Hi all. I know that OpenOCD contains support code for PIC 32. But TinCanTools say the following:
> Please note that since this JTAG adapter board is intended for use > with a MIPS CPU, OpenOCD cannot be used with this adapter board. > OpenOCD does not support MIPS processors. This is clearly not correct, because I can connect to my PIC32 USB Starter Board (Through the JTAG interface on the IO Expansion Board) Using their MIPS header and get some semblance of a sensible reply. Using a fresh OpenOCD checkout from head (as of an hour ago). The problem I get is, after I connect, the flyswatter flashes LED2 and LED3 alternately for a while and then crashes out. This is my first attempt at using OpenOCD on PIC32 so I don't know if another version works better with it or not. Anyway Here is the Message output: > Open On-Chip Debugger 0.3.0-in-development (2009-09-11-20:28) svn:2694 > $URL: svn://svn.berlios.de/openocd/trunk/src/openocd.c $ > For bug reports, read > http://svn.berlios.de/svnroot/repos/openocd/trunk/BUGS > jtag_nsrst_delay: 100 > jtag_ntrst_delay: 100 > Info : clock speed 6000 kHz > Info : JTAG tap: pic32mx.cpu tap/device found: 0x50978053 (mfg: 0x029, > part: 0x0978, ver: 0x5) > Info : device id = 0x50978053 (manuf 0x029 dev 0x78, ver 0x509) > Info : flash size = 512kbytes > flash 'pic32mx' found at 0xbd000000 > Info : device id = 0x50978053 (manuf 0x029 dev 0x78, ver 0x509) > Info : flash size = 12kbytes > flash 'pic32mx' found at 0xbfc00000 > Open On-Chip Debugger 0.3.0-in-development (2009-09-11-20:28) svn:2694 > TargetName Type Endian TapName State > -- ------------------ ---------- ------ ------------------ ------------ > 0* pic32mx.cpu mips_m4k little pic32mx.cpu running Sometimes it will stop here and flash the leds for ever, other times it flashes them for a while (many seconds) and then crashes and outputs: > Error: couldn't read the requested number of bytes from FT2232 device > (0 < 5) > Error: couldn't read from FT2232 > Error: register read failed > Error: couldn't read the requested number of bytes from FT2232 device > (0 < 5) > Error: couldn't read from FT2232 > Error: register read failed > Error: ftdi_read_data: usb bulk read failed > Error: couldn't read from FT2232 > Error: register read failed > Error: ftdi_write_data: usb bulk write failed Here is my target script: > # Change this to point to your particular interface > source [find interface/flyswatter.cfg] > > set CPUTAPID 0x50978053 > source [find target/pic32mx.cfg] > > init > flash probe 0 > flash probe 1 > version > targets pic32mx.cfg is stock, as checked out from SVN, with the small exception that I changed these lines in it to suppress a warning: > > flash bank pic32mx 0xbd000000 0 0 0 0 > flash bank pic32mx 0xbfc00000 0 0 0 0 changed to: > flash bank pic32mx 0xbd000000 0 0 0 $_TARGETNAME > flash bank pic32mx 0xbfc00000 0 0 0 $_TARGETNAME Any suggestions to get to the point where I can connect with Telnet or GDB would be greatly appreciated as I am a bit snookered at the moment. Editing those lines neither improved or made the situation I experience any worse. Thanks, Strontium _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
