Expansion Interface
The HackRF One expansion interface consists of headers P9, P20, P22, and P28. These four headers are installed on the commercial HackRF One from Great Scott Gadgets.
P9 Baseband
A direct analog interface to the high speed dual ADC and dual DAC.
Pin |
Function |
---|---|
1 |
GND |
2 |
GND |
3 |
GND |
4 |
RXBBQ- |
5 |
RXBBI- |
6 |
RXBBQ+ |
7 |
RXBBI+ |
8 |
GND |
9 |
GND |
10 |
TXBBI- |
11 |
TXBBQ+ |
12 |
TXBBI+ |
13 |
TXBBQ- |
14 |
GND |
15 |
GND |
16 |
GND |
P20 GPIO
Providing access to GPIO, ADC, RTC, and power.
Pin |
Function |
---|---|
1 |
VBAT |
2 |
RTC_ALARM |
3 |
VCC |
4 |
WAKEUP |
5 |
GPIO3_8 |
6 |
GPIO3_0 |
7 |
GPIO3_10 |
8 |
GPIO3_11 |
9 |
GPIO3_12 |
10 |
GPIO3_13 |
11 |
GPIO3_14 |
12 |
GPIO3_15 |
13 |
GND |
14 |
ADC0_6 |
15 |
GND |
16 |
ADC0_2 |
17 |
VBUSCTRL |
18 |
ADC0_5 |
19 |
GND |
20 |
ADC0_0 |
21 |
VBUS |
22 |
VIN |
P22 I2S
I2S, SPI, I2C, UART, GPIO, and clocks.
Pin |
Function |
---|---|
1 |
CLKOUT |
2 |
CLKIN |
3 |
RESET |
4 |
GND |
5 |
I2C1_SCL |
6 |
I2C1_SDA |
7 |
SPIFI_MISO |
8 |
SPIFI_SCK |
9 |
SPIFI_MOSI |
10 |
GND |
11 |
VCC |
12 |
I2S0_RX_SCK |
13 |
I2S_RX_SDA |
14 |
I2S0_RX_MCLK |
15 |
I2S0_RX_WS |
16 |
I2S0_TX_SCK |
17 |
I2S0_TX_MCLK |
18 |
GND |
19 |
U0_RXD |
20 |
U0_TXD |
21 |
P2_9 |
22 |
P2_13 |
23 |
P2_8 |
24 |
SDA |
25 |
CLK6 |
26 |
SCL |
P28 SD
SDIO, GPIO, clocks, and CPLD.
Pin |
Function |
---|---|
1 |
VCC |
2 |
GND |
3 |
SD_CD |
4 |
SD_DAT3 |
5 |
SD_DAT2 |
6 |
SD_DAT1 |
7 |
SD_DAT0 |
8 |
SD_VOLT0 |
9 |
SD_CMD |
10 |
SD_POW |
11 |
SD_CLK |
12 |
GND |
13 |
GCK2 |
14 |
GCK1 |
15 |
B1AUX14 (trigger output) |
16 |
B1AUX13 (trigger input) |
17 |
CPLD_TCK |
18 |
BANK2F3M2 |
19 |
CPLD_TDI |
20 |
BANK2F3M6 |
21 |
BANK2F3M12 |
22 |
BANK2F3M4 |
Additional unpopulated headers and test points are available for test and development, but they may be incompatible with some enclosure or expansion options.
Refer to the schematics and component documentation for more information.