6410 ad 中断读取数据

中断读取数，写之前一直在datasheet中找不出是什么触发中断，后来发现，数据转换完成后就触发中断。所以对相应的中断进行初始化后，打开ad转换，就可以了。

相关的register：adccon：set ad channal，转换频率（prescaler value），prescaler enable，

                   addcon【0】 enable ad conversion；

adcdatax ：对应的data in it

adcclrint： clear interrupt ad

然后就是相关的vic的一些register了，对应的初始化就行了；

参考代码：

#include "gpio.h"#include "adcts.h"#include "uart.h"#include "intc.h"#include "system.h"// adccon u8 flag = 0;void IntClearAdd(void);void AdIntInit(void);u32 ReadData(void);void ClearAdInt(void);void AdInit(u32 freq){u32 TEMP;SYSC_GetClkInform(); TEMP = g_PCLK/freq -1;ADCTS->rADCCON = (1<<14)|(TEMP<<6);AdIntInit();return ;}void __irq AdInt(){flag = 1;//ReadData();ClearAdInt();IntClearAdd();}void AdIntInit(){ClearAdInt();IntClearAdd();IntVectAd(63,(u32)AdInt);IntEnable(63);}void ClearAdInt(){ADCTS->rADCCLRINT = 0X1;}void StartAd(){ADCTS->rADCCON |= 0X1;}//判断是否已经转换好u32 ReadData(void){//ADCTS->rADCCON |= 0x1;//start ADC//while (ADCTS->rADCCON & 0x1);//check if Enable_start is low//while (!(ADCTS->rADCCON & 0x8000));//check if EC(End of Conversion) flag is highreturn ( (int)ADCTS->rADCDAT0 & 0x3ff );}void OutRead(u32 x){u8 TEMP;TEMP = (u8)x/1000;Sendchar(TEMP);x = x%1000;TEMP = (u8)x/100;Sendchar(TEMP);x %= 100;TEMP = (u8)x/10;Sendchar(TEMP);x = (u8)x%10;Sendchar(x);}void delay(int times){    int i;    for(;times>0;times--)      for(i=0;i<3000;i++);}int main(){u32 temp;SYSTEM_EnableVIC();SYSTEM_EnableIRQ();UartInit();BaudInit(9600);AdInit(2500000);Sendchar('r');do{StartAd();while(flag == 0);temp = ReadData();OutRead(temp);delay(8000); } while(Getchar() != 'o'); }

intc.h

/*************************************************************************************** *Project Name : S3C6410 Validation**Copyright 2006 by Samsung Electronics, Inc.*All rights reserved.**Project Description :*This software is only for validating functions of the S3C6410.*Anybody can use this software without our permission.*  *--------------------------------------------------------------------------------------* *File Name : intc.h*  *File Description : This file declares prototypes of interrupt controller API funcions.**Author : Haksoo,Kim*Dept. : AP Development Team*Created Date : 2006/11/08*Version : 0.1 * *History*- Created(Haksoo,Kim 2006/11/08)*- Added Software Interrupt API function (wonjoon.jang 2007/01/18)*     - Added Interrupt Source for 6410  (2008/02/28)*  **************************************************************************************/#ifndef __INTC_H__#define __INTC_H__#ifdef __cplusplusextern "C" {#endif#include "library.h"#include "def.h"// VIC0#definerVIC0IRQSTATUS(VIC0_BASE + 0x00)#definerVIC0FIQSTATUS(VIC0_BASE + 0x04)#definerVIC0RAWINTR(VIC0_BASE + 0x08)#definerVIC0INTSELECT(VIC0_BASE + 0x0c)#definerVIC0INTENABLE(VIC0_BASE + 0x10)#definerVIC0INTENCLEAR(VIC0_BASE + 0x14)#definerVIC0SOFTINT(VIC0_BASE + 0x18)#definerVIC0SOFTINTCLEAR(VIC0_BASE + 0x1c)#definerVIC0PROTECTION(VIC0_BASE + 0x20)#definerVIC0SWPRIORITYMASK(VIC0_BASE + 0x24)#definerVIC0PRIORITYDAISY(VIC0_BASE + 0x28)#define rVIC0VECTADDR(VIC0_BASE + 0x100)#define rVIC0VECPRIORITY(VIC0_BASE + 0x200)#define rVIC0ADDR(VIC0_BASE + 0xf00)#define rVIC0PERID0(VIC0_BASE + 0xfe0)#define rVIC0PERID1(VIC0_BASE + 0xfe4)#define rVIC0PERID2(VIC0_BASE + 0xfe8)#define rVIC0PERID3(VIC0_BASE + 0xfec)#define rVIC0PCELLID0(VIC0_BASE + 0xff0)#define rVIC0PCELLID1(VIC0_BASE + 0xff4)#define rVIC0PCELLID2(VIC0_BASE + 0xff8)#define rVIC0PCELLID3(VIC0_BASE + 0xffc)#definerVIC1IRQSTATUS(VIC1_BASE + 0x00)#definerVIC1FIQSTATUS(VIC1_BASE + 0x04)#definerVIC1RAWINTR(VIC1_BASE + 0x08)#definerVIC1INTSELECT(VIC1_BASE + 0x0c)#definerVIC1INTENABLE(VIC1_BASE + 0x10)#definerVIC1INTENCLEAR(VIC1_BASE + 0x14)#definerVIC1SOFTINT(VIC1_BASE + 0x18)#definerVIC1SOFTINTCLEAR(VIC1_BASE + 0x1c)#definerVIC1PROTECTION(VIC1_BASE + 0x20)#definerVIC1SWPRIORITYMASK(VIC1_BASE + 0x24)#definerVIC1PRIORITYDAISY(VIC1_BASE + 0x28)#define rVIC1VECTADDR(VIC1_BASE + 0x100)#define rVIC1VECPRIORITY(VIC1_BASE + 0x200)#define rVIC1ADDR(VIC1_BASE + 0xf00)#define rVIC1PERID0(VIC1_BASE + 0xfe0)#define rVIC1PERID1(VIC1_BASE + 0xfe4)#define rVIC1PERID2(VIC1_BASE + 0xfe8)#define rVIC1PERID3(VIC1_BASE + 0xfec)#define rVIC1PCELLID0(VIC1_BASE + 0xff0)#define rVIC1PCELLID1(VIC1_BASE + 0xff4)#define rVIC1PCELLID2(VIC1_BASE + 0xff8)#define rVIC1PCELLID3(VIC1_BASE + 0xffc)#endifvoid IntEnable(u32 intNum){u32 temp;if(intNum<32){temp = Inp32(rVIC0INTENABLE);temp |= (1<<intNum);Outp32(rVIC0INTENABLE, temp);}else{temp = Inp32(rVIC1INTENABLE);temp |= (1<<(intNum-32));Outp32(rVIC1INTENABLE, temp);}}void IntVectAd(u32 intNum, u32 handler){if(intNum<32)//VIC0{Outp32(rVIC0VECTADDR+4*intNum, (unsigned)handler);}else//VIC1{Outp32(rVIC1VECTADDR+4*(intNum-32), (unsigned)handler);}}void IntClearAdd(){Outp32(rVIC0ADDR, 0); Outp32(rVIC1ADDR, 0);   }