I have a 10 mhz external clock. I want to generate a phased locked division down to 1hz exclusively with timers. In my current test setup I am generating the 10mhz using TIM1 from the internal clock (this is to simulate the external clock). I am putt...
Hello,I’m using the B-L475E-IOT01A with MbedOS and have the following code:hall_a3 = new AnalogIn(A3);hall_a4 = new AnalogIn(A4);hall_a5 = new AnalogIn(A5);while(true) { printf("Hall A3: %f\n", hall_a3->read()); printf("Hall A4: %f\n", hall_a4-...
Trying to understand how to setup the ID and Mask with Extended ID. I want allow messages with id's 0x1E02xxxx. So 0x1E021234 would be accepted and 0x1E031234 rejected. /*##-2- Configure the CAN Filter ##########################################...
I am considering powering a STM32G4 with a DC-DC Switching Converter. One of the converters I am looking at has a PWM Switching Frequency of 6-MHz, the other 500 kHz. I'd use a hefty inductor and capacitor to filter the current ripple at this PWM fre...
Hello,which points of SDIO (DMA) settings i have to look for if my f_read reads only half but counts full.Example:uint16_t buffer1[1024];f_read(&file,&buffer1[0],1024,&cnt); buffer1 is filled with values to buffer1[511] but variable cnt gives me 10...
I am doing some characterization study for the cache behavior on STM32F7508. The result is hard to understand.Below is a simple code that I use. I align the array A1 to the cacheline (aligned(32)), and it is placed on SRAM1 above TCM (0x20010000~ ) w...
Hi, I have a design where I have multiple GPIO interrupts and some share the same interrupt input line, for example EXTI10_15. How can I differentiate in the interrupt callback routine which GPIO triggered the interrupt aside from reading these GPIOs...
Hello together,currently I'm facing a very strange issue:I'm working with an STM32F777.One GPIO of the MCU is used to enable the voltage to a sensor. This pin is initialized as GPIO_InitStructure.Mode = LL_GPIO_MODE_OUTPUT; GPIO_InitStructure.Outp...
Hi, is there a way to change LPTIM_CNT on TIM4 so that LPTIM_CNT = LPTIM_CMP, this is because for every interrupt we need the PWM to skip some period. is there any sample code ?
In our current project, we are using the STM32G431 (UFQFPN32) with only an HSE connected. In this project, we do also need a longtime accurate RTC for Time/Date. Since the internal LSE have a quit high accuracy of 1%, they dont seem to be suitable fo...
