YKNCT / YKNCT_I2C_lib

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   arim_AutoMachine

Diff: YKNCT_I2C.cpp

Revision:
18:c631bf8fc741
Parent:
15:23cf4a802b5b
Child:
21:e861258373e2
--- a/YKNCT_I2C.cpp	Mon Apr 29 16:26:19 2019 +0000
+++ b/YKNCT_I2C.cpp	Wed May 08 16:41:07 2019 +0000
@@ -12,19 +12,22 @@
 
 void Y_I2C::Out(OUT_I2C_Data_TypeDef *OUT_I2C_Data, uint8_t MAX)
 {
-    int cnt=0;
-    int i=0;
+    int cnt=0; //何個出力したかを保存する
+    int ad_cnt=0; //同じアドレスの数を保存する
     while(cnt<MAX) {
         char data=0;
-        int tmp=(OUT_I2C_Data+cnt)->DevAddress;
-        for(i=0;; i++) {
-            if(tmp!=(OUT_I2C_Data+cnt+i)->DevAddress)
+        int tmp_address=(OUT_I2C_Data+cnt)->DevAddress;
+        
+        //同じアドレスの数を数える
+        for(ad_cnt=0;; ad_cnt++) {
+            if(tmp_address!=(OUT_I2C_Data+cnt+ad_cnt)->DevAddress)
                 break;
         }
-        for(int j=0; j<=i; j++) data|=(OUT_I2C_Data+cnt+j)->out_data<<j;
+        //一枚の基板に出力するデータを格納する
+        for(int j=0; j<ad_cnt; j++) data|=(OUT_I2C_Data+cnt+j)->out_data<<j;
 
         i2c.write((OUT_I2C_Data+cnt)->DevAddress<<1, &data, 1);
-        cnt+=i;
+        cnt+=ad_cnt;
     }
 }