV");
|
||||
transfer->wLength = 2;
|
||||
break;
|
||||
default: //pinport opcode min/max definition error
|
||||
sentinel("bad PP opcode min/max err:%d",ERR_BAD_PP_OP_MINMAX);
|
||||
}
|
||||
break; //end of PINPORT
|
||||
|
||||
case IO: debug("dict: IO");
|
||||
transfer->wLength = 1;
|
||||
switch (opcode) {
|
||||
case IO_OPCODE_ONLY_MIN ... IO_OPCODE_ONLY_MAX:
|
||||
debug("IO_OPCODE_ONLY");
|
||||
break;
|
||||
default: //io opcode min/max definition error
|
||||
sentinel("bad IO opcode min/max err:%d",ERR_BAD_IO_OP_MINMAX);
|
||||
}
|
||||
break; //end of IO
|
||||
|
||||
case NES: debug("dict: NES");
|
||||
transfer->wLength = 1;
|
||||
switch (opcode) {
|
||||
case NES_OPCODE_24BOP_MIN ... NES_OPCODE_24BOP_MAX:
|
||||
debug("NES_OPCODE_24BOP");
|
||||
break;
|
||||
case NES_OPCODE_16BOP_8BRV_MIN ... NES_OPCODE_16BOP_8BRV_MAX:
|
||||
debug("NES_OPCODE_16BOP_8BRV");
|
||||
transfer->wLength = 2;
|
||||
break;
|
||||
default: //nes opcode min/max definition error
|
||||
sentinel("bad NES opcode min/max err:%d",ERR_BAD_NES_OP_MINMAX);
|
||||
}
|
||||
break; //end of NES
|
||||
|
||||
default:
|
||||
//request (aka dictionary) is unknown
|
||||
sentinel("unknown DICT err:%d",ERR_UNKN_DICTIONARY);
|
||||
}
|
||||
|
||||
|
||||
int xfr_cnt;
|
||||
|
||||
xfr_cnt = usb_transfer( transfer );
|
||||
debug("xf: %d er: %d rv: %x, %x, %x, %x, %x, %x, %x",xfr_cnt, rbuf[0], rbuf[1], rbuf[2], rbuf[3], rbuf[4], rbuf[5], rbuf[6], rbuf[7]);
|
||||
check(rbuf[0] == SUCCESS, "retro programmer had error: %d, dict:%d, opcode:%d/%x, addr:%x, data:%x",rbuf[0], dictionary, opcode, opcode, addr, miscdata)
|
||||
//send command
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
printf("dictionary call went to error\n");
|
||||
return -1;
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
#ifndef _dictionary_h
|
||||
#define _dictionary_h
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <libusb.h>
|
||||
|
||||
//include prior to other file includes
|
||||
//that way DEBUG can be turned on/off for this file alone
|
||||
//uncomment to DEBUG this file alone
|
||||
#define DEBUG
|
||||
//"make debug" to get DEBUG msgs on entire program
|
||||
#include "dbg.h"
|
||||
|
||||
#include "usb_operations.h"
|
||||
#include "shared_errors.h"
|
||||
#include "shared_dictionaries.h"
|
||||
|
||||
//uncomment to DEBUG this file alone
|
||||
#define DEBUG
|
||||
//"make debug" to get DEBUG msgs on entire program
|
||||
#include "dbg.h"
|
||||
|
||||
int dictionary_call( USBtransfer *transfer, uint8_t dictionary, uint8_t opcode, uint16_t addr, uint8_t miscdata);
|
||||
|
||||
#endif
|
||||
|
|
@ -5,52 +5,14 @@ int erase_nes( USBtransfer *transfer )
|
|||
|
