36 lines
771 B
C
36 lines
771 B
C
#include "io.h"
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//pullup as many cart pins as possible
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//goal to be safe state for all hardware
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void io_pullup()
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{
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//pull up addr[7:0] bus
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_ADDR_IP();
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_ADDR_HI();
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//pull up data bus
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_DATA_IP();
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_DATA_HI();
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//pull up control port
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_CTL_IP();
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_CTL_HI();
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//pull up aux port
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_AUX_IP();
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_AUX_HI();
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//Aux port EXP /OE control
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//pull up on EXP FF should disable FF ouput
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//EXP0 input no pullup
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//Lots of possibilities, ~safe bet it will have it's own pull-up/down if needed.
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//SNES /RESET pin disables SRAM on first few pcb versions
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//NES PRG-ROM /OE (with pulldown) on old INL-ROM v1 boards w/pulldown
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//NED PRG-ROM /WE (with pullup) on INL-ROM v3 boards w/pullup
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//NES CPLD JTAG TDO non-5v tolerant
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_EXP0_FLT();
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//LED LAST displaying complete..
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}
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