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Use Triple-A libraries instead.

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1 parent d0df80b commit 93ac6d434f8ed33c1d98bdc70bb3f8dfece1e127 @tuupola committed Jan 22, 2012
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4 74hc165_shiftin/Makefile
@@ -51,7 +51,7 @@ FORMAT = ihex
TARGET = main
# List C source files here. (C dependencies are automatically generated.)
-SRC = $(TARGET).c uart_async.c
+SRC = $(TARGET).c shift/shift.c uart/uart_async.c
# List Assembler source files here.
# Make them always end in a capital .S. Files ending in a lowercase .s
@@ -92,7 +92,7 @@ CSTANDARD = -std=gnu99
# Place -D or -U options here
-CDEFS = -DF_CPU=$(F_CPU)UL
+CDEFS = -DF_CPU=$(F_CPU)UL -DDEBUG
# uncomment and adapt these line if you want different UART library buffer size
#CDEFS += -DUART_RX_BUFFER_SIZE=128
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29 74hc165_shiftin/digital.h
@@ -1,29 +0,0 @@
-/*
- * digital.h
- *
- * Lightweight macro implementation of Arduino style pin numbering
- * for AVR microprocessors. Because only thing I want to use from
- * Arduino libraries is the pin numbering scheme.
- *
- * This file taken 99% from the excellent ArduinoLite project by
- * Shikai Chen <csk@live.com>. Some minor changes to suite my personal
- * coding taste.
- *
- * http://code.google.com/p/arduino-lite/
- * http://www.csksoft.net/
- *
- * Copyright (c) 2010-2011 Shikai Chen
- *
- * Licensed under the LGPL 2.1 license:
- * http://www.opensource.org/licenses/lgpl-2.1.php
- */
-
-#ifndef DIGITAL_H
-#define DIGITAL_H
-#include "pins.h"
-
-#define digital_read(pin) EXPAND_WRAPPER(_D_READ, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-#define digital_read_raw(pin) EXPAND_WRAPPER(_D_READ_RAW, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-#define digital_write(pin, val) D_WRITE_##val(pin)
-
-#endif /* DIGITAL_H */
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44 74hc165_shiftin/main.c
@@ -36,41 +36,15 @@
#include <avr/sfr_defs.h>
#include "main.h"
-#include "uart.h"
-#include "pins.h"
-#include "digital.h"
+#include "uart/uart.h"
+#include "pins/digital.h"
-#define LATCH 8 /* sh/ld */
-#define CLOCK 12 /* clk */
-#define DATA 13 /* qh */
-
-static void init(void) {
- pin_mode(LATCH, OUTPUT);
- pin_mode(CLOCK, OUTPUT);
- pin_mode(DATA, INPUT);
-}
-
-int shiftin(void) {
- uint8_t byte = 0;
- uint8_t pin_value;
-
- for(int i=0; i<8; i++) {
- pin_value = digital_read(DATA);
- byte |= (pin_value << ((8 - 1) - i));
- printf("%d = %d \n", ((8 - 1) - i), pin_value);
-
- /* Pulse clock input (CP) LOW-HIGH to read next bit. */
- digital_write(CLOCK, LOW);
- //_delay_ms(10);
- digital_write(CLOCK, HIGH);
- }
- return byte;
+static void init(void) {
}
-
int main(void) {
- init();
+ shift_in_init();
uart_init();
stdout = &uart_output;
stdin = &uart_input;
@@ -80,20 +54,22 @@ int main(void) {
while (1) {
/* Read in parallel input by setting SH/LD low. */
- digital_write(LATCH, LOW);
+ //digital_write(LATCH, LOW);
//_delay_ms(10);
/* Freeze data by setting SH/LD high. When SH/LD is high data enters */
/* to reqisters from SER input and shifts one place to the right */
/* (Q0 -> Q1 -> Q2, etc.) with each positive-going clock transition. */
- digital_write(LATCH, HIGH);
+ //digital_write(LATCH, HIGH);
+
+ shift_in_latch();
/* Read in first 74HC165 data. */
- register_value = shiftin();
+ register_value = shift_in();
printf("%d \n", register_value);
/* Read in second 74HC165 data. */
- register_value = shiftin();
+ register_value = shift_in();
printf("%d \n", register_value);
_delay_ms(2000);
View
567 74hc165_shiftin/pins.h
@@ -1,567 +0,0 @@
-/*
- * pins.h
- *
- * Lightweight macro implementation of Arduino style pin numbering
- * for AVR microprocessors. Because only thing I want to use from
- * Arduino libraries is the pin numbering scheme.
- *
- * This file taken 99% from the excellent ArduinoLite project by
- * Shikai Chen <csk@live.com>. Some minor changes to suite my personal
- * coding taste.
- *
- * http://code.google.com/p/arduino-lite/
- * http://www.csksoft.net/
- *
- * Copyright (c) 2010-2011 Shikai Chen
- *
- * Licensed under the LGPL 2.1 license:
- * http://www.opensource.org/licenses/lgpl-2.1.php
- */
-
-#ifndef PINS_H
-#define PINS_H
-
-
-#define HIGH 0x1
-#define LOW 0x0
-
-#define INPUT 0x0
-#define OUTPUT 0x1
-
-#define ENABLE 0x1
-#define DISABLE 0x0
-
-#define ARDUINOPIN_TO_TIMERID(x) TIMER_AT_PIN_##x
-#define ARDUINOPIN_TO_TCCRID(x) TCCR_AT_PIN_##x
-
-#define ARDUINOPIN_TO_PORTID(x) PORT_AT_PIN_##x
