[sdiy] STM32 processor

[Eric Brombaugh]

On 10/16/2011 01:32 PM, Mikko Helin wrote:
> Hi,
>
> Don't know which are the existing stlink-download tool you use but the
> one I spotted used this USB VID and PID from some random
> stlink-access-test.c file found from internet:
>
> // st-link vendor cmd's
> #define USB_ST_VID			0x0483
> #define USB_STLINK_PID			0x3744
>
>
> However, after installing the Atollic TRUEStudio in Windoze (XP) and
> checking the connected USB device "STMicroelectronic STLink dongle"
> properties I found the next Device Instance ID with VID and PID for
> the SMT32F4DISCOVERY board:
>
> USB\VID_0483&PID_3748\5&340A0F05&0&1
>
> So if you have the C code available for recompilation in Ubuntu try
> changing the PID to 0x3748. Can't guarantee it will work, though I
> suspect the protocol has been changed (guess ST-LINK has some versions
> but guess it's backwards compatible anyway).
>
> Does the existing Linux toolchain  support the use of Eclipse? I would
> be quite lost without it (guess other Java coders as well).

The protocol appears to have changed significantly. The old version 
identifies itself as a USB Storage class device and accepts commands via 
a pseudo SCSI interface. The new protocol no longer appears as a storage 
device, so the Linux kernel doesn't know what to do with it and the 
corresponding device isn't created in /dev.

There appear to be several Linux stlink apps out there however. One is here:

http://code.google.com/p/arm-utilities/wiki/STLinkDownload

which is the one I have been using and appears to only support the V1 
protocol. Gordon Pearce mentioned another one:

https://github.com/texane/stlink

which may support both - I'm checking it out now.

It's possible to set up Eclipse + ARM GCC under Linux - many folks do 
this. Not being a Java coder it's not the development environment that I 
prefer though, so I haven't pursued it.

Eric