目录
  复位/下载/IRQ0按钮.................................................................4
  电源指示器/通用LED................................................................5
  模拟I/O连接................................................................................5
  通用原型区域..............................................................................5
DIP开关链路选项............................................................................6
 S1-1 VREF.....................................................................................6
   功能.............................................................................................6
   用法.............................................................................................6
修订历史............................................................................................2
评估板概述........................................................................................3
 注意事项.......................................................................................3
评估板特性........................................................................................4
 电源...............................................................................................4
 RS-232接口...................................................................................4
 仿真接口.......................................................................................4
 晶振电路.......................................................................................4
外部基准电压源(ADR291) ...................................................... 4
S1-2 VOCM..................................................................................6
   功能.............................................................................................6
   用法.............................................................................................6
 S1-3 POT.......................................................................................6
   功能.............................................................................................6
   用法.............................................................................................6
 S1-4 ADC3 ....................................................................................6
 功能...............................................................................................6
 用法...............................................................................................6
S1-5 VIN− ..........................................................................................6
 功能...............................................................................................6
 用法...............................................................................................6
S1-6 VIN+ ..........................................................................................6
 功能...............................................................................................6
 用法...............................................................................................6
S1-7 ADC4 .........................................................................................6
 功能...............................................................................................6
 用法...............................................................................................6
S1-8 LED.............................................................................................6
 功能...............................................................................................6
 用法...............................................................................................6
外部连接器........................................................................................7
 模拟I/O连接器J3.........................................................................7
 电源连接器J5...............................................................................7
 仿真连接器J4...............................................................................7
 串行接口连接器J1......................................................................7
 I2
C接口连接器J6 .........................................................................7
 数字I/O连接器J2.........................................................................7
 电位器演示电路..........................................................................8
 原理图...........................................................................................9
 ADuC7020评估板器件列表....................................................11


AN-718：ADuC7020评估板参考指南.pdf