mks_robin_nano Namespace Reference

Functions
def	encrypt (source, target, env)

Variables
	LDSCRIPT_PATH

Function Documentation

encrypt()

def mks_robin_nano.encrypt	(		source,
			target,
			env
	)

def encrypt(source, target, env):
    import os
    import sys
 
    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
 
    firmware = open(target[0].path, "rb")
    robin = open(target[0].dir.path +'/Robin_nano.bin', "wb")
    length = os.path.getsize(target[0].path)
    position = 0
    try:
        while position < length:
            byte = firmware.read(1)
            if position >= 320 and position < 31040:
                byte = chr(ord(byte) ^ key[position & 31])
                if sys.version_info[0] > 2:
                    byte = bytes(byte, 'latin1')
            robin.write(byte)
            position += 1
    finally:
        firmware.close()
        robin.close()
env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);

Variable Documentation

LDSCRIPT_PATH

mks_robin_nano.LDSCRIPT_PATH