Diff: main.cpp

Revision:

0:45ec5ead6731

Child:

1:f0126d924ff8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 13 07:20:21 2021 +0000
@@ -0,0 +1,47 @@
+#include "mbed.h"
+
+I2C         i2c( p28, p27 );
+InterruptIn int_signal( p21 );
+
+
+#define     TARG_ADDRESS            0x50
+#define     FuncID_WRITE_BUFFER     0x00
+#define     FuncID_ClearIntrrupt    0xF1
+
+#define     SS_BITMAP       0x01
+
+volatile int    int_flag    = false;
+
+void int_handler()
+{
+    int_flag    = true;
+}
+
+int main()
+{
+    char    s[ 256 + 1 ];
+    char    int_clear   = FuncID_ClearIntrrupt;
+
+    int_signal.mode( PullUp );
+    int_signal.fall( &int_handler );
+    i2c.frequency( 400 * 1000 );
+
+    s[ 0 ]  = FuncID_WRITE_BUFFER | SS_BITMAP;
+
+    for ( int i = 0; i < 256; i++ ) {
+        *(s + i + 1)    = i;
+    }
+
+
+    while(1) {
+        i2c.write( TARG_ADDRESS, s, sizeof( s ) );
+
+        while ( !int_flag )
+            ;
+            
+        i2c.write( TARG_ADDRESS, &int_clear, sizeof( int_clear ) );
+        int_flag    = false;
+
+        wait_ms( 2 );
+    }
+}