// ds1307 rtc read
bit rtrd (void)
{
unsigned char i; // return 0=ok 1=error
bit err;
I2C_start();
err = I2C_write(0xd0); // address & r/w bit
if (!err)
{
printf("in rtrd");
err = I2C_write(0x00); // start register addr=0
if (!err)
{
printf("in rtrd");
I2C_stop();
I2C_delay();
I2C_start();
err = I2C_write(0xd1); // address & r/w bit
if (!err)
{
printf("in rtrd");
for (i=0;i<=6;i++)
{
TIMBUF[i] = I2C_read();
}
TIMBUF[7] = I2C_readn(); // last byte
}
}
}
I2C_stop();
return (err);
}
static PyObject *I2CDev_read(I2CDev *self, PyObject *args, PyObject *kwds) {
uint32_t n_bytes, i, addr;
PyObject *data, *byte_obj;
uint8_t *rxbuf;
if(!PyArg_ParseTuple(args, "II", &addr, &n_bytes)) {
return NULL;
}
if (self->slave_addr != addr) {
if (setSlaveAddress(self->i2c_fd, addr) < 0) {
PyErr_SetString(PyExc_IOError, "could not configure I2C interface");
return NULL;
}
self->slave_addr = addr;
}
rxbuf = malloc(n_bytes);
if (I2C_read(self->i2c_fd, (void *) rxbuf, n_bytes) < 0) {
PyErr_SetString(PyExc_IOError, "could not read from I2C device");
free(rxbuf);
return NULL;
}
data = PyList_New(0);
for (i=0; i<n_bytes; i++) {
byte_obj = PyInt_FromLong((long) rxbuf[i]);
PyList_Append(data, byte_obj);
Py_DECREF(byte_obj);
}
free(rxbuf);
return data;
}
unsigned int I2C_read_int(unsigned char address){
unsigned char temp1, temp2;
I2C_start();
address = address << 1; /* 0ビット目をR/Wビットにするためシフト*/
address |= 0b00000001; /* 0ビット目をRに */
I2C_send(address); /* スレーブアドレスを送信 */
temp1 = I2C_read();
I2C_send_ACK(0); /* ACK */
temp2 = I2C_read();
I2C_send_ACK(1); /* NACK */
I2C_stop();
return (temp1 << 8) | (0xFF & temp2);
}
char checkInterrupt(){
char int_values;
I2C_start(I2C_BASE, ACCELEROMETER_ADDR, 0);
I2C_write(I2C_BASE, 0x30, 0);
I2C_start(I2C_BASE, ACCELEROMETER_ADDR, 1);
int_values = I2C_read(I2C_BASE, 1);
return int_values;
}
//read value of channel 1 of the light sensor
uint16_t read_ch1(){
unsigned char message[2];
message[0] = 0x9E;
I2C_write(LIGHT_SENSOR_ADDR, message, 1, FALSE);
do{
I2C_read(LIGHT_SENSOR_ADDR, message, 2, TRUE);
} while(USI_TWI_Get_State_Info() == USI_TWI_NO_ACK_ON_ADDRESS);
return (*((uint16_t*)message));
}
void MPU6050_Read_Sensor(void){
uint8_t Gyro_accel_raw[14];
I2C_read(MPU6050_I2C_ADDRESS , MPU6050_DATA_REGISTER , (uint8_t *) &Gyro_accel_raw, 14);
accel[0]= twoByte(Gyro_accel_raw[ 0], Gyro_accel_raw[ 1]);
accel[1]= twoByte(Gyro_accel_raw[ 2], Gyro_accel_raw[ 3]);
accel[2]= twoByte(Gyro_accel_raw[ 4], Gyro_accel_raw[ 5]);
gyro[0]= twoByte(Gyro_accel_raw[ 8], Gyro_accel_raw[ 9]);
gyro[1]= twoByte(Gyro_accel_raw[10], Gyro_accel_raw[11]);
gyro[2]= twoByte(Gyro_accel_raw[12], Gyro_accel_raw[13]);
}
void I2C_ReadMultipleRegisters(unsigned char address, unsigned char startreg, unsigned char* buffer, unsigned short length) {
I2C_start(); // Send I2C Start Transfer
I2C_write(address << 1); // Send identifier I2C address - Write
I2C_write(startreg); // Send register address
I2C_stop(); // Send I2C Stop Transfer
I2C_start(); // Send I2C Start Transfer
I2C_write((address << 1) | 0x01); // Send identifier I2C address - Read
for (int i = 0; i < length; i++) {
buffer[i] = I2C_read(i < length - 1 ? 1 : 0); // Read
}
I2C_stop();
}
u08 PCF8583_read(u08 address)
{
u08 a;
a=(PCF8583_A0<<1)|0xa0;
I2C_start();
I2C_write(a);
I2C_write(address);
I2C_start();
I2C_write(a|1);
a=I2C_read(1);
I2C_stop();
return a;
}
unsigned char I2C_read_char(unsigned char address){
unsigned char data;
I2C_start();
address = address << 1; /* 0ビット目をR/Wビットにするためシフト*/
address |= 0b00000001; /* 0ビット目をRに */
I2C_send(address); /* スレーブアドレスを送信 */
data = I2C_read();
I2C_send_ACK(1); /* NACK */
I2C_stop();
return data;
}
unsigned char I2C_ReadRegister(unsigned char address, unsigned char reg) {
unsigned char data;
I2C_start(); // Send I2C Start Transfer
I2C_write(address << 1); // Send identifier I2C address - Write
I2C_write(reg); // Send register address
I2C_stop(); // Send I2C Stop Transfer
I2C_start(); // Send I2C Start Transfer
I2C_write((address << 1) | 0x01); // Send identifier I2C address - Read
data = I2C_read(0); // Read
I2C_stop();
return data;
}
//-----------------------------------------------------------------------------
// /brief Read data from a register on the AIC3106.