-#define ARDUINOPIN_TO_PORTMSK(x) PORTMSK_AT_PIN_##x
-
-#define PORTID_TO_DIR_REG(x) DIR_REG_AT_##x
-#define PORTID_TO_OUTPUT_REG(x) OUTPUT_REG_AT_##x
-#define PORTID_TO_INPUT_REG(x) INPUT_REG_AT_##x
-
-#if defined(__AVR_ATmega1280__)
-
-#define PORT_AT_PIN_0 PortE // PE 0 ** 0 ** USART0_RX
-#define PORT_AT_PIN_1 PortE // PE 1 ** 1 ** USART0_TX
-#define PORT_AT_PIN_2 PortE // PE 4 ** 2 ** PWM2
-#define PORT_AT_PIN_3 PortE // PE 5 ** 3 ** PWM3
-#define PORT_AT_PIN_4 PortG // PG 5 ** 4 ** PWM4
-#define PORT_AT_PIN_5 PortE // PE 3 ** 5 ** PWM5
-#define PORT_AT_PIN_6 PortH // PH 3 ** 6 ** PWM6
-#define PORT_AT_PIN_7 PortH // PH 4 ** 7 ** PWM7
-#define PORT_AT_PIN_8 PortH // PH 5 ** 8 ** PWM8
-#define PORT_AT_PIN_9 PortH // PH 6 ** 9 ** PWM9
-#define PORT_AT_PIN_10 PortB // PB 4 ** 10 ** PWM10
-#define PORT_AT_PIN_11 PortB // PB 5 ** 11 ** PWM11
-#define PORT_AT_PIN_12 PortB // PB 6 ** 12 ** PWM12
-#define PORT_AT_PIN_13 PortB // PB 7 ** 13 ** PWM13
-#define PORT_AT_PIN_14 PortJ // PJ 1 ** 14 ** USART3_TX
-#define PORT_AT_PIN_15 PortJ // PJ 0 ** 15 ** USART3_RX
-#define PORT_AT_PIN_16 PortH // PH 1 ** 16 ** USART2_TX
-#define PORT_AT_PIN_17 PortH // PH 0 ** 17 ** USART2_RX
-#define PORT_AT_PIN_18 PortD // PD 3 ** 18 ** USART1_TX
-#define PORT_AT_PIN_19 PortD // PD 2 ** 19 ** USART1_RX
-#define PORT_AT_PIN_20 PortD // PD 1 ** 20 ** I2C_SDA
-#define PORT_AT_PIN_21 PortD // PD 0 ** 21 ** I2C_SCL
-#define PORT_AT_PIN_22 PortA // PA 0 ** 22 ** D22
-#define PORT_AT_PIN_23 PortA // PA 1 ** 23 ** D23
-#define PORT_AT_PIN_24 PortA // PA 2 ** 24 ** D24
-#define PORT_AT_PIN_25 PortA // PA 3 ** 25 ** D25
-#define PORT_AT_PIN_26 PortA // PA 4 ** 26 ** D26
-#define PORT_AT_PIN_27 PortA // PA 5 ** 27 ** D27
-#define PORT_AT_PIN_28 PortA // PA 6 ** 28 ** D28
-#define PORT_AT_PIN_29 PortA // PA 7 ** 29 ** D29
-#define PORT_AT_PIN_30 PortC // PC 7 ** 30 ** D30
-#define PORT_AT_PIN_31 PortC // PC 6 ** 31 ** D31
-#define PORT_AT_PIN_32 PortC // PC 5 ** 32 ** D32
-#define PORT_AT_PIN_33 PortC // PC 4 ** 33 ** D33
-#define PORT_AT_PIN_34 PortC // PC 3 ** 34 ** D34
-#define PORT_AT_PIN_35 PortC // PC 2 ** 35 ** D35
-#define PORT_AT_PIN_36 PortC // PC 1 ** 36 ** D36
-#define PORT_AT_PIN_37 PortC // PC 0 ** 37 ** D37
-#define PORT_AT_PIN_38 PortD // PD 7 ** 38 ** D38
-#define PORT_AT_PIN_39 PortG // PG 2 ** 39 ** D39
-#define PORT_AT_PIN_40 PortG // PG 1 ** 40 ** D40
-#define PORT_AT_PIN_41 PortG // PG 0 ** 41 ** D41
-#define PORT_AT_PIN_42 PortL // PL 7 ** 42 ** D42
-#define PORT_AT_PIN_43 PortL // PL 6 ** 43 ** D43
-#define PORT_AT_PIN_44 PortL // PL 5 ** 44 ** D44
-#define PORT_AT_PIN_45 PortL // PL 4 ** 45 ** D45
-#define PORT_AT_PIN_46 PortL // PL 3 ** 46 ** D46
-#define PORT_AT_PIN_47 PortL // PL 2 ** 47 ** D47
-#define PORT_AT_PIN_48 PortL // PL 1 ** 48 ** D48
-#define PORT_AT_PIN_49 PortL // PL 0 ** 49 ** D49
-#define PORT_AT_PIN_50 PortB // PB 3 ** 50 ** SPI_MISO
-#define PORT_AT_PIN_51 PortB // PB 2 ** 51 ** SPI_MOSI
-#define PORT_AT_PIN_52 PortB // PB 1 ** 52 ** SPI_SCK
-#define PORT_AT_PIN_53 PortB // PB 0 ** 53 ** SPI_SS
-#define PORT_AT_PIN_54 PortF // PF 0 ** 54 ** A0
-#define PORT_AT_PIN_55 PortF // PF 1 ** 55 ** A1
-#define PORT_AT_PIN_56 PortF // PF 2 ** 56 ** A2
-#define PORT_AT_PIN_57 PortF // PF 3 ** 57 ** A3
-#define PORT_AT_PIN_58 PortF // PF 4 ** 58 ** A4
-#define PORT_AT_PIN_59 PortF // PF 5 ** 59 ** A5
-#define PORT_AT_PIN_60 PortF // PF 6 ** 60 ** A6
-#define PORT_AT_PIN_61 PortF // PF 7 ** 61 ** A7
-#define PORT_AT_PIN_62 PortK // PK 0 ** 62 ** A8
-#define PORT_AT_PIN_63 PortK // PK 1 ** 63 ** A9
-#define PORT_AT_PIN_64 PortK // PK 2 ** 64 ** A10
-#define PORT_AT_PIN_65 PortK // PK 3 ** 65 ** A11
-#define PORT_AT_PIN_66 PortK // PK 4 ** 66 ** A12
-#define PORT_AT_PIN_67 PortK // PK 5 ** 67 ** A13
-#define PORT_AT_PIN_68 PortK // PK 6 ** 68 ** A14
-#define PORT_AT_PIN_69 PortK // PK 7 ** 69 ** A15
-
-#define PORTMSK_AT_PIN_0 _BV( 0 ) // PE 0 ** 0 ** USART0_RX
-#define PORTMSK_AT_PIN_1 _BV( 1 ) // PE 1 ** 1 ** USART0_TX
-#define PORTMSK_AT_PIN_2 _BV( 4 ) // PE 4 ** 2 ** PWM2
-#define PORTMSK_AT_PIN_3 _BV( 5 ) // PE 5 ** 3 ** PWM3
-#define PORTMSK_AT_PIN_4 _BV( 5 ) // PG 5 ** 4 ** PWM4
-#define PORTMSK_AT_PIN_5 _BV( 3 ) // PE 3 ** 5 ** PWM5
-#define PORTMSK_AT_PIN_6 _BV( 3 ) // PH 3 ** 6 ** PWM6
-#define PORTMSK_AT_PIN_7 _BV( 4 ) // PH 4 ** 7 ** PWM7
-#define PORTMSK_AT_PIN_8 _BV( 5 ) // PH 5 ** 8 ** PWM8
-#define PORTMSK_AT_PIN_9 _BV( 6 ) // PH 6 ** 9 ** PWM9
-#define PORTMSK_AT_PIN_10 _BV( 4 ) // PB 4 ** 10 ** PWM10
-#define PORTMSK_AT_PIN_11 _BV( 5 ) // PB 5 ** 11 ** PWM11
