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Diff: InputOutput.c
- Revision:
- 2:2d0b80ed9216
- Parent:
- 1:f2adcae3d304
- Child:
- 21:bc8c1cec3da6
--- a/InputOutput.c Sat Jan 30 13:53:19 2016 +0000 +++ b/InputOutput.c Sun Jan 31 05:30:23 2016 +0000 @@ -1,161 +1,145 @@ #include "Global.h" -//INPUT Input; -//OUTPUT Output; +INPUT Input; +OUTPUT Output; volatile uint32_t I2CMasterState = I2C_IDLE; volatile uint32_t I2CMasterBuffer[I2C_WRITELENGTH]; -int ExchangeErr = 0; +int ExchangeErr = 0; //----------------------temp--------------------- extern char test; /****************************************************************************** ** Function name: G_Photo_Exchange ** -** Descriptions: Driver for I2C exchange +** Descriptions: Driver for I2C exchange ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ -void G_Photo_Exchange(void) +void G_Photo_Exchange(void) { - uint32_t StatValue; - static uint32_t WrIndex; - static int32_t time_out = TIMEOUT; + uint32_t StatValue; + static uint32_t WrIndex; + static int32_t time_out = TIMEOUT; - if (I2CMasterState) - return; //e.transmitting is not active, go away + if (I2CMasterState) + return; //e.transmitting is not active, go away - if (--time_out < 0) //e. valid time period elapsed, go away - { - time_out = TIMEOUT; - I2CMasterState = I2C_IDLE; //e. timer elapsed, go away - LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag - LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC; - return; - } - else if (!(LPC_I2C0->CONSET & I2CONSET_SI)) //e. state of I2C bus has not been changed - return; + if (--time_out < 0) { //e. valid time period elapsed, go away + time_out = TIMEOUT; + I2CMasterState = I2C_IDLE; //e. timer elapsed, go away + LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag + LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC; + return; + } else if (!(LPC_I2C0->CONSET & I2CONSET_SI)) //e. state of I2C bus has not been changed + return; - StatValue = LPC_I2C0->STAT; + StatValue = LPC_I2C0->STAT; + + switch ( StatValue ) { + case 0x08: // A Start condition is issued (write data for the first potentiometer) + WrIndex = 0; + time_out = TIMEOUT; //e. enable countdown + LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address + LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit + break; - switch ( StatValue ) - { - case 0x08: // A Start condition is issued (write data for the first potentiometer) - WrIndex = 0; - time_out = TIMEOUT; //e. enable countdown - LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address - LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit - break; - - case 0x10: // A repeated started is issued (write data for the second potentiometer) - LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address - LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit - break; + case 0x10: // A repeated started is issued (write data for the second potentiometer) + LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address + LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit + break; - case 0x18: //e. Regardless, it's a ACK after slave address reading - LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte - LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit - break; + case 0x18: //e. Regardless, it's a ACK after slave address reading + LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte + LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit + break; - case 0x28: //e. Regardless it's a ACK after data byte - if (WrIndex == I2C_WRITELENGTH) //e. we have transmitted the data for the B potentiometer - { - I2CMasterState = I2C_IDLE; - LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag - Output.Str.Cnt_Dif = 300; - } - else if (WrIndex == 3) - { - LPC_I2C0->CONSET = I2CONSET_STA; - Output.Str.Cnt_Dif = 200; - } - else - { - LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte - Output.Str.Cnt_Dif = 100; - } - LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit - break; + case 0x28: //e. Regardless it's a ACK after data byte + if (WrIndex == I2C_WRITELENGTH) { //e. we have transmitted the data for the B potentiometer + I2CMasterState = I2C_IDLE; + LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag + Output.Str.Cnt_Dif = 300; + } else if (WrIndex == 3) { + LPC_I2C0->CONSET = I2CONSET_STA; + Output.Str.Cnt_Dif = 200; + } else { + LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte + Output.Str.Cnt_Dif = 100; + } + LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit + break; - case 0x20: //e. no aknowledgement after address transmitting - case 0x30: //e. no aknowledgement after data block transmitting - LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag - LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); - I2CMasterState = I2C_IDLE; //e. fix new state - break; - } - return; + case 0x20: //e. no aknowledgement after address transmitting + case 0x30: //e. no aknowledgement after data block transmitting + LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag + LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); + I2CMasterState = I2C_IDLE; //e. fix new state + break; + } + return; } /****************************************************************************** ** Function name: DAC_ADC_Exchange ** -** Descriptions: Loading data to DACs and initialization of ADC reading +** Descriptions: Loading data to DACs and initialization of ADC reading ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ void DAC_ADC_Exchange() { - //-------------------------loading data from ADC to buffer--------------------------------------- + //-------------------------loading data from ADC to buffer--------------------------------------- //int x; - ExchangeErr &= ~ADC_ERR_MSK; //e. �������� ���� ������ - if (LPC_SSP0->SR & SSP_BUSY) //e. ���� ����� ����������� �� ����� - { - ExchangeErr |= ADC_ERR_MSK; //e. ���������� ���� ������ - } - else - { - LPC_SSP0->DR = 0x8001; //�������� 0x8001 � ������� ��������. - if (Sys_Clock & 1)//���� �������� ���� �� - { - LPC_SSP0->DR = WRITE_DAC0; //e.������� ��� ���_0 ����������. - LPC_SSP0->DR = (-Output.ArrayOut[3]+32767); //e. �������� 12 ��� - } - else //���� ���� ������. - { - LPC_SSP0->DR = WRITE_DAC1 ; //e.������� ��� ���_1 ����������. - LPC_SSP0->DR = (Output.ArrayOut[0]<<1) & 0xFFF0; //e. �������� 12 ��� - } + ExchangeErr &= ~ADC_ERR_MSK; //e. �������� ���� ������ + if (LPC_SSP0->SR & SSP_BUSY) { //e. ���� ����� ����������� �� ����� + ExchangeErr |= ADC_ERR_MSK; //e. ���������� ���� ������ + } else { + LPC_SSP0->DR = 0x8001; //�������� 0x8001 � ������� ��������. + if (Sys_Clock & 1) { //���� �������� ���� �� + LPC_SSP0->DR = WRITE_DAC0; //e.������� ��� ���_0 ����������. + LPC_SSP0->DR = (-Output.ArrayOut[3]+32767); //e. �������� 12 ��� + } else { //���� ���� ������. + LPC_SSP0->DR = WRITE_DAC1 ; //e.