||||
debug("erasing");
|
||||
|
||||
int xfr_cnt;
|
||||
uint8_t rbuf[2];
|
||||
rbuf[0] = 0;
|
||||
rbuf[1] = 0;
|
||||
int i;
|
||||
|
||||
transfer->endpoint = USB_IN;
|
||||
transfer->request = PINPORT;
|
||||
transfer->data = rbuf;
|
||||
|
||||
uint8_t c[20];
|
||||
uint8_t o[20];
|
||||
|
||||
c[0] = LED_ON;
|
||||
c[1] = ADDR_OP;
|
||||
c[2] = DATA_IP;
|
||||
c[3] = M2_OP;
|
||||
c[4] = ROMSEL_OP;
|
||||
c[5] = PRGRW_OP;
|
||||
c[6] = CSRD_OP;
|
||||
c[7] = CSWR_OP;
|
||||
c[8] = AHL_OP;
|
||||
c[9] = AXLOE_OP;
|
||||
c[10] = AXL_CLK;
|
||||
c[11] = ADDR_RD;
|
||||
c[12] = ADDR_LO;
|
||||
c[13] = ADDR_RD;
|
||||
c[14] = LED_OFF;
|
||||
c[15] = LED_OFF;
|
||||
c[16] = LED_OFF;
|
||||
c[17] = LED_OFF;
|
||||
c[18] = LED_OFF;
|
||||
c[19] = LED_OFF;
|
||||
|
||||
for ( i = 0; i < 20; i++) {
|
||||
transfer->wValueLSB = c[i];
|
||||
if (c[i] >= 0xc0) transfer->wLength = 2;
|
||||
else transfer->wLength = 1;
|
||||
xfr_cnt = usb_transfer( transfer );
|
||||
debug("xf: %d OP: %d/%x er: %d rv: %x",xfr_cnt, c[i], c[i], rbuf[0], rbuf[1]);
|
||||
rbuf[0] = 0xAA;
|
||||
rbuf[1] = 0;
|
||||
|
||||
//send command
|
||||
}
|
||||
|
||||
//dict opcode addr data
|
||||
dictionary_call( transfer, IO, IO_RESET, 0, 0);
|
||||
dictionary_call( transfer, IO, NES_INIT, 0, 0);
|
||||
dictionary_call( transfer, NES, DISCRETE_EXP0_PRGROM_WR, 0x5555, 0xAA);
|
||||
dictionary_call( transfer, NES, DISCRETE_EXP0_PRGROM_WR, 0x2AAA, 0x55);
|
||||
dictionary_call( transfer, NES, DISCRETE_EXP0_PRGROM_WR, 0x5555, 0x90);
|
||||
dictionary_call( transfer, NES, EMULATE_NES_CPU_RD, 0x8000, 0);
|
||||
dictionary_call( transfer, NES, EMULATE_NES_CPU_RD, 0x8001, 0);
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@
|
|||
#include "usb_operations.h"
|
||||
#include "shared_errors.h"
|
||||
#include "shared_dictionaries.h"
|
||||
#include "dictionary.h"
|
||||
|
||||
//uncomment to DEBUG this file alone
|
||||
#define DEBUG
|
||||
|
|
|
|||
|
|
@ -33,6 +33,7 @@ libusb_device_handle * open_usb_device( libusb_context *context )
|
|||
//returns 0 on success LIBUSB_ERROR code on failure
|
||||
//int libusb_init ( libusb_context ** context)
|
||||
int usb_init = libusb_init(&context);
|
||||
debug("Initalized libusb");
|
||||
check( usb_init == LIBUSB_SUCCESS, "Failed to initialize libusb: %s", libusb_strerror(usb_init));
|
||||
|
||||
//void libusb_set_debug ( libusb_context * ctx, int level )
|
||||
|
|
@ -51,7 +52,9 @@ libusb_device_handle * open_usb_device( libusb_context *context )
|
|||
// Returns a list of USB devices currently attached to the system.
|
||||
// return value is number of devices plus one as list is null terminated, or LIBUSB_ERROR if negative.
