We have implemented dialog DA14681 on a custom board operating as a slave device.
Our system main purpose is to drive a peripheral through SPI when receiving commands through BLE SPS or USB CDC
We implemented the spi adapter and manly use the SDK ad_write_function.
We have different problems :
- when we send multiple SPI write commands, some are incompletes. We have a use case where we need to send 256 times a 152 bytes data message(all 0xFF for instance), some of the data messages are randomly not complete as below :