I'm designing a serial cable replacement over BLE using the ATBTLC1000 SoC and MKL17Z MCU as external host. The ATBTLC1000 uses a 4-pin UART interface (RX, TX, RTS and CTS) that must be connected to the MCU UART and enabled for the UART interface to be functional. The problem is the LPUART on MKL17 has not any RTS/CTS lines for the hardware flow control. Is it possible to implement these 2 ports using GPIOs? Is there any workaround to solve this?
thanks in advance,