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Forum Posts

I2C read issue

Hi,We are using stm32f446zet for a new project . We want to read 3 bytes of data using i2c and the read function is as follows . The 1st two bytes are read correctly but the 3rd byte is always zero . Please help us to solve these issuesint I2C3_ReadS...

adavi.9 by Associate
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  • 1 replies
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SDIO driver

hi fellows, i'm developing the SD card application for STM32f429 discovery boards. i have the FATFS software with myself. my point i want to develop my own driver for SD card i don't want use HAL driver . i developed the initialization code for SD c...

Ark1 by Associate II
  • 1452 Views
  • 5 replies
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Resolved! Where is JTAG pinout for STM32F091RC?

Where do you connect JTAG (e.g. TMS, TCK, TDO, TDI, NRESET) to the STM32F091RC? I can't find this anywhere in the datasheet (r4-1/17), is this supported?

Justin1 by Senior
  • 641 Views
  • 2 replies
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RFID EM4095 - Can't read

I'm using RFID EM4095 with my STM32 microprocessor, i'm trying to read the RFID card but i always get bad synchSTM32 Clocks -> 16MHZ ,32KHZDMOD_OUT ->PB3, rdyclk -> PA15I'm using 2 interrupts for DMOUD_OUT, RDY_CLK signalAlgorithm1.wait for falling e...

mbara by Associate
  • 958 Views
  • 0 replies
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IAP check condition before jumping to application.

I'm using STM32L4S5 to develop an IAP application following the example provided on STM32L4CubeV1.11.0 under STM32L476G-EVAL directory.Following the code bellow, before jumping to the Application region, we have to check if the content of the first a...

MELMA by Associate
  • 619 Views
  • 1 replies
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Changing SPI modes with HAL

Hi,I am using a DAC which takes data in 24 bit format, 8 control bits and 16 data. I currently have two seperate large 8 bit and 16 bit arrays.I want to change between modes on the fly before each transfer using SPI_DATASIZE_8BIT / 16BIT, but it stay...

Matt G by Associate II
  • 626 Views
  • 2 replies
  • 0 kudos