void ADC_Configuration(void)
{
ADC_CommonInitTypeDef ADC_CommonInitStructure;
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE; // 1 Channel
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_Rising;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_TRGO;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_15Cycles); // PC1
ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
ADC_DMACmd(ADC1, ENABLE);
ADC_Cmd(ADC1, ENABLE);
ADC_SoftwareStartConv(ADC1);
}
void TIM2_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Prescaler = ((SystemCoreClock / 2) / 1000000) - 1;
TIM_TimeBaseStructure.TIM_Period =1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_SelectOutputTrigger(TIM2, TIM_TRGOSource_Update);
TIM_Cmd(TIM2, ENABLE);
}
int main(void) {
SystemInit();
RCC_Configuration();
GPIO_Configuration();
TIM2_Configuration();
TM_Delay_Init();
ADC_Configuration();
DMA_Configuration();
lcd_Init();
LcdClear(BLACK);
ADC_SoftwareStartConv(ADC1);
uint16_t ornek=1024;
int yeni[ornek];
int eski[ornek];
gecikme=10;
trig_ger=11;
adc_carpi = 3.333;
adcbolu = 80;
while(1) {
trigger(trig_ger);
for( int i = 0;i < ornek; i ++){
yeni[i] =(((int32_t)ADC_GetConversionValue(ADC1)*adc_carpi)/adcbolu);
TM_DelayMicros(gecikme); //burada gecikme olmassa dalga sekli oluşmuyor.
}
for( int i =0; i<ornek; i ++)
{
DrawPixel(i + 1,239-eski[i + 1],i + 2,239-eski[i + 2],BLACK);
DrawPixel(i + 1,239-yeni[i + 1],i + 2,239-yeni[i + 2],WHITE);
eski[i]=yeni[i];
}
}
}
(https://i.ibb.co/wQfVJHM/osilas.png) (https://ibb.co/wQfVJHM)