-#define PORTMSK_AT_PIN_12 _BV( 6 ) // PB 6 ** 12 ** PWM12
-#define PORTMSK_AT_PIN_13 _BV( 7 ) // PB 7 ** 13 ** PWM13
-#define PORTMSK_AT_PIN_14 _BV( 1 ) // PJ 1 ** 14 ** USART3_TX
-#define PORTMSK_AT_PIN_15 _BV( 0 ) // PJ 0 ** 15 ** USART3_RX
-#define PORTMSK_AT_PIN_16 _BV( 1 ) // PH 1 ** 16 ** USART2_TX
-#define PORTMSK_AT_PIN_17 _BV( 0 ) // PH 0 ** 17 ** USART2_RX
-#define PORTMSK_AT_PIN_18 _BV( 3 ) // PD 3 ** 18 ** USART1_TX
-#define PORTMSK_AT_PIN_19 _BV( 2 ) // PD 2 ** 19 ** USART1_RX
-#define PORTMSK_AT_PIN_20 _BV( 1 ) // PD 1 ** 20 ** I2C_SDA
-#define PORTMSK_AT_PIN_21 _BV( 0 ) // PD 0 ** 21 ** I2C_SCL
-#define PORTMSK_AT_PIN_22 _BV( 0 ) // PA 0 ** 22 ** D22
-#define PORTMSK_AT_PIN_23 _BV( 1 ) // PA 1 ** 23 ** D23
-#define PORTMSK_AT_PIN_24 _BV( 2 ) // PA 2 ** 24 ** D24
-#define PORTMSK_AT_PIN_25 _BV( 3 ) // PA 3 ** 25 ** D25
-#define PORTMSK_AT_PIN_26 _BV( 4 ) // PA 4 ** 26 ** D26
-#define PORTMSK_AT_PIN_27 _BV( 5 ) // PA 5 ** 27 ** D27
-#define PORTMSK_AT_PIN_28 _BV( 6 ) // PA 6 ** 28 ** D28
-#define PORTMSK_AT_PIN_29 _BV( 7 ) // PA 7 ** 29 ** D29
-#define PORTMSK_AT_PIN_30 _BV( 7 ) // PC 7 ** 30 ** D30
-#define PORTMSK_AT_PIN_31 _BV( 6 ) // PC 6 ** 31 ** D31
-#define PORTMSK_AT_PIN_32 _BV( 5 ) // PC 5 ** 32 ** D32
-#define PORTMSK_AT_PIN_33 _BV( 4 ) // PC 4 ** 33 ** D33
-#define PORTMSK_AT_PIN_34 _BV( 3 ) // PC 3 ** 34 ** D34
-#define PORTMSK_AT_PIN_35 _BV( 2 ) // PC 2 ** 35 ** D35
-#define PORTMSK_AT_PIN_36 _BV( 1 ) // PC 1 ** 36 ** D36
-#define PORTMSK_AT_PIN_37 _BV( 0 ) // PC 0 ** 37 ** D37
-#define PORTMSK_AT_PIN_38 _BV( 7 ) // PD 7 ** 38 ** D38
-#define PORTMSK_AT_PIN_39 _BV( 2 ) // PG 2 ** 39 ** D39
-#define PORTMSK_AT_PIN_40 _BV( 1 ) // PG 1 ** 40 ** D40
-#define PORTMSK_AT_PIN_41 _BV( 0 ) // PG 0 ** 41 ** D41
-#define PORTMSK_AT_PIN_42 _BV( 7 ) // PL 7 ** 42 ** D42
-#define PORTMSK_AT_PIN_43 _BV( 6 ) // PL 6 ** 43 ** D43
-#define PORTMSK_AT_PIN_44 _BV( 5 ) // PL 5 ** 44 ** D44
-#define PORTMSK_AT_PIN_45 _BV( 4 ) // PL 4 ** 45 ** D45
-#define PORTMSK_AT_PIN_46 _BV( 3 ) // PL 3 ** 46 ** D46
-#define PORTMSK_AT_PIN_47 _BV( 2 ) // PL 2 ** 47 ** D47
-#define PORTMSK_AT_PIN_48 _BV( 1 ) // PL 1 ** 48 ** D48
-#define PORTMSK_AT_PIN_49 _BV( 0 ) // PL 0 ** 49 ** D49
-#define PORTMSK_AT_PIN_50 _BV( 3 ) // PB 3 ** 50 ** SPI_MISO
-#define PORTMSK_AT_PIN_51 _BV( 2 ) // PB 2 ** 51 ** SPI_MOSI
-#define PORTMSK_AT_PIN_52 _BV( 1 ) // PB 1 ** 52 ** SPI_SCK
-#define PORTMSK_AT_PIN_53 _BV( 0 ) // PB 0 ** 53 ** SPI_SS
-#define PORTMSK_AT_PIN_54 _BV( 0 ) // PF 0 ** 54 ** A0
-#define PORTMSK_AT_PIN_55 _BV( 1 ) // PF 1 ** 55 ** A1
-#define PORTMSK_AT_PIN_56 _BV( 2 ) // PF 2 ** 56 ** A2
-#define PORTMSK_AT_PIN_57 _BV( 3 ) // PF 3 ** 57 ** A3
-#define PORTMSK_AT_PIN_58 _BV( 4 ) // PF 4 ** 58 ** A4
-#define PORTMSK_AT_PIN_59 _BV( 5 ) // PF 5 ** 59 ** A5
-#define PORTMSK_AT_PIN_60 _BV( 6 ) // PF 6 ** 60 ** A6
-#define PORTMSK_AT_PIN_61 _BV( 7 ) // PF 7 ** 61 ** A7
-#define PORTMSK_AT_PIN_62 _BV( 0 ) // PK 0 ** 62 ** A8
-#define PORTMSK_AT_PIN_63 _BV( 1 ) // PK 1 ** 63 ** A9
-#define PORTMSK_AT_PIN_64 _BV( 2 ) // PK 2 ** 64 ** A10
-#define PORTMSK_AT_PIN_65 _BV( 3 ) // PK 3 ** 65 ** A11
-#define PORTMSK_AT_PIN_66 _BV( 4 ) // PK 4 ** 66 ** A12
-#define PORTMSK_AT_PIN_67 _BV( 5 ) // PK 5 ** 67 ** A13
-#define PORTMSK_AT_PIN_68 _BV( 6 ) // PK 6 ** 68 ** A14
-#define PORTMSK_AT_PIN_69 _BV( 7 ) // PK 7 ** 69 ** A15
-
-////////////Arduino pin to Timer Regs mapping
-#define TIMER_AT_PIN_2 3B
-#define TCCR_AT_PIN_2 TCCR3A
-
-#define TIMER_AT_PIN_3 3C
-#define TCCR_AT_PIN_3 TCCR3A
-
-#define TIMER_AT_PIN_4 0B
-#define TCCR_AT_PIN_4 TCCR0A
-
-#define TIMER_AT_PIN_5 3A
-#define TCCR_AT_PIN_5 TCCR3A
-
-#define TIMER_AT_PIN_6 4A
-#define TCCR_AT_PIN_6 TCCR4A
-
-#define TIMER_AT_PIN_7 4B
-#define TCCR_AT_PIN_7 TCCR4A
-
-#define TIMER_AT_PIN_8 4C
-#define TCCR_AT_PIN_8 TCCR4A
-
-#define TIMER_AT_PIN_9 2B
-#define TCCR_AT_PIN_9 TCCR2A
-
-#define TIMER_AT_PIN_10 2A
-#define TCCR_AT_PIN_10 TCCR2A
-
-#define TIMER_AT_PIN_11 1A
-#define TCCR_AT_PIN_11 TCCR1A
-
-#define TIMER_AT_PIN_12 1B
-#define TCCR_AT_PIN_12 TCCR1A
-
-#define TIMER_AT_PIN_13 0A
-#define TCCR_AT_PIN_13 TCCR0A
-
-#define TIMER_AT_PIN_44 5C
-#define TCCR_AT_PIN_44 TCCR5A
-
-#define TIMER_AT_PIN_45 5B
-#define TCCR_AT_PIN_45 TCCR5A
-
-#define TIMER_AT_PIN_46 5A
-#define TCCR_AT_PIN_46 TCCR5A
-
-
-////////////PORT to DDRX mapping
-#define DIR_REG_AT_PortA DDRA
-#define DIR_REG_AT_PortB DDRB
-#define DIR_REG_AT_PortC DDRC
-#define DIR_REG_AT_PortD DDRD
-#define DIR_REG_AT_PortE DDRE
-#define DIR_REG_AT_PortF DDRF
-#define DIR_REG_AT_PortG DDRG
-#define DIR_REG_AT_PortH DDRH
