Posted on March 27, 2013 at 03:35I guess it depends on why you need to disable it, or why you need it in the first place. Just be conscious as you pass control from the boot loader to the app that you don't want to be incrementing random locations in the other's address space.
You can disable the counter, and you can also just disable the interrupt generation :
SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
Every time what? I'm not sure you mean. Ideally when doing stuff with flash programming you don't want to be executing or reading anything for flash, which can include interrupts that will cause you to touch flash. You don't want to cause the CPU to stall as this can interfere with your ability to service peripherals (ie USART, watchdog) in a timely manner. It's not fatal with things like XMODEM because you can time you flash writing in the period the host is not sending data, but waiting for your acknowledgement. The timeout expectations on the host need to reflect the dwell time required to program the block.
