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Resolved! HAL USART serial buffer pointers not declared volatile?

One of the practices of software design is to use volatile buffers when ISR and main loop access the data in the same buffers. This makes sure certain compiler register optimisations do not create unreliable code.If I look at the HAL code for the USA...

Johi by Senior III
  • 1599 Views
  • 3 replies
  • 1 kudos

Resolved! Multiple Channel ADC STM32H743ZI2

Hi all, i'm experimenting using ADC  in STM32H743ZI2i managed to get the single channels working on ADC1 and ADC2,and i want to use ADC3 with multiple channels, oncourse i followed all the manuals in youtube etc.. but still no lucki am using ADC3 cha...

shahaf321_0-1704106244590.png shahaf321_1-1704106282640.png shahaf321_2-1704106301681.png shahaf321_3-1704106322293.png
shahaf321 by Associate III
  • 1010 Views
  • 2 replies
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ADC to DAC using DMA in STM32f4

Hi everyone,ı was trying to make adc to dac using DMA. Shortly the adc value is writed into DAC data register. So that the potentiometer is turned then the digital value is writed ADC register. The brightness of led is changed. However, ı get ADC val...

QSPI flash IC obsolescence from STM32F412G-DISCO

Hi,We are referring to the bill of materials of the STM32F412G_DISCO board. We are looking up for QSPI flash IC (MICRON N25Q128A13EF840F) used in the development board for our new design and found that its lifecycle is obsolete on mouser india. Also ...

EJ.1 by Associate II
  • 1075 Views
  • 4 replies
  • 1 kudos

STM32H745IIT6 - is power wired right?

Ok here is the situationDid a board design, when plugged in i noticed 3.3v was not outputting correctly. Realized I put the wrong 3.3v regulator, maxes out at 100ma. Removed and put in a 3.3v regulator that goes up to 800ma which i thought would be f...

STM32H745IIT6.png STM32H745IIT6-bottom.png STM32H745IIT6-right.png STM32H745IIT6-left.png

STM32F411CEU6 with VL53L8CX SWD ist not working

Hey guys,I set the SWD up for a project inculding a PCB with an F411CEU6 and an VL43L8CX. To test the pcb, I wana get the distance printed to the SWD console. I set up the SWD and with the main.c file it works fine, but with the vl53l8cx.c the printf...

julion2 by Associate II
  • 4084 Views
  • 12 replies
  • 0 kudos

STM32H723GT6 bare test failing

I have had a couple of Nucleo 144 test/demo boards for a couple of years and have had no issues with them.So I decided to try and create the simplest PCB from scratch.What is happening is the chip itself is resetting when powered with a repeated sign...

MDeac.1 by Associate III
  • 711 Views
  • 2 replies
  • 1 kudos

How to use I2C with DMA - Touch Sensor

Hi,I have had partial success implementing DMA with I2C as below but the only way I can receive the data "val" is by adding a HAL_Delay of 1uS and the "val" is shown as an incorrect value. Is there anyway to both do the DMA send and receive without t...

Linkpad by Associate III
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  • 4 replies
  • 1 kudos

Resolved! Using DMA from ADC to DTCM with STM32F765VITx

I have a project that is using DMA channels to transfer ADC values to DTCM. The values seem to be getting to the memory correctly but I was confused by Figure 1 of the datasheet which shows the ADC/DMA/SRAM on the AHB but the DTCM on a bus that appea...

BobbyBeta by Associate III
  • 951 Views
  • 2 replies
  • 1 kudos