first commit

DIMMER_TEST_2/hw_timer.h

@@ -0,0 +1,49 @@
+#ifndef HW_TIMER_H
+#define HW_TIMER_H
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#define US_TO_RTC_TIMER_TICKS(t)          \
+    ((t) ?                                   \
+     (((t) > 0x35A) ?                   \
+      (((t)>>2) * ((APB_CLK_FREQ>>4)/250000) + ((t)&0x3) * ((APB_CLK_FREQ>>4)/1000000))  :    \
+      (((t) *(APB_CLK_FREQ>>4)) / 1000000)) :    \
+     0)
+
+#define FRC1_ENABLE_TIMER  BIT7
+#define FRC1_AUTO_LOAD  BIT6
+
+//TIMER PREDIVED MODE
+typedef enum {
+    DIVDED_BY_1 = 0,    //timer clock
+    DIVDED_BY_16 = 4, //divided by 16
+    DIVDED_BY_256 = 8,  //divided by 256
+} TIMER_PREDIVED_MODE;
+
+typedef enum {      //timer interrupt mode
+    TM_LEVEL_INT = 1, // level interrupt
+    TM_EDGE_INT   = 0,  //edge interrupt
+} TIMER_INT_MODE;
+
+typedef enum {
+    FRC1_SOURCE = 0,
+    NMI_SOURCE = 1,
+} FRC1_TIMER_SOURCE_TYPE;
+
+
+void  hw_timer_arm(u32 val);
+void  hw_timer_set_func(void (* user_hw_timer_cb_set)(void));
+void  hw_timer_init(FRC1_TIMER_SOURCE_TYPE source_type, u8 req);
+//void ICACHE_RAM_ATTR blink_gpio(void);
+//volatile bool state;
+
+
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif  /* HW_TIMER_H */  
+