//
// /param uint8_t in_reg_addr: The address of the register to be read from.
//
// /param uint8_t * dest_buffer: Pointer to buffer to store retrieved data.
//
// /return uint32_t ERR_NO_ERROR on sucess
//
//-----------------------------------------------------------------------------
uint32_t AIC3106_readRegister(uint8_t in_reg_addr, uint8_t *dest_buffer)
{
uint32_t rtn;
// write the register address that we want to read.
rtn = I2C_write(I2C_PORT_AIC3106, I2C_ADDR_AIC3106, &in_reg_addr, 1, SKIP_STOP_BIT_AFTER_WRITE);
if (rtn != ERR_NO_ERROR)
return (rtn);
// clock out the register data.
rtn = I2C_read(I2C_PORT_AIC3106, I2C_ADDR_AIC3106, dest_buffer, 1, SKIP_BUSY_BIT_CHECK);
return (rtn);
}
alt_u8 i2c_hdmi_rx_hdmi_map_r(alt_u8 reg)
{
uint32_t offset = reg;
uint32_t data;
pcie_i2c_read(0x68>>1, offset, &data, 1);
return data;
#if 0
I2C_start(I2C_CTRL_BASE,0x68>>1,0); //address the chip in write mode
data = I2C_write(I2C_CTRL_BASE,reg,0); // set command to read input register.
I2C_start(I2C_CTRL_BASE,0x68>>1,1); //send start again but this time in read mode
data = I2C_read(I2C_CTRL_BASE,1); // read the input register and send stop
return data;
#endif
}
// Чтение из регистра кодека
uint16 aic3204_get(uint16 regnum, uint16* regval) {
// Локальные данные
int16 retcode = 0;
uint8 cmd[1];
// Сформировать пакет I2C
cmd[0] = regnum & 0x007F; // 7 бит адреса регистра
// Выдать команду
retcode |= I2C_write(AIC3204_ICADDR, cmd, 1);
// Получить ответ
retcode |= I2C_read(AIC3204_ICADDR, cmd, 1);
// Ожидание завершения переходных процессов
c5515_wait(10);
// Возврат результата
*regval = cmd[0];
return retcode;
}
int16_t tmp100_read_temp(deviceTMP100 device)
{
deviceTMP100_struct *thisDevice;
thisDevice = (deviceTMP100_struct*) device;
int8_t dataBytes[2];
int8_t error=0;
error = I2C_read( thisDevice->bus, thisDevice->address, 0, 2, dataBytes);
if (error==0)
{
// read ok - return data
return dataBytes[0]<<8 | dataBytes[1];
}
return 0;
}
// \return uint32_t
// ERR_NO_ERROR - register read correctly.
//
//-----------------------------------------------------------------------------
uint32_t CDCE913_readByte(uint8_t in_offset, uint8_t *dest_buffer)
{
uint32_t rtn;
// set bit to indicate this is a byte read.
SETBIT(in_offset, BYTE_READ_WRITE_BIT);
// write the register address that we want to read.
rtn = I2C_write(I2C_PORT_CDCE913, I2C_ADDR_CDCE913, &in_offset, 1, SKIP_STOP_BIT_AFTER_WRITE);
if (rtn != ERR_NO_ERROR)
return (rtn);
// clock out the register data.
