Flash signature is not the same unit to unit

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by lenguyen on Mon May 19 14:17:28 MST 2014
Hi All,

I am working on to put flash signature in our software version for version control. We are having two development system (PCs). The software is shared between this two work station and is downloaded into two different MCU boards.  However the flash signature does not the same in these boards.
Here's our code:

uint8_t i;

/*<! Clear any previous "done flag" */

/*<! Start the signature generator for all flash memory */
Chip_FMC_ComputeSignatureBlocks(START_FLASH_ADDR, (FLASH_SIZE / 16));

/*<! Check for signature generation to be completed */
while (Chip_FMC_IsSignatureBusy()) {}

/*<! Clear busy flag */

/* Get all 128 bits of signature */
for (i = 0; i < SOFTWARE_SIGNATURE_BITS/32; i++) {
verChecksum = Chip_FMC_GetSignature(i);

Any thought ?