TEAMUSB / Mbed 2 deprecated SPI_master_frdm_keystroke_protocoll

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Dependencies:   mbed

Fork of SPI_master_frdm by TEAMUSB

Files at this revision

API Documentation at this revision

Revision 5:8566031849f7, committed 2015-04-01

Comitter:
armdran
Date:
Wed Apr 01 15:53:29 2015 +0000
Parent:
4:995eae7f13f4
Commit message:
chanted protocol : adaption to frdm-spi slave with keystrokes

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 995eae7f13f4 -r 8566031849f7 main.cpp
--- a/main.cpp	Wed Apr 01 13:03:01 2015 +0000
+++ b/main.cpp	Wed Apr 01 15:53:29 2015 +0000
@@ -21,47 +21,33 @@
 
 int main() {
 
-    spi.format(8,1); //not usefull results
+    spi.format(8,1); 
     spi.frequency(1000000);
-    //spi.frequency(4000000);    
-    uint8_t i;
-    int j = 0;
-    uint8_t fail; 
-    uint8_t success; 
-
+    int i = 0;
     
     while(1) {
-        fail = 0; 
-        success = 0;
-         
-        for (i = 0; i < 10; i++) {
-     
-            cs = 0;
-            spi.write(i);
-            cs = 1;
-            
-            wait_ms(100);
-            
-            cs = 0;
-            uint8_t response = spi.write(0xFF);
-            cs = 1;
-            
-            printf("send: %x received: %x\r\n", i, response);
-                                       
-            if(response == i + 0x10) {
-                success++;
-            } else {
-                fail++; 
-            }
-            
-            wait_ms(2000);
-
-            
-        }
+        
+        cs = 0;
+        spi.write(0xFE);
+        cs = 1;
+        
+        wait_ms(1);
+        
+        cs = 0;
+        uint8_t response = spi.write(0xFF);
+        cs = 1;
         
-        pc.printf("%d: fails: %d, success: %d\r\n",j++ , fail, success);
-        wait(.5);
-
+        if(response != 0x0) {
+            printf("received keystroke %x\r\n", response);
+        } 
+        
+        wait_ms(1);
+        
+        cs = 0;
+        spi.write(response);
+        cs = 1;
+          
+        wait_ms(1);          
     }