LM3S6911的开发板原理图。

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D C B A 33V 8 7 6 5 GND R34 10K U1RX PD4 U1TX 1 2 3 4 U6 R0 RE DE DI VCC B A GND SN75176 3 2 1 RS 3 2 1 RS1 485接口UART1 C11 104 C12 104 IC5 MAX3232 C1 C1 C2 VCC V V C2 T1OUT R1IN T2OUT R2IN GND T1IN R1OUT T2IN R2OUT 1 3 4 5 14 13 7 8 16 C13 2 6 C14 104 15 11 12 10 9 33V 104 C15 104 PA1 PA0 U1TX U1RX COM1 DB9 5 9 4 8 3 7 2 6 1 RS232 1 2 3 RS1 1 2 3 TX1 RX1 GND PA0 PA1 SSI0CLK SSI0FFS SSI0RX SSI0TX PA6 PA7 TCK TMS TDI TDO PC4 PC5 PC6 PC7 SW0 SW1 ADC0 ADC1 ADC2 ADC3 RST XTALPHY1 XTALPHY2 MOScin MOSc......