Dmitry Kovalev / Mbed 2 deprecated LG2

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Fork of LG by igor Apu

InputOutput.c@2:2d0b80ed9216, 2016-01-31 (annotated)

Committer:
igor_v
Date:
Sun Jan 31 05:30:23 2016 +0000
Revision:
2:2d0b80ed9216
Parent:
1:f2adcae3d304
Child:
21:bc8c1cec3da6
fist compil;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
igor_v 1:f2adcae3d304 1
igor_v 1:f2adcae3d304 2 #include "Global.h"
igor_v 1:f2adcae3d304 3
igor_v 2:2d0b80ed9216 4 INPUT Input;
igor_v 2:2d0b80ed9216 5 OUTPUT Output;
igor_v 0:8ad47e2b6f00 6
igor_v 0:8ad47e2b6f00 7 volatile uint32_t I2CMasterState = I2C_IDLE;
igor_v 0:8ad47e2b6f00 8 volatile uint32_t I2CMasterBuffer[I2C_WRITELENGTH];
igor_v 0:8ad47e2b6f00 9
igor_v 2:2d0b80ed9216 10 int ExchangeErr = 0;
igor_v 0:8ad47e2b6f00 11 //----------------------temp---------------------
igor_v 0:8ad47e2b6f00 12 extern char test;
igor_v 0:8ad47e2b6f00 13 /******************************************************************************
igor_v 0:8ad47e2b6f00 14 ** Function name: G_Photo_Exchange
igor_v 0:8ad47e2b6f00 15 **
igor_v 2:2d0b80ed9216 16 ** Descriptions: Driver for I2C exchange
igor_v 0:8ad47e2b6f00 17 **
igor_v 0:8ad47e2b6f00 18 ** parameters: None
igor_v 0:8ad47e2b6f00 19 ** Returned value: None
igor_v 2:2d0b80ed9216 20 **
igor_v 0:8ad47e2b6f00 21 ******************************************************************************/
igor_v 0:8ad47e2b6f00 22
igor_v 2:2d0b80ed9216 23 void G_Photo_Exchange(void)
igor_v 0:8ad47e2b6f00 24 {
igor_v 2:2d0b80ed9216 25 uint32_t StatValue;
igor_v 2:2d0b80ed9216 26 static uint32_t WrIndex;
igor_v 2:2d0b80ed9216 27 static int32_t time_out = TIMEOUT;
igor_v 0:8ad47e2b6f00 28
igor_v 2:2d0b80ed9216 29 if (I2CMasterState)
igor_v 2:2d0b80ed9216 30 return; //e.transmitting is not active, go away
igor_v 0:8ad47e2b6f00 31
igor_v 2:2d0b80ed9216 32 if (--time_out < 0) { //e. valid time period elapsed, go away
igor_v 2:2d0b80ed9216 33 time_out = TIMEOUT;
igor_v 2:2d0b80ed9216 34 I2CMasterState = I2C_IDLE; //e. timer elapsed, go away
igor_v 2:2d0b80ed9216 35 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 2:2d0b80ed9216 36 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC;
igor_v 2:2d0b80ed9216 37 return;
igor_v 2:2d0b80ed9216 38 } else if (!(LPC_I2C0->CONSET & I2CONSET_SI)) //e. state of I2C bus has not been changed
igor_v 2:2d0b80ed9216 39 return;
igor_v 0:8ad47e2b6f00 40
igor_v 2:2d0b80ed9216 41 StatValue = LPC_I2C0->STAT;
igor_v 2:2d0b80ed9216 42
igor_v 2:2d0b80ed9216 43 switch ( StatValue ) {
igor_v 2:2d0b80ed9216 44 case 0x08: // A Start condition is issued (write data for the first potentiometer)
igor_v 2:2d0b80ed9216 45 WrIndex = 0;
igor_v 2:2d0b80ed9216 46 time_out = TIMEOUT; //e. enable countdown
igor_v 2:2d0b80ed9216 47 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 2:2d0b80ed9216 48 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 2:2d0b80ed9216 49 break;
igor_v 0:8ad47e2b6f00 50
igor_v 2:2d0b80ed9216 51 case 0x10: // A repeated started is issued (write data for the second potentiometer)
