PineCube GPIO and Test Points

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GPIO Header Pin Table

Pin Name Physical Pin (Designation) Linux GPIO Alternate Func 1 Alternate Func 2 Interrupt
1 3V3 DCDC3
2 5V PS
3 TWI1_SDA PB9 41 TWI1_SDA UART0_RX PB_EINT9
4 5V PS
5 TWI1_SCK PB8 40 TWI1_SCK UART0_TX PB_EINT8
6 GND GND
7 PWM1 PB5 37 PWM1 PB_EINT5
8 UART_TXD PB0 32 UART2_TXD PB_EINT0
9 GND GND
10 UART_RXD PB1 33 UART2_RX PB_EINT1
11 GPIO17 PC5 69 SDC2_D2
12 GPIO18 PC6 70 SDC2_D3
13 GPIO27 PC7 71 SDC2_D4
14 GND GND
15 GPIO22 PC8 72 SDC2_D5
16 GPIO23 PC9 73 SDC2_D6
17 3V3 DCDC3
18 GPIO24 PC10 74 SDC2_D7
19 SPI-MOSI PC3 67 SPI0_MOSI SDC2_D0
20 GND GND
21 SPI-MISO PC0 64 SPI0_MISO SDC2_CLK
22 PWM0 PB4 36 PWM0 PB_EINT4
23 SPI-CLK PC1 65 SPI0_CLK SDC2_CMD
24 SPI_CE0 PC2 66 SPI0_CS SDC2_RST
25 GND GND
26 SPI_CE1 PC4 68 SDC2_D1

Important notes:

  • First ball is marked with white dot
  • SPI is multiplexed also with SPI flash
  • SPI_CE1 is normal GPIO pin"
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