STM32 MCUs Products

SPI communication

I used STM32F407VGT6, software-driven SPI, and analyzed with a logic analyzer, and the unpacking corresponded to the program, but there is no signal for this module, that is, it has a problem

Resolved! functions (e.g. printf) not working in timer callback function (Systick, Timer)

Hello,I usually make a code based on the timer callback function to handle multiple tasks.However, I don't know why functions like printf in the systick callback function don't work at all if the flag switching is in the same function.It works If I p...

Without FATFS lib using for memory card read

Hi,I am try to read memory card hex file data to use STM cube IDE FATES library.but FATES library take nearly 20 KB of memory. so if any other way is there means recommend to me.controller : STM32F103 IDE : STM32 Cube IDE.thank you.

STM32L1 HardFault after wakeup from sleep mode + fix

I would like to share a bug I encountered and how to fix it:I am using an STM32L151, the goal is to set it into SLEEP mode and wake it up using a UART receive interrupt while debugging. All configurations to pins, registers and interrupts are made co...

Resolved! STM32G0 redirect printf() to _write() and use UART - How to?

Hi,I know the question has been asked before, and there is some information (to some extent) on the internet, though I cannot seem to make it happen. My question is:How can I use print() for debugging purpose? I have an UART peripheral up and running...

STM32U599 QSPI connect PSRAM, MR read/write OK, but write/read data from PSRAM fail

Using STM32U599 Hex SPI connect with PSRAM(256MBits， 32 MBytes), configure Hex SPI as QSPI, command/address is 4 Lines and 32 Bits. Only use IO0/1/2/3 and CS/CLK and IO15(used to make PSRAM enter OSPI or QSPI mode)Now, we could read/write PSRAM Mode ...

Resolved! STM32H573 PB14

In our project I use STM32H573VIT6 LDO uC. We have a problem with the PB14 pin. We use 3 pins for LED control (PB10, PB13 and PB14, see photo). The problem with the PB14 is that the LED lights up dimly without code initialization. If PB14 is initiali...

Resolved! CAN-bus with STM32F103RB

Hello there!I am trying to use some STM32F103RB Nucleoboards and some MCP2551 chips to make a CAN-bus. I got this problem where I can make it work in loop-back mode, but I cannot send from one board, to another one. I know the Circuit is stable and c...

Resolved! USART4 Tx idle stays low STM32G070

Hello everyone,I successfully used USART1 and USART3 in my application. However, when trying to use USART4, Rx is working but not Tx. The idle signal stays at 0V all the time. Here is what I already check:UART initstatic void MX_USART4_UART_Init(void...

Resolved! STM32H503 - Timing feasibility using an external RTC

Hi... Greetings... We're planning to use STM32H503 MCU in our application. To brief about our application, we've a parallel RTC IC which has gone EOL. This RTC receives commands from the motherboard MCU. So, we're mimicking the RTC's functionality u...

STM32 MCUs Products

Forum Posts

SPI communication

Resolved! functions (e.g. printf) not working in timer callback function (Systick, Timer)

Without FATFS lib using for memory card read

STM32L1 HardFault after wakeup from sleep mode + fix

Resolved! STM32G0 redirect printf() to _write() and use UART - How to?

STM32U599 QSPI connect PSRAM, MR read/write OK, but write/read data from PSRAM fail

Resolved! STM32H573 PB14

Resolved! CAN-bus with STM32F103RB

Resolved! USART4 Tx idle stays low STM32G070

Resolved! STM32H503 - Timing feasibility using an external RTC

STM32H7 Dual Core MCU CM4 FLASH 0x081E0000

The use of BIST receive mode bit in UCPD of STM32G...

STM32U575 GPDMA1 Configuration Problem

Using SysTick Timer in Stop Mode 2 on STM32U5

STM32WL5MOCH6S battery voltage reading

STM32U5A9 USB MSC