Am 22.07.2011 15:10, schrieb Tomek CEDRO:
On Fri, Jul 22, 2011 at 9:59 AM, Peter Horn<[email protected]> wrote:
Besides the RLink I also have an Olimex ARM-USB-OCD adpater. On Windows,
stepping with the Olimex is considerably faster than with the RLink. On
Linux both adapters are on par. I'm Using the same STM32 board and
OCD-Version in all cases, so the cause for the slow stepping must be related
to the RLink driver.
...and the OS-specific USB stack or RLink architecture itself. If you
chceck the timings on OpenOCD (windows/linux) and RIDE (windows) then
comparison should reviel the driver and the os-usb-stack quality, but
if the timings are similar that could be matter of device/firmware
design. It would be nice to see such comparison :-)
Hi Tomek
Without taking exact measurements, my impression is that the RLink
performs about the same with RIDE on Windows and OpenOCD on Linux. FWIW
RLink uses the Jungo driver on Windows. Sadly I don't have such a cool
USB protocol analyzer like you to take measurements.
Also the SWD part of the protocol still waits to be solved [1] :-)
SWD would be really nice to have.
Peter
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