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I want to write DAP Link on clean atsum3u2c.

Topic last updated 05 Dec 2017, by Hiroaki Okoshi. 1 reply
Hiroaki Okoshi
22 Nov 2017

I cleaned the debugger MCU on the development board. (Troublesome wiring up) by debug probe.

The board is EVK-NINA-B1. I want to write DAP-LINK from the boot loader, but I do not know the procedure.

https://os.mbed.com/blog/entry/DAPLink-bootloader-update/

I want to know the method of "Bootloader update requires an external debug probe."

I wrote the following in SEGGER 's Flash lite, but the reaction of USB was not alike.

0244_sam3u2c_bl_0x5000.bin 0244_sam3u2c_bl_0x8000.bin 0244_sam3u2c_bootloader_update_0x5000.bin 0244_sam3u2c_bootloader_update_0x8000.bin

B/R H.Okoshi

Hiroaki Okoshi
05 Dec 2017

Succeeded

I tried again. I noticed that I did not cancel RESET.

  1. Flash:0244_sam3u2c_bl_0x5000.bin (According to "jFlash Lite & anoter EVK-NINA-B1 & Solder ling )
  2. Reset + Bulg off/on
  3. "MAINTENANCE"mode OK!
  4. Flash:0244_sam3u2c_bootloader_update_0x5000.bin (drag and drop)
  5. Reboot & "MAINTENACE" mode OK!
  6. .Flash:0244_sam3u2c_ublox_evk_nina_b1_0x5000.bin (drag and drop)

/media/uploads/Okoshi/daplink.png

OK DUPLINK start!? (Immediately after writing, there was no response, but ...)

B/R H.Okoshi