Dmitry Kovalev / Mbed 2 deprecated LG2

fork

Dependencies:   mbed

Fork of LG by igor Apu

InputOutput.c@0:8ad47e2b6f00, 2016-01-30 (annotated)

Committer:
igor_v
Date:
Sat Jan 30 13:00:39 2016 +0000
Revision:
0:8ad47e2b6f00
Child:
1:f2adcae3d304
2016_01_30;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
igor_v 0:8ad47e2b6f00 1 #include "InputOutput.h"
igor_v 0:8ad47e2b6f00 2 #include "CyclesSync.h"
igor_v 0:8ad47e2b6f00 3 #include "LPC17xx.h"
igor_v 0:8ad47e2b6f00 4 //-------------------temp-------
igor_v 0:8ad47e2b6f00 5 #include "el_lin.h"
igor_v 0:8ad47e2b6f00 6 INPUT Input;
igor_v 0:8ad47e2b6f00 7 OUTPUT Output;
igor_v 0:8ad47e2b6f00 8
igor_v 0:8ad47e2b6f00 9 volatile uint32_t I2CMasterState = I2C_IDLE;
igor_v 0:8ad47e2b6f00 10 volatile uint32_t I2CMasterBuffer[I2C_WRITELENGTH];
igor_v 0:8ad47e2b6f00 11
igor_v 0:8ad47e2b6f00 12 int ExchangeErr = 0;
igor_v 0:8ad47e2b6f00 13 //----------------------temp---------------------
igor_v 0:8ad47e2b6f00 14 extern char test;
igor_v 0:8ad47e2b6f00 15 /******************************************************************************
igor_v 0:8ad47e2b6f00 16 ** Function name: G_Photo_Exchange
igor_v 0:8ad47e2b6f00 17 **
igor_v 0:8ad47e2b6f00 18 ** Descriptions: Driver for I2C exchange
igor_v 0:8ad47e2b6f00 19 **
igor_v 0:8ad47e2b6f00 20 ** parameters: None
igor_v 0:8ad47e2b6f00 21 ** Returned value: None
igor_v 0:8ad47e2b6f00 22 **
igor_v 0:8ad47e2b6f00 23 ******************************************************************************/
igor_v 0:8ad47e2b6f00 24
igor_v 0:8ad47e2b6f00 25 void G_Photo_Exchange(void)
igor_v 0:8ad47e2b6f00 26 {
igor_v 0:8ad47e2b6f00 27 uint32_t StatValue;
igor_v 0:8ad47e2b6f00 28 static uint32_t WrIndex;
igor_v 0:8ad47e2b6f00 29 static int32_t time_out = TIMEOUT;
igor_v 0:8ad47e2b6f00 30
igor_v 0:8ad47e2b6f00 31 if (I2CMasterState)
igor_v 0:8ad47e2b6f00 32 return; //e.transmitting is not active, go away
igor_v 0:8ad47e2b6f00 33
igor_v 0:8ad47e2b6f00 34 if (--time_out < 0) //e. valid time period elapsed, go away
igor_v 0:8ad47e2b6f00 35 {
igor_v 0:8ad47e2b6f00 36 time_out = TIMEOUT;
igor_v 0:8ad47e2b6f00 37 I2CMasterState = I2C_IDLE; //e. timer elapsed, go away
igor_v 0:8ad47e2b6f00 38 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 0:8ad47e2b6f00 39 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC;
igor_v 0:8ad47e2b6f00 40 return;
igor_v 0:8ad47e2b6f00 41 }
igor_v 0:8ad47e2b6f00 42 else if (!(LPC_I2C0->CONSET & I2CONSET_SI)) //e. state of I2C bus has not been changed
igor_v 0:8ad47e2b6f00 43 return;
igor_v 0:8ad47e2b6f00 44
igor_v 0:8ad47e2b6f00 45 StatValue = LPC_I2C0->STAT;
igor_v 0:8ad47e2b6f00 46
igor_v 0:8ad47e2b6f00 47 switch ( StatValue )
igor_v 0:8ad47e2b6f00 48 {
igor_v 0:8ad47e2b6f00 49 case 0x08: // A Start condition is issued (write data for the first potentiometer)
igor_v 0:8ad47e2b6f00 50 WrIndex = 0;
igor_v 0:8ad47e2b6f00 51 time_out = TIMEOUT; //e. enable countdown
igor_v 0:8ad47e2b6f00 52 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 0:8ad47e2b6f00 53 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 0:8ad47e2b6f00 54 break;
igor_v 0:8ad47e2b6f00 55
igor_v 0:8ad47e2b6f00 56 case 0x10: // A repeated started is issued (write data for the second potentiometer)
