Diff: main.cpp

Revision:

0:b5d3bd64d2dc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Jan 24 15:46:26 2010 +0000
@@ -0,0 +1,61 @@
+#include "mbed.h"
+#include "ClockControl/ClockControl.h"
+#include "CoreMark/core_portme.h"
+
+int main() {
+    while(1) {   
+    
+
+    printf("mbed Clock Control test\r\n");
+    printf("(c) 2010 Michael Wei\r\n");
+    
+    unsigned short newM = 12;
+    unsigned short newN = 1;
+    
+    printf("Value of M? (default = 12):\r\n");
+    scanf("%d", &newM);
+    
+    printf("Value of N? (default = 1):\r\n");
+    scanf("%d", &newN);
+    
+    setSystemFrequency(0x3, 0x1, newM, newN);
+    
+    Serial pc(USBTX, USBRX); // tx, rx
+    
+    //This code by Simon Ford: http://mbed.org/forum/mbed/topic/229/?page=1#comment-1225
+    
+    int Fin = 12000000; // 12MHz XTAL
+    pc.printf("PLL Registers:\r\n");
+    pc.printf(" - PLL0CFG = 0x%08X\r\n", LPC_SC->PLL0CFG);
+    pc.printf(" - CLKCFG  = 0x%08X\r\n", LPC_SC->CCLKCFG);
+    
+    int M = (LPC_SC->PLL0CFG & 0xFFFF) + 1;
+    int N = (LPC_SC->PLL0CFG >> 16) + 1;
+    int CCLKDIV = LPC_SC->CCLKCFG + 1;
+
+    pc.printf("Clock Variables:\r\n");
+    pc.printf(" - Fin = %d\r\n", Fin);
+    pc.printf(" - M   = %d\r\n", M);
+    pc.printf(" - N   = %d\r\n", N);
+    pc.printf(" - CCLKDIV = %d\r\n", CCLKDIV);
+
+    int Fcco = (2 * M * 12000000) / N;
+    int CCLK = Fcco / CCLKDIV;
+
+    pc.printf("Clock Results:\r\n");    
+    pc.printf(" - Fcco = %d\r\n", Fcco);
+    
+    printf(" - CCLK = %d\r\n", CCLK);
+    
+    printf("Run CoreMark? (Y/N)\n");
+    char buf[8];
+    scanf("%s", buf);
+    if (buf[0] == 'y' || buf[0] == 'Y')
+    {
+        mainCoreMark();
+    }
+    
+    wait(1);
+    NVIC_SystemReset();
+    }
+}