avr: 1wire-config.h annotate

annotate 1wire-config.h @ 33:0aa6bf4b98ae

- Don't wrap individual debug statements in ifdef, use a conditionally defined macro instead. - Add OWProgROM routine, can't remember if I actually tested it tho :)

author	darius
date	Tue, 23 Oct 2007 10:51:35 +0930
parents	b0cb873c0206
children	5898fba6593c

rev	line source
32 b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	1 /*
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	2 * 1 wire header
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	3 *
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	4 * This is the user servicable stuff - how to do delays and how to
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	5 * frob the IO pins.
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	6 *
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	7 * $Id$
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	8 *
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	9 * Copyright (c) 2004
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	10 * Daniel O'Connor <darius@dons.net.au>. All rights reserved.
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	11 *
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	12 * Redistribution and use in source and binary forms, with or without
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	13 * modification, are permitted provided that the following conditions
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	14 * are met:
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	15 * 1. Redistributions of source code must retain the above copyright
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	16 * notice, this list of conditions and the following disclaimer.
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	17 * 2. Redistributions in binary form must reproduce the above copyright
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	18 * notice, this list of conditions and the following disclaimer in the
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	19 * documentation and/or other materials provided with the distribution.
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	20 *
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	21 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	24 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	31 * SUCH DAMAGE.
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	32 */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	33
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	34 /*
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	35 * Alter these for your configuration
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	36 */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	37
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	38 /* Set DDR on the right pins */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	39 #define OWBUSINIT() do { \
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	40 DDRD \|= _BV(4); \
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	41 DDRD &= ~_BV(3); \
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	42 } while (0)
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	43
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	44 /* Read the 1-wire bus, non-inverting logic */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	45 #define OWREADBUS() (PIND & _BV(3) ? 1 : 0)
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	46
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	47 /* Set the 1-wire bus to 0
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	48 * Turns a transistor on to pull it low
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	49 */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	50 #define OWSETBUSLOW() PORTD \|= _BV(4)
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	51
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	52 /* Set the 1-wire bus to 1
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	53 * Turn the transistor off to let the pullup do its job
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	54 */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	55 #define OWSETBUSHIGH() PORTD &= ~_BV(4)
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	56
33 0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	57 /* Turn Vpp on (ie put +12V on the bus
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	58 * This is optional, if it is undefined OWProgROM always fails */
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	59 #define OWSETVPPON() PORTD \|= _BV(5)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	60 #define OWSETVPPOFF() PORTD &= ~_BV(5)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	61
32 b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	62 /* _delay_us can only do a delay of 768/clock_freq */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	63 #if F_CPU > 16000000
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	64 #error F_CPU > 16MHz, delays need adjusting
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	65 #endif
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	66
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	67 #define OWDELAY_A _delay_us(6) /* 6 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	68 #define OWDELAY_B do { _delay_us(48); _delay_us(16); } while (0) /* 64 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	69 #define OWDELAY_C do { _delay_us(48); _delay_us(12); } while (0) /* 60 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	70 #define OWDELAY_D _delay_us(10) /* 10 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	71 #define OWDELAY_E _delay_us(9) /* 9 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	72 #define OWDELAY_F do { _delay_us(55); } while (0) /* 55 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	73 #define OWDELAY_G /* 0 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	74 #define OWDELAY_H do { _delay_us(48); _delay_us(48); _delay_us(48); \
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	75 _delay_us(48); _delay_us(48); _delay_us(48); _delay_us(48); \
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	76 _delay_us(48);_delay_us(48); _delay_us(48); } while (0) /* 480 usec */
b0cb873c0206 Isolate the bus frobbing parts and the delays into a separate header. darius parents: diff changeset	77 #define OWDELAY_I do { _delay_us(48); _delay_us(22); } while (0) /* 70 usec */
33 0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	78
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	79 void uart_putsP(const char *addr);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	80 void uart_puts(const char *addr);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	81 void uart_puts_hex(uint8_t a);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	82 void uart_puts_dec(uint8_t a, uint8_t l);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	83 #if OW_DEBUG
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	84 void uart_putsP(const char *addr);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	85 void uart_puts(const char *addr);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	86 void uart_puts_hex(uint8_t a);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	87 void uart_puts_dec(uint8_t a, uint8_t l);
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	88
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	89 #define OWPUTS(x) uart_puts(x)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	90 #define OWPUTSP(x) uart_putsP(x)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	91 #else
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	92 #define OWPUTS(x)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	93 #define OWPUTSP(x)
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	94 #endif
0aa6bf4b98ae - Don't wrap individual debug statements in ifdef, use a conditionally darius parents: 32 diff changeset	95

Mercurial > ~darius > hgwebdir.cgi > avr

annotate 1wire-config.h @ 33:0aa6bf4b98ae