RE: How to flash hex file using dfu in nrf Tool box application

Keton — Wed, 14 Sep 2016 16:40:05 GMT

just skip flashing a softdevice then. Bootloader example hex file has merged softdevice.

RE: How to flash hex file using dfu in nrf Tool box application

saiteja — Wed, 14 Sep 2016 16:18:37 GMT

hi, keton unable to flash bootloader after flashing s130v2. it is showing bootloader data in soft device region which bootloader version i need to flash.

RE: How to flash hex file using dfu in nrf Tool box application

Roger Clark — Fri, 09 Sep 2016 03:12:33 GMT

Be aware that some of the modules like the one in that picture have nRD51822QFAA devices on them, which are 16k.

The pca10028 board has a 32k device, you many find the dfu_dual_bank_ble_s130 bootloader does not work as it attempts to use more RAM than your device has available

RE: How to flash hex file using dfu in nrf Tool box application

Keton — Thu, 08 Sep 2016 18:48:51 GMT

In order for DFU to work you have to flash bootloader and softdevice onto your board. Also as you are using custom board it's important that you define buttons and leds as by default bootloader is triggered by holding button4 and reseting the board. For a quick debug you may try to connect buttons and leds to the same pins as in Nordic nRF51-DK so no code changes will be necessary. Assuming that you are using SDK11 you should:

do a full chip erase in nrfGo Studio or using nrfjprog -e
flash S130v2 hex file
flash bootloader hex file examples\dfu\bootloader\hex\dfu_dual_bank_ble_s130_pca10028
after board reset equivalents of LEDs 1 and 3 should be on. Board is stuck in bootloader mode because there's no application flashed. There should be bootloader peripheral device 'DfuTarg' on you BLE scanner
using nRFConnect app for android flash examples\dfu\ble_dfu_send_hex\test_images_update_nrf51\dfu_test_app_hrm_s130_w_dfu.zip:

connect to 'DfuTarg' device there
should be DFU button next to
disconnect button, press it select update .zip file and press start
there should be graph showing update progress

after operation completes there should be Nordic_HRM peripheral
if you connect to it there should be a DFU service and DFU button should be active so you can try to flash something else.

For a first time approach I strongly recommend connecting button to DK button 4 pin and all 4 LEDs. Also try SDK11 as it's more automated than in case of 12. After you make it work you may try to switch to SDK12 where there's no automated way of entering bootloader from app so far and you need to have custom bootloader build with you crypto keys.