Erase flash
Erase full flash (slow)
ngultra_flash_programmer.py -e -f <flash_nr>
ngultra_flash_programmer.py -e -f 2
Erase flash (256KB) sectors
ngultra_flash_programmer.py –fast_erase -f <flash_nr> –erase_size<sector_count>
ngultra_flash_programmer.py --fast_erase -f 2 --erase_size 3
Write data to flash to a specific address
Warning: address should be a multiple of 256 ngultra_flash_programmer.py -w <your_input_file> -f <flash_nr> -a <address>
dd if=/dev/urandom of=random.bin bs=256 count=1 ngultra_flash_programmer.py -w random.bin -f 2 -a 512
Dump data from flash from a specific address for a specific size
Warning: address should be a multiple of 256 Warning: size is expressed in count of block 256 bytes (ex: 1 to read 256 bytes) ngultra_flash_programmer.py -d <your_output_file> -f <flash_nr> -a <address> -s <size>
ngultra_flash_programmer.py -d dump.bin -f 2 -a 512 -s 1
You can check that the md5sum of the 2 files are the same.
Write a BL1 into flash
Warning: This will erase the first 256KB of the flash Warning: address is fixed to 0 Warning: file will be signed by the script, use the unsigned file Warning: This will perform a Power On Reset on the board ngultra_flash_programmer.py –bl1 <your_bl1> -f <flash_nr> -k <key>
ngultra_flash_programmer.py --bl1 flash_programmer.bin -k keytest.der -f 2
Using fast commands
Fast commands are special commands used to speed up tranfer between the flash and the PC. For this, it uses a special binary that will be loaded into the TCM_A of the CPU.
Write data to flash to a specific address using fast_write
Warning: address should be a multiple of 256 ngultra_flash_programmer.py –fast_write <your_input_file> -f <flash_nr> -a <address>
dd if=/dev/urandom of=random.bin bs=256 count=1 ngultra_flash_programmer.py --fast_write random.bin -f 2 -a 512
Tips: -q is a shortcut for fast_write
Dump data from flash from a specific address for a specific size using fast_read
Warning: address should be a multiple of 256 Warning: size is expressed in count of block 256 bytes (ex: 1 to read 256 bytes) ngultra_flash_programmer.py –fast_read <your_output_file> -f <flash_nr> -a <address> -s <size>
ngultra_flash_programmer.py --fast_read dump.bin -f 2 -a 512 -s 1
Tips: -r is a shortcut for fast_read