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Dependencies:   mbed

Fork of LGstaandart by Dmitry Kovalev

SPI.c@31:c783288001b5, 2016-02-05 (annotated)

Committer:
igor_v
Date:
Fri Feb 05 23:30:23 2016 +0000
Revision:
31:c783288001b5
Parent:
21:bc8c1cec3da6
Child:
47:d902ef6f7564
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
igor_v 0:8ad47e2b6f00 1 #include "Global.h"
igor_v 0:8ad47e2b6f00 2 struct SPI Spi;
igor_v 31:c783288001b5 3 unsigned int Temp_AMP=0;
igor_v 31:c783288001b5 4
igor_v 31:c783288001b5 5 unsigned int Temp_ADC_2=0;
igor_v 31:c783288001b5 6 unsigned int Temp_ADC_3=0;
igor_v 31:c783288001b5 7 unsigned int Temp_ADC_4=0;
igor_v 31:c783288001b5 8 unsigned int Temp_ADC_5=0;
igor_v 31:c783288001b5 9
igor_v 31:c783288001b5 10
igor_v 31:c783288001b5 11 unsigned int Buff_ADC_1 [256];
igor_v 31:c783288001b5 12 unsigned int Buff_ADC_2 [256];
igor_v 31:c783288001b5 13 unsigned int Buff_ADC_3 [256];
igor_v 31:c783288001b5 14 unsigned int Buff_ADC_4 [256];
igor_v 31:c783288001b5 15 unsigned int Buff_ADC_5 [256];
igor_v 0:8ad47e2b6f00 16
igor_v 31:c783288001b5 17 unsigned int Buff_AMP [256];
igor_v 31:c783288001b5 18
igor_v 31:c783288001b5 19 unsigned int SinPLC[64]= {1023, 1016, 1006, 993, 976, 954, 904, 874, 841, 806, 768, 728,
igor_v 31:c783288001b5 20 687, 645, 601, 557, 500, 379, 337, 296, 256, 219, 183, 150,
igor_v 31:c783288001b5 21 120, 93, 69, 48, 31, 18, 8, 0, 8, 18, 31, 48,
igor_v 31:c783288001b5 22 69, 93, 120, 150, 183, 219, 256, 296, 337, 379, 468, 512, 557,
igor_v 31:c783288001b5 23 601, 645, 687, 728, 768, 806, 841, 874, 904, 954, 976, 993, 1006,
igor_v 31:c783288001b5 24 1016, 1023
igor_v 31:c783288001b5 25 };
igor_v 31:c783288001b5 26 void DACLInit( void )
igor_v 21:bc8c1cec3da6 27 {
igor_v 31:c783288001b5 28 /* setup the related pin to DAC output */
igor_v 31:c783288001b5 29 LPC_PINCON->PINSEL1 = 0x00200000; /* set p0.26 to DAC output */
igor_v 31:c783288001b5 30 return;
igor_v 21:bc8c1cec3da6 31 }
igor_v 0:8ad47e2b6f00 32 void SPI_Exchange()
igor_v 0:8ad47e2b6f00 33 {
igor_v 31:c783288001b5 34 unsigned int Dummy;
igor_v 31:c783288001b5 35
igor_v 31:c783288001b5 36 Spi.ADC5 = LPC_SSP0->DR;
igor_v 31:c783288001b5 37 Spi.ADC4 = LPC_SSP0->DR;
igor_v 31:c783288001b5 38 Spi.ADC3 = LPC_SSP0->DR;
igor_v 31:c783288001b5 39 Spi.ADC2 = LPC_SSP0->DR;
igor_v 31:c783288001b5 40 Spi.ADC1 = LPC_SSP0->DR;
igor_v 31:c783288001b5 41
igor_v 31:c783288001b5 42 Input.ArrayIn[2]= Spi.ADC5;
igor_v 0:8ad47e2b6f00 43
igor_v 31:c783288001b5 44 LPC_SSP0->DR=0x5555;
igor_v 31:c783288001b5 45 LPC_SSP0->DR=0x5555;
igor_v 31:c783288001b5 46 LPC_SSP0->DR=0x5555;
igor_v 0:8ad47e2b6f00 47
