About

JTAG Versaloon firmware for the STM32 Bluepill board.

Build

Just a matter of make -j in the root folder if you have an ARM GCC toolchain installed on your computer. If you have docker, you can just run ./build.sh, it will build the firmware for you.

The produced binaries are the following :

Versaloon-STM32F103C8_BluePill.hex
Versaloon-STM32F103C8_BluePill.bin
Versaloon-STM32F103C8_BluePill.elf

Download

You can download the released firmware here: https://github.com/zoobab/versaloon/releases/tag/v1.0

Flashing

You can use st-flash with an Stlinkv2 adapter:

st-flash write Versaloon-STM32F103C8_BluePill.bin 0x8000000

Or alternatively, use an USB-serial adaptor, using the same method as for the DirtyJTAG project with the stm32flash tool (see the section "Via a USB-serial adaptor" in https://github.com/jeanthom/DirtyJTAG/blob/master/docs/install-bluepill.md ):

$ stm32flash -w Versaloon-STM32F103C8_BluePill.bin -v -g 0x8000000 /dev/ttyUSB0
stm32flash 0.5

http://stm32flash.sourceforge.net/

Using Parser : Raw BINARY
Interface serial_posix: 57600 8E1
Version      : 0x22
Option 1     : 0x00
Option 2     : 0x00
Device ID    : 0x0410 (STM32F10xxx Medium-density)
- RAM        : 20KiB  (512b reserved by bootloader)
- Flash      : 128KiB (size first sector: 4x1024)
- Option RAM : 16b
- System RAM : 2KiB
Write to memory
Erasing memory
Wrote and verified address 0x0800d8ec (100.00%) Done.

Starting execution at address 0x08000000... done.

You can also do it via the docker container zoobab/stm32flash-docker, or use the flash.sh script:

$ export DEVICE="/dev/ttyUSB0"
$ export FILE="Versaloon-STM32F103C8_BluePill.bin"
$ docker run --privileged -v $DEVICE:$DEVICE -v $PWD:/mnt zoobab/stm32flash-docker -w /mnt/$FILE -v -g 0x8000000 $DEVICE
stm32flash 0.5

http://stm32flash.sourceforge.net/

Using Parser : Raw BINARY
Interface serial_posix: 57600 8E1
Version      : 0x22
Option 1     : 0x00
Option 2     : 0x00
Device ID    : 0x0410 (STM32F10xxx Medium-density)
- RAM        : 20KiB  (512b reserved by bootloader)
- Flash      : 128KiB (size first sector: 4x1024)
- Option RAM : 16b
- System RAM : 2KiB
Write to memory
Erasing memory
Wrote and verified address 0x0800d8ec (100.00%) Done.

Starting execution at address 0x08000000... done.

$

lsusb

ID 0483:a038 STMicroelectronics

/!\ This is not a Versaloon reserved VID/PID, disconnect any STM32 dev board from your computer before trying to use OpenOCD /!\

Pin map

BluePill pin mapping is the same as MiniRelease1.h

TDI => GPIO B15
TDO => GPIO B14
TCK => GPIO B13
TMS => GPIO B4

OpenOCD config file

Create somewhere a file called my_vsllink.cfg with this content :

interface vsllink
vsllink_usb_vid 0x0483
vsllink_usb_pid 0x5740
adapter_khz 100
transport select jtag

Then you can launch OpenOCD with openocd -f my_vsllink.cfg :

Open On-Chip Debugger 0.10.0
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
adapter speed: 100 kHz
jtag
Info : Versaloon(0x15)by Simon(compiled on Dec 20 2018)
Info : USB_TO_XXX abilities: 0x0000176E:0x010001EF:0xC0000007
Info : clock speed 100 kHz
Warn : There are no enabled taps.  AUTO PROBING MIGHT NOT WORK!!
Info : JTAG tap: auto0.tap tap/device found: 0x44002093 (mfg: 0x049 (Xilinx), part: 0x4002, ver: 0x4)
Warn : AUTO auto0.tap - use "jtag newtap auto0 tap -irlen 2 -expected-id 0x44002093"
Error: IR capture error at bit 2, saw 0x3FFFFFFFFFFFFFF5 not 0x...3
Warn : Bypassing JTAG setup events due to errors
Warn : gdb services need one or more targets defined

If you get the Error: Can't find USB JTAG Interface!Please check connection and permissions. error message, you may try to run OpenOCD as sudo.

Todo

Does not build under ubuntu 16.04: https://github.com/zoobab/versaloon/commit/83dfb9bb8b72a99d491f8e34930afa46ff94adde
Try it out on a discovery board: http://takenapart.com/?p=82
Try it out on a maple board
Try it out on a blackpill board
Add some wiring/fritzing documention with some MIPS targets
Make it work with urjtag, right now it trows an error for "jtag> cable vsllink error: Couldn't connect to suitable USB device. error: not found: no USB connections"

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zoobab / versaloon

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