loading单片机原理课程设计
TL0=a%6;
TR0=1; EA=1; }
//****************************结束********************************//
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单片机原理课程设计
附录2
C1U130p19XTAL1+5VP0.0/AD0P0.1/AD1P0.2/AD2P0.3/AD3P0.4/AD4P0.5/AD5P0.6/AD6P0.7/AD7P2.0/A8P2.1/A9P2.2/A10P2.3/A11P2.4/A12P2.5/A13P2.6/A14P2.7/A15P3.0/RXDP3.1/TXDP3.2/INT0P3.3/INT1P3.4/T0P3.5/T1P3.6/WRP3.7/RD393837363534333221222324252627281011121314151617abcdefgh12345678910C21830pXTAL2U2CSVCCWR1ILE(BY1/BY2)GNDWR2DI3XFERDI2DI4DI1DI5DI0DI6VREFDI7RFBIOUT2GNDIOUT1DAC083220191817161514131211C310p9R110k293031RSTdcbaPSENALEEA+5V12345678P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7AT89C51T1 波形选择U3OP1PT3 频率减T2 频率加ABCD
图5 电路连接原理图
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