i have no idea what i'm doing

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Comitter:
alecjw
Date:
Tue May 12 14:04:47 2015 +0000
Commit message:
i have no idea what i'm doing

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue May 12 14:04:47 2015 +0000
@@ -0,0 +1,56 @@
+#include "mbed.h"
+
+//Just a couple of the outputs directly accessible for debug
+DigitalIn O0(p14);/*
+DigitalIn O1(p15);
+DigitalIn O2(p16);
+DigitalIn O3(p20);*/
+DigitalIn O4(p19);/*
+DigitalIn O5(p18);
+DigitalIn O6(p17);
+DigitalIn O7(p21);*/
+
+DigitalOut CE(p22);
+DigitalOut OE(p24);
+
+Serial pc(USBTX, USBRX);
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+BusIn epromdata(p14,p15,p16,p20,p19,p18,p17,p21);
+BusOut addressline(p13,p12,p11,p10,p9,p8,p7,p6,p27,p26,p23,p25,p5,p28);
+
+
+int main() {
+    //CE and OE lines are inverted
+    CE=1;
+    OE=1;
+    //Give me some time to set up a pipe into a file
+    wait(8);
+    
+    int num=16384; //number of addresses
+    char epromcontents[num]; //char array to store data words
+    for (int addr=0;addr<num;addr++){
+        addressline=addr; //set the address
+        CE=0;//clock the chip
+        OE=0;
+        wait(1e-6); //wait a generous 1000ns
+        epromcontents[addr]=epromdata.read(); //then read the data into the array
+        //just as a sanity check, send two of the data lines to LEDs 1 and 2
+        led1=O0;
+        led2=O4;
+        //bring the clock lines back up and wait for the output to go back into tristated mode        
+        CE=1;
+        OE=1;
+        wait(1e-6);
+        
+    }
+    //led3 goes on to say we're done
+    led3=1;
+for(int i=0;i<num;i++)
+pc.printf("%d\n",epromcontents[i]);//send each byte over usbserial
+led4=1;//to say we're done sending
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue May 12 14:04:47 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/8ab26030e058
\ No newline at end of file