Diff: main.cpp

Revision:

0:18d54d648967

Child:

1:af207f38ed4a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Mar 26 12:37:18 2019 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+#include <stm32l432xx.h>
+
+
+#define PWM_PERIOD_COUNT 1000
+
+/*
+For register definitions see here:
+https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/stm32l432xx.h
+*/
+#define BUF_SIZE 99
+
+// Using the MBED libraries to configure the PWM outputs (its easier than 
+// calculating all of the register contents by hand)
+DigitalOut myled(LED1);
+PwmOut  PhaATop(PA_8); 
+
+void initTimer1()
+{    
+    
+    TIM1->CR1 = 0; // make sure Counter is disabled before changing configuration
+    TIM1->CR2 = 0;
+    TIM1->PSC = 1;
+    TIM1->ARR = PWM_PERIOD_COUNT;
+    TIM1->CCR1 = PWM_PERIOD_COUNT/4; // 25% duty
+    // Enable channel 1
+    TIM1->CCER = 1;
+    TIM1->SR = 0;      // Clear flags.    
+    TIM1->CR1 |= 1; // enable counter
+
+}
+
+int main() {    
+   
+    initTimer1();
+    while(1) {
+       
+    }
+}