STM32 MCUs Products

stm32h725 injected ADC with timer 8

Hey all, I'm trying to trigger an ADC interrupt with timer 3 on the regular channel and timer 8 on an injected channel for both ADC 1 and 2 on the STM32H725, However, It seems like I'm only ever able to trigger the regular channel interrupt with time...

Trouble with FDCAN

Hello, I built a small CAN network using CAN 2.0 transceivers. I wanted to add some FDCAN devices using classic mode. However, I seem to be having trouble just talking to the transceivers. For instance, I have an STM32L432 (Attached to a Nucleo). ...

Is the MCU STM32H743IIT6 can enable 35 GPIOs at the same time?

Hi,I have designed a STM32H743IIT6 based board for controlling 35 optocouplers(4N35). These optocouplers should work at the same time(worst case). Each optocoupler will take nearly 10mA current. But I have seen in the datasheet as "Total output curre...

For a project, i need 7 32bits timers (clk around 8MHz ) : - 4 output generate (1 signal, 3 interruptions) - 3 input capture I expect to use 32-bits timers (TIMER15 and 16) . is it OK with STM32H753 ? Regards

STM32 for high resolution delays

Is it possible to use a STM32 for something like the following:Take in a pulse, interrupting on a edge.Use this edge to generate multiple (5 or so) output pulses (only the positive edge timing needs tightly controlled timing). The output pulses might...

How to increase GPIO on any STM32 MCU?

I want to design PLC using STM32 MCU so for that I need to extend its GPIO pins how can i do this?Adding another MCU or shift registers any other ideas?Main cpu having MCU and another io modules added is communicate with ​main cpu using protocol like...

Trying to use Repeated Start I2C on STM32F103RCT6 but the MCU doesn't send a NACK at the end.

I am trying to communicate with a commonly used Accelerometer form NXP (MMA8451) which uses repeated start sequence over I2C protocol, which should look like this: My problem is that the MCU doesn't seem to send a NACK at the end of transmission and ...

stm32f103c8t6 short cuts after programming!

Hi, I am trying to make a circuit with stm32f103c8t6 and a nrf24l0+. I attach my schematic if pcb layout needed tell me to upload that. One of the circuit work good ( the send one) the other one which is identical does not.after soldering I did check...