pcDuino上跑第一个Arduino程序_blink
入手pcDuino有一段时间了，鼓起勇气刷了个官方最新lubuntu系统，开始我的arduino之旅。刚刚调通了第一个基于arduino语言的led闪烁程序，与大家分享。Arduino就这么简单，很好上手。
目标：使接在pcduino上的led灯闪烁
硬件连接：一个led灯+限流电阻，一端接5V，另一端接pcduino上的任一GPIO(0-13)
一、搭建环境
安装官方文档刷最新ubuntu系统，很详细不再细说。其实刷机时接上debug，会有提示安装信息，不用一直盯着TX RX led。下载https://github.com/pcduino/c_enviroment上面的arduino例程。
二、编写arduino代码
我是参考arduino给的例子写的，觉得arduino语言太好上手，没有什么硬件基础都可以玩。下面编写一个led闪烁程序blink
在arduino-master\test增加blank.c文件：arduino-master\test\blink.c
[plain] view plaincopyprint?/*
* I/O test program for a10
* Blink
* Turns on an LED on for one second, then off for one second, repeatedly.
* This example code is in the public domain.
*/
#include
int led_pin = 5;
void setup()
{
if ( argc !=2 )
{
printf(“Usage %s LED_PIN_NUM(0-13)\n”, argv[0]);
exit(-1);
}
led_pin = atoi(argv[1]);
printf(“blink LED (connected to pin %d)\n”,led_pin);
// initialize the digital pin as an output.
// led_pin has an LED connected on most Arduino boards:
pinMode(led_pin, OUTPUT);
}
void loop() {
digitalWrite(led_pin, HIGH); // set the LED on
delay(1000); // wait for a second
digitalWrite(led_pin, LOW); // set the LED off
delay(1000); // wait for a second
}
/*
* I/O test program for a10
* Blink
* Turns on an LED on for one second, then off for one second, repeatedly.
* This example code is in the public domain.
*/
#include
int led_pin = 5;
void setup()
{
if ( argc !=2 )
{
printf(“Usage %s LED_PIN_NUM(0-13)\n”, argv[0]);
exit(-1);
}
led_pin = atoi(argv[1]);
printf(“blink LED (connected to pin %d)\n”,led_pin);
// initialize the digital pin as an output.
// led_pin has an LED connected on most Arduino boards:
pinMode(led_pin, OUTPUT);
}
void loop() {
digitalWrite(led_pin, HIGH); // set the LED on
delay(1000); // wait for a second
digitalWrite(led_pin, LOW); // set the LED off
delay(1000); // wait for a second
}修改arduino-master\test\Makefile:
[plain] view plaincopyprint?LIBS=-L../../sample/core -larduino -lspi
INCS=-I../../sample/core/include
TARGET=../../sample/test
OBJS = io_test adc_test pwm_test spi_test adxl345_test blink
all: $(OBJS)
@mkdir -p $(TARGET)
@mv $(OBJS) $(TARGET)
io_test: io_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
blink: blink.c
$(CC) $(LIBS) $(INCS) $< -o $@
adc_test: adc_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
pwm_test: pwm_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
spi_test: spi_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
adxl345_test: adxl345_test.c
$(CC) $< -o $@
clean:
@for i in $(OBJS); do rm -f $(TARGET)/$$i; done
LIBS=-L../../sample/core -larduino -lspi
INCS=-I../../sample/core/include
TARGET=../../sample/test
OBJS = io_test adc_test pwm_test spi_test adxl345_test blink
all: $(OBJS)
@mkdir -p $(TARGET)
@mv $(OBJS) $(TARGET)
io_test: io_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
blink: blink.c
$(CC) $(LIBS) $(INCS) $< -o $@
adc_test: adc_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
pwm_test: pwm_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
spi_test: spi_test.c
$(CC) $(LIBS) $(INCS) $< -o $@
adxl345_test: adxl345_test.c
$(CC) $< -o $@
clean:
@for i in $(OBJS); do rm -f $(TARGET)/$$i; done其中blink: blink.c是新加的led闪烁程序。就这样，代码就编写完了
三、编译
ubuntu@ubuntu :/$ cd home/ubuntu/work/arduino-master/test/
ubuntu@ubuntu :~/work/arduino-master/test$ ls
Makefile adc_test.c adxl345_test.c blink.c io_test.c pwm_test.c spi_test.c
ubuntu@ubuntu :~/work/arduino-master/test$ make
cc -L../../sample/core -larduino -lspi -I../../sample/core/include io_test.c -o io_test
cc -L../../sample/core -larduino -lspi -I../../sample/core/include adc_test.c -o adc_test
cc -L../../sample/core -larduino -lspi -I../../sample/core/include pwm_test.c -o pwm_test
cc -L../../sample/core -larduino -lspi -I../../sample/core/include spi_test.c -o spi_test
cc adxl345_test.c -o adxl345_test
cc -L../../sample/core -larduino -lspi -I../../sample/core/include blink.c -o blink
ubuntu@ubuntu :~/work/arduino-master/test$ cd ../../
ubuntu@ubuntu :~/work$ cd sample/
ubuntu@ubuntu :~/work/sample$ ls
core test
ubuntu@ubuntu :~/work/sample$ cd test/
ubuntu@ubuntu :~/work/sample/test$ ls
adc_test adxl345_test blink io_test pwm_test spi_test
ubuntu@ubuntu :~/work/sample/test$
分析Makefile可知，最终编译生成的扩展性文件在/home/ubuntu/work/sample目录下
四、测试
开始测试写的blink.c led闪烁程序，我的led接在gpio5上，传入参数5
ubuntu@ubuntu :~/work/sample/test$ ./blink 5
blink LED (connected to pin 5)
现在就可以看到接在GPIO5上的LED灯开始闪烁了。Arduino程序就这么简单，但又很灵活，不信你也可以试试。