igor_v 2:2d0b80ed9216 52 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 2:2d0b80ed9216 53 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 2:2d0b80ed9216 54 break;
igor_v 0:8ad47e2b6f00 55
igor_v 2:2d0b80ed9216 56 case 0x18: //e. Regardless, it's a ACK after slave address reading
igor_v 2:2d0b80ed9216 57 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 2:2d0b80ed9216 58 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 2:2d0b80ed9216 59 break;
igor_v 0:8ad47e2b6f00 60
igor_v 2:2d0b80ed9216 61 case 0x28: //e. Regardless it's a ACK after data byte
igor_v 2:2d0b80ed9216 62 if (WrIndex == I2C_WRITELENGTH) { //e. we have transmitted the data for the B potentiometer
igor_v 2:2d0b80ed9216 63 I2CMasterState = I2C_IDLE;
igor_v 2:2d0b80ed9216 64 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 2:2d0b80ed9216 65 Output.Str.Cnt_Dif = 300;
igor_v 2:2d0b80ed9216 66 } else if (WrIndex == 3) {
igor_v 2:2d0b80ed9216 67 LPC_I2C0->CONSET = I2CONSET_STA;
igor_v 2:2d0b80ed9216 68 Output.Str.Cnt_Dif = 200;
igor_v 2:2d0b80ed9216 69 } else {
igor_v 2:2d0b80ed9216 70 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 2:2d0b80ed9216 71 Output.Str.Cnt_Dif = 100;
igor_v 2:2d0b80ed9216 72 }
igor_v 2:2d0b80ed9216 73 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 2:2d0b80ed9216 74 break;
igor_v 0:8ad47e2b6f00 75
igor_v 2:2d0b80ed9216 76 case 0x20: //e. no aknowledgement after address transmitting
igor_v 2:2d0b80ed9216 77 case 0x30: //e. no aknowledgement after data block transmitting
igor_v 2:2d0b80ed9216 78 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 2:2d0b80ed9216 79 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC);
igor_v 2:2d0b80ed9216 80 I2CMasterState = I2C_IDLE; //e. fix new state
igor_v 2:2d0b80ed9216 81 break;
igor_v 2:2d0b80ed9216 82 }
igor_v 2:2d0b80ed9216 83 return;
igor_v 0:8ad47e2b6f00 84 }
igor_v 0:8ad47e2b6f00 85 /******************************************************************************
igor_v 0:8ad47e2b6f00 86 ** Function name: DAC_ADC_Exchange
igor_v 0:8ad47e2b6f00 87 **
igor_v 2:2d0b80ed9216 88 ** Descriptions: Loading data to DACs and initialization of ADC reading
igor_v 0:8ad47e2b6f00 89 **
igor_v 0:8ad47e2b6f00 90 ** parameters: None
igor_v 0:8ad47e2b6f00 91 ** Returned value: None
igor_v 2:2d0b80ed9216 92 **
igor_v 0:8ad47e2b6f00 93 ******************************************************************************/
igor_v 0:8ad47e2b6f00 94 void DAC_ADC_Exchange()
igor_v 0:8ad47e2b6f00 95 {
igor_v 2:2d0b80ed9216 96 //-------------------------loading data from ADC to buffer---------------------------------------
igor_v 0:8ad47e2b6f00 97 //int x;
igor_v 2:2d0b80ed9216 98 ExchangeErr &= ~ADC_ERR_MSK; //e. �������� ���� ������
igor_v 2:2d0b80ed9216 99 if (LPC_SSP0->SR & SSP_BUSY) { //e. ���� ����� ����������� �� �����
igor_v 2:2d0b80ed9216 100 ExchangeErr |= ADC_ERR_MSK; //e. ���������� ���� ������
igor_v 2:2d0b80ed9216 101 } else {
igor_v 2:2d0b80ed9216 102 LPC_SSP0->DR = 0x8001; //�������� 0x8001 � ������� ��������.
igor_v 2:2d0b80ed9216 103 if (Sys_Clock & 1) { //���� �������� ���� ��
igor_v 2:2d0b80ed9216 104 LPC_SSP0->DR = WRITE_DAC0; //e.������� ��� ���_0 ����������.
