I have an small code just to blink user leds loaded at address 0x80000000. When I use the bootloader from StarterWare it works perfectly but when I try to load using JTAG in the same address, I get an error that I suppose it's something related with memory protection.
In the past I had the same problem using uBoot when I try to execute Linux in single step. The work around was enable ICACHE using an uBoot function and the kernel loaded with no problem. At this time I have no loader, just the JTAG interface and I have the same problem. Enabling ICACHE doesn't fix the problem and I still have no chance to execute at 0x80000000. I can succeed loading the program at 0x40300000 where the MMU has no access (I guess!). background polling: on > TAP: am335x.dap (enabled) > target state: halted > target halted in ARM state due to debug-request, current mode: Supervisor > cpsr: 0xa0000193 pc: 0x00026e1c > MMU: disabled, D-Cache: disabled, I-Cache: enabled > JTAG-DP STICKY ERROR > MEM_AP_CSW 0x2800062, MEM_AP_TAR 0x80000000 > Failed to write memory at 0x80000000 > JTAG-DP STICKY ERROR > MEM_AP_CSW 0x2800062, MEM_AP_TAR 0x800000b4 > Failed to write memory at 0x800000b4 > Anybody knows how should be the initial configuration to use the address 0x80000000-0xA0000000 ??? I am sure that there is something that I do not understand about memory/cache initialization. Ventura -- 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.
