I have an issue where my beaglebone's heartbeat LED stop blinking and I am
unable to do anything with it after the bug has happened.
The issue happens within a couple of seconds when running at 720 MHz.
*Here is a trivial C program that triggers the bug every time it is run at
720 MHz: http://pastebin.ca/2314233*
Surprisingly, running the very same program at 600 MHz does not seem to
trigger the bug.
Another surprise is that changing "writeval" on line 55 for "writeval
0xFF" seems to prevent the bug from happening.
I am really puzzled by this issue.
Any help is appreciated!
I am powering the beaglebone with a power adapter.
I have reproduced the issue on all beaglebones I have tried it on (5).
The GPMC is configured to be available at address 0x1000000.
I dont know why you will be ok when @600MHz
but for my previous experience , for a resolved register read, you can NOT
use continuous 4k size map .
map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, (target
+ 0x1000000) ~MAP_MASK);
2013/12/17 upwardindex [ at ] gmail.com
I have done additional tests with the beaglebone connected to the other
The beaglebone dies 10 times out of 10 when not connected to the external
The beaglebone dies 0 times out of 10 when connected to the external board.