/*
Name: Schieder Fabian
Datum: 11.02.2026
Datei: DMA.c

Hardware: MDDS

Funktionsbeschreibung:
*/
#include "stm32f10x.h"
#include "armv40_frl.h"

double ADC_Volt;
char buffer[24];
volatile uint16_t adc_values[2];										// adc_values[0] = PA0, adc_values[1] = PA1


void adc_dma_init()
{
	ADC1->SMPR2 = 0x0000002D;													// Sample time ADC1 für channel 1 und channel 2
	
	RCC->APB2ENR |= RCC_APB2ENR_ADC1EN;								// Clock für ADC1
	RCC->AHBENR |= RCC_AHBENR_DMA1EN;									// Clock für DMA
	
	
/*------------------- DMA konfig -------------------*/
	
	DMA1_Channel1->CPAR = (uint32_t)&ADC1->DR;		  	// Peripheral Address 
	DMA1_Channel1->CMAR = (uint32_t)adc_values; 			// Memory Address
	DMA1_Channel1->CNDTR = 2;													// 2 Werte: Kanal0 und Kanal1
	
	DMA1_Channel1->CCR = 
		  DMA_CCR1_MINC																  // Memory increment 
		| DMA_CCR1_MSIZE_0															// Memory 16 bit
		|	DMA_CCR1_PSIZE_0															// Peripheral 16 bit
		|	DMA_CCR1_CIRC																	// Circular mode
		|	DMA_CCR1_PL_1																	// Priority high
		|	DMA_CCR1_EN;																	// DMA Enable
	
	
/*------------------- ADC konfig -------------------*/

	ADC1->CR1 = ADC_CR1_SCAN;												  // scan mode
	ADC1->CR2 = 
			ADC_CR2_DMA 
		| ADC_CR2_CONT 
		|	ADC_CR2_ADON;
	
	ADC1->SQR1 |= 0x00100000;													// 2 mal conversion item in regular sequence
	ADC1->SQR2 |= 0x00000000;
	ADC1->SQR3 |= 0x00000001;													// Set channel 1 as 1st, channel 0 as 2nd
	
	ADC1->CR2 |= ADC_CR2_ADON;												// nochmal setzten startet die Wandlung des ADCs
	
}


int main(void)
{
	uart3_init(9600);
	
	RCC->APB2ENR |= RCC_APB2ENR_IOPAEN; // Clock für GPIOA
	GPIOA->CRL &= 0xFFFFFF00;
	
	adc_dma_init();
	
	while(1)
	{
		
	}
}