igor_v 2:2d0b80ed9216 105 LPC_SSP0->DR = (-Output.ArrayOut[3]+32767); //e. �������� 12 ���
igor_v 2:2d0b80ed9216 106 } else { //���� ���� ������.
igor_v 2:2d0b80ed9216 107 LPC_SSP0->DR = WRITE_DAC1 ; //e.������� ��� ���_1 ����������.
igor_v 2:2d0b80ed9216 108 LPC_SSP0->DR = (Output.ArrayOut[0]<<1) & 0xFFF0; //e. �������� 12 ���
igor_v 0:8ad47e2b6f00 109 }
igor_v 2:2d0b80ed9216 110 }
igor_v 0:8ad47e2b6f00 111 }
igor_v 0:8ad47e2b6f00 112 /******************************************************************************
igor_v 0:8ad47e2b6f00 113 ** Function name: ADC_Input
igor_v 0:8ad47e2b6f00 114 **
igor_v 2:2d0b80ed9216 115 ** Descriptions: Reading data from ADC
igor_v 0:8ad47e2b6f00 116 **
igor_v 0:8ad47e2b6f00 117 ** parameters: None
igor_v 0:8ad47e2b6f00 118 ** Returned value: None
igor_v 2:2d0b80ed9216 119 **
igor_v 0:8ad47e2b6f00 120 ******************************************************************************/
igor_v 0:8ad47e2b6f00 121 void ADC_Input()
igor_v 2:2d0b80ed9216 122 {
igor_v 2:2d0b80ed9216 123 uint32_t Dummy;
igor_v 0:8ad47e2b6f00 124
igor_v 2:2d0b80ed9216 125 //---------------------read data from ADC buffer---------------------------------------------
igor_v 2:2d0b80ed9216 126 Dummy = Dummy;
igor_v 2:2d0b80ed9216 127 ExchangeErr &= ~ADC_ERR_MSK;
igor_v 2:2d0b80ed9216 128
igor_v 2:2d0b80ed9216 129 if (LPC_SSP0->SR & SSP_BUSY) { //���� ����� ���� �� ������(�������� ������)
igor_v 2:2d0b80ed9216 130 ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������
igor_v 0:8ad47e2b6f00 131
igor_v 2:2d0b80ed9216 132 if (!(LPC_SSP0->SR & TX_SSP_EMPT)) //����� �������� �� ����.
igor_v 2:2d0b80ed9216 133 ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������
igor_v 2:2d0b80ed9216 134 } else { //����� �������� ��������� �����.
igor_v 2:2d0b80ed9216 135 Input.ArrayIn[0] = LPC_SSP0->DR; //������Thermo2
igor_v 2:2d0b80ed9216 136 Input.ArrayIn[1] = LPC_SSP0->DR; //������ Thermo1
igor_v 2:2d0b80ed9216 137 Input.ArrayIn[2] = LPC_SSP0->DR; //������ HF_out
igor_v 0:8ad47e2b6f00 138
igor_v 2:2d0b80ed9216 139 while (LPC_SSP0->SR & RX_SSP_notEMPT) //���� ����� SPI �� ����.
igor_v 2:2d0b80ed9216 140 Dummy = LPC_SSP0->DR; //�������� �����.
