实例介绍
【实例截图】
【核心代码】
目录
第 1 章 概述······················································································································1
1.1 简介································································································································1
1.2 特性································································································································1
1.3 应用································································································································3
1.4 订购信息························································································································3
1.4.1 器件选项汇总·········································································································3
1.5 简化方框图 ····················································································································4
1.6 结构概述························································································································4
1.7 ARM Cortex-M3 处理器································································································5
1.7.1 Cortex-M3 配置选项······························································································5
1.8 片上 Flash 存储器系统··································································································5
1.9 片上静态 RAM ··············································································································6
1.10 方框图····························································································································7
目录
第 2 章 存储器映射··········································································································1
2.1 存储器映射和外设寻址·································································································1
2.2 存储器映射 ····················································································································1
2.3 APB 外设地址················································································································2
2.4 存储器重映射 ················································································································3
2.5 预取指中止和数据中止异常·························································································3
目录
第 3 章 系统控制··············································································································1
3.1 简介································································································································1
3.2 引脚描述························································································································1
3.3 寄存器描述 ····················································································································1
3.4 复位································································································································2
3.4.1 复位源标识寄存器（RSID - 0x400F C180）························································3
3.5 掉电检测························································································································3
3.6 外部中断输入 ················································································································4
3.6.1 寄存器描述·············································································································4
3.6.2 外部中断标志寄存器（EXTINT - 0x400F C140）···············································4
3.6.3 外部中断模式寄存器（EXTMODE - 0x400F C148）··········································5
3.6.4 外部中断极性寄存器（EXTPOLAR - 0x400F C14C）········································6
3.7 其它系统控制和状态标志·····························································································7
3.7.1 系统控制和状态寄存器（SCS - 0x400F C1A0）·················································7
目录
第 4 章 计时和功率控制··································································································1
4.1 计时和功率控制功能汇总·····························································································1
4.2 寄存器描述 ····················································································································1
4.3 振荡器····························································································································2
4.3.1 内部RC振荡器 ·······································································································2
4.3.2 主振荡器 ················································································································3
4.3.3 RTC振荡器·············································································································4
4.4 时钟源选择多路复用·····································································································4
4.4.1 时钟源选择寄存器（CLKSRCSEL – 0x400F C10C） ·········································4
4.5 PLL0（锁相环 0）·········································································································5
4.5.1 PLL0 操作 ··············································································································5
4.5.2 PLL0 寄存器描述···································································································5
4.5.3 PLL0 控制寄存器（PLL0CON – 0x400F C080）·················································6
4.5.4 PLL0 配置寄存器（PLL0CFG – 0x400F C084） ·················································7
4.5.5 PLL0 状态寄存器（PLL0STAT – 0x400F C088）················································9
4.5.6 PLL0 中断：PLOCK0····························································································9
4.5.7 PLL0 模式 ············································································································10
4.5.8 PLL0 馈送寄存器（PLL0FEED – 0x400F C08C）·············································10
4.5.9 PLL0 和掉电模式·································································································10
4.5.10 PLL0 频率计算中的参数·····················································································10
4.5.11 确定PLL0 频率参数的过程·················································································11
4.5.12 PLL0 频率计算举例·····························································································12
4.5.13 PLL0 设置步骤·····································································································13
4.6 PLL1（锁相环 1）·······································································································13
4.6.1 PLL1 寄存器描述·································································································14
4.6.2 PLL1 控制寄存器（PLL1CON – 0x400F C0A0）··············································15
4.6.3 PLL1 配置寄存器（PLL1CFG – 0x400F C0A4）···············································15
4.6.4 PLL1 状态寄存器（PLL1STAT – 0x400F C0A8）·············································16
4.6.5 PLL1 中断：PLOCK1··························································································16
4.6.6 PLL1 馈送寄存器（PLL1FEED – 0x400F C0AC）············································17
4.6.7 PLL1 和掉电模式·································································································17
4.6.8 PLL1 频率计算中的参数·····················································································17
4.6.9 确定PLL1 频率参数的过程·················································································18
4.7 时钟分频器 ··················································································································18
4.7.1 CPU时钟配置寄存器（CCLKCFG – 0x400F C104） ········································19
4.7.2 USB时钟配置寄存器（USBCLKCFG – 0x400F C108） ···································19
4.7.3 IRC调整寄存器（IRCTRIM – 0x400F C1A4）··················································20
4.7.4 外设时钟选择寄存器 0 和 1（PCLKSEL0 – 0x400F C1A8 和PCLKSEL1 –
0x400F C1AC）···················································································································20
4.8 功率控制······················································································································21
4.8.1 睡眠模式 ··············································································································21
4.8.2 深度睡眠模式·······································································································22
广州周立功单片机发展有限公司
LPC1700 用户手册 ©2010 Guangzhou ZLGMCU Development CO., LTD.
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4.8.3 掉电模式 ··············································································································22
4.8.4 深度掉电模式·······································································································22
4.8.5 外设功率控制·······································································································23
4.8.6 寄存器描述···········································································································23
4.8.7 功率模式控制寄存器（PCON – 0x400F C0C0）···············································23
4.8.8 从低功耗模式中唤醒···························································································24
4.8.9 外设功率控制寄存器（PCONP – 0x400F C0C4）·············································24
4.8.10 功率控制注意事项·······························································································26
4.8.11 电源域 ··················································································································26
4.9 唤醒定时器 ··················································································································26
4.10 外部时钟输出引脚·······································································································26
4.10.1 时钟输出配置寄存器（CLKOUTCFG – 0x400F C1C8）··································27
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