Diff: main.cpp

Revision:

0:9ae1fdfe973e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 26 22:15:15 2011 +0000
@@ -0,0 +1,66 @@
+#include "mbed.h"
+
+#include "Ser25lcxxx.h"
+
+void dumpLine(char* s, int len)
+{
+    for (int i=0;i<len;i++)
+    {
+        printf("%X ",s[i]);
+    }
+    printf("\n");
+}
+
+void dump(char *s, int len)
+{
+    int i=0;
+    while (i<len)
+    {
+        if (i+16<len)
+            dumpLine(s+i,16);
+        else
+            dumpLine(s+i,len-i);
+        i+=16;
+    }
+}
+
+int main() {
+    printf("******** [%s] *********\n",__TIME__);
+    // setup hardware
+    SPI spi(p5,p6,p7);
+    spi.format(8,3);
+    spi.frequency(1000000);
+    // /CS is connected to p9, chip,in question is a 25LC256 (32kx8, 64-byte page)
+    Ser25LCxxx flash(&spi, p9, 32768,64);
+    
+    int len=128;
+    
+    // dump initial memory content (first 2 pages)
+    char* r=flash.read(0,len);
+    dump(r,len);
+    printf("\n");
+    
+    // write some stuff to the first and second page
+    char buf[64];
+    sprintf(buf,"******** [%s] *********\n",__TIME__);
+    
+    bool b=flash.write(50,strlen(buf),buf);
+
+    // read written data back (first 2 pages)
+    r=flash.read(0,len);
+    dump(r,len);
+    printf("\n");
+    
+    // clear first page, read first 2 pages back
+    flash.clearPage(0);
+    r=flash.read(0,len);
+    dump(r,len);
+    printf("\n");
+    
+    // clear everything, read first 2 pages back
+    flash.clearMem();
+    r=flash.read(0,len);
+    dump(r,len);
+    printf("\n");
+    
+}