-
-#define DIR_REG_AT_PortJ DDRJ
-#define DIR_REG_AT_PortK DDRK
-#define DIR_REG_AT_PortL DDRL
-
-////////////PORT to PORTX mapping
-#define OUTPUT_REG_AT_PortA PORTA
-#define OUTPUT_REG_AT_PortB PORTB
-#define OUTPUT_REG_AT_PortC PORTC
-#define OUTPUT_REG_AT_PortD PORTD
-#define OUTPUT_REG_AT_PortE PORTE
-#define OUTPUT_REG_AT_PortF PORTF
-#define OUTPUT_REG_AT_PortG PORTG
-#define OUTPUT_REG_AT_PortH PORTH
-
-#define OUTPUT_REG_AT_PortJ PORTJ
-#define OUTPUT_REG_AT_PortK PORTK
-#define OUTPUT_REG_AT_PortL PORTL
-
-////////////PORT to PINX(input regs) mapping
-#define INPUT_REG_AT_PortA PINA
-#define INPUT_REG_AT_PortB PINB
-#define INPUT_REG_AT_PortC PINC
-#define INPUT_REG_AT_PortD PIND
-#define INPUT_REG_AT_PortE PINE
-#define INPUT_REG_AT_PortF PINF
-#define INPUT_REG_AT_PortG PING
-#define INPUT_REG_AT_PortH PINH
-
-#define INPUT_REG_AT_PortJ PINJ
-#define INPUT_REG_AT_PortK PINK
-#define INPUT_REG_AT_PortL PINL
-
-#else /* not __AVR_ATmega1280__ */
-
-#if defined(__AVR_ATtiny2313__)
-//no PortC on tiny2313
-//Pin[0-6] -> PortD[0-6]
-#define PORT_AT_PIN_0 PortD /* 0 */
-#define PORT_AT_PIN_1 PortD
-#define PORT_AT_PIN_2 PortD
-#define PORT_AT_PIN_3 PortD
-#define PORT_AT_PIN_4 PortD
-#define PORT_AT_PIN_5 PortD
-#define PORT_AT_PIN_6 PortD
-
-//Pin[7-14] -> PortB[0-7]
-#define PORT_AT_PIN_7 PortB
-#define PORT_AT_PIN_8 PortB /* 8 */
-#define PORT_AT_PIN_9 PortB
-#define PORT_AT_PIN_10 PortB
-#define PORT_AT_PIN_11 PortB
-#define PORT_AT_PIN_12 PortB
-#define PORT_AT_PIN_13 PortB
-#define PORT_AT_PIN_14 PortB
-
-#elif defined(__AVR_ATtiny26__)
-
-//Pin[0-6] -> PortD[0-6]
-#define PORT_AT_PIN_0 PortB /* 0 */
-#define PORT_AT_PIN_1 PortB
-#define PORT_AT_PIN_2 PortB
-#define PORT_AT_PIN_3 PortB
-#define PORT_AT_PIN_4 PortB
-#define PORT_AT_PIN_5 PortB
-#define PORT_AT_PIN_6 PortB
-
-
-//D[7-13] and A[0-9] share the same pins on Attiny26
-#define PORT_AT_PIN_7 PortA /* 0 */
-#define PORT_AT_PIN_8 PortA
-#define PORT_AT_PIN_9 PortA
-#define PORT_AT_PIN_10 PortA
-#define PORT_AT_PIN_11 PortA
-#define PORT_AT_PIN_12 PortA
-#define PORT_AT_PIN_13 PortA
-
-#else // Atmega8 / Atmegax8
-#define PORT_AT_PIN_0 PortD /* 0 */
-#define PORT_AT_PIN_1 PortD
-#define PORT_AT_PIN_2 PortD
-#define PORT_AT_PIN_3 PortD
-#define PORT_AT_PIN_4 PortD
-#define PORT_AT_PIN_5 PortD
-#define PORT_AT_PIN_6 PortD
-#define PORT_AT_PIN_7 PortD
-#define PORT_AT_PIN_8 PortB /* 8 */
-#define PORT_AT_PIN_9 PortB
-#define PORT_AT_PIN_10 PortB
-#define PORT_AT_PIN_11 PortB
-#define PORT_AT_PIN_12 PortB
-#define PORT_AT_PIN_13 PortB
-#define PORT_AT_PIN_14 PortC /* 14 */
-#define PORT_AT_PIN_15 PortC
-#define PORT_AT_PIN_16 PortC
-#define PORT_AT_PIN_17 PortC
-#define PORT_AT_PIN_18 PortC
-#define PORT_AT_PIN_19 PortC
-
-#define PORT_AT_PIN_20 PortB
-#define PORT_AT_PIN_21 PortB
-#endif
-
-
-#if defined(__AVR_ATtiny2313__)
-#define PORTMSK_AT_PIN_0 _BV(0)
-#define PORTMSK_AT_PIN_1 _BV(1)
-#define PORTMSK_AT_PIN_2 _BV(2)
-#define PORTMSK_AT_PIN_3 _BV(3)
-#define PORTMSK_AT_PIN_4 _BV(4)
-#define PORTMSK_AT_PIN_5 _BV(5)
-#define PORTMSK_AT_PIN_6 _BV(6)
-#define PORTMSK_AT_PIN_7 _BV(0)
-#define PORTMSK_AT_PIN_8 _BV(1)
-#define PORTMSK_AT_PIN_9 _BV(2)
-#define PORTMSK_AT_PIN_10 _BV(3)
-#define PORTMSK_AT_PIN_11 _BV(4)
-#define PORTMSK_AT_PIN_12 _BV(5)
-#define PORTMSK_AT_PIN_13 _BV(6)
-#define PORTMSK_AT_PIN_14 _BV(7)
-
-#elif defined(__AVR_ATtiny26__)
-
-#define PORTMSK_AT_PIN_0 _BV(0)
-#define PORTMSK_AT_PIN_1 _BV(1)
-#define PORTMSK_AT_PIN_2 _BV(2)
-#define PORTMSK_AT_PIN_3 _BV(3)
-#define PORTMSK_AT_PIN_4 _BV(4)
-#define PORTMSK_AT_PIN_5 _BV(5)
-#define PORTMSK_AT_PIN_6 _BV(6)
-#define PORTMSK_AT_PIN_7 _BV(0)
-#define PORTMSK_AT_PIN_8 _BV(1)
-#define PORTMSK_AT_PIN_9 _BV(2)
-#define PORTMSK_AT_PIN_10 _BV(3)
-#define PORTMSK_AT_PIN_11 _BV(4)
-#define PORTMSK_AT_PIN_12 _BV(5)
-#define PORTMSK_AT_PIN_13 _BV(6)
-
-#else //Atmega8/ Atmegax8
-#define PORTMSK_AT_PIN_0 _BV(0) /* 0 port D */
-#define PORTMSK_AT_PIN_1 _BV(1)
-#define PORTMSK_AT_PIN_2 _BV(2)
-#define PORTMSK_AT_PIN_3 _BV(3)
-#define PORTMSK_AT_PIN_4 _BV(4)
-#define PORTMSK_AT_PIN_5 _BV(5)
-#define PORTMSK_AT_PIN_6 _BV(6)
-#define PORTMSK_AT_PIN_7 _BV(7)
-#define PORTMSK_AT_PIN_8 _BV(0) /* 8 port B */
-#define PORTMSK_AT_PIN_9 _BV(1)
-#define PORTMSK_AT_PIN_10 _BV(2)
-#define PORTMSK_AT_PIN_11 _BV(3)
-#define PORTMSK_AT_PIN_12 _BV(4)
-#define PORTMSK_AT_PIN_13 _BV(5)
-#define PORTMSK_AT_PIN_14 _BV(0) /* 14 port C */
-#define PORTMSK_AT_PIN_15 _BV(1)
-#define PORTMSK_AT_PIN_16 _BV(2)
-#define PORTMSK_AT_PIN_17 _BV(3)
-#define PORTMSK_AT_PIN_18 _BV(4)
