This simple tool can be used to program the internal flash of the following microcontrollers:
- Atmel SAME70/S70/V70/V71
- Atmel SAM4E8C/SAM4E8E
Communication with SAM-BA bootloader is only supported through USB.
Before using the tool, the MCU must be put in "Boot from ROM" mode, either by fully erasing it using the ERASE pin or by clearing GPVNM1 (see datasheet for more information). When the device is in this mode, it will be enumerated as:
03eb:6124 Atmel Corp. at91sam SAMBA bootloader
Usage: ./usamba <port> (read|write|verify|erase-all|gpnvm) [args]*
-
Read Flash:
./usamba <port> read <filename> <start-address> <size> -
Write Flash:
./usamba <port> write <filename> <start-address> -
Verify Flash:
./usamba <port> verify <filename> <start-address> -
Erase Flash:
./usamba <port> erase-all -
Get/Set/Clear GPNVM:
./usamba <port> gpnvm (get|set|clear) <gpnvm_number> -
Restart MCU
./usamba <port> restart-mcu
for all commands:
<port> is the USB device node for the SAM-BA bootloader, for
example /dev/ttyACM0.
<start-address> and <size> can be specified in decimal, hexadecimal (if
prefixed by 0x) or octal (if prefixed by 0).
This version now also supports both Linux and Windows
