timer int LED

CHIRP/board/timer.c

@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdint.h>
+#include "gd32e23x.h"
+#include "timer.h"
+#include "gd32e23x.h"
+#include "chirp_board_config.h"
+#include "board_init.h"
+
+void timer_config(void)
+{
+    timer_oc_parameter_struct timer_ocinitpara;
+    timer_parameter_struct timer_initpara;
+
+    rcu_periph_clock_enable(RCU_TIMER2);
+    timer_deinit(TIMER2);
+    timer_struct_para_init(&timer_initpara);
+    timer_initpara.prescaler         = (80) - 1;
+    timer_initpara.alignedmode       = TIMER_COUNTER_EDGE;
+    timer_initpara.counterdirection  = TIMER_COUNTER_UP;
+    timer_initpara.period            = 19999;
+    timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;
+    timer_initpara.repetitioncounter = 0;
+    timer_init(TIMER2, &timer_initpara);
+    timer_initpara.period            = 9999;
+    timer_init(TIMER2, &timer_initpara);
+
+    timer_channel_output_struct_para_init(&timer_ocinitpara);
+    timer_ocinitpara.outputstate  = TIMER_CCX_ENABLE;
+    timer_ocinitpara.ocpolarity   = TIMER_OC_POLARITY_HIGH;
+    timer_ocinitpara.ocidlestate  = TIMER_OC_IDLE_STATE_LOW;
+    timer_channel_output_config(TIMER2, TIMER_CH_0, &timer_ocinitpara);
+
+    timer_auto_reload_shadow_enable(TIMER2);
+    timer_interrupt_enable(TIMER2, TIMER_INT_CH0);
+    timer_enable(TIMER2);
+
+    nvic_irq_enable(TIMER2_IRQn, 2);
+}

CHIRP/board/timer.h

@@ -0,0 +1,8 @@
+#ifndef TIMER_H
+#define TIMER_H
+
+void timer_config(void);
+
+
+
+#endif /* TIMER_H */