You can write a piece of code or a script to do it . GerladGerald
On Tue, May 12, 2015 at 2:19 AM, Mickae1 <[email protected]> wrote: > Gerald, do you know a faster way to write on the eeprom than that : > > U-Boot# i2c mw 0x50 00.2 0xaa 0x1 > U-Boot# i2c mw 0x50 01.2 0x55 0x1 > U-Boot# i2c mw 0x50 02.2 0x33 0x1 > > the last argument is the length to write, but how can I pass a string ? or > an array of bytes ? > > Le vendredi 6 septembre 2013 18:16:49 UTC+2, Gerald a écrit : >> >> Yes, we use Uboot to write to the EEPROM on the board. However, you need >> to use the expanded address format in your command. >> >> >> i2c md 50 00.2 200 >> >> >> Gerald >> >> >> On Fri, Sep 6, 2013 at 11:07 AM, Víctor MV <[email protected]> wrote: >> >>> I'm trying to write the "BeagleBone clone" EEPROM using u-boot through >>> instructions such as: >>> *U-Boot# i2c mw 0x50 0 0x10 0x11* >>> (while TP2 is grounded) >>> >>> however it doesn't seem to change anything: >>> *U-Boot# i2c md 0x50 0 0x10* >>> *0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>> ................* >>> >>> I also checked the values of the EEPROM of my original BB and the >>> behaviour most of the time is: >>> *U-Boot# i2c md 0x50 0 0x10* >>> *0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>> ................* >>> After pressing *CTRL+C*, i manage to read the first line but just the >>> first one: >>> >>> *U-Boot# <INTERRUPT>* >>> *U-Boot# i2c md 0x50 0 0x10 >>> * >>> *0000: aa 55 33 ee 41 33 33 35 42 4f 4e 45 30 30 41 36 >>> .U3.A335BONE00A6 * >>> *U-Boot# >>> * >>> *0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>> ................ * >>> *U-Boot# >>> * >>> *0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>> ................ * >>> *U-Boot# >>> * >>> *0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>> ................ * >>> >>> I've seen that some other users went through this problem and were able >>> to write the EEPROM from the userspace but no chance for me to do it since >>> it doesn't even boot. As my understanding goes i see only one option: >>> modify u-boot to hardcode these values. >>> Any sugestions? >>> >>> Gerald, i believe you use u-boot to initialize EEPROM, right? >>> >>> Regards, >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Gerald [email protected] http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