-#define PORTMSK_AT_PIN_19 _BV(5)
-
-#define PORTMSK_AT_PIN_20 _BV(6)
-#define PORTMSK_AT_PIN_21 _BV(7)
-#endif
-////////////PORT to DDRX mapping
-#define DIR_REG_AT_PortA DDRA
-
-#define DIR_REG_AT_PortB DDRB
-
-#if defined(__AVR_ATtiny2313__)
-//no PortC on tiny2313
-#else
-#define DIR_REG_AT_PortC DDRC
-#endif
-
-#define DIR_REG_AT_PortD DDRD
-
-////////////PORT to PORTX mapping
-#define OUTPUT_REG_AT_PortA PORTA
-#define OUTPUT_REG_AT_PortB PORTB
-
-#if defined(__AVR_ATtiny2313__)
-//no PortC on tiny2313
-#else
-#define OUTPUT_REG_AT_PortC PORTC
-#endif
-
-#define OUTPUT_REG_AT_PortD PORTD
-
-////////////PORT to PINX(input regs) mapping
-#define INPUT_REG_AT_PortA PINA
-
-#define INPUT_REG_AT_PortB PINB
-
-#if defined(__AVR_ATtiny2313__)
-//no PortC on tiny2313
-#else
-#define INPUT_REG_AT_PortC PINC
-#endif
-
-#define INPUT_REG_AT_PortD PIND
-
-
-#if defined(__AVR_ATtiny2313__)
-
-#define TIMER_AT_PIN_5 0B
-#define TCCR_AT_PIN_5 TCCR0A
-
-#define TIMER_AT_PIN_9 0A
-#define TCCR_AT_PIN_9 TCCR0A
-
-#define TIMER_AT_PIN_10 1A
-#define TCCR_AT_PIN_10 TCCR1A
-
-#define TIMER_AT_PIN_11 1B
-#define TCCR_AT_PIN_11 TCCR1A
-
-#elif defined(__AVR_ATtiny26__)
-/*
-#define TIMER_AT_PIN_0 1A
-#define TCCR_AT_PIN_0 TCCR1A
-*/
-#define TIMER_AT_PIN_1 1A
-#define TCCR_AT_PIN_1 TCCR1A
-/*
-#define TIMER_AT_PIN_2 1B
-#define TCCR_AT_PIN_2 TCCR1A
-*/
-#define TIMER_AT_PIN_3 1B
-#define TCCR_AT_PIN_3 TCCR1A
-
-#else
-
-#if !defined(__AVR_ATmega8__) //for Atmega48/88/168/328
-#define TIMER_AT_PIN_3 2B
-#define TCCR_AT_PIN_3 TCCR2A
-
-#define TIMER_AT_PIN_5 0B
-#define TCCR_AT_PIN_5 TCCR0A
-
-#define TIMER_AT_PIN_6 0A
-#define TCCR_AT_PIN_6 TCCR0A
-#endif
-
-#define TIMER_AT_PIN_9 1A
-#define TCCR_AT_PIN_9 TCCR1A
-
-#define TIMER_AT_PIN_10 1B
-#define TCCR_AT_PIN_10 TCCR1A
-
-#if defined(__AVR_ATmega8__)
-#define TIMER_AT_PIN_11 2
-#define TCCR_AT_PIN_11 TCCR2
-#else //for Atmega48/88/168/328
-#define TIMER_AT_PIN_11 2A
-#define TCCR_AT_PIN_11 TCCR2A
-#endif
-
-#endif
-
-#endif
-
-
-
-#define MERGE_TO_FUNC(prefix, id) prefix##_##id
-#define EXPAND_WRAPPER( NEXTLEVEL, ...) NEXTLEVEL( __VA_ARGS__ )
-
-
-
-#define _PWM_SET(id, val) \
- do{ \
- OCR##id = val; \
- } \
- while(0)
-
-#define _PWM_ENABLE(TCCR, id) sbi(TCCR, COM##id##1)
-#define _PWM_DISABLE(TCCR, id) cbi(TCCR, COM##id##1)
-
-#define _SET_OUTPUT(port_id, msk) PORTID_TO_DIR_REG(port_id) |= (msk)
-#define _SET_INTPUT(port_id, msk) PORTID_TO_DIR_REG(port_id) &= ~(msk)
-
-#define _D_WRITE_HIGH(port_id, msk) PORTID_TO_OUTPUT_REG(port_id) |= (msk)
-#define _D_WRITE_LOW(port_id, msk) PORTID_TO_OUTPUT_REG(port_id) &= ~(msk)
-
-#define _D_READ_RAW(port_id, msk) ((PORTID_TO_INPUT_REG(port_id)) & (msk))
-#define _D_READ(port_id, msk) (((PORTID_TO_INPUT_REG(port_id)) & (msk)) != 0 ? 1 : 0)
-
-#define _D_TOGGLE(port_id, msk) PORTID_TO_OUTPUT_REG(port_id) ^= (msk)
-/*
- *
- * NOTICE: for pins at timer0A/0B,
- * if the duty cycle to be set equals to zero, using the following code:
- * DIGITAL_WRITE(pin, LOW);
- * -- or --
- * digitalWrite(pin, LOW);
- * The caller should make sure the current pin has been set to OUTPUT mode first
- */
-
-#define SET_1(pin) SET_OUTPUT(pin)
-#define SET_0(pin) SET_INPUT(pin)
-
-#define SET_0x1(pin) SET_OUTPUT(pin)
-#define SET_0x0(pin) SET_INPUT(pin)
-
-#define D_WRITE_HIGH(pin) EXPAND_WRAPPER(_D_WRITE_HIGH, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-#define D_WRITE_LOW(pin) EXPAND_WRAPPER(_D_WRITE_LOW, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-
-#define D_WRITE_1(pin) D_WRITE_HIGH(pin)
-#define D_WRITE_0(pin) D_WRITE_LOW(pin)
-
-#define D_WRITE_0x1(pin) D_WRITE_HIGH(pin)
-#define D_WRITE_0x0(pin) D_WRITE_LOW(pin)
-
-#define D_WRITE_ENABLE(pin) D_WRITE_HIGH(pin)
-#define D_WRITE_DISABLE(pin) D_WRITE_LOW(pin)
-
-#define SET_OUTPUT(pin) EXPAND_WRAPPER(_SET_OUTPUT, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-#define SET_INPUT(pin) EXPAND_WRAPPER(_SET_INTPUT, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-
-#define pin_mode(pin, mode) SET_##mode(pin)
-#define pin_pullup(pin, val) D_WRITE_##val(pin)
-#define pin_toggle(pin) EXPAND_WRAPPER(_D_TOGGLE, ARDUINOPIN_TO_PORTID(pin), ARDUINOPIN_TO_PORTMSK(pin) )
-
-
-#endif /* PINS_H */
View
36 74hc165_shiftin/pins/digital.h
@@ -0,0 +1,36 @@
+/*
+ * digital.h
+ *
+ * Lightweight macro implementation of AVR pin numbering for
+ * accessing Atmel digital and analog pins.
+ *
+ * pin_mode(A1, OUTPUT);
+ * digital_write(A1, HIGH);
+ * pin_mode(A2, INPUT);
+ * digital_read(A2);
+ *
+ * This file is based on the excellent ArduinoLite project by
+ * Shikai Chen <csk@live.com>.
