Search found 3 matches
- Wed Dec 16, 2020 5:45 am
- Forum: ESP IoT Solution 中文讨论版
- Topic: ESP32 I2S CLK飄動問題
- Replies: 0
- Views: 5659
ESP32 I2S CLK飄動問題
請問ESP32 I2S CLK一般操作情況下，頻率會一直在變嗎? 目前我們再操作PDM麥克風的時候，我們量到clk是2.6~2.9MHz在變化 這是初始化設定的部分程式碼。 //i2s number #define I2S_NUM (0) //i2s sample rate #define I2S_SAMPLE_RATE (44100) //i2s data bits #define I2S_SAMPLE_BITS (16) //I2S read buffer length #define I2S_READ_LEN ((I2S_SAMPLE_BITS / 8) * 1024) //I2S da...
- Wed Dec 16, 2020 5:40 am
- Forum: ESP IoT Solution 中文讨论版
- Topic: ESP32存取SD Card容易造成损毁
- Replies: 3
- Views: 9151
Re: ESP32存取SD Card容易造成损毁
我們會看到下面的ERROR MESSAGE E (34147) sdmmc_cmd: sdmmc_read_sectors_dma: sdmmc_send_cmd returned 0x107 E (34148) diskio_sdmmc: sdmmc_read_blocks failed (263) I (35003) [MAIN_APP]: FREE ESP_HEAD 11016 E (35010) [Gen_Sen]: 04edh004:get data timeout E (35149) sdmmc_req: sdmmc_host_wait_for_event returned 0x1...
- Tue Dec 01, 2020 6:55 am
- Forum: ESP-IDF
- Topic: How to switch between wifi AP mode and STA mode correctly?
- Replies: 1
- Views: 3428
How to switch between wifi AP mode and STA mode correctly?
Hi All I am new, I have a project that it require to switch between WiFi AP mode and WiFi STA mode (Not AP_STA mode), However, in my implementation, I always get system panic problem when I try to restart wifi to STA mode from AP mode or AP mode from STA mode, so I want to ask where I get wrong. Bel...