software reset by blue tooth and serial communication crush.

RE: software reset by blue tooth and serial communication crush.

Sigurd — Mon, 20 Mar 2017 12:42:57 GMT

Ideally you should find the exact error code that is causing the problem, shown in this thread. Is it the Central(nRF51 that is connect to PC) or peripheral(nRF51 connected to Atmega) that is resetting? Could you try with flow-control?

RE: software reset by blue tooth and serial communication crush.

Yoojin.Jang — Sat, 11 Mar 2017 15:53:21 GMT

Thank you for your support. I modified buffer size 512. But occur software reset.

RE: software reset by blue tooth and serial communication crush.

Sigurd — Fri, 10 Mar 2017 15:25:29 GMT

The first thing you can try is to increase the uart TX/RX FIFO buffers. Maybe try to double it from what you have now. The buffer size should be defined in main.c

#define UART_TX_BUF_SIZE                512  /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE                512  /**< UART RX buffer size. */

RE: software reset by blue tooth and serial communication crush.

Yoojin.Jang — Fri, 10 Mar 2017 09:47:25 GMT

I don't know the value of p_event->data.error_communication. I using nrf51_SDK_10.0.0 baudrate 115200. I no use RTS and CTS (I no use flow-control). need a flow-control? thank you.

RE: software reset by blue tooth and serial communication crush.

Sigurd — Fri, 10 Mar 2017 09:01:47 GMT

Are you able to debug and find the value of p_event->data.error_communication? It could indeed be an overrun error. What SDK are you using? What baudrate on the UART are you using ? Are you using uart flow-control? Is it the Central or peripheral that is resetting?

RE: software reset by blue tooth and serial communication crush.

Yoojin.Jang — Fri, 10 Mar 2017 01:02:42 GMT

Hi. thank you for your support. confirm result, occur APP_UART_COMMUNICATION_ERROR but I was disable comment //APP_ERROR_HANDLER in APP_UART_COMMUNICATION_ERROR Then, all stop. Let me know how APP_UART_COMMUNICATION_ERROR does not happen. thank you. have a nice day

RE: software reset by blue tooth and serial communication crush.

Sigurd — Thu, 09 Mar 2017 11:35:41 GMT

Hi,

A software reset during operation is often a result of the code running into an error, and that the corresponding error-code is passed into the error-handler APP_ERROR_CHECK(error_code). The default behavior of the error-handler is to reset the chip. Take a look at this thread on how to debug and find the error-code that is causing the reset.