User manual

BPI-R1 User Manual
http://www.banana-pi.com http://www.sinovoip.com.cn
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CON3-P25 GND
CON3-P06 GND
CON3-P14 GND
CON3-P20 GND
J12-P03 PH5 PH5
J12-P05 PH3 PH3
J12-P04 UART7_RX PI21
J12-P06 UART7_TX PI20
J12-P01 VCC-5V
J12-P02 VCC-3V3
J12-P07 GND
J12-P08 GND
J13-P01 UART0-RX PB23
J13-P02 UART0-TX PB22
R1 UART define