shao ziyang
mbed library sources
Dependents: frdm_kl05z_gpio_test
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mbed official
Diff: targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/pwmout_api.c
- Revision:
- 172:2f4f8c56b261
- Parent:
- 145:cfacfb0a9e19
- Child:
- 185:e752b4ee7de1
--- a/targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/pwmout_api.c Fri Apr 25 14:45:06 2014 +0100
+++ b/targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/pwmout_api.c Mon Apr 28 16:00:08 2014 +0100
@@ -29,27 +29,28 @@
*/
#include "pwmout_api.h"
+#if DEVICE_PWMOUT
+
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
-#include "stm32f4xx_hal.h"
// TIM5 cannot be used because already used by the us_ticker
static const PinMap PinMap_PWM[] = {
{PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
- //{PA_0, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH1
+// {PA_0, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH1
{PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2
- //{PA_1, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH2
+// {PA_1, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH2
{PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3
- //{PA_2, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH3
- //{PA_2, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1
+// {PA_2, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH3
+// {PA_2, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1
{PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3
- //{PA_3, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH4
- //{PA_3, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2
+// {PA_3, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH4
+// {PA_3, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2
{PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
{PA_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1
{PA_7, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N
- //{PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
+// {PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
{PA_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1
{PA_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2
{PA_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3
@@ -57,18 +58,18 @@
{PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
{PB_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N
- //{PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3
+// {PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3
{PB_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N
- //{PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4
+// {PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4
{PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2
{PB_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1
{PB_5, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
{PB_6, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH1
{PB_7, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH2
{PB_8, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH3
- //{PB_8, PWM_10,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM10)}, // TIM10_CH1
+// {PB_8, PWM_10,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM10)}, // TIM10_CH1
{PB_9, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH4
- //{PB_9, PWM_11,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM11)}, // TIM11_CH1
+// {PB_9, PWM_11,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM11)}, // TIM11_CH1
{PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3
{PB_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N
{PB_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N
@@ -84,14 +85,14 @@
static TIM_HandleTypeDef TimHandle;
-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 error: pinout mapping failed.");
}
-
+
// Enable TIM clock
if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE();
if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE();
@@ -100,23 +101,20 @@
if (obj->pwm == PWM_9) __TIM9_CLK_ENABLE();
if (obj->pwm == PWM_10) __TIM10_CLK_ENABLE();
if (obj->pwm == PWM_11) __TIM11_CLK_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
}
void pwmout_free(pwmout_t* obj) {
- TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
-
- HAL_TIM_PWM_DeInit(&TimHandle);
-
- pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
+ // Configure GPIO
+ pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
}
void pwmout_write(pwmout_t* obj, float value) {
@@ -125,20 +123,20 @@
int complementary_channel = 0;
TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
-
+
if (value < (float)0.0) {
value = 0.0;
} else if (value > (float)1.0) {
value = 1.0;
}
-
+
obj->pulse = (uint32_t)((float)obj->period * value);
- // Configure channels
+ // Configure channels
sConfig.OCMode = TIM_OCMODE_PWM1;
sConfig.Pulse = obj->pulse;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
- sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
+ sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
@@ -146,16 +144,16 @@
switch (obj->pin) {
// Channels 1
case PA_0:
- //case PA_2:
+// case PA_2:
case PA_5:
case PA_6:
case PA_8:
case PA_15:
case PB_4:
case PB_6:
- //case PB_8:
- //case PB_9:
- case PC_6:
+// case PB_8:
+// case PB_9:
+ case PC_6:
channel = TIM_CHANNEL_1;
break;
// Channels 1N
@@ -166,8 +164,8 @@
break;
// Channels 2
case PA_1:
- //case PA_3:
- //case PA_7:
+// case PA_3:
+// case PA_7:
case PA_9:
case PB_3:
case PB_5:
@@ -177,7 +175,7 @@
break;
// Channels 2N
case PB_0:
- case PB_14:
+ case PB_14:
channel = TIM_CHANNEL_2;
complementary_channel = 1;
break;
@@ -185,7 +183,7 @@
case PA_2:
case PA_3:
case PA_10:
- //case PB_0:
+// case PB_0:
case PB_8:
case PB_10:
case PC_8:
@@ -198,17 +196,17 @@
complementary_channel = 1;
break;
// Channels 4
- //case PA_3:
+// case PA_3:
case PA_11:
- //case PB_1:
+// case PB_1:
case PB_9:
- case PC_9:
+ case PC_9:
channel = TIM_CHANNEL_4;
- break;
+ break;
default:
return;
}
-
+
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel);
if (complementary_channel) {
HAL_TIMEx_PWMN_Start(&TimHandle, channel);
@@ -238,9 +236,9 @@
TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
float dc = pwmout_read(obj);
-
+
__HAL_TIM_DISABLE(&TimHandle);
-
+
TimHandle.Init.Period = us - 1;
TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
TimHandle.Init.ClockDivision = 0;
@@ -250,9 +248,9 @@
// Set duty cycle again
pwmout_write(obj, dc);
- // Save for future use
+ // Save for future use
obj->period = us;
-
+
__HAL_TIM_ENABLE(&TimHandle);
}
@@ -268,3 +266,5 @@
float value = (float)us / (float)obj->period;
pwmout_write(obj, value);
}
+
+#endif