FeatherHAB/wsprhab Changeset - f126c64d1202

Changeset - f126c64d1202

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Ethan Zonca - 9 years ago 2016-10-11 22:54:04
ez@ethanzonca.com

Actually fill in the correct grid locator!

3 files changed with 45 insertions and 5 deletions:

inc/wspr.h

src/main.c

src/wspr.c

0 comments (0 inline, 0 general)

inc/wspr.h

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@@ @@ -2,10 +2,10 @@ @@
 #define _WSPR_H
 // Prototypes
 void wspr_init(void);
 void wspr_sleep(void);
 void wspr_wakeup(void);
-void wspr_transmit(void);
+void wspr_transmit(uint8_t* grid_locator);
 #endif

src/main.c

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@@ @@ -20,12 +20,14 @@ enum _state @@
+{
     SYSTEM_IDLE = 0, // awaiting RTC interrupt for wakeup TODO wake up before scheduled time to get fix?
     SYSTEM_GPSACQ, // RTC interrupted
     SYSTEM_WSPRTX, // Wait for timeslot and actually transmit the message
 };
 static void __calc_gridloc(char *dst, double lat, double lon);
 int main(void)
+{
     HAL_Init();
     sysclk_init();
@@ @@ -121,18 +123,18 @@ int main(void) @@
                     // TODO: Set RTC for countdown to next transmission timeslot!
                     // TODO: Set wspr countdown timer for this transmission!
                     fix_acq_starttime = 0;
                     state = SYSTEM_WSPRTX;
+                }
                 else if(HAL_GetTick() - fix_acq_starttime > 60000)
                 // If no fix in 2 minutes
                 else if(HAL_GetTick() - fix_acq_starttime > 120000)
+                {
                 	  // Flash error code and go to idle probably? or just try forever?
                 	led_blink(4);
+                }
             } break;
             // Wait for wspr timeslot and start transmitting
             case SYSTEM_WSPRTX:
+            {
@@ @@ -143,13 +145,19 @@ int main(void) @@
             	// If we're after the minute but not more than 2s after the minute, start tx
             	if(HAL_GetTick() >= nextwspr_time)
+            	{
             		if(HAL_GetTick() < nextwspr_time + 2000)
+            		{
 						wspr_transmit();
             			volatile double latitude_flt = (double)gps_getdata()->latitude / 10000000.0;
             			volatile double longitude_flt = (double)gps_getdata()->longitude / 10000000.0;
             			volatile uint8_t grid_locator[7];
             			__calc_gridloc(grid_locator, latitude_flt, longitude_flt);
 						wspr_transmit(grid_locator);
 						last_wspr_tx_time = HAL_GetTick();
 						state = SYSTEM_IDLE;
+            		}
             		else
+            		{
             			// Window was missed, go back to idle, and try again after time delay
@@ @@ -173,8 +181,35 @@ int main(void) @@
+        }
+    }
+}
 static void __calc_gridloc(char *dst, double lat, double lon)
+{
 	int o1, o2, o3;
 	int a1, a2, a3;
 	double remainder;
 	// longitude
 	remainder = lon + 180.0;
 	o1 = (int)(remainder / 20.0);
 	remainder = remainder - (double)o1 * 20.0;
 	o2 = (int)(remainder / 2.0);
 	remainder = remainder - 2.0 * (double)o2;
 	o3 = (int)(12.0 * remainder);
 	// latitude
 	remainder = lat + 90.0;
 	a1 = (int)(remainder / 10.0);
 	remainder = remainder - (double)a1 * 10.0;
 	a2 = (int)(remainder);
 	remainder = remainder - (double)a2;
 	a3 = (int)(24.0 * remainder);
 	dst[0] = (char)o1 + 'A';
 	dst[1] = (char)a1 + 'A';
 	dst[2] = (char)o2 + '0';
 	dst[3] = (char)a2 + '0';
 	dst[4] = (char)o3 + 'A';
 	dst[5] = (char)a3 + 'A';
 	dst[6] = (char)0;
+}

src/wspr.c

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@@ @@ -58,14 +58,19 @@ void wspr_wakeup(void) @@
+{
     HAL_TIM_Base_Start_IT(&htim1);
+}
 // Bring up TCXO and oscillator IC
-void wspr_transmit(void)
+void wspr_transmit(uint8_t* grid_locator)
+{
 	// Copy 4 digit grid locator to local buffer; null terminate
 	for(uint8_t i=0; i<4; i++)
 		loc[i] = grid_locator[i];
 	loc[4] = '\0';
     HAL_GPIO_WritePin(OSC_NOTEN, 0);
     HAL_GPIO_WritePin(TCXO_EN, 1);
     HAL_Delay(100);
     // Bring up the chip
     si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);

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