Minor documentation improvements.

[pub/USBasp.git] / Projects / AVRISP-MKII / Lib / ISP / ISPTarget.c

diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
index 657c2c9..624d591 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
+++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.

 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*

-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)

 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted


@@ -117,6 +117,7 @@ volatile uint8_t SoftSPI_BitsRemaining;
 /** ISR to handle software SPI transmission and reception */
 ISR(TIMER1_COMPA_vect, ISR_BLOCK)
 {
 /** ISR to handle software SPI transmission and reception */
 ISR(TIMER1_COMPA_vect, ISR_BLOCK)
 {

+       /* Check if rising edge (output next bit) or falling edge (read in next bit) */

        if (!(PINB & (1 << 1)))
        {
                if (SoftSPI_Data & (1 << 7))
        if (!(PINB & (1 << 1)))
        {
                if (SoftSPI_Data & (1 << 7))


@@ -178,6 +179,8 @@ void ISPTarget_DisableTargetISP(void)
                DDRB  &= ~((1 << 1) | (1 << 2));
                PORTB &= ~((1 << 0) | (1 << 3));
                
                DDRB  &= ~((1 << 1) | (1 << 2));
                PORTB &= ~((1 << 0) | (1 << 3));
                

+               /* Must re-enable rescue clock once software ISP has exited, as the timer for the rescue clock is
+                * re-purposed for software SPI */

                ISPTarget_ConfigureRescueClock();
        }
 }
                ISPTarget_ConfigureRescueClock();
        }
 }