Diff: main.cpp

Revision:

2:1ad4d6a0ebfe

Parent:

1:c667d1f8e407

--- a/main.cpp	Mon Jan 19 23:17:04 2015 +0000
+++ b/main.cpp	Tue Jan 20 02:16:06 2015 +0000
@@ -3,6 +3,7 @@
 DigitalIn mybutton(USER_BUTTON); // Activate button
 DigitalOut chipselect(D10); // ChipSelect (CS) pin
 SPI eeprom(SPI_MOSI, SPI_MISO, SPI_SCK); // Activate SPI to ST eeprom
+Serial pc(SERIAL_TX, SERIAL_RX);
 
 #define WREN 0x06
 #define RDSR 0x05
@@ -10,9 +11,12 @@
 #define WRITE_LOW 0x02
  
 int main() {
+    char char_in = 't';
+    char char_out;
+    int i = 0;
+
     chipselect =1;
     eeprom.frequency(1000000); // set 1 MHz clock rate
-    int i = 0;
     while(1) {
         if (mybutton == 0) { // Button is pressed
             chipselect = 0;
@@ -23,15 +27,50 @@
             eeprom.write(WREN);
             chipselect = 1;
             wait_us(1);
-            chipselect = 0;
-            eeprom.write(RDSR);
-            eeprom.write(0x00);
-            chipselect = 1;
-            chipselect = 0;
-            eeprom.write(WRITE_LOW);
-            eeprom.write(0x00);
-            eeprom.write(0x01);
-            chipselect = 1;
+            while((char_in == 'y') == (char_in == 'n')){
+                pc.printf("\n\rDo you want type in some characters? Answer (y/n): ");
+                char_in=pc.getc();
+                pc.putc(char_in);
+                if((char_in != 'n') == (char_in != 'y')) {
+                    pc.printf("\n\rPlease substitute %c with (y/n)-t", char_in);
+                }
+            }
+            if(char_in == 'y'){
+                pc.printf("\n\rWrite something (max. 16 chars): ");
+                i = 0;
+                while(i < 16){
+                    char_in=pc.getc();
+                    if(char_in == '\n'){
+                        i = 16;
+                        break;
+                    }
+                    chipselect = 0;
+                    eeprom.write(WREN);
+                    chipselect = 1;
+                    wait_us(1);
+                    chipselect = 0;
+                    eeprom.write(WRITE_LOW);
+                    eeprom.write(i);
+                    eeprom.write(char_in);
+                    chipselect = 1;
+                    i++;
+                    pc.putc(char_in);
+                }
+                char_in = 't';
+            }
+            if(char_in == 'n'){
+                pc.printf("\n\rFirst page: ");
+                for(i=0; i<16; i++){
+                    chipselect = 0;
+                    eeprom.write(READ_LOW);
+                    eeprom.write(i);
+                    char_out = eeprom.write(0x00);
+                    chipselect = 1;
+                    pc.putc(char_out);
+                }
+                char_in = 't';
+            }
+            pc.printf("\n\r");
             wait(2);
         }
     }