igor_v 0:8ad47e2b6f00 57 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 0:8ad47e2b6f00 58 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 0:8ad47e2b6f00 59 break;
igor_v 0:8ad47e2b6f00 60
igor_v 0:8ad47e2b6f00 61 case 0x18: //e. Regardless, it's a ACK after slave address reading
igor_v 0:8ad47e2b6f00 62 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 0:8ad47e2b6f00 63 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 0:8ad47e2b6f00 64 break;
igor_v 0:8ad47e2b6f00 65
igor_v 0:8ad47e2b6f00 66 case 0x28: //e. Regardless it's a ACK after data byte
igor_v 0:8ad47e2b6f00 67 if (WrIndex == I2C_WRITELENGTH) //e. we have transmitted the data for the B potentiometer
igor_v 0:8ad47e2b6f00 68 {
igor_v 0:8ad47e2b6f00 69 I2CMasterState = I2C_IDLE;
igor_v 0:8ad47e2b6f00 70 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 0:8ad47e2b6f00 71 Output.Str.Cnt_Dif = 300;
igor_v 0:8ad47e2b6f00 72 }
igor_v 0:8ad47e2b6f00 73 else if (WrIndex == 3)
igor_v 0:8ad47e2b6f00 74 {
igor_v 0:8ad47e2b6f00 75 LPC_I2C0->CONSET = I2CONSET_STA;
igor_v 0:8ad47e2b6f00 76 Output.Str.Cnt_Dif = 200;
igor_v 0:8ad47e2b6f00 77 }
igor_v 0:8ad47e2b6f00 78 else
igor_v 0:8ad47e2b6f00 79 {
igor_v 0:8ad47e2b6f00 80 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 0:8ad47e2b6f00 81 Output.Str.Cnt_Dif = 100;
igor_v 0:8ad47e2b6f00 82 }
igor_v 0:8ad47e2b6f00 83 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 0:8ad47e2b6f00 84 break;
igor_v 0:8ad47e2b6f00 85
igor_v 0:8ad47e2b6f00 86 case 0x20: //e. no aknowledgement after address transmitting
igor_v 0:8ad47e2b6f00 87 case 0x30: //e. no aknowledgement after data block transmitting
igor_v 0:8ad47e2b6f00 88 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 0:8ad47e2b6f00 89 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC);
igor_v 0:8ad47e2b6f00 90 I2CMasterState = I2C_IDLE; //e. fix new state
igor_v 0:8ad47e2b6f00 91 break;
igor_v 0:8ad47e2b6f00 92 }
igor_v 0:8ad47e2b6f00 93 return;
igor_v 0:8ad47e2b6f00 94 }
igor_v 0:8ad47e2b6f00 95 /******************************************************************************
igor_v 0:8ad47e2b6f00 96 ** Function name: DAC_ADC_Exchange
igor_v 0:8ad47e2b6f00 97 **
igor_v 0:8ad47e2b6f00 98 ** Descriptions: Loading data to DACs and initialization of ADC reading
igor_v 0:8ad47e2b6f00 99 **
igor_v 0:8ad47e2b6f00 100 ** parameters: None
igor_v 0:8ad47e2b6f00 101 ** Returned value: None
igor_v 0:8ad47e2b6f00 102 **
igor_v 0:8ad47e2b6f00 103 ******************************************************************************/
igor_v 0:8ad47e2b6f00 104 void DAC_ADC_Exchange()
igor_v 0:8ad47e2b6f00 105 {
igor_v 0:8ad47e2b6f00 106 //-------------------------loading data from ADC to buffer---------------------------------------
igor_v 0:8ad47e2b6f00 107 //int x;
igor_v 0:8ad47e2b6f00 108 ExchangeErr &= ~ADC_ERR_MSK; //e. �������� ���� ������
igor_v 0:8ad47e2b6f00 109 if (LPC_SSP0->SR & SSP_BUSY) //e. ���� ����� ����������� �� �����
igor_v 0:8ad47e2b6f00 110 {
igor_v 0:8ad47e2b6f00 111 ExchangeErr |= ADC_ERR_MSK; //e. ���������� ���� ������
igor_v 0:8ad47e2b6f00 112 }
igor_v 0:8ad47e2b6f00 113 else
igor_v 0:8ad47e2b6f00 114 {
igor_v 0:8ad47e2b6f00 115 LPC_SSP0->DR = 0x8001; //�������� 0x8001 � ������� ��������.