rtn = I2C_read(I2C_PORT_CDCE913, I2C_ADDR_CDCE913, dest_buffer, 1, SKIP_BUSY_BIT_CHECK);
return (rtn);
}
//Reads the x,y and z registers and stores the contents into x,y and z variables
//returns 1
//usage: gyro.update();
//Note: update must be called before using the getX, getY or getZ functions in order
// to obtain the most recent values from the gyro
void Gyro_Update(gyro_data_t gyro_data)
{
char aux0=0,aux1=0;
I2C_read(ITG_ADDR, GYRO_XOUT_H, &aux1);
I2C_read(ITG_ADDR, GYRO_XOUT_L, &aux0);
gyro_data->x = (aux1<<8)|aux0;
I2C_read(ITG_ADDR, GYRO_YOUT_H, &aux1);
I2C_read(ITG_ADDR, GYRO_YOUT_L, &aux0);
gyro_data->y = (aux1<<8)|aux0;
I2C_read(ITG_ADDR, GYRO_ZOUT_H, &aux1);
I2C_read(ITG_ADDR, GYRO_ZOUT_L, &aux0);
gyro_data->z = (aux1<<8)|aux0;
I2C_read(ITG_ADDR, TEMP_OUT_H, &aux1);
I2C_read(ITG_ADDR, TEMP_OUT_L, &aux0);
gyro_data->temp = (aux1<<8)|aux0;
}
Uint16 AIC_Read(Uint16 regAddr)
{
CSL_Status status;
Uint16 startStop;
Uint16 read_buffer[2];
volatile Uint16 looper;
startStop = ((CSL_I2C_START) | (CSL_I2C_STOP));
/* Read data */
status = I2C_read(read_buffer, 1, CSL_I2C_CODEC_ADDR,
(Uint16 *)®Addr, 1, TRUE,
startStop, CSL_I2C_MAX_TIMEOUT, FALSE);
if (status != CSL_SOK) {
printf("I2C Read ERROR!\n");
return status;
}
/* Give some delay */
for(looper = 0; looper < CSL_I2C_MAX_TIMEOUT; looper++){;}
return read_buffer[0];
}
/**
* \brief Tests I2C polled mode operation
*
* \param none
*
* \return Test result
*/
CSL_Status CSL_i2cPolledTest(void)
{
CSL_Status status;
CSL_Status result;
Uint16 startStop;
volatile Uint16 looper;
result = CSL_I2C_TEST_FAILED;
/* Assign the EEPROM page address */
gI2cWrBuf[0] = 0x0;
gI2cWrBuf[1] = 0x0;
for(looper = 0; looper < CSL_I2C_DATA_SIZE; looper++)
{
gI2cWrBuf[looper + CSL_EEPROM_ADDR_SIZE] = looper;
gI2cRdBuf[looper] = 0x0000;
}
/* Initialize I2C module */
status = I2C_init(CSL_I2C0);
if(status != CSL_SOK)
{
printf("I2C Init Failed!!\n");
return(result);
}
/* Setup I2C module */
i2cSetup.addrMode = CSL_I2C_ADDR_7BIT;
i2cSetup.bitCount = CSL_I2C_BC_8BITS;
i2cSetup.loopBack = CSL_I2C_LOOPBACK_DISABLE;
i2cSetup.freeMode = CSL_I2C_FREEMODE_DISABLE;
i2cSetup.repeatMode = CSL_I2C_REPEATMODE_DISABLE;
i2cSetup.ownAddr = CSL_I2C_OWN_ADDR;
i2cSetup.sysInputClk = CSL_I2C_SYS_CLK;
i2cSetup.i2cBusFreq = CSL_I2C_BUS_FREQ;
startStop = ((CSL_I2C_START) | (CSL_I2C_STOP));
status = I2C_setup(&i2cSetup);
if(status != CSL_SOK)
{
printf("I2C Setup Failed!!\n");
return(result);
}
/* Write data */
status = I2C_write(gI2cWrBuf, (CSL_I2C_DATA_SIZE + CSL_EEPROM_ADDR_SIZE),
CSL_I2C_EEPROM_ADDR, TRUE, startStop,
CSL_I2C_MAX_TIMEOUT);
if(status != CSL_SOK)
{
printf("I2C Write Failed!!\n");
return(result);
}
printf("I2C Write Complete\n");
/* Give some delay */
for(looper = 0; looper < CSL_I2C_MAX_TIMEOUT; looper++){;}
/* Write data EEPROM page address for read operation */
status = I2C_write(gI2cWrBuf, CSL_EEPROM_ADDR_SIZE, CSL_I2C_EEPROM_ADDR,
TRUE, startStop, CSL_I2C_MAX_TIMEOUT);
if(status != CSL_SOK)
{
printf("I2C Write Failed!!\n");
return(result);
}
/* Give some delay */
for(looper = 0; looper < CSL_I2C_MAX_TIMEOUT; looper++){;}
/* Read data */
status = I2C_read(gI2cRdBuf, CSL_I2C_DATA_SIZE, CSL_I2C_EEPROM_ADDR,
TRUE, startStop, CSL_I2C_MAX_TIMEOUT, FALSE);
if(status != CSL_SOK)
{
printf("I2C Read Failed!!\n");
return(result);
}
printf("I2C Read Complete\n");
/* Compare the buffers */
for(looper = 0; looper < CSL_I2C_DATA_SIZE; looper++)
{
if(gI2cWrBuf[looper + CSL_EEPROM_ADDR_SIZE] != gI2cRdBuf[looper])
{
printf("Read Write Buffers Does not Match!!\n");
return(result);
}
}
if(looper == CSL_I2C_DATA_SIZE)
{
printf("Read Write Buffers Match!!\n");
}
result = CSL_I2C_TEST_PASSED;
return(result);
}
/**
* \brief Tests I2C polled mode operation
*
* \param none
*
* \return Test result
*/
CSL_Status CSL_i2cPolledTest(void)
