2023-03-20 07:17 AM
According to the RM0451 Reference manual (Ultra-low-power STM32L 0x0 advanced Arm ® -based
32-bit MCUs),
I use the SWD protocol to access debugging:
1. Turn on the power and set the reset
2. I initialize SWD
3. I get access to
1) SW-DP has an internal ID code 0x0BC11477
2) 0x10086457 is read by DBG_ID CODE Address 0x40015800
So far, everything matches the description.
But when trying to accessDHCSR or DEMCR, the protocol for the stm32l011f4p6 processor is disrupted: a reading error is issued, after which access to DBG_IDCODE disappears. For the stm32f030f4p6 processor, it works fine.
How do I access these registers?