8 Jan
2011
8 Jan
'11
12:06 a.m.
Hi,
I'm trying to flash simtrace on an at91sam7s, using samba.
sam7utils compiles well under amd64, but does not work. It does not
output anything and quits.
the only indication on dmesg is :
usb 4-1: usbfs: interface 0 claimed by cdc_acm while 'sam7' sets config #1
Sam_I_Am works great on amd64, but the firmware format is not the same.
Does anyone knows how to convert main_simtrace.samba to a valid intel hex ?
Kevin
8 Jan
8 Jan
12:26 p.m.
Hi Kevin,
usb 4-1: usbfs: interface 0 claimed by cdc_acm while
'sam7' sets config
#1
sam7 can talk to the device either by using libusb, or by utilizing the
emulated
serial port of the Linux kernel.
You have compiled sam7 to use usb directly, so you have to rmmod usbserial
and/or cdc_acm,
because they will block your attempts to talk to the device via libusb.
This
is the error message you've seen in your kernel log.
(check io_libusb.c (usb) and io_posix.c (emulated serial port) in the
sam7utils source code,
it unfortunately provides very little feedback if things don't work out
well)
Chris
3:02 p.m.
Hi,
Thanks. it works well.
on ubuntu 10.04, 03eb:6124 is mapped to ttyACMx using cdc_acm
I compiled it the same way on x86 and amd64 (./configure
--prefix=/usr/local; make)
on x86, sam7 uses posix (sam7 -l /dev/ttyACM0)
on amd64, sam7 works with libusb directly
while connected, you have to remove ttyACM0 (rmmod cdc_acm), then it's
possible to use
sudo ./sam7 --exec set_clock --exec unlock_regions --exec "flash
../openpcd/firmware/main_simtrace.samba"
once all set up, i'll write on the wiki.
thanks,
kevin
On 08.01.2011 13:26, Christian Vogel wrote:
Hi Kevin,
usb 4-1: usbfs: interface 0 claimed by cdc_acm
while 'sam7' sets
config #1
sam7 can talk to the device either by using libusb, or by utilizing the
emulated
serial port of the Linux kernel.
You have compiled sam7 to use usb directly, so you have to rmmod
usbserial and/or cdc_acm,
because they will block your attempts to talk to the device via libusb.
This
is the error message you've seen in your kernel log.
(check io_libusb.c (usb) and io_posix.c (emulated serial port) in the
sam7utils source code,
it unfortunately provides very little feedback if things don't work out
well)
Chris
5325
days inactive
5325
days old
baseband-devel@lists.osmocom.org
2 comments
2 participants
participants (2)
-
Christian Vogel -
ml＠mail.tsaitgaist.info