stm32l151zDT6 not supported. Check protection error

[wolsty7]

running on stm32l151zDT6:
sudo python3 pystlink.py -d

returns:
Connected to ST-Link/ V2, serial 38ff6a064d43323542092243
USB > f1 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 28 80 83 04 48 37
USB > f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 01 00
USB > f7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 97 06 00 00 00 08 00 00
USB > f2 43 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 80 00
USB > f2 30 a3 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 80 00
USB > f2 22 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 77 14 a0 2b
DEVICE: ST-Link/V2 V2J34S0
SUPPLY: 2.91V
COREID: 2ba01477
Stm32.core_halt()
Halted after 0 transactions
USB > f2 36 00 ed 00 e0 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 30 c2 2f 41
CPUID: 412fc230
CORE: CortexM3
USB > f2 36 00 20 04 e0 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 36 64 38 10
IDCODE: 10386436
USB > f2 36 cc 00 f8 1f 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 00 00 00 00
*** Connected CPU with DEV_ID: 0x436 and FLASH size: 0KB is not supported. Check Protection ***
USB > f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 02 00
USB > f2 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00
DONE in 0.14s

I get similar results with the stlink v3

[wolsty7]

on the stm32L100RCT6 running sudo python3 pystlink.py -d
Connected to ST-Link/ V2, serial 38ff6a064d43323542092243
USB > f1 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 28 80 83 04 48 37
USB > f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 00 01
USB > f3 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB > f7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 96 06 00 00 f5 07 00 00
USB > f2 43 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 80 00
USB > f2 30 a3 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 80 00
USB > f2 22 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 77 14 a0 2b
DEVICE: ST-Link/V2 V2J34S0
SUPPLY: 2.90V
COREID: 2ba01477
Stm32.core_halt()
Halted after 256 transactions
USB > f2 36 00 ed 00 e0 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 30 c2 2f 41
CPUID: 412fc230
CORE: CortexM3
USB > f2 36 00 20 04 e0 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 27 64 f8 10
IDCODE: 10f86427
USB > f2 36 cc 00 f8 1f 00 00 00 00 00 00 00 00 00 00
USB < 80 00 00 00 00 01 00 00
MCU: STM32L100xC
FLASH: 256KB
SRAM: 16KB
EEPROM: 4KB
Stm32.core_nodebug()
USB > f2 35 f0 ed 00 e0 00 00 5f a0 00 00 00 00 00 00
USB < 80 00
USB > f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 02 00
USB > f2 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB > f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
USB < 01 00
DONE in 0.35s

which look like it is working

[wolsty7]

as a workaround I was able to get it to flash my device by setting the _flash_size to 384 if it was 0 after trying to get the size in find_mcus_by_flash_size()

so it seems it is having an issue detecting the flash size

[pavelrevak]

Yes, this is bug, or nonstandard by ST, I see this, in datasheet in section 31.1.1 Flash size register is exception for devices with your dev_id 0x436, where can be 0 for 384KB or 1 for 256KB of FLASH. other devices have on this address size of FLASH in KB

[pavelrevak]

this need an workaround for this dev_id
as dirty fixup, you can try to add this exception here:
https://github.com/pavelrevak/pystlink/blob/master/pystlink.py#L121
I will make fixup later

[wolsty7]

Cheers mate, this project is awesome, I was seaching for a stlink programmer that would run on a 32bit raspberry pi for ages and nothing worked apart from this.