Embedded Questions -STM32

Sanjay Adhikari

5 years ago

This contains the Embedded Questions related to STM32-Nucleo L4R5ZI board discussed. It includes STM32 device memory map, clock configuration , booting mechanism and RTC. You may drop message in case any doubt.

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1. STM32 device can fetch instruction from :

Only Flash

Only SRAM

Flash or SRAM

Only from Bootloader

2. Device memory layout can be verified by :

Only Downloading code and then verify memory

By Linker

By Compiler

None of the above

3. Which of the following is True for STM32 ?

If you halt CPU execution, RTC will also stop

RTC is separate IP block and will continue to run even after CPU is halted

We can’t halt CPU when RTC is running

4. What happens if Boot configuration in STM32 is set to boot from Flash User/Application area but Flash is empty ?

CPU will throw exception

CPU will execute default bootloader from sytem memory

CPU will stuck at first instruction address

None of the above

5. APB in STM32 stands for :

Application Process Bus

Advanced Peripheral Bus

None of the above

6. One can create STM32 Nucleo-L4R5ZI device header file with the help of STM32L4R5ZI datasheet and STM32L4 family Reference manual :

True

False

7. STM32 bootloader can be enabled from :

True studio

STM32cube programmer

Already enabled by default

None of the above

8. Which of the following is True for STM32 bootloader using USB interface ?

If there is a separate USB port for boot loader , ST-Link can also take control of device using ST-Link USB interface

ST-Link interface will not work if Boot loader is programmed.

9. Boot configuration in STM32 is done by :

Hardware only

Hardware and/or option bytes programming

Factory programmed

None of the above

10. Which of the following statements are True to program RTC?

Enable PWR block

Disable RTC protection

Boot from default factory program in system memory

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