Ken Todotani / mbed-src

mbed library sources

Fork of mbed-src by mbed official

Diff: targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pwmout_api.c

Revision:
135:067cc8ba23da
Parent:
125:23cc3068a9e4
Child:
162:937d965048d3
--- a/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pwmout_api.c	Tue Mar 25 09:30:07 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pwmout_api.c	Tue Mar 25 10:15:07 2014 +0000
@@ -35,77 +35,77 @@
 
 // TIM2 cannot be used because already used by the us_ticker
 static const PinMap PinMap_PWM[] = {
-  //{PA_0,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
-  //{PA_1,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH2
+//  {PA_0,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
+//  {PA_1,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH2
     {PA_1,  PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)},  // TIM15_CH1N
     {PA_2,  PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)},  // TIM15_CH1
     {PA_3,  PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)},  // TIM15_CH2
-  //{PA_5,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
+//  {PA_5,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
     {PA_6,  PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1
     {PA_7,  PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM17_CH1
-  //{PA_7,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1N
+//  {PA_7,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1N
     {PA_8,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1
     {PA_9,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2
-  //{PA_9,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH3
+//  {PA_9,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH3
     {PA_10, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH3
-  //{PA_10, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH4
+//  {PA_10, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH4
     {PA_11, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_11)}, // TIM1_CH4
-  //{PA_11, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1N
+//  {PA_11, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1N
     {PA_12, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1
-  //{PA_12, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2N
+//  {PA_12, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2N
     {PA_13, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1N
-  //{PA_15, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
-    
+//  {PA_15, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH1
+
     {PB_0,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2N
     {PB_1,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH3N
-  //{PB_3,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH2
+//  {PB_3,  PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH2
     {PB_4,  PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1
     {PB_5,  PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM17_CH1
     {PB_6,  PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1N
     {PB_7,  PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM17_CH1N
     {PB_8,  PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM16_CH1
     {PB_9,  PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM17_CH1
-  //{PB_10, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH3
-  //{PB_11, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH4
+//  {PB_10, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH3
+//  {PB_11, PWM_2,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM2_CH4
     {PB_13, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH1N
     {PB_14, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM15_CH1
-  //{PB_14, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2N
+//  {PB_14, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH2N
     {PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},  // TIM15_CH2
-  //{PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM15_CH1N
-  //{PB_15, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)},  // TIM1_CH3N
-    
+//  {PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM15_CH1N
+//  {PB_15, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)},  // TIM1_CH3N
+
     {PC_0,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM1_CH1
     {PC_1,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM1_CH2
     {PC_2,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM1_CH3
     {PC_3,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)},  // TIM1_CH4
     {PC_13, PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)},  // TIM1_CH1N
-    
+
     {PF_0,  PWM_1,  STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)},  // TIM1_CH3N
-    
+
     {NC,    NC,     0}
 };
 
-void pwmout_init(pwmout_t* obj, PinName pin) {  
+void pwmout_init(pwmout_t* obj, PinName pin) {
     // Get the peripheral name from the pin and assign it to the object
     obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
-  
+
     if (obj->pwm == (PWMName)NC) {
         error("PWM pinout mapping failed");
     }
-    
+
     // Enable TIM clock
     if (obj->pwm == PWM_1) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
     if (obj->pwm == PWM_15) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15, ENABLE);
     if (obj->pwm == PWM_16) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE);
     if (obj->pwm == PWM_17) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM17, ENABLE);
-    
+
     // Configure GPIO
     pinmap_pinout(pin, PinMap_PWM);
-    
+
     obj->pin = pin;
     obj->period = 0;
     obj->pulse = 0;
-    
+
     pwmout_period_us(obj, 20000); // 20 ms per default
 }
 
