8 years, 10 months ago.

Serial Terminal and communication with ESP8266

I have been trying without success to get my mbed Nucleo 411 to talk to my ESP8266. I have a FTDI chip that works sometimes, but multiple framing errors make it difficult to use. My question is what serial pin's should I use to talk to my ESP8266 chip? I have tried the arduino compatle serial pins on the PIN Out map, but have heard that those will not be active unless I snip jumpers. Next I went to the other serial connections I could find on the board (PA_9 & PA_10) or (PA_7 & PA_15), but had no luck. I did read somewhere that the supported baud rate on some of the serial connections are lower on the some of the serial connections, but I am not sure if that is the same issue. https://developer.mbed.org/questions/6236/Nucleo-F411RE-USART2-stops-sending-under/

Any help is appreciated.

Here is the code I was trying to get working (new serial values added in below): https://developer.mbed.org/users/mbedAustin/code/SerialDeviceTerminal/

RawSerial pc(USBTX, USBRX); RawSerial dev(PA_9, PA_10); DigitalOut led1(LED1); DigitalOut led4(LED4);

void dev_recv() { led1 = !led1; while(dev.readable()) { pc.putc(dev.getc()); } }

void pc_recv() { led4 = !led4; while(pc.readable()) { dev.putc(pc.getc()); } }

int main() { pc.baud(115200); dev.baud(115200);

pc.attach(&pc_recv, Serial::RxIrq); dev.attach(&dev_recv, Serial::RxIrq);

while(1) { sleep(); } }

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