void LED_readPage( uint8_t len, uint8_t page )
{
// Software shutdown must be enabled to read registers
LED_writeReg( 0x0A, 0x00, 0x0B );
// Page Setup
uint8_t pageSetup[] = { 0xE8, 0xFD, page };
// Setup page
while ( I2C_Send( pageSetup, sizeof( pageSetup ), 0 ) == 0 )
delay(1);
// Register Setup
uint8_t regSetup[] = { 0xE8, 0x00 };
// Read each register in the page
for ( uint8_t reg = 0; reg < len; reg++ )
{
// Update register to read
regSetup[1] = reg;
// Configure register
while ( I2C_Send( regSetup, sizeof( regSetup ), 0 ) == 0 )
delay(1);
// Register Read Command
uint8_t regReadCmd[] = { 0xE9 };
// Request single register byte
while ( I2C_Send( regReadCmd, sizeof( regReadCmd ), 1 ) == 0 )
delay(1);
dbug_print("NEXT");
}
// Disable software shutdown
LED_writeReg( 0x0A, 0x01, 0x0B );
}
uint8_t IO2::digitalRead(uint8_t pin)
{
int fd;
unsigned char buff[1] = {GET_PORT}, data, result;
I2C_Open(&fd, address);
I2C_Send(&fd, buff, 1);
I2C_Close(&fd);
I2C_Open(&fd, address);
I2C_Read(&fd, &data, 1);
I2C_Close(&fd);
return !!(data & pin);
}
void LED_zeroPages( uint8_t startPage, uint8_t numPages, uint8_t pageLen )
{
// Page Setup
uint8_t pageSetup[] = { 0xE8, 0xFD, 0x00 };
// Max length of a page + chip id + reg start
uint8_t fullPage[ 0xB3 + 2 ] = { 0 };
fullPage[0] = 0xE8; // Set chip id, starting reg is already 0x00
// Iterate through given pages, zero'ing out the given register regions
for ( uint8_t page = startPage; page < startPage + numPages; page++ )
{
// Set page
pageSetup[2] = page;
// Setup page
while ( I2C_Send( pageSetup, sizeof( pageSetup ), 0 ) == 0 )
delay(1);
// Zero out page
while ( I2C_Send( fullPage, pageLen + 2, 0 ) == 0 )
delay(1);
}
}
void main(void)
{
OPTION=0xFF;
GIE=0;
while(1)
{
pause(1);
I2CBUFF[1]++;
I2CBUFF[2]--;
I2CBUFF[3]++;
I2CBUFF[4]--;
I2CBUFF[0]=0;
I2C_Send(0x74,I2CBUFF,5);
}
}
/* Read GPIO Analog Inputs */
void ReadADC(unsigned char value)
{
int fd;
unsigned char buff[5];
unsigned char data[5];
switch(value)
{
case 255:
ReadADC(0);
ReadADC(1);
ReadADC(2);
ReadADC(3);
ReadADC(5);
break;
case 0:
case 1:
case 2:
case 3:
case 5:
buff[0]=0x10+value;
data[0]=0x00;
/* Open I2C-BUS */
I2C_Open(&fd, 0x21);
/* Write register */
I2C_Send(&fd, buff,1 );
/* Read the ADC */
I2C_Read(&fd, data, 2);
/* Convert to Volts. Vref = 3.3V, ADC is 10 bits */
float volts = data[0] * 0.003222656 + data[1]*0.825;
printf("ADC%u: %1.3fV\n",value, volts);
/* Close I2C-BUS */
I2C_Close(&fd);
break;
default:
printf("ADC%u not found\n",value);
}
}
void Sync_RTC(void){
time_t ltime;
struct tm *rtc_tm;
ltime = time(NULL);
rtc_tm = localtime(<ime);
int fd;
unsigned char buff[10];
unsigned char data[10];
buff[0] = 0x02;
/* Open I2C-BUS */
I2C_Open(&fd, 0x51);
/* Write register */
I2C_Send(&fd, buff, 1) ;
/* Read the RTC */
I2C_Read(&fd, data, 7);
/* Close I2C-BUS */
I2C_Close(&fd);
data[0] &= 0x7F;
data[1] &= 0x7F;
data[2] &= 0x3F;
data[3] &= 0x3F;
data[4] &= 0x07;
data[5] &= 0x1F;
data[6] &= 0xFF;
rtc_tm -> tm_sec = BCDtoInt(data[0]);
rtc_tm -> tm_min = BCDtoInt(data[1]);
rtc_tm -> tm_hour = BCDtoInt(data[2]);
rtc_tm -> tm_mday = BCDtoInt(data[3]);
