STM32 MCUs Products

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Resolved! STM32H7

STM32H7A3ZIT6QI have a firmware that receives data via UART and responds accordingly at an external side, using a Timer interrupt. When the JTAG is connected, the program works as expected, with all commands being responded to. However, when the JTAG...

khkim by Associate II
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  • 3 replies
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Boot To App Jump Not Working

I am trying to implement a bootloader using STM32 F103 processor.  I have not used an Arm processor before, but I have read the various articles and posts, and I think I’m doing the jump-to-app as described.  But as soon as I execute the jump, the ne...

RHJ by Associate II
  • 3399 Views
  • 10 replies
  • 0 kudos

I2C transmission problems

I am trying to communicate with a PIC microcontroller using the I2C interface using a STM32F103. I have a recurring problem: everything is fine until I run this function:static HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout(I2C_HandleTypeD...

Nor Flash memory mapping works unexpected on P-NUCLEO-WB55

I'm using MX25V1635F on WB55Below, read/write functions work fine#define SECTOR_ERASE_CMD 0x20#define QUAD_IN_FAST_PROG_CMD 0x38But in memory mapping mode, only few bytes correctly or even nothing right,CS, SCLK work as expected but D0 seems like out...

Resolved! Baud rate calculation for LPUART1 vs. USART1?

Hello,I was trying to use USART1 in a project with STM32H742VIT6 but decided to use LPUART1 instead.  I found that using the same BRR computation the baud rate is coming out MUCH slower (it's around a factor of 51 slower).  LPUART1SEL is in the reset...

briankaz by Associate III
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  • 3 replies
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Resolved! I2C LOOP BACK TEST

Hi,I would like to inquire whether it is possible to perform internal I2C and SPI loopback tests on the STM32F767ZI board.Regards,Mounika

Harathi by Associate
  • 3023 Views
  • 2 replies
  • 1 kudos

L432 won't programming

Hello,I am working in a new project (a USBC rechargable battery LORA board with temperature module) with some leds and a button. I attached the schematic here.I only program all my boards with the USART mode.I choose the L4 family because I want to s...

Resolved! Nucleo f746zg

Hello all, I'm learning about Nucleo F746ZGT6 . and also I'm doing some projects related to this board. I want to ask how much digital voltage & Current at the one pin of Nucleo F746zgt6. 

jbg by Associate II
  • 1464 Views
  • 3 replies
  • 1 kudos

USB CDC how to increase speed (baud rate) ?

Hello everyone,I am working on a signal analyser device, which needs to transmit data serially as fast as possible (idealy 1Mbaud/s).I am doing the following loop to transmit:  uint8_t buf_high[1] = {124}; // '|' uint8_t buf_low[1] = {48}; // '0' ini...

LLope.31 by Associate III
  • 13719 Views
  • 8 replies
  • 2 kudos