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STM32L041 Erasing through Bootloader UART doesn't work

GVolo
Associate

‎2021-07-06 04:25 AM

I use STM32L041 and trying to erase it through Bootloader UART. I am working on the 115200 baud rate and all bootloader commands work perfectly except Erase. I am using the Extended Erase command trying to erase all the chip:

0x44+0xBB-WaitACK; 0xFF+0xFF+0x00-WaitACK.The first time I get ACK (as should be), but the second time I am always getting NAC. What am I doing wrong?

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TDK
Guru

‎2021-07-14 09:11 PM

Does the Get command say Extended Erase is supported? What is the full response from Get?

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