STM32 MCUs Products

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how to write in external flash memory with stm32l4?

HII am using stm32l496 and want to use external flash memory MX25R6435F .Although this memory has 64 MB of memory, I set it to 8 MB in the ioc file and mx25r6435f library, but when I write in that string or character, it is not written correctly and ...

alianvari by Associate III
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  • 2 replies
  • 1 kudos

Resolved! STM32H7 cache and DMA transfer error rate.

Hi.It seems, that sometimes data in cached memory is corrupted.DMA transfer data from SPI to SRAM2 (0x30000000). I use ping-pong buffer in SRAM2 (two similar buffers). Data processing performing for first part of the buffer in thread, while second it...

Aleks by Associate III
  • 4108 Views
  • 6 replies
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Resolved! QSPI from Dual to Single flash mode

Hello, I tried to start QSPI working on a Single flash mode but have a problem with non readable part config registers (NonVolatile, Volatile and Enhanced Volatile). As I understand when working in Dual Flash mode this registers should write and read...

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ROlii.1 by Associate
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  • 2 replies
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Observing the different execution time for a function if placed at different code memory location on STM32F765NIHx controller.

e.g: Below are the execution time of memset() function at different locations.1. memset() plcaed at 0x0000000000219e96 : Time = 57.10 usec for 3k buffer size.2. memset() placed at 0x0000000000219d42 : Time = 28.66 usec for 3k buffer size.- memset is ...

AN.4 by Associate II
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  • 2 replies
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STM32H7 ADC + DMA working partially

Hello,I am using the ADC1 + DMA to sample 10 analog channels on the CM4 without any MPU config. When I remove any external trigger e.g. 3.3V power source on the analog channel, and I start sampling all 10 channels via the DMA , all values inside the...

Floki.1 by Associate II
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  • 7 replies
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STM32H7 ADC with DMA not working, Cache disabled

Hi,I am trying to use the ADC with DMA but the values on the buffer are not being updated. Next i detail the steps that i have done:Disabled the ICache and DCache.Place the DMA buffer in a separate section in RAM_D2 with the address 0x30000000, so th...

DCajigal by Associate III
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  • 5 replies
  • 0 kudos