DFU using UART

[roger.k]

Hi. PCA10028, SDK10.0.0, S130. I'm testing DFU using UART not BLE.

1. How can i edit UART Tx,Rx pin number?

2. When I download "dfu_dual_bank_ble_s130_pca10028.hex" using nRFgo Studio, LED1,3 is always ON, whether I push button4 or not during power on. I think LED3 ON means that it starts DFU. So if i don't push button4 during power on, LED3 never on. Can you explain this mode? I need your help.

[Stefan Birnir Sverrisson]

Hi Roger

1. I suspect you configure the UART pin assignment of the HCI bootloader in the \nRF51_SDK_10.0.0_dc26b5e\examples\dfu\bootloader\config\dfu_single_bank_serial_s130_pca10028\hci_transport_config.h file.

2. LED 3 on means that the device is in bootloader mode. LED 1 on means that the device is advertising. Button 4 will not do anything when application is not uploaded to the device. Once an application has been uploaded to the device, it will start the application when you reset the board, unless you press and hold button 4 while you reset, then the device will start up in bootloader mode.

[roger.k]

Thanks. Let me just try.