STM32 died after flash read.

[therealuzr]

I happens to buy a ts100 with broken firmware, after connecting it to pc it wasn't able to install driver, like the data lines was broken (they're not). So after some research i bought a St-link v2, because i thought that the bootloader was corrupted or something. I read the chip, saved what it showed me. and then i needed to flash the bootloader for ts100, which i not found, instead i flashed a ts80 bootloader and now stm32 from my iron is not responding in software (st-link utility). okay. fast forward to this very moment. I have a new ts100, i opened it, get the stm chip out, connected it to st-link, read the flash, it showed me 00x0 or something like that, then i tried to disable read protection, it read something (not only 00x0) and i unpluged stm to assembly my iron back, and it wont turn on, i disassembled to check the stm with stlink again and it's now not responding just as the previous chip. I do not understand what exactly i did wrong, any advices would be helpful. That was my 1st and 2nd time ever work with stm. So, try to not blame me much. thx

[discip]

@therealuzr
Try flashing this custom bootloader from @Ralim: https://github.com/Ralim/IronOS-dfu/releases/download/v0.3/TS100.zip using the St-link.
But I don't know if you will be able to flash a .hex or .dfu file using the ST-link.
As far as I know you need the original bootloader to do so.

If I got you right, you did not backup your bootloader right.
Maybe @Ralim has an idea.

[therealuzr]

@therealuzr Try flashing this custom bootloader from @Ralim: https://github.com/Ralim/IronOS-dfu/releases/download/v0.3/TS100.zip using the St-link. But I don't know if you will be able to flash a .hex or .dfu file using the ST-link. As far as I know you need the original bootloader to do so.

If I got you right, you did not backup your bootloader right. Maybe @Ralim has an idea.

yeah thx, that could help if i had it before, i believe. but now st link can't connect to the stm chip

[discip]

I recently had to deal with st-link and got the advice to bridge VSSA to NRST on the chip at boot in order to connect to it.

#1806 (reply in thread)

[therealuzr]

I recently had to deal with st-link and got the advice to bridge VSSA to NRST on the chip at boot in order to connect to it.

#1806 (reply in thread)

thx, i'll try to figure that out and try tomorrow