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[coco] Nmi fix #815

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Merged
merged 2 commits into from
Nov 10, 2024
Merged

[coco] Nmi fix #815

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f6a5582
ini for my cococart
jeffpiep Sep 28, 2024
0c6cdde
disable pull resistors on NMI pin 27
jeffpiep Nov 10, 2024
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9 changes: 8 additions & 1 deletion build-platforms/platformio-fujinet-coco-devkitc.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,18 @@ build_platform = BUILD_COCO
build_bus = DRIVEWIRE
build_board = fujinet-coco-devkitc

[env]
upload_port = /dev/ttyUSB0
upload_speed = 460800
monitor_port = /dev/ttyUSB0
monitor_speed = 115200

[env:fujinet-coco-devkitc]
platform = espressif32@${fujinet.esp32_platform_version}
platform_packages = ${fujinet.esp32_platform_packages}
board = fujinet-v1-8mb
build_type = debug
build_flags =
${env.build_flags}
-D PINMAP_COCO_DEVKITC
-D PINMAP_COCO_CART
-D FORCE_UART_BAUD=115200
4 changes: 3 additions & 1 deletion pico/coco/main.c
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Expand Up @@ -15,6 +15,7 @@
#define RWPIN 24
// CLKPIN 25 - defined in cococart.pio
// CTSPIN 26 - defined in cococart.pio
#define NMIPIN 27
#define ADDRWIDTH 16 // 64k address space
// #define ROMWIDTH 14 // 16k cart rom space
// #define DATAWIDTH 8
Expand Down Expand Up @@ -121,7 +122,7 @@ void initio()
{
const uint32_t addrmask = 0xffff << PINROMADDR;
const uint32_t datamask = 0xff << PINROMDATA;
const uint32_t ctrlmask = (1 << CLKPIN) | (1 << CTSPIN) | (1 << RWPIN);
const uint32_t ctrlmask = (1 << CLKPIN) | (1 << CTSPIN) | (1 << RWPIN) | (1 << NMIPIN);

gpio_init_mask(addrmask | datamask | ctrlmask);
gpio_set_dir_all_bits(0);
Expand All @@ -135,6 +136,7 @@ void initio()
gpio_set_pulls(CTSPIN, true, false);
gpio_disable_pulls(CLKPIN);
gpio_disable_pulls(RWPIN);
gpio_disable_pulls(NMIPIN);
// gpio_set_pulls(BUGPIN, false, true);

}
Expand Down