STM32 MCUs Products

hi, i am working on modbus using stm32f103 . I need to write or update values into registers . but i am not getting what i need to add to my code . can anyone help me with this please. Thank you

Using other pins of TSC group as GPIO or Alternate Peripheral Function

Hello All,I have a doubt. As we know each group of the Touch Sense Controller (TSC) is made of four IO pins. One is used for sense capacitor, leaving behind three for touch sense electrode usage. But if we need to use only one or two of these as an t...

What is the min/max skew on the counter outputs for the STM32F107RC?

Hello all, I looking to use a STM32F107FC as a digital waveform generator. The system clock would be 28MHz and so would the APB bus feeding the timers. I plan to have TIM4 drive an output with a 14MHz clock signal and act as a master for TIM3. TIM3 w...

STM32F3 HSE crystal startup issues

We are using an STM32F303VEH6 on a custom design. We are using a ILCX13-FF5F10-16.000MHZ crystal oscillator. We have the PLL and clock gain setup to generate a 72 MHz CPU clock. On some CPUs we have problems where the CPU doesn't appear to try and st...

On the fly OTA example

Hi,I am working on STM32 with Quectel GPRS module.Now I have to implement OTA without using any external flash or SD card.Is there any example for GPRS based OTA without using any external memory to park the bin/hex file and program the MCU flash on ...

How to use timer1 for pwm input

I use STM32F103c6 timer1 for pwm input . after right config in cubemx, and in simulink enable timer1 ch1 interrupt. Then auto code gen, but code in Keil the ch1 interrupt not enable, its callback not registered, the timer also not started. Want to kn...

L031K6 : ADC value is not similar as real value

I get 12bit ADC data from DMA multi channel.and when I get it , I use this formula to get ADC measure.​adc input (0-4095) * 3300 / 4095 ​but This result usually have different from real measurement, about 100-200mV.In that case, Is there better way t...

Programming full flash image over I2C

Hello,Is it possible to write the full image over I2C? If so, what is the recommended way to do this? Regards,Bhautik