ST / Mbed 2 deprecated DISCO_L476VG_Sleep

Basic example showing how to use the sleep/deepsleep modes on the DISCO_L476VG board.

Dependencies:   BSP_DISCO_L476VG LCD_DISCO_L476VG mbed

Files at this revision

API Documentation at this revision

Revision 2:3201a7da544e, committed 2017-07-06

Comitter:
jeromecoutant
Date:
Thu Jul 06 13:57:53 2017 +0000
Parent:
1:fed4a49ed6ff
Commit message:
Update after MBED rev145; (new L4 cube version);

Changed in this revision

BSP_DISCO_L476VG.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- a/BSP_DISCO_L476VG.lib	Tue Jun 06 14:56:42 2017 +0200
+++ b/BSP_DISCO_L476VG.lib	Thu Jul 06 13:57:53 2017 +0000
@@ -1,1 +1,1 @@
-https://developer.mbed.org/teams/ST/code/BSP_DISCO_L476VG/#792b4cbebcb6
+https://developer.mbed.org/teams/ST/code/BSP_DISCO_L476VG/#23fea64454eb

--- a/main.cpp	Tue Jun 06 14:56:42 2017 +0200
+++ b/main.cpp	Thu Jul 06 13:57:53 2017 +0000
@@ -8,35 +8,35 @@
 
 InterruptIn joy_down(JOYSTICK_DOWN);
 InterruptIn joy_up(JOYSTICK_UP);
-
-Ticker app_ticker;
+InterruptIn joy_center(JOYSTICK_CENTER);
 
-int deepsleep_mode;
+#define MODE_WAKEUP     0  // IDD=19mA
+#define MODE_SLEEP      1  // IDD=10mA
+#define MODE_DEEP_SLEEP 2  // IDD= 1mA
 
-void SystemClockConfig(void);
-void LowPowerConfiguration(void);
+static int deepsleep_mode = MODE_WAKEUP;
 
+// Used to enter in wake up mode
 void wakeup_tasks()
 {
     led_green = 1;
+    led_red = 1;
     lcd.Clear();
+    printf("WAKEUP\n");
     lcd.DisplayString((uint8_t *)"WAKEUP");
-    wait(0.5);
+    deepsleep_mode = MODE_WAKEUP;
 }
 
 // Used to enter in deepsleep mode
 void joy_down_pressed()
 {
-    led_red = 1;
-    deepsleep_mode = 1;
-    wait(0.5);
+    deepsleep_mode = MODE_DEEP_SLEEP;
 }
 
-// Used to exit from deepsleep mode
+// Used to enter in sleep mode
 void joy_up_pressed()
 {
-    led_green = 1;
-    deepsleep_mode = 0;
+    deepsleep_mode = MODE_SLEEP;
 }
 
 int main()
@@ -44,147 +44,36 @@
     led_green = 1;
     led_red = 1;
     lcd.Clear();
+    printf("HELLO\n");
     lcd.DisplayString((uint8_t *)"HELLO");
-    wait(1.0);
 
     // Configure the buttons
     joy_down.rise(&joy_down_pressed);
     joy_down.mode(PullDown);
     joy_up.rise(&joy_up_pressed);
     joy_up.mode(PullDown);
-
-    deepsleep_mode = 0;
-
-    LowPowerConfiguration();
+    joy_center.rise(&wakeup_tasks);
+    joy_center.mode(PullDown);
 