+ *
+ * http://code.google.com/p/arduino-lite/
+ * http://www.csksoft.net/
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright (c) 2010-2011 Shikai Chen, Mika Tuupola
+ *
+ * Licensed under the LGPL 2.1 license:
+ * http://www.opensource.org/licenses/lgpl-2.1.php
+ */
+
+#ifndef DIGITAL_H
+#define DIGITAL_H
+#include "pins.h"
+
+#define digital_read(pin) EXPAND_WRAPPER(_DIGITAL_READ, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+#define digital_read_raw(pin) EXPAND_WRAPPER(_DIGITAL_READ_RAW, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+#define digital_write(pin, val) DIGITAL_WRITE_##val(pin)
+#define digital_toggle(pin) EXPAND_WRAPPER(_DIGITAL_TOGGLE, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+
+#endif /* DIGITAL_H */
View
231 74hc165_shiftin/pins/pins.h
@@ -0,0 +1,231 @@
+/*
+ * pins.h
+ *
+ * Lightweight macro implementation of AVR pin numbering for
+ * accessing Atmel digital and analog pins.
+ *
+ * pin_mode(A1, OUTPUT);
+ * digital_write(A1, HIGH);
+ * pin_mode(A2, INPUT);
+ * digital_read(A2);
+ *
+ * This file is based on the excellent ArduinoLite project by
+ * Shikai Chen <csk@live.com>.
+ *
+ * http://code.google.com/p/arduino-lite/
+ * http://www.csksoft.net/
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright (c) 2010-2011 Shikai Chen, Mika Tuupola
+ *
+ * Licensed under the LGPL 2.1 license:
+ * http://www.opensource.org/licenses/lgpl-2.1.php
+ */
+
+#ifndef PINS_H
+#define PINS_H
+
+#include <avr/sfr_defs.h>
+#include <avr/io.h>
+
+/* #include "arduino.h" */
+
+#define HIGH 0x1
+#define LOW 0x0
+
+#define INPUT 0x0
+#define OUTPUT 0x1
+
+#define ENABLE 0x1
+#define DISABLE 0x0
+
+#define PIN_TO_PORT(x) PORT_AT_PIN_##x
+#define PIN_TO_MASK(x) MASK_AT_PIN_##x
+
+#define PORT_TO_DIRECTION_REGISTER(x) DIRECTION_REGISTER_AT_##x
+#define PORT_TO_OUTPUT_REGISTER(x) OUTPUT_REGISTER_AT_##x
+#define PORT_TO_INPUT_REGISTER(x) INPUT_REGISTER_AT_##x
+
+#ifdef PORTA
+#define DIRECTION_REGISTER_AT_PortA DDRA
+#define OUTPUT_REGISTER_AT_PortA PORTA
+#define INPUT_REGISTER_AT_PortA PINA
+
+#define PORT_AT_PIN_A0 PortA
+#define PORT_AT_PIN_A1 PortA
+#define PORT_AT_PIN_A2 PortA
+#define PORT_AT_PIN_A3 PortA
+#define PORT_AT_PIN_A4 PortA
+#define PORT_AT_PIN_A5 PortA
+#define PORT_AT_PIN_A6 PortA
+#define PORT_AT_PIN_A7 PortA
+
+#define MASK_AT_PIN_A0 _BV(0)
+#define MASK_AT_PIN_A1 _BV(1)
+#define MASK_AT_PIN_A2 _BV(2)
+#define MASK_AT_PIN_A3 _BV(3)
+#define MASK_AT_PIN_A4 _BV(4)
+#define MASK_AT_PIN_A5 _BV(5)
+#define MASK_AT_PIN_A6 _BV(6)
+#define MASK_AT_PIN_A7 _BV(7)
+#endif
+
+#ifdef PORTB
+#define DIRECTION_REGISTER_AT_PortB DDRB
+#define OUTPUT_REGISTER_AT_PortB PORTB
+#define INPUT_REGISTER_AT_PortB PINB
+
+#define PORT_AT_PIN_B0 PortB
+#define PORT_AT_PIN_B1 PortB
+#define PORT_AT_PIN_B2 PortB
+#define PORT_AT_PIN_B3 PortB
+#define PORT_AT_PIN_B4 PortB
+#define PORT_AT_PIN_B5 PortB
+#define PORT_AT_PIN_B6 PortB
+#define PORT_AT_PIN_B7 PortB
+
+#define MASK_AT_PIN_B0 _BV(0)
+#define MASK_AT_PIN_B1 _BV(1)
+#define MASK_AT_PIN_B2 _BV(2)
+#define MASK_AT_PIN_B3 _BV(3)
+#define MASK_AT_PIN_B4 _BV(4)
+#define MASK_AT_PIN_B5 _BV(5)
+#define MASK_AT_PIN_B6 _BV(6)
+#define MASK_AT_PIN_B7 _BV(7)
+#endif
+
+#ifdef PORTC
+#define DIRECTION_REGISTER_AT_PortC DDRC
+#define OUTPUT_REGISTER_AT_PortC PORTC
+#define INPUT_REGISTER_AT_PortC PINC
+
+#define PORT_AT_PIN_C0 PortC
+#define PORT_AT_PIN_C1 PortC
+#define PORT_AT_PIN_C2 PortC
+#define PORT_AT_PIN_C3 PortC
+#define PORT_AT_PIN_C4 PortC
+#define PORT_AT_PIN_C5 PortC
+#define PORT_AT_PIN_C6 PortC
+#define PORT_AT_PIN_C7 PortC
+
+#define MASK_AT_PIN_C0 _BV(0)
+#define MASK_AT_PIN_C1 _BV(1)
+#define MASK_AT_PIN_C2 _BV(2)
+#define MASK_AT_PIN_C3 _BV(3)
+#define MASK_AT_PIN_C4 _BV(4)
+#define MASK_AT_PIN_C5 _BV(5)
+#define MASK_AT_PIN_C6 _BV(6)
+#define MASK_AT_PIN_C7 _BV(7)
+#endif
+
+#ifdef PORTD
+#define DIRECTION_REGISTER_AT_PortD DDRD
+#define OUTPUT_REGISTER_AT_PortD PORTD
+#define INPUT_REGISTER_AT_PortD PIND
+#define PORT_AT_PIN_D0 PortD
+#define PORT_AT_PIN_D1 PortD
+#define PORT_AT_PIN_D2 PortD
+#define PORT_AT_PIN_D3 PortD
+#define PORT_AT_PIN_D4 PortD
+#define PORT_AT_PIN_D5 PortD
+#define PORT_AT_PIN_D6 PortD
+#define PORT_AT_PIN_D7 PortD
+#define MASK_AT_PIN_D0 _BV(0)
+#define MASK_AT_PIN_D1 _BV(1)
+#define MASK_AT_PIN_D2 _BV(2)
+#define MASK_AT_PIN_D3 _BV(3)
+#define MASK_AT_PIN_D4 _BV(4)
+#define MASK_AT_PIN_D5 _BV(5)
+#define MASK_AT_PIN_D6 _BV(6)
+#define MASK_AT_PIN_D7 _BV(7)
+#endif
+
+#ifdef PORTE
+#define DIRECTION_REGISTER_AT_PortE DDRE
+#define OUTPUT_REGISTER_AT_PortE PORTE
+#define INPUT_REGISTER_AT_PortE PINE
+
+#define PORT_AT_PIN_E0 PortE
+#define PORT_AT_PIN_E1 PortE
+#define PORT_AT_PIN_E2 PortE
+#define PORT_AT_PIN_E3 PortE
+#define PORT_AT_PIN_E4 PortE
+#define PORT_AT_PIN_E5 PortE
+#define PORT_AT_PIN_E6 PortE
+#define PORT_AT_PIN_E7 PortE
+
+#define MASK_AT_PIN_E0 _BV(0)
+#define MASK_AT_PIN_E1 _BV(1)
+#define MASK_AT_PIN_E2 _BV(2)
+#define MASK_AT_PIN_E3 _BV(3)
+#define MASK_AT_PIN_E4 _BV(4)
+#define MASK_AT_PIN_E5 _BV(5)
+#define MASK_AT_PIN_E6 _BV(6)
+#define MASK_AT_PIN_E7 _BV(7)
+#endif
+
+#ifdef PORTF
+#define DIRECTION_REGISTER_AT_PortF DDRF
+#define OUTPUT_REGISTER_AT_PortF PORTF
+#define INPUT_REGISTER_AT_PortF PINF
+
+#define PORT_AT_PIN_F0 PortF
+#define PORT_AT_PIN_F1 PortF
+#define PORT_AT_PIN_F2 PortF
+#define PORT_AT_PIN_F3 PortF
+#define PORT_AT_PIN_F4 PortF
