STM32 PWM之实现呼吸灯 |
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QT 自定义窗体的简单实现(二)
chunfafa: 想请教博主一个问题,试了很多次,这套自定义窗体在QMainWindow里没有问题,但换成dialog就没办法实现自由拉伸窗体大小的功能了,请问怎么才能实现呢 嵌入式 移植madplay到开发板moshangliu1: 板子上带的是alsa架构的linux音频驱动,但博主的配置没启用alsa,编译madplay时要加上--with-alsa,如下:./configure --host=arm-linux-gnueabihf CC=arm-linux-gnueabihf-gcc --disable-debugging --with-alsa CPPFLAGS=-I/home/ban/madplay/source/include LDFLAGS=-L/home/ban/madplay/source/lib 参考:https://developer.aliyun.com/article/1257358 嵌入式 移植madplay到开发板moshangliu1: 在编译libmad时,如果make出现如下错误: /tmp/ccEKi4Zo.s: Assembler messages: /tmp/ccEKi4Zo.s:1400: Error: selected processor does not support `rsc ip,ip,#0' in Thumb mode /tmp/ccEKi4Zo.s:1559: Error: selected processor does not support `rsc r9,r9,#0' in Thumb mode /tmp/ccEKi4Zo.s:1976: Error: selected processor does not support `rsc r9,r9,#0' in Thumb mode /tmp/ccEKi4Zo.s:2382: Error: selected processor does not support `rsc r7,r7,#0' in Thumb mode Makefile:383: recipe for target 'synth.lo' failed make[2]: *** [synth.lo] Error 1 make[2]: 离开目录“/home/lkw/madplayer/libmad-0.15.1b” Makefile:424: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: 离开目录“/home/lkw/madplayer/libmad-0.15.1b” Makefile:249: recipe for target 'all' failed make: *** [all] Error 2 可以尝试改为:错误原因为编译器无法处理 Thumb 模式下的指令,这样修改可以在编译选项中禁用 Thumb 模式: ./configure --enable-fpm=arm --host=arm-linux CFLAGS="-marm" --disable-debugging --disable-shared --enable-static --prefix=/home/lkw/madplayer C# 图片验证码简单例子L蓝凌冰惜: 已借用,感谢博主 STM32 PWM之实现呼吸灯快乐的石头_微: 点灯大师 |
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