@@ -117,33 +117,33 @@
 void pwmout_write(pwmout_t* obj, float value) {
     TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
     TIM_OCInitTypeDef TIM_OCInitStructure;
-  
+
     if (value < (float)0.0) {
         value = (float)0.0;
     } else if (value > (float)1.0) {
         value = (float)1.0;
     }
-   
+
     obj->pulse = (uint32_t)((float)obj->period * value);
 
-    // Configure channels    
+    // Configure channels
     TIM_OCInitStructure.TIM_OCMode       = TIM_OCMode_PWM1;
     TIM_OCInitStructure.TIM_Pulse        = obj->pulse;
     TIM_OCInitStructure.TIM_OCPolarity   = TIM_OCPolarity_High;
     TIM_OCInitStructure.TIM_OCNPolarity  = TIM_OCPolarity_High;
     TIM_OCInitStructure.TIM_OCIdleState  = TIM_OCIdleState_Reset;
     TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
-    
+
     switch (obj->pin) {
         // Channels 1
-        //case PA_0:
+//      case PA_0:
         case PA_2:
-        //case PA_5:
+//      case PA_5:
         case PA_6:
         case PA_7:
         case PA_8:
         case PA_12:
-        //case PA_15:
+//      case PA_15:
         case PB_4:
         case PB_5:
         case PB_8:
@@ -156,23 +156,23 @@
             break;
         // Channels 1N
         case PA_1:
-        //case PA_7:
-        //case PA_11:
+//      case PA_7:
+//      case PA_11:
         case PA_13:
         case PB_6:
         case PB_7:
         case PB_13:
-        //case PB_15:
+//      case PB_15:
         case PC_13:
             TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
             TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable);
             TIM_OC1Init(tim, &TIM_OCInitStructure);
             break;
         // Channels 2
-        //case PA_1:
+//      case PA_1:
         case PA_3:
         case PA_9:
-        //case PB_3:
+//      case PB_3:
         case PB_15:
         case PC_1:
             TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
@@ -180,17 +180,17 @@
             TIM_OC2Init(tim, &TIM_OCInitStructure);
             break;
         // Channels 2N
-        //case PA_12:
+//      case PA_12:
         case PB_0:
-        //case PB_14:
+//      case PB_14:
             TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
             TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable);
             TIM_OC2Init(tim, &TIM_OCInitStructure);
             break;
         // Channels 3
-        //case PA_9:
+//      case PA_9:
         case PA_10:
-        //case PB_10:
+//      case PB_10:
         case PC_2:
             TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
             TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable);
@@ -199,15 +199,15 @@
         // Channels 3N
         case PB_1:
         case PF_0:
-        //case PB_15:
+//      case PB_15:
             TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
             TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable);
             TIM_OC3Init(tim, &TIM_OCInitStructure);
             break;
         // Channels 4
-        //case PA_10:
+//      case PA_10:
         case PA_11:
-        //case PB_11:
+//      case PB_11:
         case PC_3:
             TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
             TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable);
@@ -215,7 +215,7 @@
             break;
         default:
             return;
-    }   
+    }
 }
 
 float pwmout_read(pwmout_t* obj) {
@@ -239,10 +239,10 @@
     TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
     float dc = pwmout_read(obj);
 
-    TIM_Cmd(tim, DISABLE);  
-    
+    TIM_Cmd(tim, DISABLE);
+
     obj->period = us;
-  
+
     TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
     TIM_TimeBaseStructure.TIM_Period = obj->period - 1;
     TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
@@ -252,14 +252,14 @@
 
     // Set duty cycle again
     pwmout_write(obj, dc);
-  
+
     TIM_ARRPreloadConfig(tim, ENABLE);
-  
+
     // Warning: Main Output must be  enabled on TIM1, TIM8, TIM5, TIM6 and TIM17
     if ((obj->pwm == PWM_1) || (obj->pwm == PWM_15) || (obj->pwm == PWM_16) || (obj->pwm == PWM_17)) {
         TIM_CtrlPWMOutputs(tim, ENABLE);
     }
-    
+
     TIM_Cmd(tim, ENABLE);
 }