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- Tue Mar 02, 2021 12:05 am
- Forum: ESP-IDF
- Topic: Can't read I2S data from Cell Module to ESP32 in PCM slave mode
- Replies: 1
- Views: 2771
Can't read I2S data from Cell Module to ESP32 in PCM slave mode
I'm trying to read PCM data from a SIMCOM SIM7500A cell module using an ESP32's i2s peripheral. Unfortunately, it seems like the i2s interrupt is never firing, and the call to `i2s_read` never terminates. The cell module datasheet says that the PCM interface "can be used in short sync master mode on...