������� ��� ���_1 ����������. + LPC_SSP0->DR = (Output.ArrayOut[0]<<1) & 0xFFF0; //e. �������� 12 ��� } + } } /****************************************************************************** ** Function name: ADC_Input ** -** Descriptions: Reading data from ADC +** Descriptions: Reading data from ADC ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ void ADC_Input() -{ - uint32_t Dummy; +{ + uint32_t Dummy; - //---------------------read data from ADC buffer--------------------------------------------- - Dummy = Dummy; - ExchangeErr &= ~ADC_ERR_MSK; + //---------------------read data from ADC buffer--------------------------------------------- + Dummy = Dummy; + ExchangeErr &= ~ADC_ERR_MSK; + + if (LPC_SSP0->SR & SSP_BUSY) { //���� ����� ���� �� ������(�������� ������) + ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������ - if (LPC_SSP0->SR & SSP_BUSY) //���� ����� ���� �� ������(�������� ������) - { ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������ - - if (!(LPC_SSP0->SR & TX_SSP_EMPT)) //����� �������� �� ����. - ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������ - } - else //����� �������� ��������� �����. - { - Input.ArrayIn[0] = LPC_SSP0->DR; //������Thermo2 - Input.ArrayIn[1] = LPC_SSP0->DR; //������ Thermo1 - Input.ArrayIn[2] = LPC_SSP0->DR; //������ HF_out + if (!(LPC_SSP0->SR & TX_SSP_EMPT)) //����� �������� �� ����. + ExchangeErr |= ADC_ERR_MSK; //���������� ���� ������ + } else { //����� �������� ��������� �����. + Input.ArrayIn[0] = LPC_SSP0->DR; //������Thermo2 + Input.ArrayIn[1] = LPC_SSP0->DR; //������ Thermo1 + Input.ArrayIn[2] = LPC_SSP0->DR; //������ HF_out - while (LPC_SSP0->SR & RX_SSP_notEMPT) //���� ����� SPI �� ����. - Dummy = LPC_SSP0->DR; //�������� �����. - } - + while (LPC_SSP0->SR & RX_SSP_notEMPT) //���� ����� SPI �� ����. + Dummy = LPC_SSP0->DR; //�������� �����. + } + } /***************************************************************************** @@ -165,12 +149,12 @@ ** ** parameters: output - code for output ** Returned value: None -** +** *****************************************************************************/ void DAC_Output(int output) { - LPC_DAC->CR = (output<<6); - return; + LPC_DAC->CR = (output<<6); + return; } /****************************************************************************** ** Function name: G_Photo_Init @@ -179,31 +163,31 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ -void G_Photo_Init(void ) +void G_Photo_Init(void ) { - LPC_SC->PCONP |= (1 << 19);//��������� ���������� I2C. + LPC_SC->PCONP |= (1 << 19);//��������� ���������� I2C. - /* set PIO0.27 and PIO0.28 to I2C0 SDA and SCK */ - /* function to 01 on both SDA and SCK. */ - LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA. - LPC_PINCON->PINSEL1 |= 0x01400000; //P0.28 - SCK. + /* set PIO0.27 and PIO0.28 to I2C0 SDA and SCK */ + /* function to 01 on both SDA and SCK. */ + LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA. + LPC_PINCON->PINSEL1 |= 0x01400000; //P0.28 - SCK. - // ������������� ���� ���� ���������� - /*����� ������ ����� ���������� I2C ������ ���������� I2C */ - LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC | I2CONCLR_I2ENC; // ��������� ���������������� � ����� ������� + // ������������� ���� ���� ���������� + /*����� ������ ����� ���������� I2C ������ ���������� I2C */ + LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC | I2CONCLR_I2ENC; // ��������� ���������������� � ����� ������� - /*--- Reset registers ---*/ - LPC_I2C0->SCLL = I2SCLL_SCLL; // - ������� scl low time period - LPC_I2C0->SCLH = I2SCLH_SCLH; // - ������� scl high time period + /*--- Reset registers ---*/ + LPC_I2C0->SCLL = I2SCLL_SCLL; // - ������� scl low time period + LPC_I2C0->SCLH = I2SCLH_SCLH; // - ������� scl high time period - I2CMasterBuffer[0] = A_ADDRESS; //���� ������������� ������ � - I2CMasterBuffer[1] = WRITE_CMD; //������ - I2CMasterBuffer[3] = B_ADDRESS; //���� ������������� ������ � - I2CMasterBuffer[4] = WRITE_CMD; //������ + I2CMasterBuffer[0] = A_ADDRESS; //���� ������������� ������ � + I2CMasterBuffer[1] = WRITE_CMD; //������ + I2CMasterBuffer[3] = B_ADDRESS; //���� ������������� ������ � + I2CMasterBuffer[4] = WRITE_CMD; //������ - LPC_I2C0->CONSET = I2CONSET_I2EN; //��������� ���������� I2C. + LPC_I2C0->CONSET = I2CONSET_I2EN; //��������� ���������� I2C. } /****************************************************************************** @@ -213,69 +197,69 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ void DAC_ADC_Exchange_Init() { - - int Dummy; // ������������� ������� ��� ������� ������ ������. - Dummy = Dummy; - /* Enable AHB clock to the SSP0, SSP1 */ - LPC_SC->PCONP |= (0x1<<21); // ��������� SSP0. + int Dummy; // ������������� ������� ��� ������� ������ ������. + Dummy = Dummy; + + /* Enable AHB clock to the SSP0, SSP1 */ + LPC_SC->PCONP |= (0x1<<21); // ��������� SSP0. // LPC_SC->PCONP |= (0x1<<10); - /* ����� ������� ��� ��������� ���������� �� ��������� � ��������� �������� �� 4 */ - LPC_SC->PCLKSEL1 &= ~(0x3<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8 - LPC_SC->PCLKSEL1 |= (0x0<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8 - // LPC_SC->PCLKSEL0 &= ~(0x3<<20); + /* ����� ������� ��� ��������� ���������� �� ��������� � ��������� �������� �� 4 */ + LPC_SC->PCLKSEL1 &= ~(0x3<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8 + LPC_SC->PCLKSEL1 |= (0x0<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8 +// LPC_SC->PCLKSEL0 &= ~(0x3<<20); - // P0.15~0.18 as SSP0 - LPC_PINCON->PINSEL0 &= ~(0x3UL<<30); //��������� � 0.15 - LPC_PINCON->PINSEL0 |= (0x2UL<<30); //��� (???? SCK 0 ???). ������� ��� �������������� Master - slave + // P0.15~0.18 as SSP0 + LPC_PINCON->PINSEL0 &= ~(0x3UL<<30); //��������� � 0.15 + LPC_PINCON->PINSEL0 |= (0x2UL<<30); //��� (???? SCK 0 ???). ������� ��� �������������� Master - slave - LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // ����������� � 0.17 � � 0.18 - LPC_PINCON->PINSEL1 |= ((0x2<<2)|(0x2<<4)); // ��� MISO0 � MOSI0 + LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // ����������� � 0.17 � � 0.18 + LPC_PINCON->PINSEL1 |= ((0x2<<2)|(0x2<<4)); // ��� MISO0 � MOSI0 - LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled - LPC_PINCON->PINMODE0 |= (0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled + LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled + LPC_PINCON->PINMODE0 |= (0x3UL<<30);// ? ������������ �� � 0.15 ������ On-Chip pull-down resistor enabled - LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled - LPC_PINCON->PINMODE1 |= ((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled + LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled + LPC_PINCON->PINMODE1 |= ((0x3<<2)|(0x3<<4));// ? ������������ �� � 0.17 � � 0.18 ������ On-Chip pull-down resistor enabled - /* P0.6~0.9 as SSP1 */ -/* LPC_PINCON->PINSEL0 &= ~((0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<18)); - LPC_PINCON->PINSEL0 |= ((0x2<<12)|(0x2<<14)|(0x2<<16)|(0x2<<18)); - LPC_PINCON->PINMODE0 &= ~((0x3<<16)|(0x3<<12)|(0x3<<14)|(0x3<<18)); - LPC_PINCON->PINMODE0 |= ((0x3<<16)|(0x3<<14)|(0x3<<18)); */ + /* P0.6~0.9 as SSP1 */ + /* LPC_PINCON->PINSEL0 &= ~((0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<18)); + LPC_PINCON->PINSEL0 |= ((0x2<<12)|(0x2<<14)|(0x2<<16)|(0x2<<18)); + LPC_PINCON->PINMODE0 &= ~((0x3<<16)|(0x3<<12)|(0x3<<14)|(0x3<<18)); + LPC_PINCON->PINMODE0 |= ((0x3<<16)|(0x3<<14)|(0x3<<18)); */ - /* Set DSS data to 16-bit, Frame format TI, SCR is 2 */ - LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-������������ DSS(Data sise select) � 16-������ ������, (3<<8 scr - ����� �������), - // ������ ������� ����� ������������ ����� �������, ������������ �������� � ������� ���������� ��������� ������� - // ������ ����� TI. - // LPC_SSP1->CR0 = 0x0207; + /* Set DSS data to 16-bit, Frame format TI, SCR is 2 */ + LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-������������ DSS(Data sise select) � 16-������ ������, (3<<8 scr - ����� �������), + // ������ ������� ����� ������������ ����� �������, ������������ �������� � ������� ���������� ��������� ������� + // ������ ����� TI. + // LPC_SSP1->CR0 = 0x0207; - /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */ - LPC_SSP0->CPSR = 0x2; // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz - // LPC_SSP1->CPSR = 0x2; + /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */ + LPC_SSP0->CPSR = 0x2; // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz +// LPC_SSP1->CPSR = 0x2; -/*SSP enable, master mode */ - LPC_SSP0->CR1 = SSPCR1_SSE; + /*SSP enable, master mode */ + LPC_SSP0->CR1 = SSPCR1_SSE; // LPC_SSP1->CR1 = SSPCR1_SSE; - while (LPC_SSP0->SR & SSP_BUSY); + while (LPC_SSP0->SR & SSP_BUSY); // while (LPC_SSP1->SR & SSP_BUSY); - while (LPC_SSP0->SR & RX_SSP_notEMPT) /* clear the RxFIFO */ - Dummy = LPC_SSP0->DR; - //all pins after reset is in GPIO mode, so CS pins needn't to configure - LPC_GPIO0->FIODIR |= ADC; // P0.16 defined as CS for ADC - LPC_GPIO0->FIOSET |= ADC; // set CS for ADC + while (LPC_SSP0->SR & RX_SSP_notEMPT) /* clear the RxFIFO */ + Dummy = LPC_SSP0->DR; + //all pins after reset is in GPIO mode, so CS pins needn't to configure + LPC_GPIO0->FIODIR |= ADC; // P0.16 defined as CS for ADC + LPC_GPIO0->FIOSET |= ADC; // set CS for ADC - LPC_GPIO0->FIODIR |= DAC; // P defined as CS for DAC - LPC_GPIO0->FIOCLR |= DAC; // set CS for DAC -/* while (LPC_SSP1->SR & RX_SSP_notEMPT) - Dummy = LPC_SSP1->DR;*/ /* clear the RxFIFO */ + LPC_GPIO0->FIODIR |= DAC; // P defined as CS for DAC + LPC_GPIO0->FIOCLR |= DAC; // set CS for DAC + /* while (LPC_SSP1->SR & RX_SSP_notEMPT) + Dummy = LPC_SSP1->DR;*/ /* clear the RxFIFO */ } /***************************************************************************** ** Function name: DACInit @@ -284,16 +268,16 @@ ** ** parameters: None ** Returned value: None -** +** *****************************************************************************/ void DACInit( void ) { - /* setup the related pin to DAC output */ - LPC_PINCON->PINSEL1 |= 0x00200000; /* ���������� p0.26 ��� ����� ��� */ - // LPC_GPIO0->FIODIR |= (1<<26); - LPC_DAC->CNTVAL = 0; // ������� ��������� - LPC_DAC->CTRL = 0; // ��� ��� - return; + /* setup the related pin to DAC output */ + LPC_PINCON->PINSEL1 |= 0x00200000; /* ���������� p0.26 ��� ����� ��� */ +// LPC_GPIO0->FIODIR |= (1<<26); + LPC_DAC->CNTVAL = 0; // ������� ��������� + LPC_DAC->CTRL = 0; // ��� ��� + return; } /****************************************************************************** ** Function name: Out_G_photo @@ -302,14 +286,14 @@ ** ** parameters: pointer to gain factors ** Returned value: None -** +** ******************************************************************************/ void Out_G_photo(uint32_t Ph_A, uint32_t Ph_B) { - I2CMasterBuffer[2] = Ph_A;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������) - I2CMasterBuffer[5] = Ph_B;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������) + I2CMasterBuffer[2] = Ph_A;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������) + I2CMasterBuffer[5] = Ph_B;// ������ � ����� I2C ������� ������ � � ������ ���� �������.(��������) - LPC_I2C0->CONSET = I2CONSET_STA; // ���������� ����� ����. - I2CMasterState = I2C_BUSY; // ���������� ���� ������� ����. - } + LPC_I2C0->CONSET = I2CONSET_STA; // ���������� ����� ����. + I2CMasterState = I2C_BUSY; // ���������� ���� ������� ����. +}