Posted on September 06, 2017 at 13:53Hello
I am using STM32F765VGT and have the flash in dual bank configuration.
I have an application in bank1 erasing bank2. Most of the times, but not always, the processor stalls during erase of bank 2. I dont do any accesses to bank2 during the erase but the processor stalls anyway.
What i have found is that when i disable ITCM-RAM (SCB->ITCMCR = 0) the processor dont stall when i erase bank2, but why?
I am not using the ITCM-RAM. And the ITCM-RAM seem to be enabled by STM32F765 at reset.
When reading the register SCB->ITCMCR after reset the data is 0x00000073. According to PM0253 the ITCM size is then 8MB. I expect 16kB?
But my main question is: what causes the bank2 erase to stall the MCU? (And why dosent it stall when ITCM-RAM is disabled?)
Best regards
/Stefan
#stall #stm32f7 #dual-bank-mode #flash-erase
