X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/0ce2950d811b8dc11e46602e7490d795d8ddfb5d..46677b45896a955b8c62a46d624750213a00b1dd:/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c?ds=sidebyside

diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
index f4e9e3d3a..657c2c999 100644
--- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
+++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
@@ -142,7 +142,7 @@ ISR(TIMER1_COMPA_vect, ISR_BLOCK)
 /** Initialises the appropriate SPI driver (hardware or software, depending on the selected ISP speed) ready for
  *  communication with the attached target.
  */
-void ISPTarget_Init(void)
+void ISPTarget_EnableTargetISP(void)
 {
 	uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
 
@@ -167,7 +167,7 @@ void ISPTarget_Init(void)
 /** Shuts down the current selected SPI driver (hardware or software, depending on the selected ISP speed) so that no
  *  further communications can occur until the driver is re-initialized.
  */
-void ISPTarget_ShutDown(void)
+void ISPTarget_DisableTargetISP(void)
 {
 	if (HardwareSPIMode)
 	{
@@ -189,19 +189,29 @@ void ISPTarget_ShutDown(void)
  */
 void ISPTarget_ConfigureRescueClock(void)
 {
-	/* Configure OCR1A as an output for the specified AVR model */
-	#if defined(USB_SERIES_2_AVR)
-	DDRC |= (1 << 6);
+	#if defined(XCK_RESCUE_CLOCK_ENABLE)
+		/* Configure XCK as an output for the specified AVR model */
+		DDRD  |= (1 << 5);
+		
+		/* Start USART to generate a 4MHz clock on the XCK pin */
+		UBRR1  = ((F_CPU / 2 / ISP_RESCUE_CLOCK_SPEED) - 1);
+		UCSR1B = (1 << TXEN1);
+		UCSR1C = (1 << UMSEL10) | (1 << UPM11) | (1 << USBS1) | (1 << UCSZ11) | (1 << UCSZ10) | (1 << UCPOL1);
 	#else
-	DDRB |= (1 << 5);
+		/* Configure OCR1A as an output for the specified AVR model */
+		#if defined(USB_SERIES_2_AVR)
+		DDRC |= (1 << 6);
+		#else
+		DDRB |= (1 << 5);
+		#endif
+
+		/* Start Timer 1 to generate a 4MHz clock on the OCR1A pin */
+		TIMSK1 = 0;
+		TCNT1  = 0;
+		OCR1A  = ((F_CPU / 2 / ISP_RESCUE_CLOCK_SPEED) - 1);
+		TCCR1A = (1 << COM1A0);
+		TCCR1B = ((1 << WGM12) | (1 << CS10));
 	#endif
-
-	/* Start Timer 1 to generate a 4MHz clock on the OCR1A pin */
-	TIMSK1 = 0;
-	TCNT1  = 0;
-	OCR1A  = ((F_CPU / 2 / 4000000UL) - 1);
-	TCCR1A = (1 << COM1A0);
-	TCCR1B = ((1 << WGM12) | (1 << CS10));
 }
 
 /** Configures the AVR's timer ready to produce software ISP for the slower ISP speeds that