|
||||
// Must free device list after done with it
|
||||
debug("getting device list");
|
||||
ssize_t dev_count = libusb_get_device_list( context, &device_list);
|
||||
debug("got device list");
|
||||
check( dev_count >= 0, "libusb unable to find any devices: %s", libusb_strerror(dev_count));
|
||||
|
||||
ssize_t i = 0;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,56 @@
|
|||
#ifndef _shared_dict_io_h
|
||||
#define _shared_dict_io_h
|
||||
|
||||
//define dictionary's reference number in the shared_dictionaries.h file
|
||||
//then include this dictionary file in shared_dictionaries.h
|
||||
//The dictionary number is literally used as usb transfer request field
|
||||
//the opcodes and operands in this dictionary are fed directly into usb setup packet's wValue wIndex fields
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
// IO DICTIONARY
|
||||
//
|
||||
// opcodes contained in this dictionary must be implemented in firmware/source/io.c
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
// OPCODES with no operand and no return value besides SUCCESS/ERROR_CODE
|
||||
//=============================================================================================
|
||||
// 0x00-0xFF
|
||||
// Detect this opcode/operand setup with opcode between the following defines:
|
||||
#define IO_OPCODE_ONLY_MIN 0x00
|
||||
#define IO_OPCODE_ONLY_MAX 0xFF
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
//pullup as many cart pins as possible
|
||||
//goal to be safe state for all hardware
|
||||
//doesn't currently contain any checks to report error/success from
|
||||
//this is intended to be the "reset" safest condition for the kazzo
|
||||
//LED is pulled up (DIM) to help indicate this io state
|
||||
//EXP FF is disabled due to pull up on /OE
|
||||
#define IO_RESET 0x00
|
||||
|
||||
|
||||
//NES cartridge interfacing setup
|
||||
//set outputs as required
|
||||
//latch address of $0000
|
||||
//disable NES cart memories
|
||||
#define NES_INIT 0x01
|
||||
|
||||
//SNES cartridge interfacing setup
|
||||
//set outputs as required
|
||||
//latch address of $000000
|
||||
//disable cart memories
|
||||
//reset high disables SRAM and puts INL carts in PRGM mode
|
||||
#define SNES_INIT 0x02
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
#ifndef _shared_dict_nes_h
|
||||
#define _shared_dict_nes_h
|
||||
|
||||
//define dictionary's reference number in the shared_dictionaries.h file
|
||||
//then include this dictionary file in shared_dictionaries.h
|
||||
//The dictionary number is literally used as usb transfer request field
|
||||
//the opcodes and operands in this dictionary are fed directly into usb setup packet's wValue wIndex fields
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
// NES DICTIONARY
|
||||
//
|
||||
// opcodes contained in this dictionary must be implemented in firmware/source/nes.c
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
|
||||
// OPCODES with no operand and no return value besides SUCCESS/ERROR_CODE
|
||||
|
||||
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
// OPCODES WITH OPERAND and no return value besides SUCCESS/ERROR_CODE
|
||||
//=============================================================================================
|
||||
// 0x00-0x7F
|
||||
// Detect this opcode/operand setup with opcode between the following defines:
|
||||
#define NES_OPCODE_24BOP_MIN 0x00
|
||||
#define NES_OPCODE_24BOP_MAX 0x7F
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
|
||||
|
||||
|
||||
//Discrete board PRG-ROM only write, does not write to mapper
|
||||
//This is a /WE controlled write with data latched on rising edge EXP0
|
||||
//PRG-ROM /WE <- EXP0 w/PU
|
||||
//PRG-ROM /OE <- /ROMSEL
|
||||
//PRG-ROM /CE <- GND
|
||||
//PRG-ROM write: /WE & /CE low, /OE high
|
||||
//mapper '161 CLK <- /ROMSEL
