Forum Posts
Embedded Survey 2023 just Out - Guess which MCU/MPU Inside ?
Dear community members and Ambassadors, Embedded Survey 2023 is just out : It is interesting to see domination of C language by far and that a processor vendor’s brand weighs heavily in the decision process. “The embedded study lists highlight the...
STM32L151 USART Rx + DMA length of received data is not updated
Hi, team.I'm working on STM32L151 and have implement data transfer over USART + DMA, the implementation is very closed (but contains some modifications) to the following example:https://github.com/MaJerle/stm32-usart-uart-dma-rx-tx/blob/main/projects...
Oscillator Design - where are ESR and gmcrit formulars from?
I am reading datasheet AN2867(Oscillator design guide). There are two formulars : ESR and gmcrit. It's common formular and easy to find it from internet. My question is where are these formulas from? (How to derive these formulas?)AN2867 Rev 18, shee...
STM32F100RB "commmand not supported" error
Hi,I am working with STM32F100RBT6B. I am getting "command not supported" error while flashing the code using Keil Ide with ST-LINK V2 debugger. Please help.Thanks.
STM32F401CCU6 vs STM32F446RCT6 code problem
Hello. I use Timer 2 on STM32F401CCU6 to read rising and falling of clock signal. Timer 2 channel 1 in Input capture direct mode (Rising), channel 2 in Input capture indirect mode (falling). I registered an timer callback event and do some calculatio...
STM32L4R9 DSI with ST7797
Hi,I need some initialization code for STM32L4R9 to drive a DSI display (1.2 rounded) 1 line. I cannot find any reference online on how to drive this kind of display. I also have initialization DSI frame from display manufacturer but I cannot make DS...
STM32F4 how to change pins from USART to GPIO and back to USART again
// Init the GPIO GPIO_InitTypeDef GPIO_InitStruct = {0}; HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3); GPIO_InitStruct.Pin = GPIO_PIN_2; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &G...
Resolved! SPI timing
Hello,I am familiarizing myself with the SPI controller on a NUCLEO-F303K8 development board using the CMSIS device headers. I have written a program to send and receive a single byte using polling or interrupts. While functionally it appears correct...
