第四章过程通道与人机接口ppt课件

1、123456ABCD654321DCBATitleNumberRevisionSizeBDate:22-Jan-2006Sheet of File:D:教师工作资料计算机控制技术图表MyDesign.ddbDrawn By:OE19DIR1A12B118A23B217A34B316A45B415A56B514A67B613A78B712A89B811U1SN74LS245NA1B2C3OE2A4OE2B5OE16Y77Y69Y510Y411Y312Y213Y114Y015U2SN74LS138NOE1P02Q03P14Q15P26Q27P38Q39P411Q412P513Q514P615Q61

2、6P717Q718P=Q19U5SN74LS688N1OE11A121A241A361A481Y4121Y3141Y2161Y1182Y432Y352Y272Y192A1112A2132A3152A4172OE19U3SN74LS244ND0D1D2D3D4D5D6D7D0D1D2D3D4D5D6D7CLR1CLK11D13Q12D24Q25D37Q36D48Q49D513Q512D614Q615D717Q716D818Q819U4SN74LS273NRESETK1K2K8J1J4L1L4J2J3L2L3K3K4K5K6K7D0D1D2D3D4D5D6D7DATA0DATA1DATA2DATA

3、3DATA4DATA5DATA6DATA7CSIORVCCA0A1A2AENA9A8A7A6A5A4A312345678161514131211109SW1SW-DIP8VCC输入调理电路输出驱动电路 Y0Y0VOUT = VREFD020+ D121+ D222+ + Dn-12n-1）/ 2n123456ABCD654321DCBATitleNumberRevisionSizeBDate:22-Jan-2006Sheet of File:D:教师工作资料计算机控制技术图表MyDesign.ddbDrawn By:ABSn-12RRBSn-22RBS12RRBS02R2RVREFRDn-1D

4、n-2D1D010101010Vout图图4.12 DAC0832的结构框图和引脚的结构框图和引脚DAC0832接口电路接口电路图图4.14 DAC12104.14 DAC1210原理框图原理框图图图4.15 DAC12104.15 DAC1210接口电路接口电路图图4.15 DAC12104.15 DAC1210接口电路接口电路 单极性电压输出原理图单极性电压输出原理图 双极性电压输出原理图双极性电压输出原理图D/AD/A转换器的电流输出转换器的电流输出模拟信号隔离输出电路模拟信号隔离输出电路数字信号隔离输出电路数字信号隔离输出电路 逐次逼近式逐次逼近式A/D转换器原理框图转换器原理框图 双

5、积分式双积分式A/D转换的原理框图转换的原理框图电压频率式电压频率式A/D转换原理框图转换原理框图 ADC0809的结构框图和引脚的结构框图和引脚ADC0809接口电路图接口电路图123456ABCD654321DCBATitleNumberRevisionSizeBDate:23-Jan-2006Sheet of File:D:教师工作资料计算机控制技术图表MyDesign.ddbDrawn By:IN026IN127IN228IN31IN42IN53IN64IN752-8172-7142-6152-582-4182-3192-2202-121ADDC23ADDB24ADDA25CLOCK1

6、0 11REF(+)12REF(-)16 13OE9START6ALE22EOC7J?ADC0809D0D1D2D3D4D5D6D7VCC74LS3932QA1A8MHzIN0IN1IN2IN3IN4IN5IN6IN7EOC231 ASN74LS28D564 BSN74LS28D译码器YiIORIOWCECSR/C 12/8A0操作操作0XXXX 禁止禁止 X1XXX 禁止禁止 100X0启动启动12位转换位转换10001启动启动8位转换位转换1011X一次读取一次读取12位输出数据位输出数据10100输出高输出高8位输出数据位输出数据10101输出低输出低4位输出数据尾随位输出数据尾随4个个

7、0CD4501的结构和引脚图的结构和引脚图abcdegGNDfdpGNDabcefgddpabcdefgdpdpgfedcba5V（a）（b）ALEWRRDRXDTXDINT0EA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P101P112P123P134P145P156P167P178P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728PSEN29ALE/P30TXD11RXD10VCC40GND20U189C52PSENP10P11P

8、12P13P14P15P16P17T0T1INT1P00P01P02P03P04P05P06P07P00P01P02P03P04P05P06P07P20P21P22P23P24P25P26P27P20P21P22P23abfcgdeDPY117421105ab cd e fg3dpdpabfcgdedpabfcgdedpabfcgdedpC06C28C39C412LEDDPY 4-LED12345678161514131211109R1KP00P01P02P03P04P05P06P075V123456J1CON6 GNDVCCGNDVCCE R/WRS R810kEA/VP31X119X218

9、RESET9RD17WR16INT012INT113T014T115P101P112P123P134P145P156P167P178P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728PSEN29ALE/P30TXD11RXD10U1STC89C51Y112MC730pFC830pFGNDRSR/WEVCCT0四线式电阻触摸屏工作等效电路四线式电阻触摸屏工作等效电路EA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P10/T1P11/T2P

10、123P134P145P156P167P178P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728PSEN29ALE/P30TXD11RXD10U18052C2C1239456718RP1239456718RP2239456718RP3Y112MVCCVCCVCCVCCC3104VCCAIN11AIN22AIN33AIN44AIN55AIN66AIN77AIN88AIN99AIN1011AIN1112GND10RES-13RES+14CS15DOUT16DIN17CLK18EOC19VCC20U10TLC254312U?A74LS0412U?A74LS0412U?A74LS0412U?A74LS04Q19012Q29012R31KR410KR51KR64.7KACDBAD1AD2AD1AD2R710K1234567891011121314151617181920J?20PINVCCR820