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Resolved! Register programming GPIOA->(AF07<<4) and (AF07<<8)

hi come across these code using register programing, STM32F411 Nucleo bd, anyone can advise how does the (AF07<<4) and (AF07<<8) relate to UART2 PA2 & PA3? please advise..  #define AF07 0x07 GPIOA->AFR[1]|=(AF07<<4)|(AF07<<8); //ALT7 for UART2...

Resolved! STM32G070 DMA memory to memory software trigger

Hi,I have read thoroughly RM0454, STM32G070CB datasheet and AN4187 in order to understand how to configure the DMA and DMAMUX in order to feed the CRC peripheral with FLASH data using the DMA (with CPU it is working but way slower than expected).I do...

Kraal by Lead
  • 7279 Views
  • 8 replies
  • 4 kudos

STM32H7 faster using floats than using uint32_t

I made following two versions of the same software to process DMA data, one using floats and the second using uint32_t to try run faster, but as a surprise the first one run faster:  //161 void process_data_ADC1() { float samples1=(2.0f/(float)ADC_B...

JLope.11 by Associate III
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  • 4 replies
  • 2 kudos

iec62056-21

hello guys does anyone have a implantation of iec6256-21 for st mcus ??i saw a pdf from st that suggested Andreas anformatique implantation but i couldnt find it note: im looking for a library for server or metering device side not for handheld devic...

ap.1 by Associate II
  • 1612 Views
  • 2 replies
  • 0 kudos

I have Doubts about NVS(Non volatile Storage) topic

Hello Everyone,I create a NVS_Driver in STM32 controller, I have Doubts about the NVS, Can you Help me, I am Confused about How to make an NVS_Driver (Read, Write) Operation, Can you give some tips to create that,--> some doubts--> How to send the NV...

Mohan30 by Associate III
  • 1134 Views
  • 0 replies
  • 0 kudos

Resolved! About H503 I3C

I have 2 NUCLEO-H503RB board.example 1->>>>Board 1, I3C1 is contorller.Board 2, I3C1 is target , I3C2 is target.Controller boardcast ENTDAA message , target1 can receive , but target2 can not receive. example 2->>>>Board 1 , I3C1 is controller , I3C2...

Sunwaz by Associate III
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  • 3 replies
  • 0 kudos