|
||||
//mapper '161 /LOAD <- PRG R/W
|
||||
//wValueMSB: data
|
||||
//wIndex: address
|
||||
#define DISCRETE_EXP0_PRGROM_WR 0x00
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
// OPCODES WITH OPERAND AND RETURN VALUE plus SUCCESS/ERROR_CODE
|
||||
//=============================================================================================
|
||||
//
|
||||
//
|
||||
#define NES_OPCODE_16BOP_8BRV_MIN 0x80
|
||||
#define NES_OPCODE_16BOP_8BRV_MAX 0xFF
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
//read from NES CPU ADDRESS
|
||||
//set /ROMSEL, M2, and PRG R/W
|
||||
//read from cartridge just as NES's CPU would
|
||||
//nice and slow trying to be more like the NES
|
||||
#define EMULATE_NES_CPU_RD 0x80
|
||||
|
||||
#endif
|
||||
|
|
@ -144,11 +144,17 @@
|
|||
#define EXP0_op 59
|
||||
#define EXP0_lo 60 //Don't call this assuming EXP0 DDR is set to o/p
|
||||
#define EXP0_hi 61 //Don't call this unless you're certain pin is 5v tolerant
|
||||
//SNES versions uppercase as assuming 5v tolerance without NES cart
|
||||
#define SRST_IP 58
|
||||
#define SRST_OP 59
|
||||
#define SRST_LO 60
|
||||
#define SRST_HI 61
|
||||
//User options pull up, force low, and float
|
||||
#define EXP0_LO 62 //Sets low then DDR to o/p
|
||||
#define EXP0_PU 63 //maybe add some NOP(); to allow time for pull up
|
||||
#define EXP0_FLT 64 //Set to i/p w/o pullup
|
||||
|
||||
|
||||
#define LED_IP 65
|
||||
#define LED_OP 66
|
||||
#define LED_OFF 67
|
||||
|
|
|
|||
|
|
@ -5,12 +5,91 @@
|
|||
//these numbers literally sent in usb control transfer in request field
|
||||
//the included dictionaries define opcodes and operands contained in transfer wValue wIndex fields
|
||||
//they also define expected data buffer sizes and contents.
|
||||
//
|
||||
//TODO eventually the host code should have access to these libraries during run time.
|
||||
//that way character strings can be interpreted by parsing the dictionary .h file
|
||||
//this would also allow for dictionary expansion after compilation of host code.
|
||||
//However the kazzo fw would still need rebuilt to support dictionary expansion.
|
||||
//Possible to take this one step further and remove dictionaries from host compiliation.
|
||||
//that way you simply point the host to a dictionary directory at runtime.
|
||||
//Perhaps utilizing a database of some sort would be better than directory of text/.h files.
|
||||
//but since firmware build relies on dictionary definition at build time, perhaps the simplest
|
||||
//solution of using those avr build .h files slurped up by host at run time is safest and easiest.
|
||||
//having host capability to convert command string to the usb dict/opcode is the first
|
||||
//step in having scripting support on host side. The thought above just expands it one
|
||||
//step further making the dictionaries themselves operate as run time 'scripts'.
|
||||
|
||||
//don't define dictionary #0 as it is common to forget to define
|
||||
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
#define PINPORT 1
|
||||
#include "shared_dict_pinport.h"
|
||||
//pinport dictionary has various commands giving low and mid level access to retro prog's i/o pins.
|
||||
//It also contains internal avr registers associated with the avr's io.
|
||||
//Access to other internal avr registers should be placed in other associated dictionaries.
|
||||
//The opcodes in this dictionary should not have any cyclic effect such as pulsing /ROMSEL
|
||||
//low to read data and then disabling taking /ROMSEL high again. These commands are intended
|
||||
//to appear as a single change/edge to cartridge hardware. Only potential exception to this
|
||||
//is AHL/AXL clocking which is used to latch values to FF's, that effectively is only one
|
||||
//state change for the cartridge hardware.
