make sound work

2025-08-16 23:06:15 +02:00
parent b71c83a5ca
commit f7c5959b0a
58 changed files with 25933 additions and 25820 deletions
@@ -0,0 +1,59 @@
+// -------------------------------------------------- //
+// This file is autogenerated by pioasm; do not edit! //
+// -------------------------------------------------- //
+
+#pragma once
+
+#if !PICO_NO_HARDWARE
+#include "hardware/pio.h"
+#endif
+
+// --------- //
+// audio_i2s //
+// --------- //
+
+#define audio_i2s_wrap_target 0
+#define audio_i2s_wrap 7
+
+#define audio_i2s_offset_entry_point 7u
+
+static const uint16_t audio_i2s_program_instructions[] = {
+            //     .wrap_target
+    0x7001, //  0: out    pins, 1         side 2     
+    0x1840, //  1: jmp    x--, 0          side 3     
+    0x6001, //  2: out    pins, 1         side 0     
+    0xe82e, //  3: set    x, 14           side 1     
+    0x6001, //  4: out    pins, 1         side 0     
+    0x0844, //  5: jmp    x--, 4          side 1     
+    0x7001, //  6: out    pins, 1         side 2     
+    0xf82e, //  7: set    x, 14           side 3     
+            //     .wrap
+};
+
+#if !PICO_NO_HARDWARE
+static const struct pio_program audio_i2s_program = {
+    .instructions = audio_i2s_program_instructions,
+    .length = 8,
+    .origin = -1,
+};
+
+static inline pio_sm_config audio_i2s_program_get_default_config(uint offset) {
+    pio_sm_config c = pio_get_default_sm_config();
+    sm_config_set_wrap(&c, offset + audio_i2s_wrap_target, offset + audio_i2s_wrap);
+    sm_config_set_sideset(&c, 2, false, false);
+    return c;
+}
+
+static inline void audio_i2s_program_init(PIO pio, uint sm, uint offset, uint data_pin, uint clock_pin_base) {
+    pio_sm_config sm_config = audio_i2s_program_get_default_config(offset);
+    sm_config_set_out_pins(&sm_config, data_pin, 1);
+    sm_config_set_sideset_pins(&sm_config, clock_pin_base);
+    sm_config_set_out_shift(&sm_config, false, true, 32);
+    pio_sm_init(pio, sm, offset, &sm_config);
+    uint pin_mask = (1u << data_pin) | (3u << clock_pin_base);
+    pio_sm_set_pindirs_with_mask(pio, sm, pin_mask, pin_mask);
+    pio_sm_set_pins(pio, sm, 0); // clear pins
+    pio_sm_exec(pio, sm, pio_encode_jmp(offset + audio_i2s_offset_entry_point));
+}
+
+#endif