UART(hardware) when using s110 on pca10028

[Matt]

I'm unable to get any output when writing to the UART while using the s110 softdevice. I'm refering to the hardware UART. I'm not using bluetooth for serial.

I'm using SDK 7.2. I tried the uart example(no softdevice) under examples\peripheral\uart, which works fine. I used the same code in the ble_app_bas(with s110) example and I get no output. I found that the ble_app_gls uses uart. It uses the uart (printf) in the ble stack event handler. If I call printf from an application timer handler or the main loop, it does not transmit.

Any ideas?

[Stefan Birnir Sverrisson]

Hi

Have you seen the UART example in the nRF51 SDK 7.2.0 under \Nordic\nRF51_SDK_7.2.0_cf547b5\examples\ble_peripheral\experimental_ble_app_uart which also uses the S110 softdevice.

[Matt]

Thanks Stefan,
I'm actually referring to the hardware uart. I've edited my original post to reflect this.

[Stefan Birnir Sverrisson]

Hi Matt

Actually, this example also sends and receives over the hardware UART. It receives messages from a central device and forwards that to the hardware UART (see nus_data_handler callback function) and receives data from the hardware UART (see UART0_IRQHandler) and forwards that to the softdevice in order to send it over BLE. Do you think that could help you to figure out how to do this?

[jithin m das]

Hi

You should select app_uart with FIFO from Run Time Environment of Keil.