/*
LUFA Library
- Copyright (C) Dean Camera, 2012.
+ Copyright (C) Dean Camera, 2014.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2014 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
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
- The author disclaim all warranties with regard to this
+ The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
/* Set DATA line high for at least 90ns to disable /RESET functionality */
PORTD |= (1 << 3);
- _delay_us(1);
+ _delay_us(100);
/* Set up the synchronous USART for XMEGA communications - 8 data bits, even parity, 2 stop bits */
UBRR1 = ((F_CPU / 2 / XPROG_HARDWARE_SPEED) - 1);
/* Set /RESET line low for at least 400ns to enable TPI functionality */
AUX_LINE_DDR |= AUX_LINE_MASK;
AUX_LINE_PORT &= ~AUX_LINE_MASK;
- _delay_us(1);
+ _delay_us(100);
/* Set Tx and XCK as outputs, Rx as input */
DDRD |= (1 << 5) | (1 << 3);
DDRD &= ~(1 << 2);
- /* Set up the synchronous USART for TINY communications - 8 data bits, even parity, 2 stop bits */
+ /* Set up the synchronous USART for TPI communications - 8 data bits, even parity, 2 stop bits */
UBRR1 = ((F_CPU / 2 / XPROG_HARDWARE_SPEED) - 1);
UCSR1B = (1 << TXEN1);
UCSR1C = (1 << UMSEL10) | (1 << UPM11) | (1 << USBS1) | (1 << UCSZ11) | (1 << UCSZ10) | (1 << UCPOL1);
XPROGTarget_SetRxMode();
/* Wait until a byte has been received before reading */
- while (!(UCSR1A & (1 << RXC1)) && !(TimeoutExpired));
-
- /* Byte of data received - reset the timeout */
- wdt_reset();
+ while (!(UCSR1A & (1 << RXC1)) && TimeoutTicksRemaining);
return UDR1;
}