Lora-e5 mini board chip cannot be erased - locked

Isaac_Kargar · July 3, 2022, 6:55am

Hello,

I’m trying to follow the tutorial on lora-e5 mini board to connect it to TTN but I cannot load the program to the board.
I asked my question here:

github.com/Seeed-Studio/LoRaWan-E5-Node

Simple LED blink on lora-e5 mini

opened 08:33PM - 01 Jul 22 UTC

kargarisaac

Hello, I'm trying to use this repo to program a new lora-e5 mini board that I… got recently, but cannot program the board. So, I decided to just test a simple LED blink test. Again, I cannot do it and get the same error. This is the error I get: ```bash STMicroelectronics ST-LINK GDB server. Version 6.1.0 Copyright (c) 2022, STMicroelectronics. All rights reserved. Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : Enabled Waiting for debugger connection... Debugger connected Waiting for debugger connection... Failed to read registers from target Shutting down... Exit. ``` I create a new empty project and set portB pin5 on and off as follows: ```C while (1) { HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET); HAL_Delay(1000); HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET); HAL_Delay(1000); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ ``` Any idea? I also tried to use stm32cubeProgrammer but it didn't help: ```bash 22:33:11 : Memory Programming ... 22:33:11 : Opening and parsing file: loraE5Mini_blink.elf 22:33:11 : File : loraE5Mini_blink.elf 22:33:11 : Size : 6.20 KB 22:33:11 : Address : 0x08000000 22:33:11 : Erasing memory corresponding to segment 0: 22:33:11 : Erasing internal memory sectors [0 3] 22:33:11 : Download in Progress: 22:33:11 : Error: failed to download Segment[0] 22:33:11 : Error: failed to download the File 22:33:11 : RUNNING Program ... 22:33:11 : Address: : 0x08000000 22:33:11 : Warning: The core is locked up 22:33:11 : Start operation achieved successfully ```

I’m spending a lot of time to solve it an be able to start testing the board. Really appreciate if someone can help.