igor_v 2:2d0b80ed9216 141 }
igor_v 2:2d0b80ed9216 142
igor_v 0:8ad47e2b6f00 143
igor_v 0:8ad47e2b6f00 144 }
igor_v 0:8ad47e2b6f00 145 /*****************************************************************************
igor_v 0:8ad47e2b6f00 146 ** Function name: DAC_Output
igor_v 0:8ad47e2b6f00 147 **
igor_v 0:8ad47e2b6f00 148 ** Descriptions: Output data to intrnal DAC
igor_v 0:8ad47e2b6f00 149 **
igor_v 0:8ad47e2b6f00 150 ** parameters: output - code for output
igor_v 0:8ad47e2b6f00 151 ** Returned value: None
igor_v 2:2d0b80ed9216 152 **
igor_v 0:8ad47e2b6f00 153 *****************************************************************************/
igor_v 0:8ad47e2b6f00 154 void DAC_Output(int output)
igor_v 0:8ad47e2b6f00 155 {
igor_v 2:2d0b80ed9216 156 LPC_DAC->CR = (output<<6);
igor_v 2:2d0b80ed9216 157 return;
igor_v 0:8ad47e2b6f00 158 }
igor_v 0:8ad47e2b6f00 159 /******************************************************************************
igor_v 0:8ad47e2b6f00 160 ** Function name: G_Photo_Init
igor_v 0:8ad47e2b6f00 161 **
igor_v 0:8ad47e2b6f00 162 ** Descriptions: Initialization of exchange with digital potentiometers
igor_v 0:8ad47e2b6f00 163 **
igor_v 0:8ad47e2b6f00 164 ** parameters: None
igor_v 0:8ad47e2b6f00 165 ** Returned value: None
igor_v 2:2d0b80ed9216 166 **
igor_v 0:8ad47e2b6f00 167 ******************************************************************************/
igor_v 2:2d0b80ed9216 168 void G_Photo_Init(void )
igor_v 0:8ad47e2b6f00 169 {
igor_v 2:2d0b80ed9216 170 LPC_SC->PCONP |= (1 << 19);//��������� ���������� I2C.
igor_v 0:8ad47e2b6f00 171
igor_v 2:2d0b80ed9216 172 /* set PIO0.27 and PIO0.28 to I2C0 SDA and SCK */
igor_v 2:2d0b80ed9216 173 /* function to 01 on both SDA and SCK. */
igor_v 2:2d0b80ed9216 174 LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA.
igor_v 2:2d0b80ed9216 175 LPC_PINCON->PINSEL1 |= 0x01400000; //P0.28 - SCK.
igor_v 0:8ad47e2b6f00 176
igor_v 2:2d0b80ed9216 177 // ������������� ���� ���� ����������
igor_v 2:2d0b80ed9216 178 /*����� ������ ����� ���������� I2C ������ ���������� I2C */
igor_v 2:2d0b80ed9216 179 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC | I2CONCLR_I2ENC; // ��������� ���������������� � ����� �������
igor_v 0:8ad47e2b6f00 180
igor_v 2:2d0b80ed9216 181 /*--- Reset registers ---*/
igor_v 2:2d0b80ed9216 182 LPC_I2C0->SCLL = I2SCLL_SCLL; // - ������� scl low time period
igor_v 2:2d0b80ed9216 183 LPC_I2C0->SCLH = I2SCLH_SCLH; // - ������� scl high time period
igor_v 0:8ad47e2b6f00 184
igor_v 2:2d0b80ed9216 185 I2CMasterBuffer[0] = A_ADDRESS; //���� ������������� ������ �
igor_v 2:2d0b80ed9216 186 I2CMasterBuffer[1] = WRITE_CMD; //������
igor_v 2:2d0b80ed9216 187 I2CMasterBuffer[3] = B_ADDRESS; //���� ������������� ������ �
igor_v 2:2d0b80ed9216 188 I2CMasterBuffer[4] = WRITE_CMD; //������
igor_v 0:8ad47e2b6f00 189
igor_v 2:2d0b80ed9216 190 LPC_I2C0->CONSET = I2CONSET_I2EN; //��������� ���������� I2C.
igor_v 0:8ad47e2b6f00 191
igor_v 0:8ad47e2b6f00 192 }
igor_v 0:8ad47e2b6f00 193 /******************************************************************************
igor_v 0:8ad47e2b6f00 194 ** Function name: DAC_ADC_Exchange_Init
igor_v 0:8ad47e2b6f00 195 **
igor_v 0:8ad47e2b6f00 196 ** Descriptions: Initialization of data exchange with DACs and ADCs
igor_v 0:8ad47e2b6f00 197 **
igor_v 0:8ad47e2b6f00 198 ** parameters: None
igor_v 0:8ad47e2b6f00 199 ** Returned value: None
igor_v 2:2d0b80ed9216 200 **
igor_v 0:8ad47e2b6f00 201 ******************************************************************************/
igor_v 0:8ad47e2b6f00 202 void DAC_ADC_Exchange_Init()
igor_v 0:8ad47e2b6f00 203 {
igor_v 0:8ad47e2b6f00 204
igor_v 2:2d0b80ed9216 205 int Dummy; // ������������� ������� ��� ������� ������ ������.
