ADC Trigger TIM8
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2013-04-03 4:35 AM
Posted on April 03, 2013 at 13:35
Then I create a PWM signal using TIM8_CH1
Hi,
I create a TIM8 mode up and down using this InstructionTIM_TimeBaseStructure.TIM_Period = 2000;
TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned3;
TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);
TIM8->CCR1 = 1500 ;
// PC6 Signal 1
I have another part of my program that read ADC value of 5 signal using DMA.
I want to trigger the reading of ADC 4 time in period (The red circled in figure)
Ie when TIM8 = 0 , TIM8 = 1500 Up,, TIM8 = 2000, TIM8 = 1500 Down memorize them then repeat the cycle conversion .
I use this line in ADC configuration
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_RisingFalling;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T8_CC1;
But i don't know what this 2 line do exactly :\
And how to verify if The trigger works in the desired Time or no ?
Can someone help me to read ADC in this 4 time
Thanks :)
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2013-04-12 1:30 AM
Posted on April 12, 2013 at 10:30
Any help
Thanks :)