Hi, I've been struggling with this for a few days now, and are initially looking for anyone that recognizes any of this, or maybe have some insights to what may be going on.
I'm working on a project based on a custom hardware fitted with a AT91R40008, at 40Mhz. The application is debugged using GDB connected with a JTAG dongle to the board, and this works fine. However, when the application is running from flash using a ROM configuration, I have issues on /dev/ser1. I have a console running on /dev/termios0 (connected to /dev/ser0), and this runs fine in both RAM and ROM. The issues on ser1 is that after I send a request (two bytes) the reply is not always received correctly (or at all, not sure which yet). However, whenever I enable some diagnostic printouts around the calls to cyg_io_write/cyg_io/read, it works ok, so as soon as I affect the timing of the send/read calls, it works. The reply is always consistent and correct on the wire (confirmed with oscilloscope). I have setup ser1 to operate in a non-blocking mode (and no termios on this channel). I'll dig in deeper trying to solve this, just wanted to throw this out here in case someone recognizes any of this.. ;) Oh, and running a eCos version from cvs, 2012-05-27. //Andreas -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
