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CP.Tang · 2021-02-15

I am trying to acquire the amount of ticks a timer counts using a 50Hz signal (acquired from the mains using hardware). For this I use a EXTI8 interrupt where the 50Hz signal is sampled. I can see on the scope that this interrupts works perfectly (by...

CP.Tang · 2021-02-15

Problem solved. In the reference manual: "Bits 15:0 PSC[15:0]: Prescaler value The counter clock frequency (CK_CNT) is equal to ***_PSC / (PSC[15:0] + 1). PSC contains the value to be loaded in the active prescaler register at each update event (incl...

CP.Tang · 2021-02-15

(RCC->ICSCR >> 8) Before writing = 64(RCC->ICSCR >> 8) After writing = 75

CP.Tang · 2021-02-15

Setting up TIM6 with LL drivers and CUBE MXstatic void MX_TIM6_Init(void) { /* USER CODE BEGIN TIM6_Init 0 */ /* USER CODE END TIM6_Init 0 */ LL_TIM_InitTypeDef TIM_InitStruct = {0}; /* Peripheral clock enable */ LL_APB1_GRP1_Enable...

CP.Tang · 2021-02-15

FYI. When I do not touch the RCC->ICSCR register. The 50Hz I generate using the same settings, is about 49.6Hz. Which is still waaaaay off.

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STM32G070RB HSI16 Clock and clock calibration issues. Is there a clock calibration example without the need to use HSE or LSE clocks?

Re: STM32G070RB HSI16 Clock and clock calibration issues. Is there a clock calibration example without the need to use HSE or LSE clocks?

Re: STM32G070RB HSI16 Clock and clock calibration issues. Is there a clock calibration example without the need to use HSE or LSE clocks?

Re: STM32G070RB HSI16 Clock and clock calibration issues. Is there a clock calibration example without the need to use HSE or LSE clocks?

Re: STM32G070RB HSI16 Clock and clock calibration issues. Is there a clock calibration example without the need to use HSE or LSE clocks?