+#define PORT_AT_PIN_F5 PortF
+#define PORT_AT_PIN_F6 PortF
+#define PORT_AT_PIN_F7 PortF
+
+#define MASK_AT_PIN_F0 _BV(0)
+#define MASK_AT_PIN_F1 _BV(1)
+#define MASK_AT_PIN_F2 _BV(2)
+#define MASK_AT_PIN_F3 _BV(3)
+#define MASK_AT_PIN_F4 _BV(4)
+#define MASK_AT_PIN_F5 _BV(5)
+#define MASK_AT_PIN_F6 _BV(6)
+#define MASK_AT_PIN_F7 _BV(7)
+#endif
+
+#define MERGE_TO_FUNC(prefix, id) prefix##_##id
+#define EXPAND_WRAPPER(NEXTLEVEL, ...) NEXTLEVEL(__VA_ARGS__)
+
+#define _SET_OUTPUT(port_id, msk) PORT_TO_DIRECTION_REGISTER(port_id) |= (msk)
+#define _SET_INPUT(port_id, msk) PORT_TO_DIRECTION_REGISTER(port_id) &= ~(msk)
+
+#define _DIGITAL_WRITE_HIGH(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) |= (msk)
+#define _DIGITAL_WRITE_LOW(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) &= ~(msk)
+
+#define _DIGITAL_READ_RAW(port_id, msk) ((PORT_TO_INPUT_REGISTER(port_id)) & (msk))
+#define _DIGITAL_READ(port_id, msk) (((PORT_TO_INPUT_REGISTER(port_id)) & (msk)) != 0 ? 1 : 0)
+
+#define _DIGITAL_TOGGLE(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) ^= (msk)
+
+#define SET_1(pin) SET_OUTPUT(pin)
+#define SET_0(pin) SET_INPUT(pin)
+
+#define SET_0x1(pin) SET_OUTPUT(pin)
+#define SET_0x0(pin) SET_INPUT(pin)
+
+#define DIGITAL_WRITE_HIGH(pin) EXPAND_WRAPPER(_DIGITAL_WRITE_HIGH, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+#define DIGITAL_WRITE_LOW(pin) EXPAND_WRAPPER(_DIGITAL_WRITE_LOW, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+
+#define DIGITAL_WRITE_1(pin) DIGITAL_WRITE_HIGH(pin)
+#define DIGITAL_WRITE_0(pin) DIGITAL_WRITE_LOW(pin)
+
+#define DIGITAL_WRITE_0x1(pin) DIGITAL_WRITE_HIGH(pin)
+#define DIGITAL_WRITE_0x0(pin) DIGITAL_WRITE_LOW(pin)
+
+#define DIGITAL_WRITE_ENABLE(pin) DIGITAL_WRITE_HIGH(pin)
+#define DIGITAL_WRITE_DISABLE(pin) DIGITAL_WRITE_LOW(pin)
+
+#define SET_OUTPUT(pin) EXPAND_WRAPPER(_SET_OUTPUT, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+#define SET_INPUT(pin) EXPAND_WRAPPER(_SET_INPUT, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
+
+#define pin_mode(pin, mode) SET_##mode(pin)
+#define pin_pullup(pin, val) DIGITAL_WRITE_##val(pin)
+
+#endif /* PINS_H */
View
74 74hc165_shiftin/shift/shift.c
@@ -0,0 +1,74 @@
+/*
+ * shift.c
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright 2011-2012 Mika Tuupola
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ */
+
+#include "pins/digital.h"
+#include "shift/shift.h"
+
+/* Assumes MSB first. */
+uint8_t shift_in(void) {
+ uint8_t byte = 0;
+ uint8_t pin_value;
+
+ for(int i=0; i<8; i++) {
+ pin_value = digital_read(SHIFT_IN_DATA);
+ byte |= (pin_value << ((8 - 1) - i));
+
+ #ifdef DEBUG
+ printf("%d = %d \n", ((8 - 1) - i), pin_value);
+ #endif
+
+ /* Pulse clock to write next bit. */
+ digital_write(SHIFT_IN_CLOCK, LOW);
+ digital_write(SHIFT_IN_CLOCK, HIGH);
+ }
+ return byte;
+}
+
+void shift_in_latch(void) {
+ digital_write(SHIFT_IN_LATCH, LOW);
+ digital_write(SHIFT_IN_LATCH, HIGH);
+}
+
+
+void shift_in_init(void) {
+ pin_mode(SHIFT_OUT_LATCH, OUTPUT);
+ pin_mode(SHIFT_OUT_CLOCK, OUTPUT);
+ pin_mode(SHIFT_OUT_DATA, INPUT);
+}
+
+/* Assumes MSB first. */
+void shift_out(uint8_t data) {
+ for(uint8_t i = 0; i < 8; i++) {
+ /* Write bit to data port. */
+ if (0 == (data & _BV(7 - i))) {
+ digital_write(SHIFT_OUT_DATA, LOW);
+ } else {
+ digital_write(SHIFT_OUT_DATA, HIGH);
+ }
+
+ /* Pulse clock to write next bit. */
+ digital_write(SHIFT_OUT_CLOCK, LOW);
+ digital_write(SHIFT_OUT_CLOCK, HIGH);
+ }
+}
+
+void shift_out_latch(void) {
+ digital_write(SHIFT_OUT_LATCH, LOW);
+ digital_write(SHIFT_OUT_LATCH, HIGH);
+}
+
+void shift_out_init(void) {
+ pin_mode(SHIFT_OUT_LATCH, OUTPUT);
+ pin_mode(SHIFT_OUT_CLOCK, OUTPUT);
+ pin_mode(SHIFT_OUT_DATA, OUTPUT);
+}
View
33 74hc165_shiftin/shift/shift.h
@@ -0,0 +1,33 @@
+/*
+ * shift.h
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright 2011-2012 Mika Tuupola
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ */
+#ifndef SHIFT_H
+#define SHIFT_H
+
+/* Configure ports here. */
+#define SHIFT_IN_LATCH B0
+#define SHIFT_IN_DATA B2
+#define SHIFT_IN_CLOCK B1
+
+#define SHIFT_OUT_LATCH B0
+#define SHIFT_OUT_DATA B2
+#define SHIFT_OUT_CLOCK B1
+
+uint8_t shift_in(void);
+void shift_in_latch(void);
+void shift_in_init(void);
+void shift_out(uint8_t data);
+void shift_out_latch(void);
+void shift_out_init(void);
+
+#endif /* SHIFT_H */
+
View
93 74hc165_shiftin/uart/uart.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2011 Mika Tuupola
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ */
+
+#include <avr/io.h>
+#include <stdio.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#ifndef BAUD
+#define BAUD 9600
+#endif
+#include <util/setbaud.h>
+
+#if defined (UBRR0H)
+
+#warning UART0
+#define UBRRxH UBRR0H
+#define UBRRxL UBRR0L
+#define UCSRxA UCSR0A
+#define U2Xx U2X0
+#define UCSRxC UCSR0C
+#define UCSZx1 UCSZ01
+#define UCSZx0 UCSZ00
+#define UCSRxB UCSR0B
+#define RXENx RXEN0
+#define TXENx TXEN0
+#define UDREx UDRE0
+#define RXCx RXC0
+#define UDRx UDR0
+#define UDRIEx UDRIE0
+
+#elif defined (UBRR1H)
+
+#warning UART1
+#define UBRRxH UBRR1H
+#define UBRRxL UBRR1L
+#define UCSRxA UCSR1A
+#define U2Xx U2X1
+#define UCSRxC UCSR1C
+#define UCSZx1 UCSZ11
+#define UCSZx0 UCSZ10
+#define UCSRxB UCSR1B
+#define RXENx RXEN1
+#define TXENx TXEN1
+#define UDREx UDRE1
+#define RXCx RXC1
+#define UDRx UDR1
+#define UDRIEx UDRIE1
+
+#else
+#error No UART?
