Commit Graph

4 Commits

Author SHA1 Message Date
paul eeepc a89caf2454 Detecting some flash carts including NROM and UNROM.
Using CHR-RAM sensing, and flash manf/prod ID based on PRG-ROM banking

fixing bug in firmware for ppu writes was ANDing in /A13 instead of ORing..

adding datasheets to hardware folder for 5v PLCC and 3v TSOP flash used on all flash boards
2016-12-08 21:52:47 -06:00
Paul Molloy c6a68c679f Adding EXP0_PULLUP_TEST should probably verify pullup on EXP0 provides
logic 1 if relying on it.  Seems to work fine on NES discrete and
INLXO-ROM boards where planning to utilize it.  SNES can't pull up due to
pulldown and original famicom cart can't either perhaps because of
EXP6 EXP FF output being too much of a load..?
2016-11-27 17:47:40 -06:00
paul eeepc cd6378b8c5 SNES dictionary creation, addition of NES cpu/ppu read/writes
cleaned up firmware pinport.h used PURPLE/GREEN KAZZO for all #ifdef's

AVR Memory Usage
----------------
Device: atmega164a

Program:    3404 bytes (20.8% Full)
(.text + .data + .bootloader)

Data:         53 bytes (5.2% Full)
(.data + .bss + .noinit)

final kazzo design hex commited as comparable build to the past two commits of green/purple.
So this .hex commit is apples to apples with recently commited purple/green .hex commits.
2016-11-27 15:32:36 -06:00
Paul Molloy 7d00145431 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)
2016-11-27 00:18:46 -06:00