單片機(jī)綜合實(shí)驗(yàn)演示的設(shè)計(jì)與制作

1、1會計(jì)學(xué)單片機(jī)綜合實(shí)驗(yàn)演示的設(shè)計(jì)與制作單片機(jī)綜合實(shí)驗(yàn)演示的設(shè)計(jì)與制作怎么做？一、一、方案選取方案選?。?.單片機(jī)最小系統(tǒng)采用AT89S51單片機(jī)芯片；2.供電電源采用USB供電；3.控制按鍵采用獨(dú)立按鍵和4X4矩陣按鍵兩種；4.數(shù)碼管顯示采用四位一體的共陰數(shù)碼管；5.液晶顯示采用LCD1602作為液晶顯示器件；6.點(diǎn)陣LED顯示屏采用8X8矩陣；7.蜂鳴器采用有源蜂鳴器；8.流水燈用用八個(gè)發(fā)光二極管；9.步進(jìn)電機(jī)采用L298N；10.使用CH340G芯片實(shí)現(xiàn)USB轉(zhuǎn)串口通信；如圖電路板所示：四位數(shù)碼管繼電器8X8點(diǎn)陣獨(dú)立按鍵4X4矩陣按鍵電源開關(guān)流水燈L298NCH340g最小系統(tǒng)芯片USB接

2、口蜂鳴器LCD1602二、原理圖如圖所示二、原理圖如圖所示：123456ABCD654321DCBATitleNumberR evisio nSizeCDate:11 -Dec-201 6Sh eet of File:C :UsersAdmin istrato rDesktopbao zi0 4.ddbDrawn B y:P1 .01P1 .12P1 .23P1 .34P1 .45P1 .5 /MOSI6P1 .6 /MSO7P1 .7 /SCK8R ST9P3 .0 /R XD10P3 .1 /TXD11P3 .212P3 .3 /INT113P3 .4 /T014P3 .5 /T115P3

3、 .6 /W R16P3 .7 /R D17XTAL218XTAL119GND20VCC40P0 .0 /AD039P0 .1 /AD138P0 .2 /AD237P0 .3 /AD336P0 .4 /AD435P0 .5 /AD534P0 .6 /AD633P0 .7 /AD732EA/VPP31ALE/PR OG30PESN29P2 .7 /A1528P2 .6 /A1427P2 .5 /A1326P2 .4 /A1225P2 .3 /A1124P2 .2 /A1023P2 .1 /A922P2 .0 /A821AT89 S51 AC RYSTAL112 MC 1022 pFC 1122

4、pFXTAL1XTAL2R ESET1R 110.2KR 121KVCCVCCR ST單片機(jī)最小系統(tǒng)D1D2D3D4D5D6D7D8R 10.3KR 20.3KR 30.3KR 40.3KR 50.3KR 60.3KR 70.3KR 80.3KP0 .0P0 .1P0 .2P0 .3P0 .4P0 .5P0 .6P0 .7LED模塊S1S2S3S4P3 .0P3 .1P3 .2P3 .3獨(dú)立按鍵模塊S5S9S1 3S1 7S6S1 0S1 4S1 8S7S1 1S1 5S1 9S8S1 2S1 6S2 0P1 .3P1 .2P1 .1P1 .0P1 .7P1 .6P1 .5P1 .44*4按鍵

5、模塊Q1R 91kVCCP1 .0蜂鳴器模塊C 1210 uF/16 VVSSVDDVLR SR /WEDB0DB1DB2DB3DB4DB5DB6DB7LED+LED-LC M16 02VCCVCCP3 .0P3 .1P3 .2P3 .3P3 .4P3 .5P3 .6P3 .7P2 .5P2 .6P2 .7液晶顯示模塊通信接口模塊R STXTAL2XTAL1P1 .7P1 .6P1 .5P1 .4P1 .3P1 .2P1 .1P1 .0P3 .0P3 .1P3 .2P3 .3P3 .4P3 .5P3 .6P3 .7P0 .0P2 .7P2 .6P0 .1P2 .5P2 .4P0 .2P2 .3

