Difference between revisions of "Matrix - Buzzer"
From FriendlyELEC WiKi
| Line 10: | Line 10: | ||
===连接=== | ===连接=== | ||
*连接到Tiny4412 SDK (1506) | *连接到Tiny4412 SDK (1506) | ||
| − | :: | + | ::首先，你需要去掉Tiny4412 SDK 1506底板上面的BP1_EN的跳线帽 |
| + | ::然后，将配件S针脚连接到GPIO PIN1, V接5V，G接地 | ||
===Linux下的C示例=== | ===Linux下的C示例=== | ||
<syntaxhighlight lang="c"> | <syntaxhighlight lang="c"> | ||
#include <stdio.h> | #include <stdio.h> | ||
| + | #include <unistd.h> | ||
| + | #include <stdlib.h> | ||
#include "libfahw.h" | #include "libfahw.h" | ||
| + | |||
| + | int parseCmd(int argc, char **argv, int *pin, int *Hz, int *duty) | ||
| + | { | ||
| + | int num = atoi(argv[1]); | ||
| + | int hz = atoi(argv[2]); | ||
| + | int dt = atoi(argv[3]); | ||
| + | |||
| + | if (hz<0) { | ||
| + | return -1; | ||
| + | } | ||
| + | if (dt<0 || dt>1000) { | ||
| + | return -1; | ||
| + | } | ||
| + | switch(num) { | ||
| + | case 0: | ||
| + | *pin = TINY4412_PWM0; | ||
| + | break; | ||
| + | case 1: | ||
| + | *pin = TINY4412_PWM1; | ||
| + | break; | ||
| + | default: | ||
| + | printf("Unsupported pin TINY4412_PWM%d\n", num); | ||
| + | num = 0; | ||
| + | *pin = TINY4412_PWM0; | ||
| + | } | ||
| + | *Hz = hz; | ||
| + | *duty = dt; | ||
| + | printf("Using config: pin=PWM%d freq=%dHz duty=%d\n", num, hz, dt); | ||
| + | return 0; | ||
| + | } | ||
| + | |||
| + | int main(int argc, char ** argv) | ||
| + | { | ||
| + | int pin = TINY4412_PWM0; | ||
| + | int Hz; | ||
| + | int duty; | ||
| + | |||
| + | if (argc == 4) { | ||
| + | if (parseCmd(argc, argv, &pin, &Hz, &duty) == -1) { | ||
| + | return -1; | ||
| + | } | ||
| + | } else { | ||
| + | Hz = 1000; | ||
| + | duty = 500; | ||
| + | printf("Usage:%s PWM[0~1] freq duty[0~1000]\n", argv[0]); | ||
| + | printf("Using default config: pin=PWM0 freq=%dHz duty=%d\n", Hz, duty); | ||
| + | } | ||
| + | |||
| + | if (PWMPlay(pin, Hz, duty) == -1) { | ||
| + | printf("Fail to output PWM\n"); | ||
| + | } | ||
| + | printf("Press enter to stop PWM\n"); | ||
| + | getchar(); | ||
| + | PWMStop(pin); | ||
| + | printf("Stopped PWM\n"); | ||
| + | return 0; | ||
| + | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| Line 23: | Line 83: | ||
cd fa-hardware | cd fa-hardware | ||
cd demo | cd demo | ||
| − | cd | + | cd buzzer |
make | make | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | 将编译生成的buzzer通过ftp上传到开发板上运行即可测试。 | |
==相关资料== | ==相关资料== | ||
Revision as of 08:16, 16 July 2015
Contents
1 介绍
2 特性
待写...
3 使用方法
3.1 连接
- 连接到Tiny4412 SDK (1506)
- 首先，你需要去掉Tiny4412 SDK 1506底板上面的BP1_EN的跳线帽
- 然后，将配件S针脚连接到GPIO PIN1, V接5V，G接地
3.2 Linux下的C示例
#include <stdio.h> #include <unistd.h> #include <stdlib.h> #include "libfahw.h" int parseCmd(int argc, char **argv, int *pin, int *Hz, int *duty) { int num = atoi(argv[1]); int hz = atoi(argv[2]); int dt = atoi(argv[3]); if (hz<0) { return -1; } if (dt<0 || dt>1000) { return -1; } switch(num) { case 0: *pin = TINY4412_PWM0; break; case 1: *pin = TINY4412_PWM1; break; default: printf("Unsupported pin TINY4412_PWM%d\n", num); num = 0; *pin = TINY4412_PWM0; } *Hz = hz; *duty = dt; printf("Using config: pin=PWM%d freq=%dHz duty=%d\n", num, hz, dt); return 0; } int main(int argc, char ** argv) { int pin = TINY4412_PWM0; int Hz; int duty; if (argc == 4) { if (parseCmd(argc, argv, &pin, &Hz, &duty) == -1) { return -1; } } else { Hz = 1000; duty = 500; printf("Usage:%s PWM[0~1] freq duty[0~1000]\n", argv[0]); printf("Using default config: pin=PWM0 freq=%dHz duty=%d\n", Hz, duty); } if (PWMPlay(pin, Hz, duty) == -1) { printf("Fail to output PWM\n"); } printf("Press enter to stop PWM\n"); getchar(); PWMStop(pin); printf("Stopped PWM\n"); return 0; }
3.3 编译并运行示例
git clone http://github.com/friendlyarm/fa-hardware.git cd fa-hardware cd demo cd buzzer make
将编译生成的buzzer通过ftp上传到开发板上运行即可测试。
