fail flash bootloader by ST-link

[chtsai]

Here My device (chip nrf51822_xxAA) exist softdevice 8.0.3 and BLE uart application work fine which flash by the ST-link in Keil MDK(5.20). Now I try to add bootloader to my device from the example project of "bootloader\pca10028\dual_bank_ble_s110", built without problem but flash has below message

No Algorithm found for: 10001014H - 10001017H Partial Erase Done (areas with no algorithms skipped!) No Algorithm found for: 10001014H - 10001017H Partial Programming Done (areas with no algorithms skipped!) Partial Verify OK (areas with no algorithms skipped!) Application running ... Flash Load finished at 00:08:43

The device run into application (Advertiseing LED blink) even I press button during power on (DFU mode) , It seems bootloader code did not execute. (I checked that address at 0x3C000 exsit code) Even I modified bootloader code force only in DFU mode but still jump to application.

Any suggestions to know what's happen in my process ?

1. Softdevice must exist in device before flash th bootloader. ( my device exist softdevice and application (BLE uart) ) .
2. bootloader flash process , nRF docs are all for jlink( use nrfjprog.exe) not for ST-link. ( same problem -jlink can not write directly to the User Information Configuration Registers(UICR) ?)

Could give the right method to flash bootloader image into nrF51822 device by ST-link.

Thanks in advance.

[bjorn-spockeli]

This blog post explains how to program nRF51s with ST-Link. I am unsure if the nRF51xxx External Connection programming algorithm allows you to program the UICR registers. If not, then you can use the debug out port(P19) on the nRF51 DK to program external nRF51s with the JLink OB programmer, see this post.

-Bjørn

[Vidar Berg]

Is there a command line tool for this programmer? In that case you should be able to set the bootloader's start address manually (write start address to 0x100010014). As you have seen, the flash algorithm in Keil does not support the UICR section, and thus skipping it despite it being a part of the built image.

Note that the bootloader will not be started by the MBR unless you have set this register => MBR reset behavior