Ask questions, find answers, and share insights on STM32 products and their technical features.
Pwm is not continuous My clock freq 20mhz Where am i doing wrong ? void PWMparamc(uint32_t PWM_freq, uint8_t duty){ PWMparam.period = (SystemCoreClock / PWM_freq) - 1; //PWMparam.prescaler = (SystemCoreClock / TimerTickFreq ) ; temp_duty = ((...
Why there are two pending registers for interrupt? One of them is EXTI_PR and other one is Interrupt Set-pending Registers(ISPR) which is in NVIC controller registers.?What is the diffrence between them?Thanks in advance
I need to preform a simple SMBus read command but I'm not understanding how to set it up. I can do a I2C read() but I can't find any examples of how to do a simple SMBus read word(). Are there any simple examples?Thanks,Richard
I have the following block of code. I am averaging 6 A/D inputs. Stream holds these 6 average values and looks fine. One at a time the loop converts each sample to ascii and appends '\n' and '\r' and then transmits them over the UART. If I use UA...
I want the maximum processing speed from the STM32H723. So I enabled ITMC and DTCM cache. The project prcesses samples from 4 ADC inputs with ADC1. ADC1 is timer triggered and set up to use DMA in circular mode to transfer data to a buffer in D2 doma...
I am using one timer to trigger a second one and produce pwm outputs on the second timer. I would like to know if I disable this pwm timer (using CEN) and then re-enable it, will the PWMs re-start or wait until the next trigger event to re-start?If t...
I used stm32f469i-disco and lvgl to work with the lcd. but when i am using lvgl 8.30, error appear and says "dirent.h" and "unistd.h" not found. where i can found the library? pls help
Hi all, I'm trying to have the ADC sampling rate controlled by a timer (TIM9 in this case) and when 8 samples are acquired, DMA will fire a transfer complete interrupt. So far I'm able to get the ISR to fire one time but never again. In main I set up...
