Revision 0:a027cfb8ab6b, committed 2014-09-06

Comitter:

Sarahi

Date:

Sat Sep 06 16:15:07 2014 +0000

Commit message:

codigo slave

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Sep 06 16:15:07 2014 +0000
@@ -0,0 +1,43 @@
+#include "mbed.h"
+
+SPISlave ser_port(D11,D12,D13,D2); // mosi, miso, sclk, ssel
+DigitalOut red_led(LED_RED);            //red led
+DigitalOut green_led(LED_GREEN);          //green led
+DigitalIn  switch_ip1(SW1);
+DigitalIn  switch_ip2(SW3);
+
+char switch_word ;                  //word we will send
+char recd_val;                      //value received from master
+
+int main() {
+  switch_ip1.mode(PullUp);
+  switch_ip2.mode(PullUp);
+  
+  //default formatting applied
+  while(1) {
+    //set up switch_word from switches that are pressed 
+    switch_word=0xa0;             //set up a recognisable output pattern
+    if (switch_ip1==0)
+      switch_word=switch_word|0x01;
+    if (switch_ip2==0)
+      switch_word=switch_word|0x02;
+    
+    if(ser_port.receive()) {      //test if data transfer has occurred
+      recd_val = ser_port.read();   // Read byte from master
+      ser_port.reply(switch_word);  // Make this the next reply
+    } 
+    //set leds according to incoming word from slave
+    red_led=1;              //preset both to 0
+    green_led=1; 
+    recd_val=recd_val&0x03; //AND out unwanted bits
+    if (recd_val==1)
+      red_led=0;
+    if (recd_val==2)
+      green_led=0;
+    if (recd_val==3){
+      red_led=0;
+      green_led=0;
+    }
+  }    
+} 
+    //now set leds according to received word
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Sep 06 16:15:07 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013
\ No newline at end of file