添加board_config.h作为全部板上IO的宏定义位置，独立soft_i2c为单独文件

src/main.c

@@ -12,6 +12,7 @@
 #include "rs485.h"
 #include "led.h"
 #include "i2c.h"
+#include "soft_i2c.h"
 #include "ldc1612.h"
 #include "tmp112.h"
 
@@ -75,10 +76,26 @@ int main(void) {
     watchdog_init();
 
     while (1) {
-        si2c_config();
+        soft_i2c_config();
         printf("111\n");
 
         i2c_start();
+        i2c_send_byte((0x2B << 1));
+        if (!i2c_wait_ack())
+        {
+            printf("NACK\n");
+        }
+
+
+        i2c_send_byte(0x7E);
+        if (!i2c_wait_ack())
+        {
+            printf("NACK\n");
+        }
+
+        i2c_delay();
+        i2c_start();
+
         i2c_send_byte((0x2B << 1) + 1);
         if (!i2c_wait_ack())
         {
@@ -87,30 +104,11 @@ int main(void) {
 
         i2c_delay();
 
-        i2c_send_byte(0x7E);
-        // if (!i2c_wait_ack())
-        // {
-        //     printf("NACK\n");
-        // }
-
-        i2c_delay();
-        i2c_start();
-
-        i2c_send_byte((0x2B << 1));
-        if (!i2c_wait_ack())
-        {
-            printf("NACK\n");
-        }
-
-        i2c_delay();
-
         data[0] = i2c_receive_byte(1);
-        i2c_delay();
         data[1] = i2c_receive_byte(0);
 
         delay_us(5);
         i2c_stop();
-        // printf("OK\n");
 
         printf("0x%x 0x%x\n", data[0], data[1]);