igor_v 0:8ad47e2b6f00 116 if (Sys_Clock & 1)//���� �������� ���� ��
igor_v 0:8ad47e2b6f00 117 {
igor_v 0:8ad47e2b6f00 118 LPC_SSP0->DR = WRITE_DAC0; //e.������� ��� ���_0 ����������.
igor_v 0:8ad47e2b6f00 119 LPC_SSP0->DR = (-Output.ArrayOut[3]+32767); //e. �������� 12 ���
igor_v 0:8ad47e2b6f00 120 }
igor_v 0:8ad47e2b6f00 121 else //���� ���� ������.
igor_v 0:8ad47e2b6f00 122 {
igor_v 0:8ad47e2b6f00 123 LPC_SSP0->DR = WRITE_DAC1 ; //e.������� ��� ���_1 ����������.
igor_v 0:8ad47e2b6f00 124 LPC_SSP0->DR = (Output.ArrayOut[0]<<1) & 0xFFF0; //e. �������� 12 ���
igor_v 0:8ad47e2b6f00 125 }
igor_v 0:8ad47e2b6f00 126 }
igor_v 0:8ad47e2b6f00 127 }
igor_v 0:8ad47e2b6f00 128 /******************************************************************************
igor_v 0:8ad47e2b6f00 129 ** Function name: ADC_Input
igor_v 0:8ad47e2b6f00 130 **
igor_v 0:8ad47e2b6f00 131 ** Descriptions: Reading data from ADC
igor_v 0:8ad47e2b6f00 132 **
igor_v 0:8ad47e2b6f00 133 ** parameters: None
igor_v 0:8ad47e2b6f00 134 ** Returned value: None
igor_v 0:8ad47e2b6f00 135 **
igor_v 0:8ad47e2b6f00 136 ******************************************************************************/
igor_v 0:8ad47e2b6f00 137 void ADC_Input()
igor_v 0:8ad47e2b6f00 138 {
igor_v 0:8ad47e2b6f00 139 uint32_t Dummy;
igor_v 0:8ad47e2b6f00 140
igor_v 0:8ad47e2b6f00 141 //---------------------read data from ADC buffer---------------------------------------------
igor_v 0:8ad47e2b6f00 142 Dummy = Dummy;
igor_v 0:8ad47e2b6f00 143 ExchangeErr &= ~ADC_ERR_MSK;
igor_v 0:8ad47e2b6f00 144
igor_v 0:8ad47e2b6f00 145 if (LPC_SSP0->SR & SSP_BUSY) //���� ����� ���� �� ������(�������� ������)
igor_v 0:8ad47e2b6f00 146 { ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������
igor_v 0:8ad47e2b6f00 147
igor_v 0:8ad47e2b6f00 148 if (!(LPC_SSP0->SR & TX_SSP_EMPT)) //����� �������� �� ����.
igor_v 0:8ad47e2b6f00 149 ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������
igor_v 0:8ad47e2b6f00 150 }
igor_v 0:8ad47e2b6f00 151 else //����� �������� ��������� �����.
igor_v 0:8ad47e2b6f00 152 {
igor_v 0:8ad47e2b6f00 153 Input.ArrayIn[0] = LPC_SSP0->DR; //������Thermo2
igor_v 0:8ad47e2b6f00 154 Input.ArrayIn[1] = LPC_SSP0->DR; //������ Thermo1
igor_v 0:8ad47e2b6f00 155 Input.ArrayIn[2] = LPC_SSP0->DR; //������ HF_out
igor_v 0:8ad47e2b6f00 156
igor_v 0:8ad47e2b6f00 157 while (LPC_SSP0->SR & RX_SSP_notEMPT) //���� ����� SPI �� ����.
igor_v 0:8ad47e2b6f00 158 Dummy = LPC_SSP0->DR; //�������� �����.