{
CSL_Status status;
CSL_Status result;
Uint16 startStop;
volatile Uint16 looper;
volatile int i;
result = CSL_I2C_TEST_FAILED;
/* Initialize I2C module */
status = I2C_init(CSL_I2C0);
if(status != CSL_SOK)
{
LOG_printf(&trace, "I2C Init Failed!!");
return(result);
}
/* Setup I2C module */
i2cSetup.addrMode = CSL_I2C_ADDR_7BIT; // EEPROM I2C device address is 7-bit (101.0xxx)
i2cSetup.bitCount = CSL_I2C_BC_8BITS; // I2C bit count is 8-bit
i2cSetup.loopBack = CSL_I2C_LOOPBACK_DISABLE;
i2cSetup.freeMode = CSL_I2C_FREEMODE_DISABLE;
i2cSetup.repeatMode = CSL_I2C_REPEATMODE_DISABLE;
i2cSetup.ownAddr = CSL_I2C_OWN_ADDR;
i2cSetup.sysInputClk = CSL_I2C_SYS_CLK;
i2cSetup.i2cBusFreq = CSL_I2C_BUS_FREQ;
startStop = ((CSL_I2C_START) | (CSL_I2C_STOP));
status = I2C_setup(&i2cSetup);
if(status != CSL_SOK)
{
LOG_printf(&trace, "I2C Setup Failed!!");
return(result);
}
for(i = 0; i < CSL_I2C_PAGES; i++){
LOG_printf(&trace, "Page %d", i);
/* Assign the EEPROM page address */
gI2cWrBuf[0] = (CSL_I2C_PAGE_SIZE*i)>>8;
gI2cWrBuf[1] = (CSL_I2C_PAGE_SIZE*i)&0xFF;
for(looper = 0; looper < CSL_I2C_PAGE_SIZE; looper++)
{
gI2cWrBuf[looper + CSL_EEPROM_ADDR_SIZE] = i*CSL_I2C_PAGE_SIZE + looper;
gI2cRdBuf[looper] = 0x0000;
}
/* Write data */
status = I2C_write(gI2cWrBuf, (CSL_I2C_PAGE_SIZE + CSL_EEPROM_ADDR_SIZE),
CSL_I2C_EEPROM_ADDR, TRUE, startStop,
CSL_I2C_MAX_TIMEOUT);
if(status != CSL_SOK)
{
LOG_printf(&trace, "\tI2C Write Failed!!");
return(result);
}
LOG_printf(&trace, "\tI2C Write Complete");
/* Give some delay */
for(looper = 0; looper < CSL_I2C_MAX_TIMEOUT; looper++){;}
/* Read data */
status = I2C_read(gI2cRdBuf, CSL_I2C_PAGE_SIZE, CSL_I2C_EEPROM_ADDR,
gI2cWrBuf, CSL_EEPROM_ADDR_SIZE, TRUE,
startStop, CSL_I2C_MAX_TIMEOUT, FALSE);
if(status != CSL_SOK)
{
LOG_printf(&trace, "\tI2C Read Failed!!");
return(result);
}
LOG_printf(&trace, "\tI2C Read Complete");
/* Compare the buffers */
for(looper = 0; looper < CSL_I2C_PAGE_SIZE; looper++)
{
if(gI2cWrBuf[looper + CSL_EEPROM_ADDR_SIZE] != gI2cRdBuf[looper])
{
LOG_printf(&trace, "\tRead Write Buffers Does not Match!!");
return(result);
}
}
if(looper == CSL_I2C_PAGE_SIZE)
{
LOG_printf(&trace, "\tRead Write Buffers Match!!");
}
}
result = CSL_I2C_TEST_PASSED;
return(result);
}
u8 updGyro(void){
// Takes ~0.21ms when no error..
return I2C_read(Gy_addr,0x28|0x80,(u8 *)sens.GyrRaw,6);
}
int readFrom(byte _dev_address,byte address, int num, byte _buff[]) {
int a=0,i=0;
int timeout;
uint8_t flag1=0,flag2=0;
a=i2c_beginTransmission(I2Ci,_dev_address,i2c_write); // start transmission to device
if(a<0) return -1;
// usart_printfm(USART1,(const int *)"Reading from this device address: %2x\n\r",_dev_address);
a=i2c_sendData(I2Ci,address); // sends address to read from
if(a<0) return -1;
//usart_printfm(USART1,(const int *)"sent this data which is the address to read from: %2x\n\r",address);
// if(a<0)
// return (a-1);
//i2c_stopTransmission(I2Cx); // end transmission
// if(a<0)
// return (a-2);
a=i2c_beginTransmission(I2Ci,_dev_address,i2c_read); // start transmission to device
if(a<0) return -1;
//usart_printfm(USART1,(const int *)"Initiated the register read cycle: %2x\n\r",_dev_address);
// if(a<0)
// return a;
// request 6 bytes from device
if(num==1){
I2C_AcknowledgeConfig(I2Ci, DISABLE);
/* Test on I2C1 EV8 and clear it */
timeout = I2C_TIMEOUT_MAX; /* Initialize timeout value */
// wait until one byte has been received
while( !I2C_CheckEvent(I2Ci, I2C_EVENT_MASTER_BYTE_RECEIVED) ){
ms_delay(100);
if((timeout--)==0){
flag1 = I2Ci->SR1;
flag2 = I2Ci->SR2;
usart_printf(USARTx,"Flag1:%04x \n\r Flag2:%04x\n\r",flag1,flag2);
usart_printf(USARTx,"Failing at read nnack stage\n\r");
return -1;
}
}
// wait until one byte has been received
I2C_GenerateSTOP(I2Ci, ENABLE);