|
||||
//
|
||||
// Many of the opcodes in the second half of this dictionary have the following rules:
|
||||
//
|
||||
// The opcodes that follow operate under some rules that you must adhere to if calling
|
||||
// 1) Data bus should be free and clear when possible
|
||||
// -DATA_IP() is default state
|
||||
// -Be cognizant if you're driving the data bus
|
||||
// many of these opcodes use the data bus to function.
|
||||
// -Many of these opcodes will end up driving the data bus
|
||||
// know when that'll happen and free bus when data retreived
|
||||
//
|
||||
// -Flipflops must be initialized
|
||||
// this primarily means CLK pin must be OP and LO ready for CLK command
|
||||
// -output of FF must be enabled to actually feed latched value on cart
|
||||
// final pcb version will enable EXP FF after clocking.
|
||||
// early pcb versions have FF /OE on separate pin not so automatic.
|
||||
//
|
||||
// -control pins must be initialized
|
||||
// -enable OP on pins necessary to perform desire of command
|
||||
// ie M2 and /ROMSEL must be OP if you're trying to change them with a command.
|
||||
//
|
||||
// -be cognizant of what pins are inputs and which are outputs
|
||||
// ie driving PPU /A13 will be fed back to CIRAM /CE so it needs to be IP
|
||||
// -if in doubt, leave it as input with pull up, atleast that shouldn't break anything
|
||||
//
|
||||
// -ADDR_OP is default state, these opcodes assume it to be set as it shouldn't conflict
|
||||
// -/ROMSEL & M2 expected to be set as outputs
|
||||
//
|
||||
//
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
#define IO 2
|
||||
#include "shared_dict_io.h"
|
||||
//io dictionary contains commands
|
||||
//Scope of functions contained is intended to be general and generic not specific
|
||||
//to the cartridge inserted. The closest these operations get to being cart/system
|
||||
//specific is in setup for a system. Calling the cart/system setup contained here
|
||||
//prepares kazzo for system specific commands. Once complete with system specifc
|
||||
//commands come back here to 'deinitialize' access to that cartridge.
|
||||
//commands in this dictionary are meant to estabilish baseline rules of i/o to
|
||||
//support calling higher level system/cart specific functions.
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
#define NES 3
|
||||
#include "shared_dict_nes.h"
|
||||
//nes dictionary contains commands
|
||||
//These commands rely on io initialization from io dictionary prior to calling
|
||||
//This library is intended to contain all NES related opcodes/commands
|
||||
//=============================================================================================
|
||||
//=============================================================================================
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -6,13 +6,19 @@
|
|||
//greater than 128 are possible avr return codes
|
||||
#define ERR_UNKN_DICTIONARY 128
|
||||
#define ERR_BAD_PP_OP_MINMAX 129
|
||||
#define ERR_BAD_IO_OP_MINMAX 130
|
||||
#define ERR_BAD_NES_OP_MINMAX 131
|
||||
|
||||
|
||||
#define ERR_UNKN_PP_OPCODE_ONLY 139
|
||||
#define ERR_UNKN_PP_OPCODE_8BOP 130
|
||||
#define ERR_UNKN_PP_OPCODE_16BOP 131
|
||||
#define ERR_UNKN_PP_OPCODE_24BOP 132
|
||||
#define ERR_UNKN_PP_OPCODE_8BRV 133
|
||||
#define ERR_UNKN_PP_OPCODE_ONLY 140
|
||||
#define ERR_UNKN_PP_OPCODE_8BOP 141
|
||||
#define ERR_UNKN_PP_OPCODE_16BOP 142
|
||||
#define ERR_UNKN_PP_OPCODE_24BOP 143
|
||||
#define ERR_UNKN_PP_OPCODE_8BRV 144
|
||||
|
||||
#define ERR_UNKN_IO_OPCODE_ONLY 150
|
||||
|
||||
#define ERR_UNKN_NES_OPCODE_24BOP 160
|
||||
#define ERR_UNKN_NES_OPCODE_16BOP_8BRV 161
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue