STM32 MCUs Products

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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...

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EMJ.1 by Associate
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  • 2 replies
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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...

Resolved! STM32L0 multi-channel ADC reading has DMA problem

I am trying to read 2 channel ADC with STM32L011F4.My ADC and DMA settings in cubemx are as follows my problem is that the DMA only returns the low 8 bit of the last channel.uint16_t ADC_Reads[2] = {0};   while (1) { HAL_ADC_Start_DMA(&hadc,(uint...

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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...

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HSaee.1 by Associate II
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  • 19 replies
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Resolved! Switching time for mux on Opamp

Various STM32 products have opamps that have a mux in front of it.Ex: STM32G4, STM32F3, STM32H7 series, etc.If I change the mux input setting using the control status register (OPAMPx_CSR::VP_SEL or VN_SEL), how long does it take for the mux to switc...