STM32 MCUs Products

[FFT algorithm with fixed point number!] Im going to research about FFT algorithm with floating point. It has ran! But I want to use fix point number, however, I dont understand it? Somebody help me please!! Thank you!!

LSE Clock Output Missing Pulses on NUCLEO-F767ZI

I used STM32CubeMX to build a very simple test case to output both the High Speed Clock (HSE) and Low Speed Clock (LSE) on output pins. I selected "Master Clock Output 1" and Master Clock Output 2" when I configured the input clocks. The HSE clock ...

Important question about advanced timer complementary pwm and strange things in HAL

Hi everyone!After AVR mcus STM32 with Cube and HAL is like an oasis in the desert! But after many experiments, researches and sleepless nights I know the situation isn't so great as I thought.I have few boards with 100, 103, 407 and other series.I'm ...

[STM32L082] Powering the USB section of the chip

I do not want to use the USB part of the STM32L082. According to the Ref Manual RM0376 page 140 there is no explicit mention that the VCC_USB can be tied to GND if not in use. So what would be the thing to do (and reduce the power even further): GND ...

No MOSI PULSE if use SPI re-mapped

Posted on February 28, 2013 at 04:03A am using STM32F103T4, a low density device, and want to use the re-mapped SPI1. Below is my implementation:  /* GPIO and AFIO clock enable */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO| RCC_APB2Periph_GPIOB, EN...

STM32L051 TIM21 trigger output issue

Hi,Using the following code, ADC can be triggered by TIM22 successfully./** * @fn static void ADC_Config(void) * * @brief ADC configuration. */ static void ADC_Config(void) { /* Enable clock */ RCC->AHBENR |= RCC_AHBENR_DMAEN; RCC-...

[STM32F4xx] Only 16 GPIO under control?

The STM32F4xx reference manual (RM0090) specifies under the GPIO main features section that there are "up to 16 I/Os under control" - does this mean I cannot control more than 16 GPIO pins or am I interpreting this incorrectly?

Issue while recording audio with SAI interface ?

Hi ,I'm doing an audio recording with the SAI interface of the STM32L4R9AI microcontroller.I'm using DMA in circular mode and I'm getting audio data which I wrote into SD memory.However, when I tried to open the recorded file , I hear my audio speec...

Bypassing UART data received on one port to another without disturbing the DMA based reading

I have a UART configured in DMA read mode:/* task 1 code*/ uint8_t dmaRXBuffer[1]; HAL_UART_Receive_DMA(&UART_DOWN_USB_TO_SERIAL, dmaRXBuffer, 1);   /* UART DMA receive complete ISR code*/ void HAL_UART_RxCpltCallback(UART_HandleTypeDef* huart) { if...