STM32L072CZ: Load HEX file

[vicatcu]

• Programmer/board type: Stlink/v2 Clone (specifically this one)
• Programmer firmware version: V2.J34.S7 as reported by Windows STM32 ST-LINK Utility software
• Operating system: Linux (specifically Ubuntu 18.04)
• Stlink tools version and/or git commit hash: e.g master (3690de9)
• Stlink commandline tool name: st-flash
• Target chip (and optional board): STM32L072CZ

I am looking to simply load a HEX file onto the target using this programmer. When I run the following command: st-flash --format ihex write myapp.hex

I get the following error trace / output:

st-flash 1.5.1-50-g3690de9
2020-01-13T16:19:45 INFO usb.c: -- exit_dfu_mode
2020-01-13T16:19:45 INFO common.c: Loading device parameters....
2020-01-13T16:19:45 WARN common.c: Invalid flash type, please check device declaration
  core status: unknown
Unknown memory region

And if I run st-info --chipid I just get: 0x0000.

...and st-info --probe outputs the following when the programmer is plugged into USB:

Found 1 stlink programmers
 serial: 2c0f03013212354d434b4e00
openocd: "\x2c\x0f\x03\x01\x32\x12\x35\x4d\x43\x4b\x4e\x00"
  flash: 0 (pagesize: 0)
   sram: 0
 chipid: 0x0000
  descr: unknown device

I'm not sure what, if anything, I might be doing wrong. I built the repository from source and I can obviously run the resultant binaries without a problem. Please can someone help set on the right course? If there is an easier path than using the tools in this repository, I'm also open to hearing that.

[Nightwalker-87]

@wolsty7 Would you fancy to give this a test as well? Please let us know.

[Ant-ON]

@Nightwalker-87 Most likely using --connect-under-reset will solve this issue

[wolsty7]

my programmer is the V3SET that isn't supported by 1.5.1 and i'm on raspbian... --connect-under-reset helps in my case

using branch l0_soft_loader_fix 1.6.1-330-g679ab65 that works for #1138:

st-flash --format ihex write /home/pi/Downloads/v1.hex
st-flash 1.6.1-330-g679ab65
Failed to enter SWD mode
Failed to connect to target

using branch l0_soft_loader_fix 1.6.1-330-g679ab65 that works for #1138:

st-flash --format=ihex write /home/pi/Downloads/v1.hex
st-flash 1.6.1-330-g679ab65
Failed to enter SWD mode
Failed to connect to target

using branch l0_soft_loader_fix 1.6.1-330-g679ab65 that works for #1138:

st-flash --connect-under-reset --format=ihex write /home/pi/Downloads/v1.hex
st-flash 1.6.1-330-g679ab65
2021-07-21T11:28:03 INFO common.c: L0xx Category 5: 20 KiB SRAM, 192 KiB flash in at least 128 byte pages.
2021-07-21T11:28:03 INFO common.c: Attempting to write 78900 (0x13434) bytes to stm32 address: 134217728 (0x8000000)
2021-07-21T11:28:03 INFO common.c: Flash page at addr: 0x08000000 erased
2021-07-21T11:28:03 INFO common.c: Flash page at addr: 0x08000080 erased
###removed for brevity###
2021-07-21T11:28:08 INFO common.c: Flash page at addr: 0x08013300 erased
2021-07-21T11:28:08 INFO common.c: Flash page at addr: 0x08013380 erased
2021-07-21T11:28:08 INFO common.c: Flash page at addr: 0x08013400 erased
2021-07-21T11:28:08 INFO common.c: Finished erasing 617 pages of 128 (0x80) bytes
2021-07-21T11:28:08 INFO common.c: Starting Flash write for L0
2021-07-21T11:28:08 INFO flash_loader.c: Successfully loaded flash loader in sram
2021-07-21T11:28:08 INFO flash_loader.c: Clear DFSR
2021-07-21T11:28:08 ERROR flash_loader.c: write_buffer_to_sram() == -1
2021-07-21T11:28:08 WARN common.c: Failed to use flash loader, fallback to soft write
1232/1232 halfpages written
2021-07-21T11:28:14 INFO common.c: Starting verification of write complete
2021-07-21T11:28:15 INFO common.c: Flash written and verified! jolly good!

using branch master 1.7.0:

st-flash --connect-under-reset --format=ihex write /home/pi/Downloads/v1.hex
st-flash 1.7.0
2021-07-21T11:50:56 INFO usb.c: Unable to match requested speed 1800 kHz, using 1000 kHz
2021-07-21T11:50:56 WARN common.c: NRST is not connected
2021-07-21T11:50:56 ERROR common.c: Soft reset failed: timeout
2021-07-21T11:50:56 ERROR common.c: Can not connect to target. Please use 'connect under reset' and try again
Failed to connect to target

So it appears to work correctly using the l0_soft_loader_fix branch

[Nightwalker-87]

This issue is now closed due to inactivity.
Please also note that any version prior to v1.7.0 is unsupported according to our #Security Policy.
Should the problem persist, please retry with the latest version in the develop branch.
If this is the case, one should then open a new ticket.