// read data from I2C data register and return data byte
_buff[i] = I2C_ReceiveData(I2Ci);
return 0;
}
if(num==2)
{
timeout = I2C_TIMEOUT_MAX;
// while(I2C_GetFlagStatus(I2Ci,I2C_FLAG_ADDR)!=SET){
// ms_delay(100);
// if((timeout--)==0){
// flag1 = I2Ci->SR1;
// flag2 = I2Ci->SR2;
// usart_printf(USARTx,"Flag1:%04x \n\r Flag2:%04x\n\r",flag1,flag2);
// usart_printf(USARTx,"Failing at reading 2 bytes stage\n\r");
// return ;
// }}
I2C_AcknowledgeConfig(I2Ci, DISABLE);
I2C_NACKPositionConfig(I2Ci, I2C_NACKPosition_Next);
timeout = I2C_TIMEOUT_MAX;
while(I2C_GetFlagStatus(I2Ci,I2C_FLAG_BTF)!=SET){
ms_delay(100);
if((timeout--)==0){
flag1 = I2Ci->SR1;
flag2 = I2Ci->SR2;
usart_printf(USARTx,"Flag1:%04x \n\r Flag2:%04x\n\r",flag1,flag2);
usart_printf(USARTx,"Failing at reading 2 bytes stage2\n\r");
return -1;
}}
i2c_stopTransmission(I2Ci);
_buff[i] = I2C_ReceiveData(I2Ci);
i++;
_buff[i] = I2C_ReceiveData(I2Ci);
num-=2;
// receive a byte
//usart_printfm(USART1,(const int *)"this byte read from accel: %2x\n\r",i);
return 0;
}
while(num>0) // device may send less than requested (abnormal)
if(num==3){
//_buff[i]=I2C_read_ack(I2Cx);
timeout = I2C_TIMEOUT_MAX;
while(I2C_GetFlagStatus(I2Ci,I2C_FLAG_BTF)!=SET){
ms_delay(100);
if((timeout--)==0){
flag1 = I2Ci->SR1;
flag2 = I2Ci->SR2;
usart_printf(USARTx,"Flag1:%04x \n\r Flag2:%04x\n\r",flag1,flag2);
usart_printf(USARTx,"Failing at reading 2 bytes stage2\n\r");
return -1;
}}
I2C_AcknowledgeConfig(I2Ci, DISABLE);
_buff[i]=I2C_ReceiveData(I2Ci);
i++;
num--;
while(I2C_GetFlagStatus(I2Ci,I2C_FLAG_BTF)!=SET)
{
ms_delay(100);
if((timeout--)==0){
flag1 = I2Ci->SR1;
flag2 = I2Ci->SR2;
usart_printf(USARTx,"Flag1:%04x \n\r Flag2:%04x\n\r",flag1,flag2);
usart_printf(USARTx,"Failing at reading 2 bytes stage2\n\r");
return -1;
}}
i2c_stopTransmission(I2Ci);
_buff[i]=I2C_ReceiveData(I2Ci);
i++;
_buff[i]=I2C_ReceiveData(I2Ci);
i++;
num-=2;
//usart_print(USART1,"This byte read from nack: %2x\n\r",i);
return 0;
}
else{
a=I2C_read(I2Ci,_buff[i]);
if(a<0) return -1;
i++;
num--;
}
// if(i != num){
// status = ADXL345_ERROR;
// error_code = ADXL345_READ_ERROR;
// }
//ms_delay(10);
//i2c_stopTransmission(I2Cx); // end transmission
//end :
// usart_printf(USARTx,"Error occured !! Restarting the interface!!");
// ms_delay(5000);
// return -1;
return 0;
}
u8 updAcc(void){
return I2C_read(XM_addr,0x28|0x80,(u8 *)sens.AccRaw,6);
}
u8 updMag(void){
return I2C_read(XM_addr,0x08|0x80,(u8 *)sens.MagRaw,6);
}
u8 I2C1_read(u8 address, u8 *buffer, u8 length)
{
return I2C_read(I2C1, address, buffer, length);
}
u8 updTemp(void){
u16 tmp,ret;
ret=I2C_read(XM_addr,0x05|0x80,(u8 *)&tmp,2);
sens.TempRaw=(float)(((s16)(tmp<<4))>>4)/8.0+21;
return ret;
}
void MMA8452_getData()
{
I2C_read(MMA8452_Address, 0x01, 6, (unsigned char *)&MMA8452_raw);
}
int main()
{
CyGlobalIntEnable;
UART_Start();
printf("Start\r\n");
/* //IR receiver//
----------------------------------------------------
unsigned int IR_val;
for(;;)
{
IR_val = get_IR();
printf("%x\r\n\n",IR_val);
}
///---------------------------------------------------------- */
/*
//Ambient//
----------------------------------------------------
I2C_Start();
uint16 value =0;
I2C_write(0x29,0x80,0x00);
value = I2C_read(0x29,0x80);
printf("%x ",value);
I2C_write(0x29,0x80,0x03);
value = I2C_read(0x29,0x80);
printf("%x\r\n",value);
value = I2C_read(0x29,0x81);
printf("%x\r\n",value);
for(;;)
{
uint8 Data0Low,Data0High,Data1Low,Data1High;
Data0Low = I2C_read(0x29,CH0_L);
Data0High = I2C_read(0x29,CH0_H);
Data1Low = I2C_read(0x29,CH1_L);
Data1High = I2C_read(0x29,CH1_H);
uint8 CH0, CH1;
CH0 = convert_raw(Data0Low,Data0High);
CH1 = convert_raw(Data1Low,Data1High);
// printf("%d %d %d %d\r\n",Data0Low,Data0High, Data1Low,Data1High);
// printf("%d %d\r\n",CH0,CH1);
// printf("%f\r\n",(float)CH1/CH0);
