serial_uartes stablity

[peks]

HI

How stable is the serial_uartesexample in nRF5?  I'm running it on a PCA10056, the example works for about 5 seconds and then UART RX stops, i.e. nothing is received after that point.

Thank you.

Pete.

[peks]

Also, some more info.  Long story short this came about from me adding serial_uartes to the FreeRTOS blinky and running into these issues there.  I have a GPS unit on 9600 baud connected to the problem UART.  So I changed over to the standard serial_uartes example, changed the baud rate and pins to what I am using (and on the same hardware) and see the same issue.

So this is basically what I changed in the serial_uartes example:

#define U2RX_PIN_NUMBER  NRF_GPIO_PIN_MAP(0,14)
#define U2TX_PIN_NUMBER  NRF_GPIO_PIN_MAP(0,16)

#define URX_PIN_NUMBER  NRF_GPIO_PIN_MAP(0,11)
#define UTX_PIN_NUMBER  NRF_GPIO_PIN_MAP(0,13)

NRF_SERIAL_DRV_UART_CONFIG_DEF(m_uarte0_drv_config,
                      URX_PIN_NUMBER, UTX_PIN_NUMBER,
                      RTS_PIN_NUMBER, CTS_PIN_NUMBER,
                      NRF_UART_HWFC_DISABLED, NRF_UART_PARITY_EXCLUDED,
                      NRF_UART_BAUDRATE_9600,
                      UART_DEFAULT_CONFIG_IRQ_PRIORITY);

NRF_SERIAL_DRV_UART_CONFIG_DEF(m_uarte1_drv_config,
                      U2RX_PIN_NUMBER, U2TX_PIN_NUMBER,
                      RTS_PIN_NUMBER, CTS_PIN_NUMBER,
                      NRF_UART_HWFC_DISABLED, NRF_UART_PARITY_EXCLUDED,
                      NRF_UART_BAUDRATE_115200,
                      UART_DEFAULT_CONFIG_IRQ_PRIORITY);

Also interestingly  nrf_serial_write(&serial0_uarte, &c, sizeof(c), NULL, 0); seems to only work if single characters are received, i.e. when changing to something like this it never receives anything: 

char buffer[32];

size_t count_read;

nrf_serial_write(&serial0_uarte, buffer, sizeof(buffer), &count_read, 0);

So I have 2 issues:

1. After receiving a number of characters from the GPS (and echoing these on the TX of the same UART to a PC) receive stops completely and nothing more is received.

2.  nrf_serial_write can only receive one character at a time, anything more and it doesn't work at all.

Thank you...