igor_v 0:8ad47e2b6f00 159 }
igor_v 0:8ad47e2b6f00 160
igor_v 0:8ad47e2b6f00 161
igor_v 0:8ad47e2b6f00 162 }
igor_v 0:8ad47e2b6f00 163 /*****************************************************************************
igor_v 0:8ad47e2b6f00 164 ** Function name: DAC_Output
igor_v 0:8ad47e2b6f00 165 **
igor_v 0:8ad47e2b6f00 166 ** Descriptions: Output data to intrnal DAC
igor_v 0:8ad47e2b6f00 167 **
igor_v 0:8ad47e2b6f00 168 ** parameters: output - code for output
igor_v 0:8ad47e2b6f00 169 ** Returned value: None
igor_v 0:8ad47e2b6f00 170 **
igor_v 0:8ad47e2b6f00 171 *****************************************************************************/
igor_v 0:8ad47e2b6f00 172 void DAC_Output(int output)
igor_v 0:8ad47e2b6f00 173 {
igor_v 0:8ad47e2b6f00 174 LPC_DAC->CR = (output<<6);
igor_v 0:8ad47e2b6f00 175 return;
igor_v 0:8ad47e2b6f00 176 }
igor_v 0:8ad47e2b6f00 177 /******************************************************************************
igor_v 0:8ad47e2b6f00 178 ** Function name: G_Photo_Init
igor_v 0:8ad47e2b6f00 179 **
igor_v 0:8ad47e2b6f00 180 ** Descriptions: Initialization of exchange with digital potentiometers
igor_v 0:8ad47e2b6f00 181 **
igor_v 0:8ad47e2b6f00 182 ** parameters: None
igor_v 0:8ad47e2b6f00 183 ** Returned value: None
igor_v 0:8ad47e2b6f00 184 **
igor_v 0:8ad47e2b6f00 185 ******************************************************************************/
igor_v 0:8ad47e2b6f00 186 void G_Photo_Init(void )
igor_v 0:8ad47e2b6f00 187 {
igor_v 0:8ad47e2b6f00 188 LPC_SC->PCONP |= (1 << 19);//��������� ���������� I2C.
igor_v 0:8ad47e2b6f00 189
igor_v 0:8ad47e2b6f00 190 /* set PIO0.27 and PIO0.28 to I2C0 SDA and SCK */
igor_v 0:8ad47e2b6f00 191 /* function to 01 on both SDA and SCK. */
igor_v 0:8ad47e2b6f00 192 LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA.
igor_v 0:8ad47e2b6f00 193 LPC_PINCON->PINSEL1 |= 0x01400000; //P0.28 - SCK.
igor_v 0:8ad47e2b6f00 194
igor_v 0:8ad47e2b6f00 195 // ������������� ���� ���� ����������
igor_v 0:8ad47e2b6f00 196 /*����� ������ ����� ���������� I2C ������ ���������� I2C */
igor_v 0:8ad47e2b6f00 197 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC | I2CONCLR_I2ENC; // ��������� ���������������� � ����� �������
igor_v 0:8ad47e2b6f00 198
igor_v 0:8ad47e2b6f00 199 /*--- Reset registers ---*/
igor_v 0:8ad47e2b6f00 200 LPC_I2C0->SCLL = I2SCLL_SCLL; // - ������� scl low time period
igor_v 0:8ad47e2b6f00 201 LPC_I2C0->SCLH = I2SCLH_SCLH; // - ������� scl high time period
igor_v 0:8ad47e2b6f00 202
igor_v 0:8ad47e2b6f00 203 I2CMasterBuffer[0] = A_ADDRESS; //���� ������������� ������ �
igor_v 0:8ad47e2b6f00 204 I2CMasterBuffer[1] = WRITE_CMD; //������
igor_v 0:8ad47e2b6f00 205 I2CMasterBuffer[3] = B_ADDRESS; //���� ������������� ������ �
igor_v 0:8ad47e2b6f00 206 I2CMasterBuffer[4] = WRITE_CMD; //������
igor_v 0:8ad47e2b6f00 207
igor_v 0:8ad47e2b6f00 208 LPC_I2C0->CONSET = I2CONSET_I2EN; //��������� ���������� I2C.
igor_v 0:8ad47e2b6f00 209
igor_v 0:8ad47e2b6f00 210 }
igor_v 0:8ad47e2b6f00 211 /******************************************************************************
igor_v 0:8ad47e2b6f00 212 ** Function name: DAC_ADC_Exchange_Init
igor_v 0:8ad47e2b6f00 213 **
igor_v 0:8ad47e2b6f00 214 ** Descriptions: Initialization of data exchange with DACs and ADCs
igor_v 0:8ad47e2b6f00 215 **
igor_v 0:8ad47e2b6f00 216 ** parameters: None
igor_v 0:8ad47e2b6f00 217 ** Returned value: None
igor_v 0:8ad47e2b6f00 218 **
igor_v 0:8ad47e2b6f00 219 ******************************************************************************/
igor_v 0:8ad47e2b6f00 220 void DAC_ADC_Exchange_Init()
igor_v 0:8ad47e2b6f00 221 {
igor_v 0:8ad47e2b6f00 222
igor_v 0:8ad47e2b6f00 223 int Dummy; // ������������� ������� ��� ������� ������ ������.
