139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
//#include "ls1c103.h"
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#include "ls1x.h"
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#include "test.h"
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#include "Config.h"
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#include "ls1x_gpio.h"
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#include "ls1c103_adc.h"
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#include "ls1c103_dma.h"
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#include "ls1c103_map.h"
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//This test uses regular channels only
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static int err;
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#define ADC1_DR_Address ((uint32_t)(ADC_BASE + 0x4c))
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ADC_InitTypeDef ADC_InitStructure;
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DMA_InitTypeDef DMA_InitStructure;
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vuint16_t ADCSingle[12];
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extern unsigned int str2num(unsigned char *);
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void GPIO_Configuration_ADC(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 |GPIO_Pin_12 | GPIO_Pin_13;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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int adc_single(unsigned int chn, unsigned int times)
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{
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uint8_t rch[8] = { // regular channel sequence
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ADC_Channel_0 , //0
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ADC_Channel_1 , //1
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ADC_Channel_2 , //2
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ADC_Channel_4 , //3
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ADC_Channel_6 , //4
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ADC_Channel_7 , //5
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ADC_Channel_8 , //6
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ADC_Channel_9 , //7
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};
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/* DMA1 channel1 configuration ----------------------------------------------*/
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DMA_DeInit(DMA1_Channel1);
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DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
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DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADCSingle;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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DMA_InitStructure.DMA_BufferSize = times;
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
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DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
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DMA_InitStructure.DMA_Priority = DMA_Priority_High;
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DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
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DMA_Init(DMA1_Channel1, &DMA_InitStructure);
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/* Clear DMA1 FLAG of channel1 */
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DMA_ClearFlag(DMA1_FLAG_GL1);
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/* Enable DMA1 channel1 */
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DMA_Cmd(DMA1_Channel1, ENABLE);
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/* Deinitializes the ADC*/
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ADC_DeInit(ADC1);
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/* ADC1 configuration ------------------------------------------------------*/
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ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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ADC_InitStructure.ADC_ScanConvMode = ENABLE;
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ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
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ADC_InitStructure.ADC_NbrOfChannel = times;
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ADC_InitStructure.ADC_ClkDivider = 0x1; //Loongson Feature 1:8MHz 3:4MHz
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ADC_InitStructure.ADC_JTrigMod = 2; //Loongson Feature
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ADC_InitStructure.ADC_ADCEdge = 0; //Loongson Feature
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ADC_InitStructure.ADC_OutPhaseSel = 2; //Loongson Feature
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ADC_Init(ADC1, &ADC_InitStructure);
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/* ADC1 regular channel configuration */
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int i;
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for (i=0;i<times;i++)
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{
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ADC_RegularChannelConfig(ADC1, rch[chn-1], i+1, ADC_SampleTime_16Cycles);
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}
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/* Enable ADC1 DMA */
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ADC_DMACmd(ADC1, ENABLE);
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/* Enable ADC1 */
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ADC_Cmd(ADC1, ENABLE);
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/* Start ADC1 Software Conversion */
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);
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while (!DMA_GetFlagStatus(DMA1_FLAG_TC1));
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DMA_ClearFlag(DMA1_FLAG_GL1);
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for (i=0;i<times;i++)
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{
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printf("val of %d rconv: %d mv,0x%x\n", chn, (ADCSingle[i]*3300)>>12,ADCSingle[i]);
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}
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/* Deinitializes the ADC*/
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//ADC_DeInit(ADC1);
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return 0;
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}
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void adc_single_test (int argc, void *argv[])
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{
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printf("\n");
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unsigned int chn;
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unsigned int times;
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if(argc == 2)
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{
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times = 1;
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}
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else if (argc == 3)
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{
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times = str2num(argv[2]);
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if (times==0 || times>12)
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{
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printf("\n times: 1-12 \n");
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}
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}
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else
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{
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printf("\n usage: s <ch> <times>\r\n");
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printf("\n times: 1-12 \n");
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}
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chn = str2num(argv[1]);
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GPIO_Configuration_ADC();
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adc_single(chn, times);
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}
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