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tplink tl-wr703n开发 主板上标注GPIO信息(很详细)

时间:2019-10-15 15:28:14 / 来源:你好多多DIY / 作者:多多

 

GPIOs

The AR933x platform provides 30 GPIOs. Some of them are used by the router for status LEDs, buttons and other stuff. The table below shows the results of investigations:

GPIO  Available on WR703N  AR9331 Pin  POR Value  WR703N Name  Description  MR3020 Name 
0 R4-E A78 0   Must have 0 value during bootstrap* WLAN LED/LED4
1 R2-S A77 1   Must have 1 value during bootstrap  
2 VIA B49   SPI_CS_0 Used by SPI Flash SPI_CS_0
3 VIA B51   SPI_CLK Used by SPI Flash SPI_CLK
4 VIA A57   SPI_MOSI Used by SPI Flash SPI_MOSI
5 R57-S/R60-S B50   SPI_MISO Used by SPI Flash SPI_MISO
6 R16-S B46   LDO Connected to U6 LDO* LDO
7 R15-S A54 0   *  
8 R18-E A52   USB_POWER Control USB Host Power USB_POWER
9 R82-N B68 1 TP_IN UART RXD TP_IN
10 C55-W A79   TP_OUT UART TXD TP_OUT
11 R92-E B48   RESET SW Soft Reset Switch WPS/RESET SW
12 VIA A56 0   Must have 0 value during bootstrap  
13 R3-S B66 1   Must have 0 value during bootstrap  
14 R11-N A76 0   Must have 0 value during bootstrap*  
15 R12-N B65 0   Must have 0 value during bootstrap*  
16 R13-N A75 0   Must have 0 value during bootstrap  
17 R14-N B64 1     LAN LED/LED5
18 NC A28 N/A     SLIDE SW1
19            
20 NC A27 N/A     SLIDE SW2
21            
22            
23            
24            
25            
26            
27 LED2-S/LED3-S B44   LED2/LED3 Blue PCB LED 3G LED/LED3
28 VIA A74 0   Must have 0 value during bootstrap  
29 R17-S A53 0