igor_v 0:8ad47e2b6f00 224 Dummy = Dummy;
igor_v 0:8ad47e2b6f00 225
igor_v 0:8ad47e2b6f00 226 /* Enable AHB clock to the SSP0, SSP1 */
igor_v 0:8ad47e2b6f00 227 LPC_SC->PCONP |= (0x1<<21); // ��������� SSP0.
igor_v 0:8ad47e2b6f00 228 // LPC_SC->PCONP |= (0x1<<10);
igor_v 0:8ad47e2b6f00 229
igor_v 0:8ad47e2b6f00 230 /* ����� ������� ��� ��������� ���������� �� ��������� � ��������� �������� �� 4 */
igor_v 0:8ad47e2b6f00 231 LPC_SC->PCLKSEL1 &= ~(0x3<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 0:8ad47e2b6f00 232 LPC_SC->PCLKSEL1 |= (0x0<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 0:8ad47e2b6f00 233 // LPC_SC->PCLKSEL0 &= ~(0x3<<20);
igor_v 0:8ad47e2b6f00 234
igor_v 0:8ad47e2b6f00 235 // P0.15~0.18 as SSP0
igor_v 0:8ad47e2b6f00 236 LPC_PINCON->PINSEL0 &= ~(0x3UL<<30); //��������� � 0.15
igor_v 0:8ad47e2b6f00 237 LPC_PINCON->PINSEL0 |= (0x2UL<<30); //��� (???? SCK 0 ???). ������� ��� �������������� Master - slave
igor_v 0:8ad47e2b6f00 238
igor_v 0:8ad47e2b6f00 239 LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // ����������� � 0.17 � � 0.18
igor_v 0:8ad47e2b6f00 240 LPC_PINCON->PINSEL1 |= ((0x2<<2)|(0x2<<4)); // ��� MISO0 � MOSI0
igor_v 0:8ad47e2b6f00 241
igor_v 0:8ad47e2b6f00 242 LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 243 LPC_PINCON->PINMODE0 |= (0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 244
igor_v 0:8ad47e2b6f00 245 LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 246 LPC_PINCON->PINMODE1 |= ((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 247
igor_v 0:8ad47e2b6f00 248 /* P0.6~0.9 as SSP1 */
igor_v 0:8ad47e2b6f00 249 /* LPC_PINCON->PINSEL0 &= ~((0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<18));
igor_v 0:8ad47e2b6f00 250 LPC_PINCON->PINSEL0 |= ((0x2<<12)|(0x2<<14)|(0x2<<16)|(0x2<<18));
igor_v 0:8ad47e2b6f00 251 LPC_PINCON->PINMODE0 &= ~((0x3<<16)|(0x3<<12)|(0x3<<14)|(0x3<<18));
igor_v 0:8ad47e2b6f00 252 LPC_PINCON->PINMODE0 |= ((0x3<<16)|(0x3<<14)|(0x3<<18)); */
igor_v 0:8ad47e2b6f00 253
igor_v 0:8ad47e2b6f00 254 /* Set DSS data to 16-bit, Frame format TI, SCR is 2 */
igor_v 0:8ad47e2b6f00 255 LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-������������ DSS(Data sise select) � 16-������ ������, (3<<8 scr - ����� �������),
igor_v 0:8ad47e2b6f00 256 // ������ ������� ����� ������������ ����� �������, ������������ �������� � ������� ���������� ��������� �������
igor_v 0:8ad47e2b6f00 257 // ������ ����� TI.
