STM32 MCUs Products

RM0440, Rev 4, STM32G4 Reference Manual - Section 13.6.1 information missing

Page 435, the explanation for Bits 28:24 ends with "(see )."This is a real cliff hanger! ;^)

Resolved! How to call the function "_write (int file, char * ptr, int len)" when calling the function printf ("test")?

Hi.I am using stm32cubeide version 1.2.0. I am using stm32CubeMx version 5.6.1.The "int _write (int file, char * ptr, int len)" function is not called when the printf ("test") function is called.What did you do:1. Added to Properties ---> c / c ++ ...

STM32F722VC QSPI read problem, data lines are ignored

Hello!I am trying to read data by QSPI (MCU STM32F722VC). But QSPI always reads out the last value written to DR register by previous operation and does not read data from data lines. For exapmle, DR value is 0xAA from previous write operation. Then ...

Develop digital power with STM32G4 ,using a voltage control and a current loop.How could one FMAC realise two contorl loop?

In STM32CubeG4 Firmware Package, the G474 digiatal power demo use a FMAC to contol a buck or boost toplogy with one voltage control loop.So if I want to use two loops,one for voltage and other for current loop, could the FMAC(in my opinion,that is j...

hi, Is it possible to write a code for modbus read and write registers without using modbus libraries.

Actually i got the project on modbus but i am trying to code without using libraries but i am not getting expected result. can anyone help me with this and what extra line i need to add in my code please.Thank you

I2C slave transmit getting first byte as ffffffff

I am using i2c ,arduino as master and stm32l073RZ as slave.When I transmit from arduino(master) to slave(st) via i2c.I am getting correct values.But when I slave transmit from st the first byte received in arduino-master is ffffffff,the other bytes a...

Resolved! Distinguish GPIO port from external interrupt

Hello,I'm some confused how external interrupt is working with GPIO. If PA3 and PB3 are both configured as external interrupt, and assume the two interrupts are not coming simultaneously, how to determine which PIN generates the interrupt when EXTI3 ...

CAN bit timing options?

I've been using the following two bit timings for a CAN bus speed of 500K on the STM32F103. I was just wondering which is better? Does it make any difference? Is there another preferred option? Thanks a lot for any insight. //(1+9+8)*4 = 72 //1+9+...

stm32 spi half-duplex transmit into receive mode

the target type is stm32f072, firstly the master transmit data success, slave receive data ok; should i need to disable spi ,enable BIDIOE in slave. but the slave can't transmit data, how to solve it?

Resolved! STM32H743ZI SPI Fault/Freeze when reset

Hello Everybody,I am using the STM32H743ZI chip with STM32CubeIde. I have been having success with my code running in debug mode with the debugger attached. however when I power off the board and start it up there is a problem when the program start ...

STM32 MCUs Products

Forum Posts

RM0440, Rev 4, STM32G4 Reference Manual - Section 13.6.1 information missing

Resolved! How to call the function "_write (int file, char * ptr, int len)" when calling the function printf ("test")?

STM32F722VC QSPI read problem, data lines are ignored

Develop digital power with STM32G4 ,using a voltage control and a current loop.How could one FMAC realise two contorl loop?

hi, Is it possible to write a code for modbus read and write registers without using modbus libraries.

I2C slave transmit getting first byte as ffffffff

Resolved! Distinguish GPIO port from external interrupt

CAN bit timing options?

stm32 spi half-duplex transmit into receive mode

Resolved! STM32H743ZI SPI Fault/Freeze when reset

STM32H753: Receiving Messages via UART

prevent peripherals being automatically reset duri...

STM32H7RSxx OTG strange behavior with bulk transfe...

stm32f407 fsmc with ili9488 library for driving il...

STM32N6 VENC at higher resolutions

STM32wle5 Low power