初版

SDK/cpu/periph_demo/ir_encoder_decoder_demo.c

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+#include "ir_encoder.h"
+#include "ir_decoder.h"
+#include "clock.h"
+#include "gpio.h"
+#include "debug.h"
+#include "gptimer.h"
+
+extern void wdt_clear();
+
+void ir_encoder_demo()
+{
+    printf("ir_encoder_demo()\n");
+    ir_encoder_init(IO_PORTA_01, 38000, 3000); //红外信号输出IO_PORTA_00, 频率38000, 占空比30.00%
+    /* ir_encoder_init(IO_PORTA_00, 38000, 10000); //红外信号输出IO_PORTA_00, 频率38000, 占空比100.00% */
+
+    u8 addr = 0x4c; //设置红外地址 0x4c
+    u8 cmd = 0x4a; //设置红外命令 0x4a
+    u8 repeat_en = 1; //重复发送使能
+    ir_encoder_tx(addr, cmd, repeat_en);
+    udelay(2 * 1000 * 1000);
+    ir_encoder_repeat_stop(); //停止发送
+    gptimer_dump();
+    while (1) {
+        wdt_clear();
+    }
+}
+
+const struct gptimer_config ir_decode_config = {
+    .capture.filter = 0,//38000,
+    .capture.max_period = 110 * 1000, //110ms
+    .capture.port = PORTC,
+    .capture.pin = BIT(4),
+    .irq_cb = NULL,
+    .irq_priority = 3,
+    //根据红外模块的 idle 电平状态，选择边沿触发方式
+    /* .mode = GPTIMER_MODE_CAPTURE_EDGE_FALL, */
+    .mode = GPTIMER_MODE_CAPTURE_EDGE_RISE,
+};
+void ir_decoder_demo()
+{
+    printf("ir_decoder_demo()\n");
+    ir_decoder_init(&ir_decode_config); //红外信号接收IO_PORTA_O1
+    u32 ir_key; //接收到的红外码
+    while (1) {
+        ir_key = ir_decoder_get_data();
+        if (ir_key != (u32) - 1) {
+            printf("ir_key:0x%x\n", ir_key);
+        }
+        udelay(5 * 100 * 1000);
+        wdt_clear();
+    }
+}
+
+void ir_encoder_decoder_demo()
+{
+    printf("ir_encoder_decoder_demo()\n");
+    //设置红外发送
+    u8 addr = 0;
+    u8 cmd = 0x80;
+    u8 repeat_en = 0;
+    ir_encoder_init(IO_PORTC_03, 38000, 3000); //红外信号输出IO_PORTA_00, 频率38000, 占空比30.00%
+    /* ir_encoder_init(IO_PORTC_03, 38000, 10000); //红外信号输出IO_PORTA_00, 频率0, 占空比100.00% */
+
+    //设置红外接收
+    ir_decoder_init(&ir_decode_config); //红外信号接收IO_PORTA_O1
+
+    u32 ir_key; //接收到的红外码
+    u32 time_cnt = 0;
+    while (1) {
+        ir_key = ir_decoder_get_data(); //NEC数据排列格式:(命令反码 + 命令码 + 地址反码 +地址码)
+        //提供以下接口使用, 获取接口每调用一次,内部接收到的数据会清掉
+        /* u32 ir_cmd = ir_decoder_get_command_value(); */
+        /* u32 ir_cmd = ir_decoder_get_command_value_uncheck(); */
+        /* u32 ir_addr = ir_decoder_get_address_value(); */
+        /* u32 ir_addr = ir_decoder_get_address_value_uncheck(); */
+        if (ir_key != (u32) - 1) {
+            printf("ir_key:0x%x\n", ir_key);
+        }
+        if (time_cnt % 2) {
+            ir_encoder_tx(addr, cmd, repeat_en);
+            addr++;
+            cmd++;
+        }
+        time_cnt++;
+        udelay(1 * 1000 * 1000);
+        wdt_clear();
+    }
+}
+
+