smoke test

libraries/ms-common/inc/hw_timer.h

@@ -0,0 +1,15 @@
+#pragma once
+#include "stm32f10x_tim.h"
+#include "stm32f10x_rcc.h"
+#include "status.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+
+typedef void (*HardwareTimerCallback) (void);
+
+
+StatusCode hardware_timer_init_and_start(uint32_t duration_us, HardwareTimerCallback callback);
+
+StatusCode hardware_timer_interrupt(uint32_t duration_us);

libraries/ms-common/src/arm/hw_timer.c

@@ -0,0 +1,71 @@
+
+#include "hw_timer.h"
+
+
+typedef struct {
+    TIM_TypeDef *TIMX;
+    bool state;
+    uint32_t ABP_periph; 
+    HardwareTimerCallback callback;
+} HWTimerData;
+
+//Timers configuration 
+static HWTimerData s_timer[3] = {
+    {TIM2, false, , NULL},
+    {TIM3, false, RCC_APB1Periph_TIM3, NULL},
+    {TIM4, false, RCC_APB1Periph_TIM4, NULL}
+};
+
+// HardwareTimerCallback htim2, htim3, htim4;
+void TIM2_IRQHandler(void) {
+    s_timer[0].callback();
+}
+void TIM3_IRQHandler(void) {
+        s_timer[1].callback();
+}
+void TIM4_IRQHandler(void) {
+        s_timer[2].callback();
+}
+
+
+StatusCode hardware_timer_init_and_start(uint32_t duration_us, HardwareTimerCallback callback){
+    //Timer array for which timers are in use.
+
+    // TIM_TypeDef *TIMX;
+    for (int i = 0; i < 3; i++){
+        if (!s_timer[i].state){
+            s_timer[i].state = true;
+            s_timer[i].callback = callback;
+
+
+            RCC_APB1PeriphClockCmd(s_timer[i].ABP_periph, ENABLE);
+
+
+            TIM_TimeBaseInitTypeDef config = {
+            72 - 1, // replace this using clock speed / 1000000
+            TIM_CounterMode_Up, 
+            duration_us - 1, 
+            TIM_CKD_DIV1, 
+            0
+            };
+
+            TIM_TimeBaseInit(s_timer[i].TIMX, &config); // configs timer
+
+
+            // enable update interrupt for timer
+            TIM_ITConfig(s_timer[i].TIMX, TIM_IT_Update, ENABLE);
+
+
+            // enable timer
+            TIM_Cmd(s_timer[i].TIMX, ENABLE);
+
+            return STATUS_CODE_OK;
+
+        } else {
+            //All timers are in use
+            return STATUS_CODE_RESOURCE_EXHAUSTED;
+        }
+    }
+    return STATUS_CODE_OK;
+}
+

smoke/hardware_timer/src/main.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+
+#include "log.h"
+#include "tasks.h"
+#include "hw_timer.h"
+
+void hardware_callback(void){
+  LOG_DEBUG("STARTED");
+}
+
+TASK(HWTimer, TASK_STACK_512) {
+  LOG_DEBUG("STARTING TASKS \n");
+    StatusCode status = hardware_timer_init_and_start(1000, hardware_callback);
+    LOG_DEBUG("code : %d\n", status);
+    if (hardware_timer_init_and_start(1000, hardware_callback) != STATUS_CODE_OK) LOG_DEBUG("ERROR 1 \n");
+    vTaskDelay(1000);
+    if (hardware_timer_init_and_start(40,hardware_callback ) != STATUS_CODE_OK) LOG_DEBUG("ERROR 2\n");
+    vTaskDelay(1000);
+    if (hardware_timer_init_and_start(1, hardware_callback) != 0) LOG_DEBUG("ERROR 3\n");
+    vTaskDelay(1000);
+    if (hardware_timer_init_and_start(1, hardware_callback) == 0) LOG_DEBUG("ERROR 4\n");
+    vTaskDelay(1000);
+}
+
+
+
+// in callbacks do log debug
+// time how long between the on/off takes for the led pin itself. 
+// use oscilloscope to test the timing, to see delay of the 
+
+int main() {
+  tasks_init();
+  log_init();
+  LOG_DEBUG("Welcome to TEST!");
+  tasks_init_task(HWTimer, 3, NULL);
+
+  tasks_start();
+
+  LOG_DEBUG("exiting main?");
+  return 0;
+}