I’m using the beaglebone black using Debian Wheezy currently on the website.
I’m trying to allocate memory in ddr for PRU to write data to. Inside “/sys/class/uio/uio0/maps/map1/size” it report a hex of 0x40000 or 262144 bytes of data. I try changing the size using "modprobe uio_pruss extram_pool_sz= " but nothing happens as in no error message and looked like it works. when I checked the size again the size stayed the same.
I have no idea what is wrong.