update package/pikaRTDevice/pikaRTDevice_PWM.c.

package/pikaRTDevice/pikaRTDevice_PWM.c

@@ -3,21 +3,32 @@
 #include <rtthread.h>
 
 struct rt_device_pwm* PWM_getDevice(PikaObj* self) {
+#ifdef RT_USING_PWM
     char* name = obj_getStr(self, "name");
     rt_device_t pwm_device = rt_device_find(name);
     if(NULL == pwm_device){
         printf("[error] PWM: device \"%s\" no found.\r\n", name);
     }
     return (struct rt_device_pwm*)pwm_device;
+#else
+    __platform_printf("[error]: gpio driver is no enable, please check the RT_USING_PWM macro. \r\n");
+    while(1);
+#endif
 }
 
 void pikaRTDevice_PWM_platformEnable(PikaObj* self) {
+#ifdef RT_USING_PWM
     struct rt_device_pwm* pwm_dev = PWM_getDevice(self);
     int ch = obj_getInt(self, "ch");
     rt_pwm_enable(pwm_dev, ch);
+#else
+    __platform_printf("[error]: gpio driver is no enable, please check the RT_USING_PWM macro. \r\n");
+    while(1);
+#endif
 }
 
 void pikaRTDevice_PWM_platformSetDuty(PikaObj* self) {
+#ifdef RT_USING_PWM
     struct rt_device_pwm* pwm_dev = PWM_getDevice(self);
     int ch = obj_getInt(self, "ch");
     int freq = obj_getInt(self, "freq");
@@ -25,8 +36,17 @@ void pikaRTDevice_PWM_platformSetDuty(PikaObj* self) {
     int period = (int)((1.0 / (float)freq) * 1000 * 1000);
     int pulse = (int)((float)period * duty);
     rt_pwm_set(pwm_dev, ch, period, pulse);
+#else
+    __platform_printf("[error]: gpio driver is no enable, please check the RT_USING_PWM macro. \r\n");
+    while(1);
+#endif
 }
 
 void pikaRTDevice_PWM_platformSetFrequency(PikaObj* self) {
+#ifdef RT_USING_PWM
     pikaRTDevice_PWM_platformSetDuty(self);
+#else
+    __platform_printf("[error]: gpio driver is no enable, please check the RT_USING_PWM macro. \r\n");
+    while(1);
+#endif
 }