FeatherHAB/wsprhab Changeset - fb8415e8edb9

Changeset - fb8415e8edb9

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Ethan Zonca - 9 years ago 2016-10-13 21:38:35
ez@ethanzonca.com

Add sleep to most functional modes; decrease clock speed to 2MHz from 8Mhz to save power

2 files changed with 17 insertions and 1 deletions:

src/main.c

src/system.c

0 comments (0 inline, 0 general)

src/main.c

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@@ @@ -99,6 +99,10 @@ int main(void) @@
+            {
                 blink_rate = BLINK_SLOW;
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 // Wait for RTC wakeup interrupt
                 //wfi();
                 //enter_sleep();
@@ @@ -112,6 +116,11 @@ int main(void) @@
             case SYSTEM_GPSACQ:
+            {
                 blink_rate = BLINK_FAST;
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 if(!gps_ison())
+                {
@@ @@ -176,6 +185,13 @@ int main(void) @@
             			state = SYSTEM_IDLE;
+            		}
+                }
             	else
+            	{
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
+            	}
                 // Schedule next wakeup (maybe 2mins prior ot timeslot if no osc trim)
                 // Next wakeup should enter SYSTEM_GPSACQ state...

src/system.c

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@@ @@ -44,7 +44,7 @@ void sysclk_init(void) @@
     RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                                 |RCC_CLOCKTYPE_PCLK1;
     RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
-    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV4;
     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
     HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);

0 comments (0 inline, 0 general)