Diff: main.cpp

Revision:

0:4cab8e431853

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 28 02:12:40 2017 +0000
@@ -0,0 +1,75 @@
+#include "mbed.h"
+#include "font_5x7.h"
+
+// I2C address
+int DoT_ADDR = 0x71<<1;
+
+I2C Dotmatrix(I2C_SDA, I2C_SCL);
+
+char Data_BUF[17] = {0, 0 ,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+void data_write(char *data, int len);
+void Command_Write(uint8_t com);
+void Dotmatrix_init(void);
+void char_data_write(char data);
+
+int main()
+{
+    uint8_t C_Data = 0x21;
+    Dotmatrix_init();
+    //data_write(Data_BUF, 17);
+    
+    while(1){
+        char_data_write(C_Data++);
+        if(C_Data == 0x80)
+            C_Data = 0x21;
+        wait(0.8);
+    }
+}
+
+void data_write(char *data, int len)
+{
+    data[0] = 0;
+    Dotmatrix.write(DoT_ADDR, data, len);
+}
+
+void Command_Write(char com)
+{
+    Dotmatrix.write(DoT_ADDR, &com, 1);
+}
+
+void Dotmatrix_init(void)
+{
+    // Internal System Clock enable
+    Command_Write((char)0x21);
+    // INT/ROW output pin Set -> ROW Driver output
+    Command_Write((char)0xA0);
+    // Dimming Set -> 15
+    Command_Write((char)0xEF);
+    // Blinking Set -> off
+    // Display Set -> on
+    Command_Write((char)0x81);
+}
+
+void char_data_write(char data)
+{
+    uint8_t read_c, i, j, c_buff[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+    for(i=0; i<5; i++)
+    {
+        read_c = font[data-0x20][i];
+        if(read_c)
+        {
+            for(j=0; j<8; j++)
+            {
+                if(read_c & (0x80 >> j))
+                {
+                    c_buff[j] |= (0x01 << (i+1));
+                }
+            }
+        }
+    }
+    for(i=0; i<8; i++)
+        Data_BUF[i*2+1] = c_buff[i];
+
+    data_write(Data_BUF, 17);
+}
\ No newline at end of file