+#endif
+
+/* http://www.cs.mun.ca/~rod/Winter2007/4723/notes/serial/serial.html */
+
+void uart_init(void) {
+ UBRRxH = UBRRH_VALUE;
+ UBRRxL = UBRRL_VALUE;
+
+#if USE_2X
+ UCSRxA |= _BV(U2Xx);
+#else
+ UCSRxA &= ~(_BV(U2Xx));
+#endif
+
+ UCSRxC = _BV(UCSZx1) | _BV(UCSZx0); /* 8-bit data */
+ UCSRxB = _BV(RXENx) | _BV(TXENx); /* Enable RX and TX */
+}
+
+int uart_putchar(char c, FILE *stream) {
+ if (c == '\n') {
+ uart_putchar('\r', stream);
+ }
+ loop_until_bit_is_set(UCSRxA, UDREx);
+ UDRx = c;
+
+ return 0;
+}
+
+int uart_getchar(FILE *stream) {
+ loop_until_bit_is_set(UCSRxA, RXCx);
+ return UDRx;
+}
View
22 74hc165_shiftin/uart.h → 74hc165_shiftin/uart/uart.h
@@ -1,12 +1,28 @@
+/*
+ * uart.h
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright 2011 Mika Tuupola
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ */
+
+#ifndef UART_H
+#define UART_H
+
int uart_putchar(char c, FILE *stream);
int uart_getchar(FILE *stream);
void uart_init(void);
-struct rx_ring;
-struct tx_ring;
-
/* http://www.ermicro.com/blog/?p=325 */
FILE uart_output = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
FILE uart_input = FDEV_SETUP_STREAM(NULL, uart_getchar, _FDEV_SETUP_READ);
+
+#endif /* UART_H */
+
View
82 74hc165_shiftin/uart_async.c → 74hc165_shiftin/uart/uart_async.c
@@ -1,3 +1,16 @@
+/*
+ * uart_async.c
+ *
+ * This file is part of Triple-A library:
+ * https://github.com/tuupola/triple-a
+ *
+ * Copyright 2011 Mika Tuupola
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ */
+
/* Based on Atmel Application Note AVR 306 */
#include <avr/io.h>
@@ -10,13 +23,58 @@
#include <util/setbaud.h>
#ifndef UART_RX_BUFFER_SIZE
-#define UART_RX_BUFFER_SIZE 32
+#define UART_RX_BUFFER_SIZE 128
#endif
#ifndef UART_TX_BUFFER_SIZE
#define UART_TX_BUFFER_SIZE 256
#endif
+#if defined (UBRR0H)
+
+#warning Using UART0
+#define UBRRxH UBRR0H
+#define UBRRxL UBRR0L
+#define UCSRxA UCSR0A
+#define U2Xx U2X0
+#define UCSRxC UCSR0C
+#define UCSZx1 UCSZ01
+#define UCSZx0 UCSZ00
+#define UCSRxB UCSR0B
+#define RXENx RXEN0
+#define TXENx TXEN0
+#define UDREx UDRE0
+#define RXCx RXC0
+#define UDRx UDR0
+#define UDRIEx UDRIE0
+
+#define USARTx_RX_vect USART_RX_vect
+#define USARTx_UDRE_vect USART_UDRE_vect
+#elif defined (UBRR1H)
+
+#warning Using UART1
+#define UBRRxH UBRR1H
+#define UBRRxL UBRR1L
+#define UCSRxA UCSR1A
+#define U2Xx U2X1
+#define UCSRxC UCSR1C
+#define UCSZx1 UCSZ11
+#define UCSZx0 UCSZ10
+#define UCSRxB UCSR1B
+#define RXENx RXEN1
+#define TXENx TXEN1
+#define UDREx UDRE1
+#define RXCx RXC1
+#define UDRx UDR1
+#define UDRIEx UDRIE1
+
+#define USARTx_RX_vect USART1_RX_vect
+#define USARTx_UDRE_vect USART1_UDRE_vect
+
+#else
+#error No UART?
+#endif
+
struct tx_ring {
int buffer[UART_TX_BUFFER_SIZE];
int start;
@@ -42,11 +100,11 @@ void uart_init(void) {
rx_buffer.start = 0;
rx_buffer.end = 0;
- UBRR0H = UBRRH_VALUE;
- UBRR0L = UBRRL_VALUE;
+ UBRRxH = UBRRH_VALUE;
+ UBRRxL = UBRRL_VALUE;
- UCSR0C = _BV(UCSZ01) | _BV(UCSZ00); /* 8-bit data */
- UCSR0B = _BV(RXEN0) | _BV(TXEN0); /* Enable RX and TX */
+ UCSRxC = _BV(UCSZx1) | _BV(UCSZx0); /* 8-bit data */
+ UCSRxB = _BV(RXENx) | _BV(TXENx); /* Enable RX and TX */
sei();
}
@@ -63,7 +121,7 @@ int uart_putchar(char c, FILE *stream) {
tx_buffer.end = write_pointer;
/* Data available. Enable the transmit interrupt for serial port 0. */
- UCSR0B |= _BV(UDRIE0);
+ UCSRxB |= _BV(UDRIEx);
}
return 0;
@@ -76,26 +134,26 @@ int uart_getchar(FILE *stream) {
return rx_buffer.buffer[read_pointer];
}
-ISR(USART_RX_vect) {
+ISR(USARTx_RX_vect) {
int write_pointer = (rx_buffer.end + 1) % UART_RX_BUFFER_SIZE;
/* Add next byte to ringbuffer if it has space available. */
if (write_pointer != rx_buffer.start){
- rx_buffer.buffer[rx_buffer.end] = UDR0;
+ rx_buffer.buffer[rx_buffer.end] = UDRx;
rx_buffer.end = write_pointer;
}
}
-ISR(USART_UDRE_vect){
+ISR(USARTx_UDRE_vect){
int read_pointer = (tx_buffer.start + 1) % UART_TX_BUFFER_SIZE;
/* Transmit next byte if data available in ringbuffer. */
if (read_pointer != tx_buffer.end) {
- UDR0 = tx_buffer.buffer[read_pointer];
+ UDRx = tx_buffer.buffer[read_pointer];
tx_buffer.start = read_pointer;
} else {
- /* Nothing to send. Disable the transmit interrupt for serial port 0. */
- UCSR0B &= ~_BV(UDRIE0);
+ /* Nothing to send. Disable the transmit interrupt for serial port x. */
+ UCSRxB &= ~_BV(UDRIEx);
}
}

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