// TricklePower Mode ein- und ausschalten
static uint8_t __attribute__ ((progmem)) st_msg[]  = {0xA0,0xA2};	// Start Message
// Trickle Power
static uint8_t __attribute__ ((progmem)) tp_1s_msg[] = {
	0x00,0x09,    0x97,0,0, 1,0x2C, 0,0,0x01,0x2C,   0x00,0xF1};	// 0,3s EIN; 1s Cycle  (etwa 70mA)
static uint8_t __attribute__ ((progmem)) tp_10s_msg[] = {
	0x00,0x09,    0x97,0,0, 0,0x32, 0,0,0x01,0xF4,   0x01,0xBE};	// 0,5s EIN; 10s Cycle (etwa 10mA)
// Set Low Power Acquisition Parameters - Message ID 167
static uint8_t __attribute__ ((progmem)) lp_para_msg[] = {
	0x00,0x0F,    0xA7, 0x00,0x1B,0x77,0x40, 0x00,0x01,0xD4,0xC0, 0,0,0,0x3C, 0,0, 0x03,0x4A};	// MaxOffTime = 30min; MaxSearchTime = 2min; Adaptive TricklePower = off
// Advanced Power Management - Message ID 53
//static uint8_t __attribute__ ((progmem)) lp_apm_msg[] = {
//	0x00,0x0C,    0x35, 1,0,0x0A,0,3,7,0,0,1,2,0, 0x00,0x4D};		// APM = on; Cycle = 10s;  5% duty cycle
static uint8_t __attribute__ ((progmem)) lp_apm_msg[] = {
	0x00,0x0C,    0x35, 1,0,0x0A,0,3,7,0,0,0x0A,2,0, 0x00,0x56};	// APM = on; Cycle = 10s;  50% duty cycle
// NMEA
static uint8_t __attribute__ ((progmem)) nmea_msg[] = {
	0x00,0x18,    0x81,2, 1,1,0,1,1,1,5,1,1,1,0,1,0,1,0,0,0,1,0,0,0x4B,0,   0x00,0xDE};	// zu NMEA umschalten (19,2 kBaud)
static uint8_t __attribute__ ((progmem)) end_msg[] = {0xB0,0xB3};	// End-Message

void GPS_NMEA(void)
{
	uint8_t i;
	// nach NMEA rückschalten ...
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&st_msg[i]));
	for(i=0; i<28; i++)
		uart_putc(pgm_read_byte(&nmea_msg[i]));
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&end_msg[i]));
}

void GPS_TricklePower(uint8_t wie)
{
	uint8_t i;

	// nach SiRF Binär umschalten ...
	uart_puts("$PSRF100,0,19200,8,1,0*39\r\n");
	_delay_ms(200);

	// TricklePower einstellen ...
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&st_msg[i]));
	if(wie == 1)
		for(i=0; i<13; i++)
			uart_putc(pgm_read_byte(&tp_1s_msg[i]));
	else if(wie == 2)
		for(i=0; i<13; i++)
			uart_putc(pgm_read_byte(&tp_10s_msg[i]));
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&end_msg[i]));

	// Adaptive TricklePower off ...
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&st_msg[i]));
	for(i=0; i<19; i++)
		uart_putc(pgm_read_byte(&lp_para_msg[i]));
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&end_msg[i]));
	_delay_ms(200);

	// Advanced Power Management on ...
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&st_msg[i]));
	for(i=0; i<16; i++)
		uart_putc(pgm_read_byte(&lp_apm_msg[i]));
	for(i=0; i<2; i++)
		uart_putc(pgm_read_byte(&end_msg[i]));

	_delay_ms(200);	// warten
	GPS_NMEA();		// nach NMEA rückschalten

//	uart_puts("$PSRF107,0,200,500*3A\r\n");		// 500ms ON, 20% Duty Cyle
}