igor_v 31:c783288001b5 48 if (CountV31 & 1) { //если нечетный такт то
igor_v 31:c783288001b5 49 LPC_SSP0->DR = WRITE_DAC0; //e.команда для ЦАП_0 передавать.
igor_v 31:c783288001b5 50 LPC_SSP0->DR = (Spi.DAC_A); //e. передача 12 бит
igor_v 31:c783288001b5 51 } else { //если такт четный.
igor_v 31:c783288001b5 52 LPC_SSP0->DR = WRITE_DAC1 ; //e.команда для ЦАП_1 передавать.
igor_v 31:c783288001b5 53 LPC_SSP0->DR = (Spi.DAC_B); //e. передача 12 бит
igor_v 31:c783288001b5 54 }
igor_v 0:8ad47e2b6f00 55
igor_v 31:c783288001b5 56 LPC_DAC->CR = (((SinPLC[CountV64]*35)+21300));
igor_v 31:c783288001b5 57 while (LPC_SSP0->SR & RX_SSP_notEMPT) //если буфер SPI не пуст.
igor_v 31:c783288001b5 58 Dummy = LPC_SSP0->DR; //очистить буфер.
igor_v 31:c783288001b5 59
igor_v 31:c783288001b5 60
igor_v 31:c783288001b5 61 Buff_ADC_1 [CountV255] = Spi.ADC1; // ампл ацп.
igor_v 31:c783288001b5 62 Buff_ADC_2 [CountV255] = Spi.ADC2;
igor_v 31:c783288001b5 63 Buff_ADC_3 [CountV255] = Spi.ADC3;
igor_v 31:c783288001b5 64 Buff_ADC_4 [CountV255] = Spi.ADC4;
igor_v 31:c783288001b5 65 Buff_ADC_5 [CountV255] = Spi.ADC5;
igor_v 31:c783288001b5 66
igor_v 31:c783288001b5 67
igor_v 0:8ad47e2b6f00 68
igor_v 31:c783288001b5 69 Temp_AMP += Buff_ADC_5[CountV255];
igor_v 31:c783288001b5 70 Temp_AMP -= Buff_ADC_5[(CountV255-32) & 0xff]; // заполнение буфера накопленых приращений за 8 тактов
igor_v 31:c783288001b5 71 Buff_AMP[CountV255] = (unsigned int) (Temp_AMP);
igor_v 31:c783288001b5 72
igor_v 31:c783288001b5 73 Temp_ADC_2 += Buff_ADC_2[CountV255];
igor_v 31:c783288001b5 74 Temp_ADC_2 -= Buff_ADC_2[(CountV255-32) & 0xff];
igor_v 31:c783288001b5 75
igor_v 31:c783288001b5 76 Temp_ADC_3 += Buff_ADC_3[CountV255];
igor_v 31:c783288001b5 77 Temp_ADC_3 -= Buff_ADC_3[(CountV255-32) & 0xff];
igor_v 31:c783288001b5 78
igor_v 31:c783288001b5 79 Temp_ADC_4 += Buff_ADC_4[CountV255];
igor_v 31:c783288001b5 80 Temp_ADC_4 -= Buff_ADC_4[(CountV255-32) & 0xff];
igor_v 31:c783288001b5 81
igor_v 31:c783288001b5 82 Temp_ADC_5 += Buff_ADC_1[CountV255];
igor_v 31:c783288001b5 83 Temp_ADC_5 -= Buff_ADC_1[(CountV255-32) & 0xff];
igor_v 0:8ad47e2b6f00 84 }
igor_v 0:8ad47e2b6f00 85 void Init_SPI_Exchange()
igor_v 0:8ad47e2b6f00 86 {
igor_v 31:c783288001b5 87 ResetCS(ADC); //prepare ADC for sampling
igor_v 31:c783288001b5 88 SetDAC(DAC);
igor_v 31:c783288001b5 89 LPC_GPIO2->FIOSET |= 0x0000004; // turn on the LED
igor_v 0:8ad47e2b6f00 90 //LPC_GPIO2->FIOSET |= 0x0000004; // turn on the LED
igor_v 31:c783288001b5 91 //LPC_GPIO2->FIOSET |= 0x0000004; // turn on the LED
igor_v 31:c783288001b5 92 SetCS(ADC); //start ADC sampling
igor_v 31:c783288001b5 93 ResetDAC(DAC);
igor_v 21:bc8c1cec3da6 94 }