/* serialEE_PrintBlock:
* Prints out the block data pointed by EE_AddressData.
*/
void serialEE_PrintBlock(uint8_t block, uint8_t datasize)
{
uint8_t buffer[80];
EE_AddressStruct EE_Current;
EE_Current.EE_Address = 0x00;
EE_Current.EE_Block = block;
uartTxString("\n\rNow reading from memory block:");
uartTx( (EE_Current.EE_Block) + '0');
uartTxString("\n\r");
/* Read until the last entry of the current block */
for( EE_Current.EE_Address = EE_START_ADDRESS;
EE_Current.EE_Address < serialEE_getEndBlock(EE_Current.EE_Block);
EE_Current.EE_Address += datasize)
{
serialEE_ReadBlock(buffer,
datasize,
&EE_Current);
/* Parse the relevant information*/
uartTxString("\r\n");
uartTxString(buffer);
}
}
/* Print a NULL terminated string over UART.
* string - null terminated sting to transmit over UART. */
void uartPrint(const char * string)
{
while (*string)
{
uartTx(*string++);
}
}
/* uartTxString:
* Outputs the passed string to the UART.Tx pin
* The output is true ouput, not inverted, so a MAX232 or some sort of
* TTL -> +/- 15V converter is required.
*/
void uartTxString(uint8_t* outString)
{
while( *outString )
{
uartTx(*outString++);
}
}
/** Writes nbytes of buffer to the UART */
void uartTxDump(uint8_t* buffer, uint8_t nbytes )
{
uint16_t i = 0;
while( i++ < nbytes )
{
uartTx(*buffer++);
}
}
/* Send a string which resides in the program memory */
void uartTxString_P(const char* outString_P)
{
char c;
while( (c = pgm_read_byte(outString_P++)) )
{
uartTx(c);
}
}
void printEEPointer(EE_AddressStruct* EE_AddressData)
{
uartTxString("\n\rCurrent location of the EEPROM Pointer: \n\rBlock: ");
uartTx( (EE_AddressData->EE_Block) + '0' );
utoa( (EE_AddressData->EE_Address / EE_PAGE_SIZE), OutputString, 10);
uartTxString("\n\rPage: ");
uartTxString(OutputString);
utoa( EE_AddressData->EE_Address, OutputString, 10);
uartTxString("\n\rAddress: ");
uartTxString(OutputString);
}
void serialEE_HandleBlockOverflow( EE_AddressStruct* EE_AddressData,
uint8_t datasize)
{
/* Check that the current memory block is not full
* (For 24XX16 & 24XX1025 devices only!)
*/
if( ((EE_AddressData->EE_Address) + datasize) > EE_BLOCK_SIZE )
{
/* Record the last entry of the block */
EE_EndBlockAddress[(EE_AddressData->EE_Block)] = EE_AddressData->EE_Address;
/* Select the next block */
EE_AddressData->EE_Block++;
if( EE_AddressData->EE_Block >= EE_NUMBER_OF_BLOCKS)
{
/*ALL MEMORY BLOCKS HAVE BEEN USED UP!*/
/* Handle event here: */
uartTxString("\n\rWarning : All memory blocks have been used up!");
EE_AddressData->EE_Block = (EE_NUMBER_OF_BLOCKS - 1);
}
/* Reset Block address pointer */
EE_AddressData->EE_Address = 0x00;
/* Print which block is currently selected */
uartTxString("\n\rNow writing to memory block:");
uartTx( (EE_AddressData->EE_Block) + '0');
uartTxString("\n\r");
}
}
int main(void) {
/* Watchdog */
wdt_reset();
wdt_disable();
/* Ports */
DDRB = _BV(PINB0) | _BV(PINB2) | _BV(PINB3) | _BV(PINB5);
DDRD = _BV(PIND5) | _BV(PIND7);
PORTB = 0xff; //& (_BV(PINB0));
PORTC = 0xff;
PORTD = 0xff;// & (_BV(PIND5) | _BV(PIND6) | _BV(PIND7));
/* Power saving */
set_sleep_mode(SLEEP_MODE_IDLE);
//b = fifoCreate(255);
vs1002Reset();
DDRD |= _BV(DDD1);
UCSR0B = _BV(TXEN0) | _BV(RXEN0); // | _BV(RXCIE0);
UBRR0L = 9;
/* SPI */
SPCR = _BV(SPE) | _BV(MSTR) | _BV(SPR1) | _BV(SPR0);
//SPSR = _BV(SPI2X);
// 0x8000 + 6144 = 0x9800, 12.288MHz XTAL + clk-doubling
/* Clock */
vs1002cmd_s();
SPDR = 0x02;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x03;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x98;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
vs1002cmd_e();
/* Mode: TEST */
vs1002cmd_s();
SPDR = 0x02;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x08;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x20; // Test
loop_until_bit_is_set(SPSR, SPIF);
