On Sun, Oct 9, 2011 at 12:37 PM, Simon Barner <bar...@gmx.de> wrote:
> Dear list,
>
> I have already posted the attached script some weeks ago.
>
> It enables the PLL of the STM32F107 and thus configures
> the MCU to run at 72 MHz which allows for higher JTAG speeds.
>
> Since this should be useful for everybody, I would like to
> contribute it to OpenOCD. However, I am not sure how to integrate
> it. One idea is to conditionally call it from scripts/target
> /stm32f1x.cfg. Comments and alternative suggestions are highly
> appreciated.
>
First of all, it's better to run off of the HSI instead. Not everyone has a
crystal attached, or it could be another frequency.
For example, I have this in my config files (for STM32F103, I don't know
what differs):
$_TARGETNAME configure -event reset-init {
mww 0x40022000 0x32
mww 0x40021004 0x3c0400
mww 0x40021000 0x01000883
sleep 10
mww 0x40021004 0x3c0402
sleep 10
adapter_khz 3000
}
As Michael said, it's probably best to put in in a tcl procedure that the
user can choose to call from the reset-init hook. Don't put the adapter_khz
in that procedure. If the settings are the same for all devices in the
family, the procedure probably belongs in target/stm32f1x.cfg.
/Andreas
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