本芯片特性如下: 1)MCS51内核,可以利用单片及开发软件Keil软件方便开发mp3播放器,无需特殊软件平台; 2)MPEG I/II-Layer 3 hardware decoder .独立MP3 Decoder .支持48,44.1,32,24,22.05,16khz取样频率 .支持软件31阶音量控制,高中低音均衡控制 .重低音效果 3)集成DAC部件,支持PCM,IIS格式; 4)64K字节片上代码存储空间(100K次擦写寿命) 5)4K字节boot flash memory,USB/UART下载代码 6)集成USB1.1 device部件 7)MMC卡接口 8)IDE/ATAPI接口(HDD/CD-ROM Interface) 9)2通道ADC,8Khz取样 ....................... 关于该芯片的具体信息,可以访问www.atmel.com获取at89c51snd1c的datasheet. 这款MP3播放器以at89c51snd1c为核心,以硬盘为存储介质,液晶屏为双行显示,每行显示7.5个汉字,这块液晶屏以ST7920作为主控制器,内部集成8129个汉字,液晶屏在这个播放器中用来显示歌曲名称以及一些播放状态 支持FAT16,一个分区,不支持FAT32,USB1.1,速度有点慢希望大家能在这个平台上继续完善,并将成果公开。 -the chip features are as follows : a) MCS51 kernel, and can use a single software Keil software development and facilitate the development of MP3 players, without special software platform; 2), MPEG I / II-Layer 3 hardware decoder. Independent MP3 Decoder. Support 48,44.1 , 32,24,22.05,16 kHZ sampling frequency. 31 bands support software volume control, balanced high school bass control. bass results 3) DAC integrated components, support PCM, IIS format; 4) 64K-byte on-chip code storage space (100K times Erasable life) 5) 4K bytes boot flash memory, USB / UART download code 6) integrated USB 1.1 device components 7) MMC card interface 8) IDE / ATAPI interface (HDD / CD-ROM Interface) 9) 2-channel ADC, 8Khz sampling clause 8 of the chip-specific information, visit www.atmel.com at89c51snd1c 下载
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