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fix beep on startup
https://forum.pjrc.com/threads/64592-Teensyduino-1-54-Beta-5?p=263595&viewfull=1#post263595dds
Frank
3 years ago
1 changed files with 2 additions and 1 deletions
+ 2
- 1
output_pt8211.cpp
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| void AudioOutputPT8211::begin(void) | void AudioOutputPT8211::begin(void) | ||||
| { | { | ||||
| memset(i2s_tx_buffer, 0, sizeof(i2s_tx_buffer)); | |||||
| dma.begin(true); // Allocate the DMA channel first | dma.begin(true); // Allocate the DMA channel first | ||||
| block_left_1st = NULL; | block_left_1st = NULL; | ||||
| I2S0_TCSR |= I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE | I2S_TCSR_FR; | I2S0_TCSR |= I2S_TCSR_TE | I2S_TCSR_BCE | I2S_TCSR_FRDE | I2S_TCSR_FR; | ||||
| return; | return; | ||||
| #elif defined(__IMXRT1052__) || defined(__IMXRT1062__) | #elif defined(__IMXRT1052__) || defined(__IMXRT1062__) | ||||
| arm_dcache_flush_delete(i2s_tx_buffer, sizeof(i2s_tx_buffer)); | |||||
| #if defined(__IMXRT1052__) | #if defined(__IMXRT1052__) | ||||
| CORE_PIN6_CONFIG = 3; //1:TX_DATA0 | CORE_PIN6_CONFIG = 3; //1:TX_DATA0 | ||||
| #elif defined(__IMXRT1062__) | #elif defined(__IMXRT1062__) |
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