51db2fae30b0fa6b9d5f2f9760fd16edd64640e2

This patch is all that is needed to allow the demo "board"
to dump a file that will display graphicaly in gtkwave.

Signed-off-by: Michel Pollet <buserror@gmail.com>

diff --git a/examples/board_ledramp/ledramp.c b/examples/board_ledramp/ledramp.c
index 78ec0c7e32bf8647c75b0d873555c32817be33ea..b96c0abe3158adab45efadffe1af5ef209fdb658 100644 (file)
--- a/examples/board_ledramp/ledramp.c
+++ b/examples/board_ledramp/ledramp.c
@@ -164,12 +164,33 @@ int main(int argc, char *argv[])
                avr_gdb_init(avr);
        }
 
+       /*
+        *      VCD file initialization
+        *      
+        *      This will allow you to create a "wave" file and display it in gtkwave
+        *      Pressing "r" and "s" during the demo will start and stop recording
+        *      the pin changes
+        */
+       avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 1000 /* usec */);
+       avr_vcd_add_signal(&vcd_file, 
+               avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_PIN_ALL), 8 /* bits */ ,
+               "portb" );
+       avr_vcd_add_signal(&vcd_file, 
+               button.irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
+               "button" );
+
+       // 'raise' it, it's a "pullup"
+       avr_raise_irq(button.irq + IRQ_BUTTON_OUT, 1);
+
        printf( "Demo launching: 'LED' bar is PORTB, updated every 1/64s by the AVR\n"
                        "   firmware using a timer. If you press 'space' this presses a virtual\n"
                        "   'button' that is hooked to the virtual PORTC pin 0 and will\n"
                        "   trigger a 'pin change interrupt' in the AVR core, and will 'invert'\n"
                        "   the display.\n"
-                       "   Press 'q' to quit\n");
+                       "   Press 'q' to quit\n\n"
+                       "   Press 'r' to start recording a 'wave' file\n"
+                       "   Press 's' to stop recording\n"
+                       );
 
        /*
         * OpenGL init, can be ignored