double Ch0 = CH0;
double Ch1 = CH1;
double data = 0;
data = getLux(Ch0,Ch1);
printf("%lf\r\n",data);
}
///---------------------------------------------------------- */
/* //nunchuk//
----------------------------------------------------
nunchuk_start();
nunchuk_init();
for(;;)
{
nunchuk_read();
}
//----------------------------------------------------*/
//accelerometer//
//--------------------------------------------------------------
I2C_Start();
uint8 X_L_A, X_H_A, Y_L_A, Y_H_A, Z_L_A, Z_H_A;
int16 X_AXIS, Y_AXIS, Z_AXIS;
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL1_REG, 0x37); // set accelerometer & magnetometer into active mode
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL7_REG, 0x22);
for(;;)
{
//print out accelerometer output
X_L_A = I2C_read(ACCEL_MAG_ADDR, OUT_X_L_A);
X_H_A = I2C_read(ACCEL_MAG_ADDR, OUT_X_H_A);
X_AXIS = convert_raw(X_L_A, X_H_A);
Y_L_A = I2C_read(ACCEL_MAG_ADDR, OUT_Y_L_A);
Y_H_A = I2C_read(ACCEL_MAG_ADDR, OUT_Y_H_A);
Y_AXIS = convert_raw(Y_L_A, Y_H_A);
Z_L_A = I2C_read(ACCEL_MAG_ADDR, OUT_Z_L_A);
Z_H_A = I2C_read(ACCEL_MAG_ADDR, OUT_Z_H_A);
Z_AXIS = convert_raw(Z_L_A, Z_H_A);
//printf("ACCEL: %d %d %d %d %d %d \r\n", X_L_A, X_H_A, Y_L_A, Y_H_A, Z_L_A, Z_H_A);
value_convert_accel(X_AXIS, Y_AXIS, Z_AXIS);
printf("\n");
CyDelay(50);
}
///----------------------------------------------------------
/* //ultra//
----------------------------------------------------
ultra_isr_StartEx(ultra_isr_handler); // Ultra Sonic Interrupt
Ultra_Start(); // Ultra Sonic Start function
for(;;)
{
CyDelay(100);
Trig_Write(1); // Trigger High
CyDelayUs(10); // 10 micro seconds for trigger input signals
Trig_Write(0); // Trigger Low
}
//----------------------------------------------------*/
/* //reflectance//
----------------------------------------------------
sensor_isr_StartEx(sensor_isr_handler);
Refelctance_Start();
IR_led_Write(1);
for(;;)
{
reflectance_period(); //print out each period of reflectance sensors
reflectance_digital(); //print out 0 or 1 according to results of reflectance period
CyDelay(500);
}
///----------------------------------------------------*/
/* //motor//
----------------------------------------------------
motor_Start(); // motor start
motor_forward(50,2000); // moving forward
motor_turn(10,50,2000); // turn
motor_turn(50,10,2000); // turn
motor_backward(50,2000); // movinb backward
motor_Stop(); // motor stop
for(;;)
{
}
///----------------------------------------------------*/
/*
//gyroscope//
//-----------------------------------------------------
I2C_Start();
uint8 X_AXIS_L, X_AXIS_H, Y_AXIS_L, Y_AXIS_H, Z_AXIS_L, Z_AXIS_H;
int16 X_AXIS, Y_AXIS, Z_AXIS;
I2C_write(GYRO_ADDR, GYRO_CTRL1_REG, 0x0F); // set gyroscope into active mode
I2C_write(GYRO_ADDR, GYRO_CTRL4_REG, 0x30); // set full scale selection to 2000dps
for(;;)
{
//print out gyroscope output
X_AXIS_L = I2C_read(GYRO_ADDR, OUT_X_AXIS_L);
X_AXIS_H = I2C_read(GYRO_ADDR, OUT_X_AXIS_H);
X_AXIS = convert_raw(X_AXIS_H, X_AXIS_L);
Y_AXIS_L = I2C_read(GYRO_ADDR, OUT_Y_AXIS_L);
Y_AXIS_H = I2C_read(GYRO_ADDR, OUT_Y_AXIS_H);
Y_AXIS = convert_raw(Y_AXIS_H, Y_AXIS_L);
Z_AXIS_L = I2C_read(GYRO_ADDR, OUT_Z_AXIS_L);
Z_AXIS_H = I2C_read(GYRO_ADDR, OUT_Z_AXIS_H);
Z_AXIS = convert_raw(Z_AXIS_H, Z_AXIS_L);
//printf("X_AXIS_L: %d, X_AXIS_H: %d, average: %d \r\n", X_AXIS_L, X_AXIS_H, (X_AXIS_H+X_AXIS_L)/2);
//printf("Y_AXIS_L: %d, Y_AXIS_H: %d, average: %d \r\n", Y_AXIS_L, Y_AXIS_H, (Y_AXIS_H+Y_AXIS_L)/2);
//printf("Z_AXIS_L: %d, Z_AXIS_H: %d, average: %d \r\n", Z_AXIS_L, Z_AXIS_H, (Z_AXIS_H+Z_AXIS_L)/2);
//printf("H L : %d %d %d %d %d %d \r\n", X_AXIS_L, X_AXIS_H, Y_AXIS_L, Y_AXIS_H, Z_AXIS_L, Z_AXIS_H);
//printf("%d %d %d \r\n", X_AXIS, Y_AXIS, Z_AXIS);
printf("%d %d %d \r\n", value_convert_gyro(X_AXIS), value_convert_gyro(Y_AXIS), value_convert_gyro(Z_AXIS));
