STM32 MCUs Products
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How do I configure MCU as I2C slave device?
I've been trying to set up MCU (STM32 L432KC) as an I2C slave device. I have previously tested it as a master device to interface with a port expander(MCP2307) and it works perfectly fine.The following is the code I am running. The master sends 1,2,3...
STM32F031K6: Storing 16-bits variable in a non-volatile memory. Which solution is preferred internal Flash / external EEPROM?
I'm using STM32F031K6 in my design. I want to store 16-bits variable (Timer's AutoReload Register) in a non-volatile memory. What is best solution for this application? Internal Flash or external 128b EEPROM ?Any STM32 example code available to store...
Disabling readout protection level 1 in stm32F051xx microcontroller
Hi,I'm trying to protect my code from being able to read by others.So I chose readout protection level-1,I could make it read protected and I'm not able disable it by using readout protection level-0,I have to disable it using ST link utility.But I w...
Resolved! SPI with extra CE# pulse and not enough bytes
Hey,I'm a beginner.I'm working with STM32F303RET6 and I'm trying to communicate with SST26VF064B (Flash) over SPI.This is how I configured my SPI (Using MXCuce):static void MX_SPI2_Init(void) { /* USER CODE BEGIN SPI2_Init 0 */ /* USER CODE E...
Resolved! PWM, dynamically changing period, duty cycle (directly or via DMA)
Below question relates to STM32F0 and STM32F1 series MCU's.From the documentation (HAL), I have been unable to determine, whether or not on-the-fly changes are supported to the PWM period (TIM_TimeBaseInitTypeDef.TIM_Prescaler) and/or duty cycle (dir...
STM32H750 GPIO slow compared to STM32F2 series
Driving a RGB led matrix display (HUB75E) using custom board made with STM32H750. Earlier the prototype was made with STM32F205 and there was a minute flickering in some scenarios (brightness low). so thought of designing the board with STM32H7. But ...
Timer in cascade mode for PWM
I would like to control RC servos with PWM. Problem is that "Normal" PWM would waste most of the precision on the PPM period (20ms) leaving 5% of 16 or 32 bit timer for duty cycle. (1-2ms)I was reading about cascading timers and that is probably the ...
Resolved! Query regarding the nuances of encoder mode
Hi, I have an incremental encoder with 2400 counts per rev that is connected to a ball screw with a pitch of 5mm. I'm trying to accumulate the total count which I then use to calculate the exact distance of the object attached to the ballscrew. I've ...
H745ZI-Q unable to load a different program then demo
Hi,recently I switched from Arduino to Nucleo and now I wanted to play around with the H745ZI-Q and was following the step by step guide by st. Whenever I try to load a program to the mcu, only the demo blinky program is running. I have not found any...