6、P2 .2P0 .3P2 .1P2 .0P0 .4D18IN4 007D17IN4 007P0 .5D16IN4 007D14IN4 007P0 .6D12IN4 007D13IN4 007P0 .7D15IN4 007D11IN4 00712J3C ON212J4C ON2R 131KD20VCC電源開關(guān)模塊abfcgdeDPY117421105abcdefg3dpdpabfcgdedpabfcgdedpabfcgdedp12986DS1abfcgdeDPY117421105abcdefg3dpdpabfcgdedpabfcgdedpabfcgdedp12986DS2AHBGCFDEEDFC

7、GBHAC S1WR 12AGND3D34D25D16D07D614D515D416XFER17WR 218ILE19VCC20Uref8R f9DGND10D713Iout212Iout111DAC 08 32D22P3 .2VCCP1 .0P1 .1P1 .2P1 .3P1 .4P1 .5P1 .6P1 .7VCCDAC0832模塊D23IN4 148D19K1R ELAY-SPDTR 181KR 171KQ6PNPVCCP3 .5123J11C ON3D24IN4 148D21K2R ELAY-SPDTR 201KR 191KQ7PNPP3 .6123J12C ON3VCC2路繼電器模塊

8、OE1D02D13D24D35D46D57Q514Q415Q316Q217Q118Q019VCC20D68D79GND10Q613Q712LE1174 HC 57 312345678161514131211109R P210 0RP0 .0P0 .1P0 .2P0 .3P0 .4P0 .5P0 .6P0 .7VCCC 160.1u FABCDEFGHA1B2C3G24G35G16Y77GND8VCC16Y015Y114Y213Y312Y411Y510Y6974 LS1 38P2 .2P2 .3P2 .4VCCVCC12345678J5C ON812345678J6C ON812345678J7

9、C ON812345678J8C ON8VCCVCC123J10C ON3LELEP2 .0VCCIN15IN27IN310IN412ENA6ENB11GND8VSS9VS4OUT12OUT23OUT313OUT414ISEN A1ISEN B15L2 98NVCCC 80.1u FC 910 0uFC 610 0uFC 70.1u FP1 .0P1 .1P1 .2P1 .3P1 .4P1 .512J2C ON2GNDB UZZER 11234J9C ON4C 130.1u F192143841251677285A13B3C4D10E6F11G15H16LED8 *8Q3PNPQ8PNPQ9P

10、NPQ2PNPQ4PNPQ5PNPQ10PNPQ11PNPR 141KR 211KR 221KR 231KR 151kR 161kR 241kR 251kVCCLED0LED1LED2LED3LED4LED5LED6LED7LED0LED1LED2LED3LED4LED5LED6LED7R 1010 0D9IN4 148P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.712 vGND1Tx D2R xD3V34UD+5UD-6X17X08Vcc16R S23 215R TS#14DTR #13DCD#12R 1#11DSR #10C TS#9U1C H3 40GY112 MC 1

11、22 pFC 222 pF+5C 40.1u FC 30.01 uF1234USB 1+5S2 1SW DPDT+5C 150.1u F+C 1410 0uF+C 510 uFD10IN4 148P3 .0P3 .112J1C ON2123456789R P110 KVCCP0 .0P0 .1P0 .2P0 .3P0 .4P0 .5P0 .6P0 .7步進(jìn)電機(jī)模塊三、三、PCB布線如圖所示：布線如圖所示： 遵循先難后易，先大后小的原則。根據(jù)要求將所有有定位要求的元件固定并鎖定。再參考原理圖根據(jù)信號流向規(guī)律，放置其他元件。四、焊接調(diào)試：四、焊接調(diào)試：焊接注意事項(xiàng)：1檢查印刷電路裸板電源正負(fù)端、各相鄰焊點(diǎn)是否短路。2檢測