Configure 38 kHz PWM output on A8

halconf.h

  * @brief   Enables the PWM subsystem.
  */
 #if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
-#define HAL_USE_PWM                 FALSE
+#define HAL_USE_PWM                 TRUE
 #endif
 
 /**

mcuconf.h

  * PWM driver system settings.
  */
 #define STM32_PWM_USE_ADVANCED              FALSE
-#define STM32_PWM_USE_TIM1                  FALSE
+#define STM32_PWM_USE_TIM1                  TRUE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
 #define STM32_PWM_USE_TIM4                  FALSE

src/main.c

 
 #include "ch.h"
 #include "hal.h"
-#include "ch_test.h"
+
+static PWMConfig pwmcfg = {
+    380000,                                  /* 1MHz PWM clock frequency. */
+    10,                                     /* Initial PWM period 1ms.   */
+    NULL,
+    {
+        {PWM_OUTPUT_ACTIVE_HIGH, NULL},
+        {PWM_OUTPUT_DISABLED, NULL},
+        {PWM_OUTPUT_DISABLED, NULL},
+        {PWM_OUTPUT_DISABLED, NULL}
+    },
+    0,
+    0
+};
 
 /*
  * Green LED blinker thread, times are in milliseconds.
 static THD_FUNCTION(Thread1, arg) {
 
     (void)arg;
-    chRegSetThreadName("blinker");
     while (true) {
         palClearPad(GPIOC, GPIOC_LED);
         chThdSleepMilliseconds(500);
     halInit();
     chSysInit();
 
-    /*
-     * Activates the serial driver 2 using the driver default configuration.
-     */
-    sdStart(&SD2, NULL);
-
     /*
      * Creates the blinker thread.
      */
     chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
 
+    pwmStart(&PWMD1, &pwmcfg);
+    palSetPadMode(GPIOA, 8, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+    pwmEnableChannel(&PWMD1, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 5000));
     /*
      * Normal main() thread activity, in this demo it does nothing except
      * sleeping in a loop and check the button state.
      */
     while (true) {
-        //if (!palReadPad(GPIOC, GPIOC_BUTTON))
-        //  test_execute((BaseSequentialStream *)&SD2);
         chThdSleepMilliseconds(500);
     }
 }