After the single transaction waveforms are implemented in the GPIF Designer, the next step is to integrate the USB portion of the overlying firmware with the GPIF Designer output to perform write and read operations to and from the external FIFO. T

用mega8制作的mp3程序，mega8_player_V20.DREQ高电平LED1和LED2两个指示灯都亮找不到MP3文件mega8_player_V17版本的正常读MP3文件，在做板的时候把USB座电源脚和地做反了，哈哈，不过得出声已经很开心了 -Produced by mega8 mp3 program, mega8_player_V20.DREQ high LED1 and LED2 two lights are not found in the normal version of