/*---------------------------------------------------------------------------*/
INT8U RTC_RandomRead(INT8U Address)
// Description:
// Random Read Operation. Data is read from the RTC. The RTC
// address is defined with the parameter Address.
{
INT8U data_in;
#if (defined I2C_SW && I2C_SW == 1)
CRITICAL_SECTION_START();
sw_i2c_start(); // Send start signal
sw_i2c_write(DS1307Address); // Send identifer I2C address (10100000b)
delay_time(I2C_DELAY);
sw_i2c_write((INT8U) Address); // Send address to EEPROM
delay_time(I2C_DELAY);
sw_i2c_start(); // Send I2C Start Transfer
sw_i2c_write(DS1307Address | 1); // Send identifer I2C address (10100001b)
delay_time(I2C_DELAY);
data_in = sw_i2c_read(0); // Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
CRITICAL_SECTION_END();
#else
IIC_transmite(DS1307Address, Address, NULL);
IIC_recebe(DS1307Address, &data_in);
#endif
return data_in;
}
unsigned char TOS_parampost(void (*tp) (), uint32_t arg) {
DECLARE_CRITICAL_SECTION();
uint8_t tmp;
// dbg(DBG_SCHED, ("TOSH_post: %d 0x%x\n", TOSH_sched_free, (int)tp));
CRITICAL_SECTION_BEGIN();
tmp = TOSH_sched_free;
if (TOSH_queue[tmp].tp == 0x0) {
#ifdef TASK_QUEUE_DEBUG
occupancy++;
if (occupancy > max_occupancy) {
max_occupancy = occupancy;
}
#endif
if(pushqueue(¶mtaskQueue, arg)){
TOSH_sched_free = (tmp + 1) & sys_task_bitmask;
TOSH_queue[tmp].tp = tp;
TOSH_queue[tmp].postingFunction = (void *)__builtin_return_address(0);
TOSH_queue[tmp].timestamp = OSCR0;
TOSH_queue[tmp].executeTime = 0;
}
else{
printFatalErrorMsg("paramtaskqueue full",0);
}
CRITICAL_SECTION_END();
return 0x1;
}
else {
#ifdef TASK_QUEUE_DEBUG
failed_post++;
#endif
CRITICAL_SECTION_END();
printFatalErrorMsg("TaskQueue Full. Size = ", 1,sys_max_tasks);
return 0x0;
}
}
INT8U RTC_DS1307_Init(void)
{
#if (defined I2C_SW && I2C_SW == 1)
INT8U ret = NO_I2C_ACK;
CRITICAL_SECTION_START();
sw_i2c_init();
CRITICAL_SECTION_END();
sw_i2c_start(); // Send start signal
ret = sw_i2c_write(DS1307Address); // Send identifer I2C address (10100000b)
delay_time(I2C_DELAY);
sw_i2c_stop();
return ((ret == OK_I2C_ACK) ? TRUE : FALSE);
#else
IIC_init();
#endif
}
/*---------------------------------------------------------------------------*/
INT8U RTC_CurrentAddressRead(void)
// Description:
// Current Address Read Operation. Data is read from the RTC. The current
// address from the RTC is used.
{
INT8U data_in;
#if (defined I2C_SW && I2C_SW == 1)
CRITICAL_SECTION_START();
sw_i2c_start(); // Send I2C Start Transfer
sw_i2c_write(DS1307Address | 1); // Send identifer I2C address (10100001b)
data_in = sw_i2c_read(0); // Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
CRITICAL_SECTION_END();
#else
IIC_recebe(DS1307Address, &data_in);
#endif
return data_in;
}
void RTC_ByteWrite(INT8U Address, INT8U Data)
// Description:
// Byte Write Operation. The communication via the I2C bus with an EEPROM
// (2465) is realized. A data byte is written into a user defined address.
{
#if (defined I2C_SW && I2C_SW == 1)
CRITICAL_SECTION_START();
sw_i2c_start(); // Send start signal
sw_i2c_write(DS1307Address & 0b11111110);// Send identifier I2C address 0xA0 = 10100000b
delay_time(I2C_DELAY);
sw_i2c_write((INT8U) Address);// Send address to RTC (byte address)
delay_time(I2C_DELAY);
sw_i2c_write(Data); // Send low byte to RTC (data to write)
delay_time(I2C_DELAY); // Delay a period of time to write
sw_i2c_stop(); // Send I2C Stop Transfer
delay_time(20); // Delay a period of time to write
CRITICAL_SECTION_END();
#else
IIC_transmite(DS1307Address, Address, &Data);
#endif
}