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tracker was synchronized with rp2040 pwm clock which was dependent on… #107

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Merged
marcel-licence merged 1 commit into from
Mar 1, 2026
Merged

tracker was synchronized with rp2040 pwm clock which was dependent on… #107

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12 changes: 8 additions & 4 deletions src/audio_module.h
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Original file line number Diff line number Diff line change
Expand Up @@ -249,10 +249,10 @@ void Audio_Setup(void)
#else /* #ifndef RP2350_USE_I2S_ML_LIB */
rp2350_i2s_init(PICO_AUDIO_I2S_DATA_PIN, PICO_AUDIO_I2S_CLOCK_PIN_BASE);
Serial.printf("rp2350_i2s_init\n");
Serial.printf("\tclock_pin_base: %u (->BCK)\n", PICO_AUDIO_I2S_DATA_PIN);
Serial.printf("\tdata_pin: %u (-> DIN) \n", PICO_AUDIO_I2S_CLOCK_PIN_BASE);
Serial.printf("\tWCLK/LCK: %u\n", PICO_AUDIO_I2S_CLOCK_PIN_BASE + 1);
#endif /* #endif RP2350_USE_I2S_ML_LIB */
Serial.printf("\tclock_pin_base: %u (->BCK)\n", PICO_AUDIO_I2S_CLOCK_PIN_BASE);
Serial.printf("\tdata_pin: %u (-> DIN) \n", PICO_AUDIO_I2S_DATA_PIN);
Serial.printf("\tWCLK/LCK: %u\n", PICO_AUDIO_I2S_CLOCK_PIN_BASE + 1);
#endif


Expand All @@ -268,9 +268,13 @@ void Audio_Setup(void)
#ifdef RP2040_AUDIO_PWM
uint8_t pwmPinNumber = RP2040_AUDIO_PWM_PIN;
Serial.printf("Initialize pwm audio used without DAC pin %d + pin %d:\n", pwmPinNumber, pwmPinNumber + 1);
Serial.printf(" F_CPU: %d\n", F_CPU);
Serial.printf(" sample rate: %d\n", SAMPLE_RATE);
Serial.printf(" buffer size: %d\n", SAMPLE_BUFFER_SIZE);
RP2040_Audio_Pwm_Init(pwmPinNumber, SAMPLE_RATE, WavPwmDataBuff, WavPwmDataBuff2, SAMPLE_BUFFER_SIZE);
uint64_t sampleRate_at_125MHz = SAMPLE_RATE;
sampleRate_at_125MHz *= 125000000ULL;
sampleRate_at_125MHz /= ((uint64_t)F_CPU);
RP2040_Audio_Pwm_Init(pwmPinNumber, sampleRate_at_125MHz, WavPwmDataBuff, WavPwmDataBuff2, SAMPLE_BUFFER_SIZE);
#endif

#if 0
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