verify/read firmware writed into rabbit

Hi, I want to know if exist some way to read or verify the version/checksum of the (.bin) program writed into the rabbit (RCM3720)???

for example: for PIC microcontroller we can use a universal programmer, select the device family and read, so we knows the checksum of the firmware writed in the chip.

I want to know how do this…


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This might provide a good starting point for code to accomplish your goal. I used it with an RCM2200 (and I believe RCM2260) back with Dynamic C 8.61.

The fs_checksum_x() function came from FS2.LIB. Note that it skips over the UserBlock which might be at the top of flash 1 (IIRC, the RCM2250/RCM2260 had two 256K flash chips).

This will only work on boards with parallel flash, where the entire flash space is mapped into physical memory. For Dynamic C 10.72, take a look at Samples/RemoteProgramUpdate/verify_firmware.c.

word getProgChecksum()
	#define CHECK_BLOCK_SIZE 2048U
	unsigned long checkaddr, bytestogo;
	unsigned int checklen;
	FSchecksum checksum;

	checksum = 0;
	bytestogo = ( ((unsigned long) << 12) +;
	checkaddr = 0;
	while (bytestogo) {
		checklen = (bytestogo > CHECK_BLOCK_SIZE ? CHECK_BLOCK_SIZE : (unsigned int) bytestogo);
		fs_checksum_x(&checksum, checkaddr, checklen);
		checkaddr += checklen;
		// skip over userblock
		if (checkaddr == (0x40000 - MAX_USERBLOCK_SIZE)) checkaddr += MAX_USERBLOCK_SIZE;
		bytestogo -= checklen;
	return checksum;


Working fine.