目 录
引言.........................................................................................................................................................1
1 方案论证与选择..................................................................................................................................2
1.1 题目来源.....................................................................................................................................2
1.2 研究目的和意义 .........................................................................................................................2
1.3 主要研究内容、需重点研究的关键问题及解决思路..............................................................2
2 SD 卡简介..........................................................................................................................................4
2.1 SD 卡的系统概念..........................................................................................................................4
2.1.1 SD 卡的结构 ........................................................................................................................4
2.1.2 SD 卡的引脚定义 ................................................................................................................5
2.1.3 SD 卡 SPI 模式工作介绍 ....................................................................................................5
2.2 SD 卡总线介绍..............................................................................................................................6
2.2.1 SD 卡总线 ............................................................................................................................6
2.2.2 SPI 总线 ..............................................................................................................................7
2.2.3 总线协议.............................................................................................................................8
2.3 SD 卡的命令..................................................................................................................................9
2.3.1 SD 卡的命令格式 ................................................................................................................9
2.3.2 SD 卡的命令类型 ................................................................................................................9
3 硬件设计...........................................................................................................................................11
3.1 电源模块....................................................................................................................................11
3.2 单片机最小系统........................................................................................................................12
3.2.1 单片机原理图及其特性 ....................................................................................................12
3.2.2 STC12C5A60S2 系列单片机的内部结构 ..........................................................................14
3.2.3 单片机 STC12C5A60S2 最小系统的组成 .........................................................................14
3.2.4 带 SD 卡的 TFT 彩屏 .........................................................................................................17
4 软件设计...........................................................................................................................................19
4.1 软件设计目标.............................................................................................................................19
4.2 Keil 软件简介 ..............................................................................................................................19
4.3 Keil 软件调试功能 ......................................................................................................................19