igor_v 2:2d0b80ed9216 206 Dummy = Dummy;
igor_v 2:2d0b80ed9216 207
igor_v 2:2d0b80ed9216 208 /* Enable AHB clock to the SSP0, SSP1 */
igor_v 2:2d0b80ed9216 209 LPC_SC->PCONP |= (0x1<<21); // ��������� SSP0.
igor_v 0:8ad47e2b6f00 210 // LPC_SC->PCONP |= (0x1<<10);
igor_v 0:8ad47e2b6f00 211
igor_v 2:2d0b80ed9216 212 /* ����� ������� ��� ��������� ���������� �� ��������� � ��������� �������� �� 4 */
igor_v 2:2d0b80ed9216 213 LPC_SC->PCLKSEL1 &= ~(0x3<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 2:2d0b80ed9216 214 LPC_SC->PCLKSEL1 |= (0x0<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 2:2d0b80ed9216 215 // LPC_SC->PCLKSEL0 &= ~(0x3<<20);
igor_v 0:8ad47e2b6f00 216
igor_v 2:2d0b80ed9216 217 // P0.15~0.18 as SSP0
igor_v 2:2d0b80ed9216 218 LPC_PINCON->PINSEL0 &= ~(0x3UL<<30); //��������� � 0.15
igor_v 2:2d0b80ed9216 219 LPC_PINCON->PINSEL0 |= (0x2UL<<30); //��� (???? SCK 0 ???). ������� ��� �������������� Master - slave
igor_v 0:8ad47e2b6f00 220
igor_v 2:2d0b80ed9216 221 LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // ����������� � 0.17 � � 0.18
igor_v 2:2d0b80ed9216 222 LPC_PINCON->PINSEL1 |= ((0x2<<2)|(0x2<<4)); // ��� MISO0 � MOSI0
igor_v 0:8ad47e2b6f00 223
igor_v 2:2d0b80ed9216 224 LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled
igor_v 2:2d0b80ed9216 225 LPC_PINCON->PINMODE0 |= (0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 226
igor_v 2:2d0b80ed9216 227 LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled
igor_v 2:2d0b80ed9216 228 LPC_PINCON->PINMODE1 |= ((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 229
igor_v 2:2d0b80ed9216 230 /* P0.6~0.9 as SSP1 */
igor_v 2:2d0b80ed9216 231 /* LPC_PINCON->PINSEL0 &= ~((0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<18));
igor_v 2:2d0b80ed9216 232 LPC_PINCON->PINSEL0 |= ((0x2<<12)|(0x2<<14)|(0x2<<16)|(0x2<<18));
igor_v 2:2d0b80ed9216 233 LPC_PINCON->PINMODE0 &= ~((0x3<<16)|(0x3<<12)|(0x3<<14)|(0x3<<18));
igor_v 2:2d0b80ed9216 234 LPC_PINCON->PINMODE0 |= ((0x3<<16)|(0x3<<14)|(0x3<<18)); */
igor_v 0:8ad47e2b6f00 235
igor_v 2:2d0b80ed9216 236 /* Set DSS data to 16-bit, Frame format TI, SCR is 2 */
igor_v 2:2d0b80ed9216 237 LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-������������ DSS(Data sise select) � 16-������ ������, (3<<8 scr - ����� �������),
igor_v 2:2d0b80ed9216 238 // ������ ������� ����� ������������ ����� �������, ������������ �������� � ������� ���������� ��������� �������
igor_v 2:2d0b80ed9216 239 // ������ ����� TI.
