Diff: DATA_PC/data_pc.cpp

Revision:

0:d80c66cb1b3a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DATA_PC/data_pc.cpp	Tue Nov 10 09:09:58 2020 +0000
@@ -0,0 +1,65 @@
+#include "data_pc.h"
+
+Serial pc(PA_2, PA_3);              // tx, rx U2 min
+
+
+int pc_control = 0;                                                              // 命令帧标志位
+unsigned int flag_A = 0, flag_B = 0;
+unsigned int pc_num = 0;
+
+uint16_t phase_flag_get[1] = {0};
+uint16_t phase_flag_use[1] = {0};
+unsigned int phase_flag = 0;
+
+void pc_decode(){
+    phase_flag = phase_flag_use[0];
+}
+
+void pc_clear(){
+    phase_flag_use[0] = 0;
+}
+
+void serial_pc_isr(){
+    while(pc.readable()){
+        uint16_t c=pc.getc();
+        if(c == 'A'){
+            flag_A = 1;
+            flag_B = 0;
+            pc_num = 0;
+            phase_flag_get[0] = 0;
+            break; 
+        }
+        if(c == 'B'){
+            flag_B = 1;
+        }
+        if(flag_A == 1){
+            if((flag_B != 1) && (pc_num < 1))
+            {
+                phase_flag_get[pc_num] = c;    
+            }
+            pc_num++;
+            
+            if((flag_B == 1) && (pc_num != 2))
+            {                        
+                flag_A = 0;
+                flag_B = 0; 
+                pc_num   = 0;     
+            }
+            if((flag_B == 1) && (pc_num == 2))
+            {                        
+                flag_A = 0;
+                flag_B = 0; 
+                pc_num   = 0; 
+                
+                phase_flag_use[0] = phase_flag_get[0] - '0'; 
+                pc_decode();
+                
+                pc.printf("%d", phase_flag);                                                    // 命令帧接收成功   
+                
+                pc_clear();
+                
+            }
+            pc_control = 1;                                                      
+        } 
+    }
+}
\ No newline at end of file