nrf_drv_uart_tx 0x11 error

Question

Hello, 
 
 I am developing nRF52832 with SDK 16.0.0, ESB prx example. 
 ESB prx receive BLE and send it to UART. 
 UART is configured to 1000000 baud, which is maximum rate. 
 During operation, ESB prx is stopped suddenly. 
 Because nrf_drv_uart_tx returns 0x11. Then app_error_fault_handler was called, and SW stopped at NRF_BREAKPOINT_COND. 
 Is there a way to reset nRF52832 when error occurs?

user15146 · Accepted Answer

Hi, 
 This is how the function where NRF_BREAKPOINT_COND is looks like: 
 __WEAK void app_error_fault_handler(uint32_t id, uint32_t pc, uint32_t info)
{
 __disable_irq();
 NRF_LOG_FINAL_FLUSH();

#ifndef DEBUG
 NRF_LOG_ERROR("Fatal error");
#else
 switch (id)
 {
#if defined(SOFTDEVICE_PRESENT) && SOFTDEVICE_PRESENT
 case NRF_FAULT_ID_SD_ASSERT:
 NRF_LOG_ERROR("SOFTDEVICE: ASSERTION FAILED");
 break;
 case NRF_FAULT_ID_APP_MEMACC:
 NRF_LOG_ERROR("SOFTDEVICE: INVALID MEMORY ACCESS");
 break;
#endif
 case NRF_FAULT_ID_SDK_ASSERT:
 {
 assert_info_t * p_info = (assert_info_t *)info;
 NRF_LOG_ERROR("ASSERTION FAILED at %s:%u",
 p_info->p_file_name,
 p_info->line_num);
 break;
 }
 case NRF_FAULT_ID_SDK_ERROR:
 {
 error_info_t * p_info = (error_info_t *)info;
 NRF_LOG_ERROR("ERROR %u [%s] at %s:%u
PC at: 0x%08x",
 p_info->err_code,
 nrf_strerror_get(p_info->err_code),
 p_info->p_file_name,
 p_info->line_num,
 pc);
 NRF_LOG_ERROR("End of error report");
 break;
 }
 default:
 NRF_LOG_ERROR("UNKNOWN FAULT at 0x%08X", pc);
 break;
 }
#endif

 NRF_BREAKPOINT_COND;
 // On assert, the system can only recover with a reset.

#ifndef DEBUG
 NRF_LOG_WARNING("System reset");
 NVIC_SystemReset();
#else
 app_error_save_and_stop(id, pc, info);
#endif // DEBUG
} 
 NRF_BREAKPOINT_COND only generates a breakpoint if the debugger is connected. 
 And if you don't have DEBUG defined, then the default behavior is to reset.

nrf_drv_uart_tx 0x11 error

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