Changeset - e3feb70c71e6
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Ethan Zonca - 10 years ago 2016-03-31 22:25:29
ez@ethanzonca.com
Commented out GPS code that wasn't compiling, added power saving options to si5351 code. Tx is now 66mA, no GPS.
2 files changed with 14 insertions and 5 deletions:
0 comments (0 inline, 0 general)
src/gps.c
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@@ -27,31 +27,31 @@ int skipBytes = 0;
 

	
 
//used to index data arrays during data collection
 
int numBytes = 0;
 

	
 
//variables to store data from transmission
 
//least significant digit is stored at location 0 of arrays
 
char tramsmissionType[7];
 

	
 

	
 
void gps_poweron(void)
 
{
 
    // NOTE: pchannel
 
    gpio_clear(GPS_ONOFF);
 
    //gpio_clear(GPS_ONOFF);
 
}
 

	
 
void gps_poweroff(void)
 
{
 
    // NOTE: pchannel
 
    gpio_set(GPS_ONOFF);
 
    //gpio_set(GPS_ONOFF);
 
}
 

	
 
char timestamp[12];	//hhmmss.ss
 
char* get_timestamp() 
 
{
 
	return timestamp;
 
}
 
	
 
char latitude[14];	//lllll.lla
 
char latitudeTmpTRIM[8];
 
char latitudeTmpLSB[4];
 
char* get_latitudeTrimmed() 
 
@@ -163,25 +163,25 @@ enum decodeState {
 
	RMC_LATITUDE,
 
	RMC_LONGITUDE,
 
	RMC_KNOTS,
 
	RMC_COURSE,
 
	RMC_DATE,
 
	RMC_MAG_VARIATION,
 
	
 
}decodeState;
 

	
 

	
 
void usart1_isr(void)
 
{
 
	uint8_t recv = usart_recv(GPS_USART);
 
	uint8_t recv = 0;// usart_recv(GPS_USART);
 
	//ECHO debug: usart_send_blocking(GPS_USART, recv);
 
	nmeaBuffer[nmeaBufferDataPosition % NMEABUFFER_SIZE] = recv;
 
	nmeaBufferDataPosition = (nmeaBufferDataPosition + 1) % NMEABUFFER_SIZE;
 
}
 

	
 
void gps_init() 
 
{
 
    uart_init();
 
    timestamp[0] = 0x00;
 
    latitude[0] = 0x00;
 
    longitude[0] = 0x00;
 
    numSatellites[0] = 0x00;
 
@@ -205,25 +205,25 @@ void gps_init()
 

	
 
    // Set dynamic model 6 (<1g airborne platform)
 
    uint8_t airborne_model[] = { 0xB5, 0x62, 0x06, 0x24, 0x24, 0x00, 0xFF, 0xFF, 0x06, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10, 0x27, 0x00, 0x00, 0x05, 0x00, 0xFA, 0x00, 0xFA, 0x00, 0x64, 0x00, 0x2C, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0xDC };
 
    gps_sendubx(airborne_model, sizeof(airborne_model)/sizeof(uint8_t));
 

	
 
}
 

	
 
void gps_sendubx(uint8_t* dat, uint8_t size)
 
{
 
    uint8_t sendctr;
 
    for(sendctr = 0; sendctr < size; sendctr++)
 
    {
 
        usart_send(GPS_USART, dat[sendctr]);
 
        //usart_send(GPS_USART, dat[sendctr]);
 
    }
 
}
 

	
 
// Could inline if program space available
 
static void setParserState(uint8_t state)
 
{
 
	decodeState = state;
 

	
 
	// If resetting, clear vars
 
	if(state == INITIALIZE)
 
	{
 
		calculatedChecksum = 0;
src/main.c
Show inline comments
 
@@ -42,24 +42,33 @@ void encode_wspr(void)
 
    HAL_Delay(100);
 
 
    // Bring up the chip
 
    si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);
 
    si5351_set_correction(0);
 
    //si5351_set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
 
    //si5351_set_ms_source(SI5351_CLK0, SI5351_PLLA);
 
    si5351_set_freq(WSPR_DEFAULT_FREQ * 100, 0, SI5351_CLK0);
 
    si5351_drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA); // Set for max power if desired (8ma max)
 
    si5351_output_enable(SI5351_CLK0, 1);
 
    //si5351_pll_reset(SI5351_PLLA);
 
 
    // Make sure the other outputs of the SI5351 are disabled
 
    si5351_output_enable(SI5351_CLK1, 0); // Disable the clock initially
 
    si5351_output_enable(SI5351_CLK2, 0); // Disable the clock initially
 
 
    // disable clock powers
 
    si5351_set_clock_pwr(SI5351_CLK1, 0);
 
    si5351_set_clock_pwr(SI5351_CLK2, 0);
 
 
 
    // Encode message to transmit
 
    wspr_encode(call, loc, dbm, tx_buffer);
 
 
    // Key transmitter
 
    si5351_output_enable(SI5351_CLK0, 1);
 
 
    // Loop through and transmit symbols TODO: Do this from an ISR or ISR-triggered main loop function call (optimal)
 
    uint8_t i;
 
    for(i=0; i<symbol_count; i++)
 
    {
 
        uint32_t freq2 = (freq * 100) + (tx_buffer[i] * tone_spacing);
 
        si5351_set_freq(freq2, 0, SI5351_CLK0);
 
@@ -79,25 +88,25 @@ void encode_wspr(void)
 
 
TIM_HandleTypeDef htim1;
 
 
int main(void)
 
{
 
    HAL_Init();
 
 
    sysclk_init();
 
    gpio_init();
 
    dma_init();
 
    adc_init();
 
    i2c_init();
 
    gps_init();
 
//    gps_init();
 
 
    // Disable ICs
 
    HAL_GPIO_WritePin(OSC_NOTEN, 1);
 
    HAL_GPIO_WritePin(TCXO_EN, 0);
 
 
 
    // Start timer for WSPR
 
    __TIM1_CLK_ENABLE();
 
    htim1.Instance = TIM1;
 
    htim1.Init.Prescaler = 512; // gives 64uS ticks from 8MHz ahbclk
 
    htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
 
    htim1.Init.Period = ctc; // Count up to this value (how many 64uS ticks per symbol)
0 comments (0 inline, 0 general)