STM32 MCUs Products

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How to deal with AT messages in correct way on STM32 MCU

Hello. I was searching for information but I was unable to find clear answer. What is correct way to handle AT messages from gsm/bluetooth/gps modules ?I am making one product that will use at least two uart interfaces (SARA-R12) and NINA-W151 module...

Linas L by Senior II
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UsageFault Handler is not been called

Hi there,I am using the MCU STM32F103C8T6 and in my code I force an UsageFault condition but the UsageFault_Handler is not been called. I have enabled the USGFAULTENA bit in the SHCSR register, which enables the UsageFault. I envoked an UsageFault by...

ASele.1 by Associate
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Doubt on DMA Settings generated by IDE

Hi,I would like to use DMA request for USART1 RX and SPI1 RX. The AN4301 at section 4.3 states:Software sequence to enable DMAThe following software sequence applies when enabling DMA:Configure the suitable DMA stream.Enable the DMA stream used (set ...

simo zz by Senior
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Hi. I have a problem about STM32F105RCT7. I want to use CANBUS protocol in this IC. I sure I made the CANBUS configuration right. My problem is, I can transmit Txmessage even I can view my message on the oscilloscope.

 But I can not return my message by CANLINE. When I do the same operations in STM32F103C8T6, I can get answers from the Canbus line.I chose the stm32f105RC family to use double canbus. I can't solve the problem. Do you have any ideas?. Thank you.

How to reduce the I2C speed ?

I am working on a STM32F746G-DISCO with I2C got on Arduino style board.I would like to reduce the I2C speed because sometime this lock my app with some external DAC chip.At this time I am using:CAMERA_IO_Init();   BSP_TS_Init(480, 272);     and these...

[SOLVED] --- BSP_I2C_Read() hang my STM32 app ---

I am developping a touch screen user interface to control an audio preampl and dac.I have no problems with I2C bus to set the registers of CT7302PL and ES9018K2M but if I try to read a single register the application hang.This is my I2C configuration...

Resolved! STM32 NVIC lower priority Interrupt doesn't work again after being preempted by the interrupt with the higher priority.

Hello,I am using stm32f4 discovery. I wrote 2 interrupts to blink LEDs in different speeds to write an example for NVIC. I have 1 question that I wonder about and 2 issues I couldn't solve. Here is the situation :All interrupts work well seperately. ...

ABuyu.1 by Associate II
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Resolved! Wrong voltage readings from ADC

Board: NUCLEO STM32F103RB - MB1136 C-01Hi all,I try read, trought ADC1_IN0 (pin PA0) , the temperauture value from LM35, but read wrong value.LM35: connected at 5V, GND and A0. ADC1_IN0: work at 8 MHz with voltage reference of 3.3V and 12 bit of reso...