I’ve already reinstalled all , win xp included , but it still doesn’t work.
I own a segger j-link so i’ve tried the program in the rar archive on the OLIMEX web site and the board passes all the tests , so I think that the hw is ok.
I’ve also made a continuity check test and the usb connector seems ok.
Playing with u-boot i’ve issued the command “eraseall 0x00000000 0xffffffff” so I think that i’ve erased some configuration bit or the internal boot rom of the arm processor and I guess this prevent it to function correctly.
One thing you can try is to look for a resistor that connects between the 9260 NANDCS pin and the Nand Flash pin 9(CE*). If you replace this resistor with a jumper, and leave the jumper open, then the 9260 will not be able to talk to the NAND Flash and you should be able to connect in SAM-BA mode. Then you can close the jumper and reload the NAND Flash. Don’t forget to use the script file to load the bootbin file, since the file needs to be modified before it gets loaded.
Hi , i have a REV. A board but I can’t locate the r10 - 0 ohm resistor as stated on the schematic hosted on the OLIMEX’s web site.
There’s instead a tht jumper (it’s a little strange because it’s installed on the rev. B boards) , so I’ve opened the jumper but it still doesn’t boot and SAM-BA doesn’t recognizes the board on the usb port.
I have put the board’s jumper in this configuration:
BMS_LOW open
PDE/PHY_PDCTRL open
TXD1/DTXD on dtxd
RXD1/DRXD on drxd
INTRC/EXTCLK on extclk
BAT/EXT on ext
DF_E open
NANDF_E open
then I’ve powered the board and I’ve opened HYPERTERMINAL (or cutecom on LINUX) applied power and I’ve sent a string on the serial port (115200bps,8,1,N) and plugged the usb port and the board responded to win.
Then I’ve closed the NANDF_E jumper and I’ve launched the board restoration procedure .