Gee
2196633ed5
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First commit of the repo. Contents beyond the v0.1 simulator and layout: - Full Pico 2 W firmware (firmware/app, drivers, engine port, host test). - BANK page and 404 mode A/B removed; learned pads play exactly what was learned. - 404/MiniFreak renamed to KIT/SYNTH throughout (jacks, code, sim, docs, layout labels; wiring rebuilt). - ROLL returns to page select after a re-roll; a freshly learned track turns on. - LCD contrast 66. - ROOT and SCALE pages: 21 scales, AUTO = the seed picks; global and sticky. Intended music change: the scale table grew from 8 to 21 and AUTO picks from all of them, so every seed's scale changed. Vectors regenerated with npm run vectors, plus new key-override cases. Flash record is now version 2. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
#include "midi_uart.h"
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#include "hardware/gpio.h"
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#include "hardware/uart.h"
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#define PIN_OUT_KIT 0 /* UART0 TX */
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#define PIN_IN 1 /* UART0 RX, 6N137 output with a 1 kΩ pull-up on the board */
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#define PIN_OUT_SYNTH 4 /* UART1 TX */
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#define MIDI_BAUD 31250
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static uart_inst_t *const PORTS[2] = { uart0, uart1 };
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void midi_init(void){
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uart_init(uart0, MIDI_BAUD);
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uart_init(uart1, MIDI_BAUD);
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uart_set_format(uart0, 8, 1, UART_PARITY_NONE);
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uart_set_format(uart1, 8, 1, UART_PARITY_NONE);
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gpio_set_function(PIN_OUT_KIT, GPIO_FUNC_UART);
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gpio_set_function(PIN_IN, GPIO_FUNC_UART);
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gpio_set_function(PIN_OUT_SYNTH, GPIO_FUNC_UART); /* GP5 (UART1 RX) stays a matrix row */
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gpio_pull_up(PIN_IN);
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/* each MIDI current loop draws 6–8 mA, above the 4 mA default */
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gpio_set_drive_strength(PIN_OUT_KIT, GPIO_DRIVE_STRENGTH_12MA);
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gpio_set_drive_strength(PIN_OUT_SYNTH, GPIO_DRIVE_STRENGTH_12MA);
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}
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void midi_send(int port, const uint8_t *bytes, int n){ uart_write_blocking(PORTS[port], bytes, (size_t)n); }
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void midi_note_on(int port, int ch, int note, int vel){
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uint8_t m[3] = { (uint8_t)(0x90 | (ch & 15)), (uint8_t)(note & 127), (uint8_t)(vel & 127) };
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midi_send(port, m, 3);
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}
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void midi_note_off(int port, int ch, int note){
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uint8_t m[3] = { (uint8_t)(0x80 | (ch & 15)), (uint8_t)(note & 127), 0 };
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midi_send(port, m, 3);
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}
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int midi_in_read(void){ return uart_is_readable(uart0) ? uart_getc(uart0) : -1; }
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