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paolog
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Last seen: 7 months 4 weeks ago
Joined: 2020-11-06 09:30
DA14531 bricked after programming

Hi!

I started programming the DA14531 using the USB Development Kit. I'm working on the SDK examples and using the standalone flash programmer. All good, until I possibly did something wrong in the modifications, and I'm currently unable to access the DK. The JTAG is recognized when the USB DK is connected, but the DA14531 is not replying (tried with Keil 5). I also tried the 1-wire boot, but the reply is "wrong CRC" after pressing the reset button. Is there a way to recover that board?

Any idea about the reason why the DA14531 is not replying? Maybe the firmware is in a dead loop?

Thank you,

Paolo

Device: 
paolog
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Last seen: 7 months 4 weeks ago
Joined: 2020-11-06 09:30
Nevermind... I managed to

Nevermind... I managed to recover it this way:

- Connected with SmartSnippets by 1-wire UART, port P0_5

- Loaded in SysRAM a working example

- With the example running I flashed the same example using 1-wire UART

After that JTAG/SWD communication was restored.

Going on playing with the kit!

PM_Dialog
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Last seen: 3 days 22 hours ago
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Joined: 2018-02-08 11:03
Hi paolog,

Hi paolog,

Thanks for your interest in our DA14531 BLE solution and glad that you are able to download FW into the System-RAM via 1-wire UART.

If you need to download FW via JTAG and start debugging our SDK Example, please make sure that the DIP Switches are place to the proper position. See Figure 6 from the UM-B-125 User Manual DA14531 USB Development Kit Hardware document.

Thanks, PM_Dialog

paolog
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Last seen: 7 months 4 weeks ago
Joined: 2020-11-06 09:30
Found it, thank you!

Found it, thank you!