Diff: main.cpp

Revision:

3:764ccaf29ce9

Parent:

2:42e8a4eb3c00

Child:

4:fc56fa8aa794

--- a/main.cpp	Fri Aug 10 20:22:44 2012 +0000
+++ b/main.cpp	Thu Sep 20 23:45:05 2012 +0000
@@ -7,67 +7,62 @@
 DigitalOut RESET (p21);
 
 Serial s(USBTX, USBRX);
-
-int main() {
+DigitalOut finish_flag (LED3);
 
-    //m2s_scan();
-
+int main()
+{
     s.printf("DDRO_software starts ...\r\n");
-    s.printf("powerReset() ...\r\n");
-    //reset
-    
-    powerReset();
-    
-    s.printf("powerUp() ...\r\n");
-    //power up
-    powerUp();
-    
-    //s.printf("master_write() ...\r\n");
-    //master_write();
-    
-    
+    double voltage = 1;
     PLL clk;
-    s.printf("testPLL() ...\r\n");
-    
-    RESET = 0;
-    wait_us(10);
-    RESET = 1;
-    
-    
-    /*
-    for (int i=100;i<201;i+=5)
-    {
-        clk.setPLL(i);
-        double out=(double)5000*(double)i/1024;
-        s.printf("Setting PLL, output should be %e k\n", out);
-        wait(5);
+    JTAG jtag;
+    int* ro_readings = new int [64];
+    FILE *outFile = fopen("/local/test.out", "a");
+    for (int i=0; i<7; i++) {
+        voltage = 1 - 0.05*i;
+        powerReset();
+        powerUp(voltage);
+        fprintf(outFile, "Voltage: %f\n", voltage);
+        RESET = 0;
+        wait_us(10);
+        RESET = 1;
+        master_write();
+        master_read(ro_readings);
+
+        for (int ii=0; ii<64; ii++) {
+            fprintf(outFile, "RO %d %d\n", ii, ro_readings[ii]);
+        }
+        int fmax;
+        int lower = 51;
+        int higher = 199;
+        int frequency = (lower+higher)/2;
+        clk.setPLL(frequency))
+        RESET = 0;
+        wait_us(10);
+        RESET = 1;
+        while (higher - lower >1) {
+        if(jtag.JTAG_test()) {
+                lower = frequency;
+                frequency = (lower+higher)/2;
+                clk.setPLL(frequency);
+                RESET = 0;
+                wait_us(10);
+                RESET = 1;
+            } else {
+                higher = frequency;
+                frequency = (lower+higher)/2;
+                clk.setPLL(frequency);
+                RESET = 0;
+                wait_us(10);
+                RESET = 1;
+            }
+        }
+        fprintf(outFile, "fmax %d\n", lower*5);
+        powerDown();
     }
-    */
-  
-    clk.setPLL(101);
-    /*
-    m2s_scan();
-    
-    //send signal to the other mbed to measure
-    //take_meansurement(int command)
-    //read_value();
-    //receive the value from the other mbed
-    
-    //listen for power down command from slave
-    s.printf("master_read() ...\r\n");
-    master_read();
-    
-    */
-    JTAG jtag;
-    RESET = 0;
-    wait_us(10);
-    RESET = 1;
-
-    s.printf("testJTAG() ...\r\n");
-    jtag.JTAG_test();
-    s.printf("powerDown() ...\r\n");
-    //power down
-    powerDown();
-    
+    fclose(outFile);
     s.printf("DDRO_software ends.\r\n");
+    while(1) {
+        finish_flag = !finish_flag;
+        wait(1);
+    }
 }