igor_v 2:2d0b80ed9216 240 // LPC_SSP1->CR0 = 0x0207;
igor_v 0:8ad47e2b6f00 241
igor_v 2:2d0b80ed9216 242 /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */
igor_v 2:2d0b80ed9216 243 LPC_SSP0->CPSR = 0x2; // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz
igor_v 2:2d0b80ed9216 244 // LPC_SSP1->CPSR = 0x2;
igor_v 0:8ad47e2b6f00 245
igor_v 2:2d0b80ed9216 246 /*SSP enable, master mode */
igor_v 2:2d0b80ed9216 247 LPC_SSP0->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 248 // LPC_SSP1->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 249
igor_v 2:2d0b80ed9216 250 while (LPC_SSP0->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 251 // while (LPC_SSP1->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 252
igor_v 2:2d0b80ed9216 253 while (LPC_SSP0->SR & RX_SSP_notEMPT) /* clear the RxFIFO */
igor_v 2:2d0b80ed9216 254 Dummy = LPC_SSP0->DR;
igor_v 2:2d0b80ed9216 255 //all pins after reset is in GPIO mode, so CS pins needn't to configure
igor_v 2:2d0b80ed9216 256 LPC_GPIO0->FIODIR |= ADC; // P0.16 defined as CS for ADC
igor_v 2:2d0b80ed9216 257 LPC_GPIO0->FIOSET |= ADC; // set CS for ADC
igor_v 0:8ad47e2b6f00 258
igor_v 2:2d0b80ed9216 259 LPC_GPIO0->FIODIR |= DAC; // P defined as CS for DAC
igor_v 2:2d0b80ed9216 260 LPC_GPIO0->FIOCLR |= DAC; // set CS for DAC
igor_v 2:2d0b80ed9216 261 /* while (LPC_SSP1->SR & RX_SSP_notEMPT)
igor_v 2:2d0b80ed9216 262 Dummy = LPC_SSP1->DR;*/ /* clear the RxFIFO */
igor_v 0:8ad47e2b6f00 263 }
igor_v 0:8ad47e2b6f00 264 /*****************************************************************************
igor_v 0:8ad47e2b6f00 265 ** Function name: DACInit
igor_v 0:8ad47e2b6f00 266 **
igor_v 0:8ad47e2b6f00 267 ** Descriptions: initialize DAC channel
igor_v 0:8ad47e2b6f00 268 **
igor_v 0:8ad47e2b6f00 269 ** parameters: None
igor_v 0:8ad47e2b6f00 270 ** Returned value: None
igor_v 2:2d0b80ed9216 271 **
igor_v 0:8ad47e2b6f00 272 *****************************************************************************/
igor_v 0:8ad47e2b6f00 273 void DACInit( void )
igor_v 0:8ad47e2b6f00 274 {
igor_v 2:2d0b80ed9216 275 /* setup the related pin to DAC output */
igor_v 2:2d0b80ed9216 276 LPC_PINCON->PINSEL1 |= 0x00200000; /* ���������� p0.26 ��� ����� ��� */
igor_v 2:2d0b80ed9216 277 // LPC_GPIO0->FIODIR |= (1<<26);
igor_v 2:2d0b80ed9216 278 LPC_DAC->CNTVAL = 0; // ������� ���������
igor_v 2:2d0b80ed9216 279 LPC_DAC->CTRL = 0; // ��� ���
igor_v 2:2d0b80ed9216 280 return;
igor_v 0:8ad47e2b6f00 281 }
igor_v 0:8ad47e2b6f00 282 /******************************************************************************
igor_v 0:8ad47e2b6f00 283 ** Function name: Out_G_photo
igor_v 0:8ad47e2b6f00 284 **
igor_v 0:8ad47e2b6f00 285 ** Descriptions: Start of potentiometer data writing process
igor_v 0:8ad47e2b6f00 286 **
igor_v 0:8ad47e2b6f00 287 ** parameters: pointer to gain factors
igor_v 0:8ad47e2b6f00 288 ** Returned value: None
igor_v 2:2d0b80ed9216 289 **
igor_v 0:8ad47e2b6f00 290 ******************************************************************************/
igor_v 0:8ad47e2b6f00 291 void Out_G_photo(uint32_t Ph_A, uint32_t Ph_B)
igor_v 0:8ad47e2b6f00 292 {
igor_v 2:2d0b80ed9216 293 I2CMasterBuffer[2] = Ph_A;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������)
igor_v 2:2d0b80ed9216 294 I2CMasterBuffer[5] = Ph_B;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������)
igor_v 0:8ad47e2b6f00 295
igor_v 2:2d0b80ed9216 296 LPC_I2C0->CONSET = I2CONSET_STA; // ���������� ����� ����.
igor_v 2:2d0b80ed9216 297 I2CMasterState = I2C_BUSY; // ���������� ���� ������� ����.
igor_v 2:2d0b80ed9216 298 }
igor_v 0:8ad47e2b6f00 299