Diff: main.cpp

Revision:

0:1802fb31b938

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 21 01:15:42 2010 +0000
@@ -0,0 +1,116 @@
+#include "mbed.h"
+#include "usbhost_inc.h"
+
+void print_clock()
+{
+    int Fin = 12000000; // 12MHz XTAL
+    
+    printf("PLL Registers:\r\n");
+    printf(" - PLL0STAT   = 0x%08X\r\n", LPC_SC->PLL0STAT);
+    printf(" - CLKCFG     = 0x%08X\r\n", LPC_SC->CCLKCFG);
+    printf(" - USBCLKCFG  = 0x%08X\r\n", LPC_SC->USBCLKCFG);
+    
+    int M = (LPC_SC->PLL0STAT & 0x7FFF) + 1;
+    int N = ((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1;
+    int CCLKDIV = LPC_SC->CCLKCFG + 1;
+    int USBDIV = LPC_SC->USBCLKCFG + 1;
+
+    printf("Clock Variables:\r\n");
+    printf(" - Fin = %d\r\n", Fin);
+    printf(" - M   = %d\r\n", M);
+    printf(" - N   = %d\r\n", N);
+    printf(" - CCLKDIV = %d\r\n", CCLKDIV);
+    printf(" - USBCLKDIV = %d\r\n", USBDIV);
+
+    int Fcco = (2 * M * 12000000) / N;
+    int CCLK = Fcco / CCLKDIV;
+
+    printf("Clock Results:\r\n");    
+    printf(" - Fcco = %d\r\n", Fcco);
+    printf(" - CCLK = %d\r\n", CCLK);  
+    printf(" - USB Clock = %d\r\n", Fcco / USBDIV);  
+    printf("System clock: %d\r\n", SystemCoreClock);
+}
+
+/*
+**************************************************************************************************************
+*                                    COPYING A FILE
+*
+* Description: This function is used by the user to copy a file
+*
+* Arguments  : None
+*
+* Returns    : None
+*
+**************************************************************************************************************
+*/
+
+#define FILENAME_R "input.txt"
+#define FILENAME_W "output.txt"
+#define  MAX_BUFFER_SIZE             (4000)
+void Main_Copy (void)
+{
+    USB_INT32S  fdr;
+    USB_INT32S  fdw;
+    USB_INT32U  bytes_read;
+
+
+    fdr = FILE_Open((char *)FILENAME_R, RDONLY);
+    if (fdr > 0) {
+        fdw = FILE_Open((char *)FILENAME_W, RDWR);
+        if (fdw > 0) {
+            PRINT_Log("Copying from %s to %s...\r\n", FILENAME_R, FILENAME_W);
+            do {
+                bytes_read = FILE_Read(fdr, UserBuffer, MAX_BUFFER_SIZE);
+                FILE_Write(fdw, UserBuffer, bytes_read);
+                PRINT_Log(".");
+            } while (bytes_read);
+            PRINT_Log("\r\n");
+            FILE_Close(fdw);
+        } else {
+            PRINT_Log("Could not open file %s\r\n", FILENAME_W);
+            return;
+        }
+        FILE_Close(fdr);
+        PRINT_Log("Copy completed\r\n");
+    } else {
+        PRINT_Log("Could not open file %s\r\n", FILENAME_R);
+        return;
+    }
+}
+
+int main()
+{
+    USB_INT32S  rc;
+    USB_INT32U  numBlks, blkSize;
+    USB_INT08U  inquiryResult[INQUIRY_LENGTH];
+    
+    print_clock();
+//    UART_Init(115200);         /* Initialize the serial port to view the log messages                       */
+    Host_Init();               /* Initialize the  host controller                                    */
+    rc = Host_EnumDev();       /* Enumerate the device connected                                            */
+    if (rc == OK) {
+        /* Initialize the mass storage and scsi interfaces */
+        rc = MS_Init( &blkSize, &numBlks, inquiryResult );
+        if (rc == OK) {
+            rc = FAT_Init();   /* Initialize the FAT16 file system                                          */
+            if (rc == OK) {
+                Main_Copy();   /* Call the application                                                      */
+            } else {
+printf("ERROR %d in FAT_Init()\r\n", rc);
+                while ( 1 );
+            //    return (0);
+            }
+printf("All OK in main()\r\n");
+        } else {
+printf("ERROR %d in MS_Init()\r\n", rc);
+            while ( 1 );
+//            return (0);
+        }
+    } else {                            
+printf("ERROR %d in Host_EnumDev()\r\n", rc);
+        while ( 1 );
+//        return (0);
+    }
+    while(1);
+}