CC3200-UART-ADC-PWM

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在CC3200SDK-1.2.0上测试可用，下面是main函数的代码：
注意：需使用example adc project 进行代码融合
//采集电压以PWM的方式输出，串口接收相关指令，执行相关操作，显示相关信息#include <string.h>#include <stdint.h>#include <stdlib.h>#include <stdbool.h>#include "utils.h"#include "hw_memmap.h"#include "hw_common_reg.h"#include "hw_types.h"#include "hw_adc.h"#include "hw_ints.h"#include "hw_gprcm.h"#include "rom.h"#include "rom_map.h"#include "interrupt.h"#include "prcm.h"#include "uart.h"#include "pinmux.h"#include "pin.h"#include "adc.h"#include "gpio.h"#include "adc_userinput.h"#include "uart_if.h"#include "gpio_if.h"#include "hw_apps_rcm.h"#include "timer.h"#define USER_INPUT #define UART_PRINT         Report#define FOREVER            1#define APP_NAME           "ADC Reference"#define NO_OF_SAMPLES      128#define CONSOLE              UARTA0_BASE#define UartGetChar()        MAP_UARTCharGet(CONSOLE)#define UartPutChar(c)       MAP_UARTCharPut(CONSOLE,c)unsigned long pulAdcSamples[4096];#define TIMER_INTERVAL_RELOAD   40035 /* =(255*157) */#define DUTYCYCLE_GRANULARITY   157#define MAX_STRING_LENGTH    80#if defined(ccs)extern void (* const g_pfnVectors[])(void);#endif#if defined(ewarm)extern uVectorEntry __vector_table;#endifstatic void BoardInit(void);static void DisplayBanner(char * AppName);void UpdateDutyCycle(unsigned long ulBase, unsigned long ulTimer,                     unsigned char ucLevel){    MAP_TimerMatchSet(ulBase,ulTimer,(ucLevel*DUTYCYCLE_GRANULARITY));}void SetupTimerPWMMode(unsigned long ulBase, unsigned long ulTimer,                       unsigned long ulConfig, unsigned char ucInvert){    MAP_TimerConfigure(ulBase,ulConfig);    MAP_TimerPrescaleSet(ulBase,ulTimer,0);    MAP_TimerControlLevel(ulBase,ulTimer,ucInvert);    MAP_TimerLoadSet(ulBase,ulTimer,TIMER_INTERVAL_RELOAD);    MAP_TimerMatchSet(ulBase,ulTimer,TIMER_INTERVAL_RELOAD);}void InitPWMModules(){    MAP_PRCMPeripheralClkEnable(PRCM_TIMERA2, PRCM_RUN_MODE_CLK);    MAP_PRCMPeripheralClkEnable(PRCM_TIMERA3, PRCM_RUN_MODE_CLK);    SetupTimerPWMMode(TIMERA2_BASE, TIMER_B,            (TIMER_CFG_SPLIT_PAIR | TIMER_CFG_B_PWM), 1);    SetupTimerPWMMode(TIMERA3_BASE, TIMER_A,            (TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_PWM | TIMER_CFG_B_PWM), 1);    SetupTimerPWMMode(TIMERA3_BASE, TIMER_B,            (TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_PWM | TIMER_CFG_B_PWM), 1);    MAP_TimerEnable(TIMERA2_BASE,TIMER_B);    MAP_TimerEnable(TIMERA3_BASE,TIMER_A);    MAP_TimerEnable(TIMERA3_BASE,TIMER_B);}void DeInitPWMModules(){    MAP_TimerDisable(TIMERA2_BASE, TIMER_B);    MAP_TimerDisable(TIMERA3_BASE, TIMER_A);    MAP_TimerDisable(TIMERA3_BASE, TIMER_B);    MAP_PRCMPeripheralClkDisable(PRCM_TIMERA2, PRCM_RUN_MODE_CLK);    MAP_PRCMPeripheralClkDisable(PRCM_TIMERA3, PRCM_RUN_MODE_CLK);}static voidDisplayBanner(char * AppName){    Report("\n\n\n\r");    Report("\t\t *************************************************\n\r");    Report("\t\t       CC3200 %s Application       \n\r", AppName);    Report("\t\t *************************************************\n\r");    Report("\n\n\n\r");}static voidBoardInit(void){#ifndef USE_TIRTOS#if defined(ccs)    MAP_IntVTableBaseSet((unsigned long)&g_pfnVectors[0]);#endif#if defined(ewarm)    MAP_IntVTableBaseSet((unsigned long)&__vector_table);#endif#endif    MAP_IntMasterEnable();    MAP_IntEnable(FAULT_SYSTICK);    PRCMCC3200MCUInit();}void main(){    unsigned int  uiChannel;    unsigned int  uiIndex=0;    unsigned long ulSample;    float         Brightness;    char cString[MAX_STRING_LENGTH+1];    char cCharacter;    int iStringLength = 0;    BoardInit();    PinMuxConfig();    InitPWMModules();    InitTerm();    DisplayBanner(APP_NAME);    while(FOREVER)    {        uiIndex=0;#ifdef CC3200_ES_1_2_1        //        // Enable ADC clocks.###IMPORTANT###Need to be removed for PG 1.32        //        HWREG(GPRCM_BASE + GPRCM_O_ADC_CLK_CONFIG) = 0x00000043;        HWREG(ADC_BASE + ADC_O_ADC_CTRL) = 0x00000004;        HWREG(ADC_BASE + ADC_O_ADC_SPARE0) = 0x00000100;        HWREG(ADC_BASE + ADC_O_ADC_SPARE1) = 0x0355AA00;#endif        MAP_PinTypeADC(PIN_58,PIN_MODE_255);        uiChannel = ADC_CH_1;                                                                 //设置ADC输入通道        MAP_ADCTimerConfig(ADC_BASE,2^17);        MAP_ADCTimerEnable(ADC_BASE);        MAP_ADCEnable(ADC_BASE);        MAP_ADCChannelEnable(ADC_BASE, uiChannel);        while(uiIndex < NO_OF_SAMPLES + 4)        {            if(MAP_ADCFIFOLvlGet(ADC_BASE, uiChannel))            {                ulSample = MAP_ADCFIFORead(ADC_BASE, uiChannel);                pulAdcSamples[uiIndex++] = ulSample;            }        }        MAP_ADCChannelDisable(ADC_BASE, uiChannel);        uiIndex = 0;        UART_PRINT("\n\r");        Brightness = (((((pulAdcSamples[4+uiIndex] >> 2 ) & 0x0FFF))*1.4)/4096)*100;            //采集电压        UART_PRINT("%f\n\r",(Brightness));        UartPutChar(Brightness);                                                                //从串口输出        MAP_UtilsDelay(80000000);        cCharacter = UartGetChar();                                                             //从串口输入//      UartPutChar(cCharacter);        cString[iStringLength] = cCharacter;        iStringLength++;        switch(cString[0])        {        case '0':            UpdateDutyCycle(TIMERA2_BASE, TIMER_B, Brightness);                                 //更新PWM占空比        break;        case '1':            UpdateDutyCycle(TIMERA3_BASE, TIMER_B, Brightness);        break;        case '2':            UpdateDutyCycle(TIMERA3_BASE, TIMER_A, Brightness);        break;        default :         break;        }    }}
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