Error: failed to erase memory

Hugo_VOLA · ‎2023-01-18

I'm using LoRa E5 mini board that has STM32WLE5 MCU on it.

I use STM32CubeProgrammer and the STlink of a Nucleo64 board to send the firmware to it.

For some boards, I cannot succeed to flash them and get this error :

When I try to use STM32CubeIDE I've got this error :

I already checked that OB RDP is AA.

By following the article of ST (https://community.st.com/s/article/Custom-external-loader-failed-to-download-segment-0) I try to use the 2.6 version of STM32CubeProgrammer but without any success...

When I increase verbose level on STM32CubeProgrammer I've got those logs :

14:25:34:818 : Memory Programming ...

14:25:34:818 : Opening and parsing file: Seeed-LoRa-E5_VT7-71.bin

14:25:34:818 : File : Seeed-LoRa-E5_VT7-71.bin

14:25:34:818 : Size : 89324 Bytes

14:25:34:818 : Address : 0x08000000

14:25:34:818 : Erasing Segment <0> Address <0x08000000> Size <89324>Bytes

14:25:34:819 : Erasing memory corresponding to segment 0:

14:25:34:825 : Memory erase...

14:25:34:826 : halt ap 0

14:25:34:826 : w ap 0 reg 15 PC (0x20000000)

14:25:34:826 : w ap 0 reg 17 MSP (0x20000500)

14:25:34:826 : w ap 0 reg 16 xPSR (0x01000000)

14:25:34:829 : w ap 0 @0x20001380 0x00000200 bytes Data 0x00000000

14:25:34:829 : w ap 0 @0x20000000 0x00000004 bytes Data 0x0000BE00

14:25:34:843 : w ap 0 @0x20000004 0x00000F54 bytes Data 0x0001B510

14:25:34:843 : Erasing internal memory sectors [0 43]

14:25:34:843 : Init flashloader...

14:25:34:844 : halt ap 0

14:25:34:844 : w ap 0 reg 0 R0 0x00000001

14:25:34:844 : w ap 0 reg 1 R1 0x00000000

14:25:34:845 : w ap 0 reg 2 R2 0x00000000

14:25:34:845 : w ap 0 reg 3 R3 0x00000000

14:25:34:846 : w ap 0 reg 4 R4 0x00000000

14:25:34:846 : w ap 0 reg 5 R5 0x00000000

14:25:34:846 : w ap 0 reg 6 R6 0x00000000

14:25:34:847 : w ap 0 reg 7 R7 0x00000000

14:25:34:847 : w ap 0 reg 8 R8 0x00000000

14:25:34:856 : w ap 0 reg 9 R9 0x00000000

14:25:34:857 : w ap 0 reg 10 R10 0x00000000

14:25:34:857 : w ap 0 reg 11 R11 0x00000000

14:25:34:857 : w ap 0 reg 12 R12 0x00000000

14:25:34:857 : w ap 0 reg 13 SP 0x00000000

14:25:34:857 : w ap 0 reg 14 LR 0x20000001

14:25:34:857 : w ap 0 reg 15 PC 0x2000002F

14:25:34:857 : w ap 0 reg 16 xPSR 0x01000000

14:25:34:857 : w ap 0 reg 17 MSP 0x20001354

14:25:34:857 : w ap 0 reg 18 PSP 0x00000000

14:25:34:857 : run ap 0

14:25:34:907 : halt ap 0

14:25:34:907 : r ap 0 reg 0 R0 0x00000001

14:25:34:907 : Loader sector erase...

14:25:34:907 : Error: failed to erase memory

14:25:34:928 : Error: failed to erase memory

14:25:34:929 : RUNNING Program ...

14:25:34:929 : Address: : 0x08000000

14:25:34:929 : w ap 0 reg 15 PC 0x00000000

14:25:34:930 : w ap 0 reg 17 MSP 0x00000000

14:25:34:930 : w ap 0 reg 16 xPSR 0x01000000

14:25:34:930 : Application is running

14:25:34:930 : Start operation achieved successfully

14:26:15:995 : Disconnected from device.

Do you have any idea about what's happening ?

Thanks

Hugo

Imen.D · ‎2023-01-18

Hello @Community member ,

Check you cables, maybe you are using a bad quality.

Make sure to use the correct external loader for the board.

Maybe trying access memory without appropriate External Loader selected.

Imen

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

Hugo_VOLA · ‎2023-02-07

Hello @Imen DAHMEN ,

Thanks for your answer.

I 've check cables external loader, and programmer configuration all seems good.

I've also contact Seeedstudio that build the board with the STM32WL in it.

It appear that there is some problems with those boards... They can be stucked...

Some of the boards can't be reach by the stlink (le power voltage drop to 1.2V)

Some of the boards can't be flashed correctly :

We've brought 100pc I really hope we will find a solution...

videojames · ‎2023-02-07

You can try flashing the boards with Under Reset mode, I have had some luck with this with a similiar error message.

However it does sound like Seeed may be the more appropriate location for support.

Good luck.