vs1002cmd_e();
/* Volume */
vs1002cmd_s();
SPDR = 0x02;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x0b;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
vs1002cmd_e();
/* Test 1.500kHz sine */
vs1002data_s();
SPDR = 0x53;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0xef;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x6e;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x28;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
vs1002data_e();
uint8_t t;
for (t = 0; t < 125; t++) {
_delay_ms(2);
}
/* End test */
vs1002data_s();
SPDR = 0x45;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x78;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x69;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x74;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
vs1002data_e();
/* Mode: PLAY */
vs1002cmd_s();
SPDR = 0x02;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x00;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x08;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0x08; // STREAM
loop_until_bit_is_set(SPSR, SPIF);
vs1002cmd_e();
uint16_t i;
uint8_t buffer[1000];
for (;;) {
uartTx('.');
for (i = 0; i < 1000; i++) {
loop_until_bit_is_set(UCSR0A, RXC0);
buffer[i] = UDR0;
}
loop_until_bit_is_set(VS1002_DREQ_PORT, VS1002_DREQ_PIN);
vs1002data_s();
for (i = 0; i < 1000; i++) {
loop_until_bit_is_set(SPSR, SPIF);
SPDR = buffer[i];
}
vs1002data_e();
}
}
/* entry point of application */
int main ( )
{
/* first thing is to enable the watchdog - so if the app crashes, the watchdog will
expire and the AS7000 will reset */
wdgEnable( ONE_SECOND );
/* count variable to see some movement on uart */
cnt = 0;
/* now we want to use the UART to report */
ccuSelectUartPins( GPIO_NONE, UART_TX_PIN );
uartInitialise( );
uartOpen( UART_BAUD_RATE_FAST );
/* send a greeting via uart */
uartTxString( "AS7000 is alive\n" );
/* we need the timers to measure the real slow clock frequency */
tmrInitialise( );
slowClockFrequency = tmrSlowClockFrequency( 10 ); /* make sure you measure for less than 1 seconds, otherwise the watchdog will expire */
/* note: the real slow clock frequency is than used by the SW for further timer calculations - or sleep mode calculations */
/* print the measured frequency */
uartTxString( "SlowClockFrequency=" );
uartTxUint( slowClockFrequency );
uartTxString( "Hz\n" );
/* e.g. configure i2c as slave to be used */
ccuSelectI2CPins( 0 /* slave */, I2C_SCL_PIN, 0 /* SCL - no internal pull-up */, I2C_SDA_PIN, 0 /* SDA - no internal pull-up */ );
i2cSlaveInitialise( );
i2cSlaveOpen( I2C_SLAVE_ADDRESS );
/* drive a led through one of the gpio pins */
ccuSelectGPIOPin( LED_PIN, 1 /* digital */, CCU_NO_PULL );
gpioInitialise();
gpioConfigure( 0 /* no input */, LED_MASK /* led is output */ );
gpioWrite( LED_MASK, LED_OFF ); /* switch off */
/* enalbe interrupts in system */
__enable_irq( );
/* show how to use the delays */
delayInMicroseconds( 0 );
delayInMicroseconds( 1 );
delayInMicroseconds( 2 );
/* put the AS7000 to sleep always for 500 milliseconds */
ccuConfigureDeepSleep( 500, 0 /* no wake-up on gpio7 */, 0 /* no wake-up on gpio8 */ );
while ( 1 )
{
wdgToggle( ); /* make sure the watchdog does not expire */
/* count up and report value on uart and blink led - to see something */
cnt++;
if ( cnt & 1 )
{
gpioWrite( LED_MASK, LED_ON );
}
else
{
gpioWrite( LED_MASK, LED_OFF );
}
uartTxUint( cnt );
uartTx( '\n' );
/* do some usefull stuff here */
/* not to be used in debugger:
ccuEnterDeepSleep( ); <---- debugger does not see the CPU anymore and stops
*/
/* use instead: */ delayInMilliseconds( 500 );
}
}
void uartTxArray(uint8_t uartId, uint8_t len, uint8_t *data) {
uint8_t c;
for (c = 0; c < len; c++) {
uartTx(uartId, data[c]);
}
}
void uartNewLine(void)
{
uartTx('\r');
uartTx('\n');
}