igor_v 0:8ad47e2b6f00 258 // LPC_SSP1->CR0 = 0x0207;
igor_v 0:8ad47e2b6f00 259
igor_v 0:8ad47e2b6f00 260 /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */
igor_v 0:8ad47e2b6f00 261 LPC_SSP0->CPSR = 0x2; // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz
igor_v 0:8ad47e2b6f00 262 // LPC_SSP1->CPSR = 0x2;
igor_v 0:8ad47e2b6f00 263
igor_v 0:8ad47e2b6f00 264 /*SSP enable, master mode */
igor_v 0:8ad47e2b6f00 265 LPC_SSP0->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 266 // LPC_SSP1->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 267
igor_v 0:8ad47e2b6f00 268 while (LPC_SSP0->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 269 // while (LPC_SSP1->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 270
igor_v 0:8ad47e2b6f00 271 while (LPC_SSP0->SR & RX_SSP_notEMPT) /* clear the RxFIFO */
igor_v 0:8ad47e2b6f00 272 Dummy = LPC_SSP0->DR;
igor_v 0:8ad47e2b6f00 273 //all pins after reset is in GPIO mode, so CS pins needn't to configure
igor_v 0:8ad47e2b6f00 274 LPC_GPIO0->FIODIR |= ADC; // P0.16 defined as CS for ADC
igor_v 0:8ad47e2b6f00 275 LPC_GPIO0->FIOSET |= ADC; // set CS for ADC
igor_v 0:8ad47e2b6f00 276
igor_v 0:8ad47e2b6f00 277 LPC_GPIO0->FIODIR |= DAC; // P defined as CS for DAC
igor_v 0:8ad47e2b6f00 278 LPC_GPIO0->FIOCLR |= DAC; // set CS for DAC
igor_v 0:8ad47e2b6f00 279 /* while (LPC_SSP1->SR & RX_SSP_notEMPT)
igor_v 0:8ad47e2b6f00 280 Dummy = LPC_SSP1->DR;*/ /* clear the RxFIFO */
igor_v 0:8ad47e2b6f00 281 }
igor_v 0:8ad47e2b6f00 282 /*****************************************************************************
igor_v 0:8ad47e2b6f00 283 ** Function name: DACInit
igor_v 0:8ad47e2b6f00 284 **
igor_v 0:8ad47e2b6f00 285 ** Descriptions: initialize DAC channel
igor_v 0:8ad47e2b6f00 286 **
igor_v 0:8ad47e2b6f00 287 ** parameters: None
igor_v 0:8ad47e2b6f00 288 ** Returned value: None
igor_v 0:8ad47e2b6f00 289 **
igor_v 0:8ad47e2b6f00 290 *****************************************************************************/
igor_v 0:8ad47e2b6f00 291 void DACInit( void )
igor_v 0:8ad47e2b6f00 292 {
igor_v 0:8ad47e2b6f00 293 /* setup the related pin to DAC output */
igor_v 0:8ad47e2b6f00 294 LPC_PINCON->PINSEL1 |= 0x00200000; /* ���������� p0.26 ��� ����� ��� */
igor_v 0:8ad47e2b6f00 295 // LPC_GPIO0->FIODIR |= (1<<26);
igor_v 0:8ad47e2b6f00 296 LPC_DAC->CNTVAL = 0; // ������� ���������
igor_v 0:8ad47e2b6f00 297 LPC_DAC->CTRL = 0; // ��� ���
igor_v 0:8ad47e2b6f00 298 return;
igor_v 0:8ad47e2b6f00 299 }
igor_v 0:8ad47e2b6f00 300 /******************************************************************************
igor_v 0:8ad47e2b6f00 301 ** Function name: Out_G_photo
igor_v 0:8ad47e2b6f00 302 **
igor_v 0:8ad47e2b6f00 303 ** Descriptions: Start of potentiometer data writing process
igor_v 0:8ad47e2b6f00 304 **
igor_v 0:8ad47e2b6f00 305 ** parameters: pointer to gain factors
igor_v 0:8ad47e2b6f00 306 ** Returned value: None
igor_v 0:8ad47e2b6f00 307 **
igor_v 0:8ad47e2b6f00 308 ******************************************************************************/
igor_v 0:8ad47e2b6f00 309 void Out_G_photo(uint32_t Ph_A, uint32_t Ph_B)
igor_v 0:8ad47e2b6f00 310 {
igor_v 0:8ad47e2b6f00 311 I2CMasterBuffer[2] = Ph_A;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������)
igor_v 0:8ad47e2b6f00 312 I2CMasterBuffer[5] = Ph_B;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������)
igor_v 0:8ad47e2b6f00 313
igor_v 0:8ad47e2b6f00 314 LPC_I2C0->CONSET = I2CONSET_STA; // ���������� ����� ����.
igor_v 0:8ad47e2b6f00 315 I2CMasterState = I2C_BUSY; // ���������� ���� ������� ����.
igor_v 0:8ad47e2b6f00 316 }
igor_v 0:8ad47e2b6f00 317