I'm having issues with the IAP on the chip LPC1788. In actual testing, I have hundreds of devices and everyone has a LPC1788 MCU. in my bootloader program, Flash is programmed , and the compare
1. when i adjust the bin size of the app, some failed cases ever could be successful. when the size is between in a certain range, the failed cases become bricks inevitably.
2. Timer interrupt happens when iap operate. I know the program should disable all the interrupt , but why the majority of devices succeed, only several fail when I don't disable interrupt ?