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thannara123 · 2024-09-04

why the ide show these type of values how to hide it ?

thannara123 · 2024-08-28

I'm designing a unipolar sine wave inverter using a lookup table to generate PWM signals, but I'm encountering some issues and have a few questions:Should the values in the lookup table start from zero, or from the peak value of the sine wave?Is it s...

thannara123 · 2024-08-27

Hi , In SPWM generation ,in Center align mode ,May i require give one sine table value twice , in the upword and down counting sequence . Original sine wave values: [A1, A2, A3, ..., A200] DMA array: [A1, A1, A2, A2, A3, A3, ..., A200, A200] like wi...

thannara123 · 2024-08-21

Hello Experts ,I am generating a two-Channel PWM with complementary channels also HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNEL_1, (uint32_t *)sin_table, 20);//low HAL_TIMEx_PWMN_Start_IT(&htim1, TIM_CHANNEL_1); HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNE...

thannara123 · 2024-08-11

I am transfering data array from an array to PWM register of TIM1.int16_t sin_table[20]= { 0, 39, 77, 113, 147, 177, 202, 223, 238,247, 250, 247, 238, 223, 202, 177, 147, 113, 77, 39};HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNEL_1, (uint32_t *)sin_table...

thannara123 · 2024-08-30

But I tried Likewise , but whenever the polarity changes its makes high spikes plese look the image As am a beginer am dont know the exact problem I used one Half cycle , CH1 output polarity is normal , and CH2 's polarty is inverted , whenever theh...

thannara123 · 2024-08-27

if it duplicate , in one pwm cycle there are two ccr value , is it distrote the wave . please how do i to get a smooth sinewave ?

thannara123 · 2024-08-23

How it can use in DMA complete transferXferCpltCallback // how can use this function

thannara123 · 2024-08-21

Hai did you find the solution ?

thannara123 · 2024-08-21

Oh okay i got and corrected it as follows void PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim){ if (htim->hdma[TIM_DMA_ID_CC1] != NULL && htim->hdma[TIM_DMA_ID_CC1] == &hdma_tim1_ch1){HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);}}htim1.PWM_PulseFinished...

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CUBE IDE shows some strange character

How to Properly Implement a Lookup Table for a Unipolar Sine Wave Inverter?

In center align mode SPWM generation may I need give the same CCR value in the LUT

Change Polarity of PWM with DMA in circular mode

hdma_tim1_ch1.XferCpltCallback = TransferCompleteCallback; IS NOT TRIGGERIING

Re: How to Properly Implement a Lookup Table for a Unipolar Sine Wave Inverter?

Re: In center align mode SPWM generation may I need give the same CCR value in the LUT

Re: How to use register callbacks in STM32

Re: How to change pwm polarity or PWM mode after each DMA cycle.

Re: hdma_tim1_ch1.XferCpltCallback = TransferCompleteCallback; IS NOT TRIGGERIING