     while(1) {
 
-        SystemClockConfig();
-
-        app_ticker.detach();
-        app_ticker.attach(&wakeup_tasks, 5.0); // Wake-up every 5 seconds
-
-        led_green = 0;
-        led_red = 0;
-        lcd.Clear();
-
-        if (deepsleep_mode == 0) {
+        if (deepsleep_mode == MODE_SLEEP) {
+            lcd.Clear();
+            printf("SLEEP\n");
             lcd.DisplayString((uint8_t *)"SLEEP");
+            led_red = 0;
+            wait(1);
             sleep();
-        } else {
-            // Ensure that MSI is the wake-up system clock
-            HAL_RCCEx_WakeUpStopCLKConfig(RCC_STOP_WAKEUPCLOCK_MSI);
-            __HAL_RCC_PWR_CLK_ENABLE();
-            HAL_PWREx_DisableLowPowerRunMode();
-            lcd.DisplayString((uint8_t *)"DSLEEP");
+            wakeup_tasks();
+        }
+        if (deepsleep_mode == MODE_DEEP_SLEEP) {
+            lcd.Clear();
+            printf("DEEP_SLEEP\n");
+            lcd.DisplayString((uint8_t *)"DEEP");
+            led_green = 0;
+            wait(.1);
             deepsleep();
+            wakeup_tasks();
         }
     }
 }
-
-void SystemClockConfig(void)
-{
-    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
-    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
-
-    /* MSI 2 MHz as source clock for Low Power Run mode */
-    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
-    RCC_OscInitStruct.MSIState = RCC_MSI_ON;
-    RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_5; // 2 MHz
-    RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
-    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_OFF;
-    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
-        // Error
-    }
-
-    /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
-       clocks dividers */
-    RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
-    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;
-    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
-    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
-    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
-    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) {
-        // Error
-    }
-
-    /* The voltage scaling allows optimizing the power consumption when the device is
-       clocked below the maximum system frequency, to update the voltage scaling value
-       regarding system frequency refer to product datasheet.  */
-
-    /* Enable Power Control clock */
-    __HAL_RCC_PWR_CLK_ENABLE();
-
-    if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE2) != HAL_OK) {
-        // Error
-    }
-
-    /* Enter Low Power Run mode */
-    HAL_PWREx_EnableLowPowerRunMode();
-
-    /* Disable Power Control clock */
-    __HAL_RCC_PWR_CLK_DISABLE();
-
-    SystemCoreClockUpdate();
-}
-
-// This is just an example of configuration !!!
-void LowPowerConfiguration(void)
-{
-    GPIO_InitTypeDef GPIO_InitStruct;
-
-    // Configure all unused GPIOs in Analog Input mode
-    // Used GPIOs are:
-    // LED1: PA8
-    // LED2: PB2
-    // Joystick Up/Down: PA3,5
-    // LCD: PA6..10,15 + PB0,1,4,5,9,12..15 + PC3..8 + PD8..15
-    // SWD: PA13,14
-    GPIO_InitStruct.Mode      = GPIO_MODE_ANALOG;
-    GPIO_InitStruct.Pull      = GPIO_NOPULL;
-    GPIO_InitStruct.Speed     = GPIO_SPEED_LOW;
-
-    __HAL_RCC_GPIOA_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_4|
-                                GPIO_PIN_11|GPIO_PIN_12;
-    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
-    __HAL_RCC_GPIOB_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_3|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|
-                                GPIO_PIN_10|GPIO_PIN_11;
-    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
-    __HAL_RCC_GPIOC_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_9|
-                                GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|
-                                GPIO_PIN_14|GPIO_PIN_15;
-    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
-    __HAL_RCC_GPIOD_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|
-                                GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
-    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
-
-    __HAL_RCC_GPIOE_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|
-                                GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|
-                                GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|
-                                GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
-    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
-
-    __HAL_RCC_GPIOH_CLK_ENABLE();
-    GPIO_InitStruct.Pin       = GPIO_PIN_0|GPIO_PIN_1;
-    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
-
-    // Disable peripherals clock
-    __HAL_RCC_GPIOH_CLK_DISABLE();
-
-    // Disable peripherals clock in Sleep/Stop mode
-    // Keep TIMER5 used for the ticker
-    RCC->AHB1SMENR  = 0x0;
-    RCC->AHB2SMENR  = 0x0;
-    RCC->AHB3SMENR  = 0x0;
-    RCC->APB1SMENR1 = RCC_APB1SMENR1_TIM5SMEN;
-    RCC->APB1SMENR2 = 0x0;
-    RCC->APB2SMENR  = 0x0;
-}

--- a/mbed.bld	Tue Jun 06 14:56:42 2017 +0200
+++ b/mbed.bld	Thu Jul 06 13:57:53 2017 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/86740a56073b
\ No newline at end of file
+https://mbed.org/users/mbed_official/code/mbed/builds/64910690c574
\ No newline at end of file