Jordan Earls
A project to implement a console using the Mbed using VGA for video output and a PS/2 keyboard for the input. The eventual goal is to also include tools for managing SD cards, and a semi-self-hosting programming environment.
Dependencies: PS2_MbedConsole fastlib SDFileSystem vga640x480g_mbedconsole lightvm mbed
MbedConsole is a cool little project to have a self-contained computer all on an Mbed. So far it has VGA and PS/2 support and can stand alone without a computer powering it. Next planned features are SD card support and a lightweight programmable VM complete with a file editor and self-hosted assembler.
You can view additional details about it at http://earlz.net/tags/mbedconsole
Diff: main.cpp
- Revision:
- 0:6906dbde03da
- Child:
- 1:eb209f0468de
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 17 03:25:23 2012 +0000
@@ -0,0 +1,82 @@
+#include "mbed.h"
+#include "vga640x480g.h"
+
+#define FONTHEIGHT 16
+#define FONTWIDTH 8
+
+int console_x=0, console_y=0;
+int console_color=WHITE; //text color
+
+DigitalOut myled(LED1);
+
+Serial serial(USBTX,USBRX);
+
+void rawputc(char c)
+{
+ //fuck that shitv
+ if(console_x>80)
+ {
+ return;
+ }
+ //shift left for fast multiply
+ vga_putchar(console_x<<3, console_y<<4, c, console_color);
+}
+void putc(char c)
+{
+ //shift left for fast multiply
+ if(console_x>=79)
+ {
+ console_x=0;
+ console_y++;
+ }
+ switch(c){
+ case '\n':
+ case '\r':
+ console_y++;
+ console_x=0;
+ break;
+ case '\b':
+ rawputc(' ');
+ if(console_x>0)
+ {
+ console_x--;
+ }
+ rawputc(' ');
+ break;
+ case '\t':
+ for(int i=0;i<4;i++)
+ {
+ console_x++;
+ rawputc(' ');
+ }
+ default:
+ vga_putchar(console_x<<3, console_y<<4, c, console_color);
+ console_x++;
+ }
+}
+
+/*void puts(char *s){
+ while(*s!=0){
+ char c=*s;
+ switch(c)
+ case '\n':
+ case '\r':
+ console_x=0;
+ vga_putchar(console_x,console_y,*s,console_color);
+ }
+*/
+
+int main() {
+ init_vga();
+
+ serial.baud(115200);
+
+ vga_cls();
+
+ while(1)
+ {
+ if(serial.readable()){
+ putc(serial.getc());
+ }
+ }
+}