STM32 MCUs Security

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STM32F407 RDP issue and flash corruption

Posted on November 21, 2014 at 08:06Hi,I'm experiencing strange issues with a product based on STM32F407. When doing short power outages to the PCB (uses 24VAC), it sometimes erases or corrupts flash page(s) that are used for eeprom emulation. Pages...

tero by Associate
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RDP - Readout Protection on STM32F10x

Posted on November 10, 2014 at 15:03Hi, I'm having a problem with the CMSIS peripheral library call to set Readout Protection on STM32F10x: I call FLASH_ReadOutProtection(ENABLE) I have put a flag into this function to verify that it's setting OB->R...

CRC32 on STM32F205 using IAR command line

Posted on October 30, 2014 at 14:58I want to implement the IAR example for ST32Fx ''Calculate CRC32 as in STM32 hardware (v.5.50 and later)''  http://supp.iar.com/Support/?note=64424&from=note+11927 The problem I don't use a fix address for end of C...

Barbie by Associate II
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using the CRC calculation unit in STM32F205

Posted on October 27, 2014 at 22:47I need to do a CRC calculation. So I want to use the CRC calculation unit in the MCU.It is pretty easy one. Just active the CRC clk and then invoke word into CRC->DR .I want to see if it work O.K. so I reset it to ...

Barbie by Associate II
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  • 3 replies
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CRC only up to 8kB Flash instead of 16kB

Posted on October 28, 2014 at 17:38I want to calculate a CRC over the whole Flash Memory (16kB) of a STM32F030F4. I works fine up 8kB. Putting Values >8192 for BufferLength into CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength). The progra...

klaus2 by Associate II
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size of intvec in STM32F205

Posted on October 24, 2014 at 23:18I want to use the CRC example of IAR ''ROM size save with CRC32 Note 52791'' from my Boot.The problem is that the intvec area set on start of the APP ROM but don't get into the CRC calculation.Today I see that the ...

Barbie by Associate II
  • 213 Views
  • 2 replies
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intvec size

Posted on October 24, 2014 at 23:15I want to use the CRC example of IAR ''ROM size save with CRC32 Note 52791'' from my Boot.The problem is that the intvec area set on start of the APP ROM but don't get into the CRC calculation.Today I see that the ...

Barbie by Associate II
  • 153 Views
  • 1 replies
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Calculate and check CRC over bin file STM32F205

Posted on October 20, 2014 at 13:51I want to make a CRC check over the APP  FLASH area (I use a BIN file) to know that my APP update O.K.For that I have some question.1. Does the IAR has an option of giving me the CRC of he BIN file I made ?2. How c...

Barbie by Associate II
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  • 3 replies
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Read protection with over-the-air updates?

Posted on October 14, 2014 at 17:39I am trying to figure out a way to secure a small section of user data on the STM32F437, and keep it in place during reflashing the device. I ideally want to be able to make it so this data is read protected, but t...

cns1307 by Associate II
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