CyDelay(50);
}
///-----------------------------------------------------------------*/
/*
//magnetometer//
//--------------------------------------------------------------
I2C_Start();
uint8 X_L_M, X_H_M, Y_L_M, Y_H_M, Z_L_M, Z_H_M;
int16 X_AXIS, Y_AXIS, Z_AXIS;
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL1_REG, 0x37); // set accelerometer & magnetometer into active mode
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL5_REG, 0x10); // set a data rate of 50Hz
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL6_REG, 0x60); // set the full scale selection to +/- 12 Gauss
I2C_write(ACCEL_MAG_ADDR, ACCEL_CTRL7_REG, 0x80); // set to continuous-conversion mode
for(;;)
{
X_L_M = I2C_read(ACCEL_MAG_ADDR, OUT_X_L_M);
X_H_M = I2C_read(ACCEL_MAG_ADDR, OUT_X_H_M);
X_AXIS = convert_raw(X_L_M, X_H_M);
Y_L_M = I2C_read(ACCEL_MAG_ADDR, OUT_Y_L_M);
Y_H_M = I2C_read(ACCEL_MAG_ADDR, OUT_Y_H_M);
Y_AXIS = convert_raw(Y_L_M, Y_H_M);
Z_L_M = I2C_read(ACCEL_MAG_ADDR, OUT_Z_L_M);
Z_H_M = I2C_read(ACCEL_MAG_ADDR, OUT_Z_H_M);
Z_AXIS = convert_raw(Z_L_M, Z_H_M);
heading(X_AXIS, Y_AXIS);
// printf("MAGNET: %d %d %d %d %d %d \r\n", X_L_M, X_H_M, Y_L_M, Y_H_M, Z_L_M, Z_H_M);
//printf("%d %d %d \r\n", X_AXIS,Y_AXIS, Z_AXIS);
CyDelay(50);
}
///----------------------------------------------------------*/
}
void getAngle(){
/* Reads gyroscope measurements by issuing command to read
* from gyroscope register 0x1D. This register value will
* automatically increment until a command is received to
* end the read. Gyroscope measurements are expressed as
* 16 bit signed integers and have 3 degrees of freedom
* along the X, Y, and Z axes. Each 16 bit value is stored
* in two registers thus a total of 6 reads are required
* to receive data from all six registers(0x1D to 0x22).
*/
I2C_start(I2C_BASE, GYROSCOPE_ADDR, 0);
I2C_write(I2C_BASE, 0x1D, 0);
I2C_start(I2C_BASE, GYROSCOPE_ADDR, 1);
gyro_x_high = I2C_read(I2C_BASE, 0); //Reads and stores the most significant byte for the X axis
gyro_x_low = I2C_read(I2C_BASE, 0); //Reads and stores the least significant byte for the X axis
gyro_y_high = I2C_read(I2C_BASE, 0); //Reads and stores the most significant byte for the Y axis
gyro_y_low = I2C_read(I2C_BASE, 0); //Reads and stores the least significant byte for the Y axis
gyro_z_high = I2C_read(I2C_BASE, 0); //Reads and stores the most significant byte for the Z axis
gyro_z_low = I2C_read(I2C_BASE, 1); //Reads and stores the least significant byte for the Z axis
/* Reads accelerometer measurements by issuing command to read
* from accelerometer register 0x32. This register value will
* automatically increment until a command is received to
* end the read. Accelerometer measurements are expressed as
* 16 bit signed integers and have 3 degrees of freedom
* along the X, Y, and Z axes. Each 16 bit value is stored
* in two registers thus a total of 6 reads are required
* to receive data from all six registers(0x32 to 0x37).
*/
I2C_start(I2C_BASE, ACCELEROMETER_ADDR, 0);
I2C_write(I2C_BASE, 0x32, 0);
I2C_start(I2C_BASE, ACCELEROMETER_ADDR, 1);
acc_x_low = I2C_read(I2C_BASE, 0); //Reads and stores the least significant byte for the X axis
acc_x_high = I2C_read(I2C_BASE, 0); //Reads and stores the most significant byte for the X axis
acc_y_low = I2C_read(I2C_BASE, 0); //Reads and stores the least significant byte for the Y axis
acc_y_high = I2C_read(I2C_BASE, 0); //Reads and stores the most significant byte for the Y axis
acc_z_low = I2C_read(I2C_BASE, 0); //Reads and stores the least significant byte for the Z axis
acc_z_high = I2C_read(I2C_BASE, 1); //Reads and stores the most significant byte for the Z axis
/* Performs bit shift operation to combine higher and lower
* bytes of X, Y, and Z angles into a single variable.