rtc_tm -> tm_wday = BCDtoInt(data[4]);
rtc_tm -> tm_mon = BCDtoInt(data[5]);
rtc_tm -> tm_year = BCDtoInt(data[6]);
const struct timeval tv = {mktime(rtc_tm), 0};
settimeofday(&tv, 0);
}
uint16_t IO2::analogRead(uint8_t pin)
{
int fd;
uint16_t result;
unsigned char buff[1] = {pin}, data[2];
I2C_Open(&fd, address);
I2C_Send(&fd, buff, 1);
I2C_Close(&fd);
I2C_Open(&fd, address);
I2C_Read(&fd, data, 2);
I2C_Close(&fd);
result = (data[1] << 8) | data[0];
return result;
}
/* Set GPIO Outputs */
void Set_LAT(unsigned char value){
int fd;
unsigned char buff[5];
buff[0]=0x02;
buff[1]=value;
/* Open I2C-BUS */
I2C_Open(&fd, 0x21);
/* Write register */
I2C_Send(&fd, buff,2 );
/* Close I2C-BUS */
I2C_Close(&fd);
}
void Read_RTC(void){
int fd;
unsigned char buff[10];
unsigned char data[10];
buff[0] = 0x02;
/* Open I2C-BUS */
I2C_Open(&fd, 0x51);
/* Write register */
I2C_Send(&fd, buff, 1) ;
/* Read the RTC */
I2C_Read(&fd, data, 7);
/* Close I2C-BUS */
I2C_Close(&fd);
data[0] &= 0x7F;
data[1] &= 0x7F;
data[2] &= 0x3F;
data[3] &= 0x3F;
data[4] &= 0x07;
data[5] &= 0x1F;
data[6] &= 0xFF;
printf("Sec: %d\n",BCDtoInt(data[0]));
printf("Min: %d\n",BCDtoInt(data[1]));
printf("Hour: %d\n",BCDtoInt(data[2]));
printf("MDays: %d\n",BCDtoInt(data[3]));
printf("WDays: %d\n",BCDtoInt(data[4]));
printf("Month: %d\n",BCDtoInt(data[5]));
printf("Year: %d\n",BCDtoInt(data[6]));
}
/* Switch Relay On */
void RelayOn(unsigned char value){
int fd;
unsigned char buff[5];
buff[0]=0x41;
buff[1]=value;
/* value:
* 1 - switch relay 1 on
* 2 - switch relay 2 on
* 3 - switch both relays on
* /
/* Open I2C-BUS */
I2C_Open(&fd, 0x21);
/* Write register */
I2C_Send(&fd, buff,2 );
/* Close I2C-BUS */
I2C_Close(&fd);
}
/* Set New I2C device address */
void Set_Address(unsigned char value){
int fd;
unsigned char buff[5];
buff[0]=0xF0;
buff[1]=value;
/* value:
* New Address to be setted
* /
/* Open I2C-BUS */
I2C_Open(&fd, 0x21);
/* Write register */
I2C_Send(&fd, buff,2 );
/* Close I2C-BUS */
I2C_Close(&fd);
}
unsigned char I2C_LoginSector0(unsigned char *buf,unsigned char bufsize)
{ return(I2C_Send(IIC_ComLoginSector0,sizeof(IIC_ComLoginSector0),buf,bufsize));}
unsigned char I2C_ComReadUltralightPage5(unsigned char * buf, unsigned char bufsize)
{ return(I2C_Send(IIC_ComReadUltralightPage5,sizeof(IIC_ComReadUltralightPage5),buf,bufsize));}
unsigned char I2C_ComRedLedOff(unsigned char * buf, unsigned char bufsize)
{ return(I2C_Send(IIC_ComRedLedOff,sizeof(IIC_ComRedLedOff),buf,bufsize));}
unsigned char I2C_ComCopyValue(unsigned char * buf, unsigned char bufsize)
{ return(I2C_Send(IIC_ComCopyValue,sizeof(IIC_ComCopyValue),buf,bufsize));}
unsigned char I2C_ComReadPurse1(unsigned char * buf, unsigned char bufsize)
{ return(I2C_Send(IIC_ComReadPurse1,sizeof(IIC_ComReadPurse1),buf,bufsize));}
unsigned char I2C_ReadBlock1(unsigned char *buf,unsigned char bufsize)
{ return(I2C_Send(IIC_ComReadBlock1,sizeof(IIC_ComReadBlock1),buf,bufsize));}
unsigned char I2C_SelectCard(unsigned char *buf,unsigned char bufsize)
{ return(I2C_Send(IIC_ComSelectCard,sizeof(IIC_ComSelectCard),buf,bufsize));}
