5 Replies Latest reply on Mar 19, 2018 6:34 PM by pengfei.zhai_2710136

    Can not establish serial connection with BCM43438 BT



           We are developing a WIFI/BLE adapter board based BCM43438 to our RISC-V chip.  The BCM43438 board schematic reference iMX7 development board design and be posted below. After we produced a fully new board, I want use PC to send UART command for test. I first send RESET command (0x01 0x14 0x0C 0x00) to BT with both hardware flow control and without, but none has response. All power are OK, the board use a 26mhz external crystal and a 32.768k LPO. Do I lost some  procedure cause no response?