* The MSB is shifted 8 bits to the left and the LSB
* is moved into the lower 8 bits.
*/
gyro_x_high <<= 8;
gyro_x_high |= gyro_x_low;
// gyro_x_high -= GYRO_X_OFFSET;
gyro_y_high <<= 8;
gyro_y_high |= gyro_y_low;
// gyro_y_high += GYRO_Y_OFFSET;
gyro_z_high <<= 8;
gyro_z_high |= gyro_z_low;
// gyro_z_high += GYRO_Z_OFFSET;
acc_x_high <<= 8;
acc_x_high |= acc_x_low;
// acc_x_high += ACCEL_X_OFFSET;
acc_y_high <<= 8;
acc_y_high |= acc_y_low;
// acc_y_high -= ACCEL_Y_OFFSET;
acc_z_high <<= 8;
acc_z_high |= acc_z_low;
// acc_z_high += ACCEL_Z_OFFSET;
// printf("Acc X:%d Y:%d Z:%d || Gyro X:%d Y:%d Z:%d\n",
// acc_x_high, acc_y_high, acc_z_high, gyro_x_high, gyro_y_high, gyro_z_high);
/* Calculates the current angle as measured by the accelerometer
* and converts the angle from radians to degrees.
* This is done using trigonometry, the atan function, to get the
* principal value of the tangent of Y and Z. This value is then
* converted to degrees to simplify further calculations.
*/
accXAngle = (float) (atan2(acc_y_high, acc_z_high)+M_PI)*RAD_TO_DEG;
accYAngle = (float) (atan2(acc_x_high, acc_z_high)+M_PI)*RAD_TO_DEG;
accXAngle -= ACCEL_X_OFFSET;
accYAngle += ACCEL_Y_OFFSET;
//Change the rotation value of the accelerometer to -/+ 180
if (accXAngle > 180)
{
accXAngle -= (float)360.0;
}
if (accYAngle > 180)
{
accYAngle -= (float)360.0;
}
/* Calculates the robot's current rotation in degrees per second
* This is done by multiplying the raw data acquired from the
* X axis of the gyroscope by the sensitivity scale factor
*/
rate_gyr_x = (float) gyro_x_high*G_GAIN;
rate_gyr_y = (float) gyro_y_high*G_GAIN;
/* Calculate the robot's current angle as measured by the gyroscope.
* This is done by multiplying the loop period by the rotation rate
* in the X axis.
*/
gyroXAngle = rate_gyr_x*DT;
gyroYAngle = rate_gyr_y*DT;
/* Combines the two angular measurements by the accelerometer
* and the gyroscope into a single value to reduce the effects
* of drift on the gyroscope and noise in the accelerometer.
* A complementary filter is used which trusts the gyroscope
* for short periods of time and the accelerometer for longer
* periods of time.
*/
CFangleX = 0.98*(CFangleX+gyroXAngle)+(0.02)*accXAngle;
CFangleY = 0.98*(CFangleY+gyroYAngle)+(0.02)*accYAngle;
//printf("The angle is: %f %f %f\n", CFangleY, gyroYAngle, accYAngle);
}
void instrCall_I2C(char instruction, char* datain, char datainLength)
{
switch (instruction)
{
case I2C_WRITE:
{
I2C_error = I2C_write(datain[0], &datain[1]);
break;
}
case I2C_READ:
{
I2C_read(datain[0], datain[1], &datain[2]);
setReplyInherentData(S_I2C, I2C_READ, datain[1], 0x00);
break;
}
case I2C_SETUP:
{
I2C_error = I2C_setup();
break;
}
case I2C_SEND_START:
{
I2C_error = ERROR_I2C_NOERROR;
I2C_SCL_LO; QDEL;
I2C_SDL_HI; QDEL;
I2C_SCL_HI; QDEL; //ensure the lines are in the correct state before issuing the start
I2C_START;
break;
}
case I2C_SEND_STOP:
{
I2C_STOP;
break;
}
case I2C_SEND_BYTES:
{
char ack = 0;
// send the data
char writeDataLength = datain[0];
char* writeData = &datain[1];
while (writeDataLength--)
ack |= i2cPutbyte(*writeData++);
I2C_SDL_LO; // clear data line
if (ack == 0) //all bytes acked
I2C_error = ERROR_I2C_NOERROR;
else
I2C_error = ERROR_I2C_NOACK;
break;
}
case I2C_READ_BYTES:
{
char readDataLength = datain[0];
char j = readDataLength;
while (j--)
buffer_REPLY[IN_REPORT_HEADER_LENGTH + readDataLength - 1 - j] = i2cGetbyte(j == 0);
I2C_SDL_HI; // clear data line and
setReplyInherentData(S_I2C, I2C_READ_BYTES, readDataLength, 0x00);
break;
}
case I2C_CHECK_ERROR:
{
setReply(S_I2C, I2C_CHECK_ERROR, 1, 0x00, &I2C_error);
I2C_error = ERROR_I2C_NOERROR; //reset the error code
break;
}
case I2C_BUS_SCAN:
{
I2C_busScan(datain[0], datain[1], datain[2]);
break;
}
}
}