Difference between revisions of "Portsdown 4 GPIO Connections"

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(Created page with "==RPi 4 GPIO pin out== 600px * Note the RPi4 (only) can be powered with 5v directly on to GPIO 2 and 4. ===GPIO Connections for the Ports...")
 
(GPIO Connections for the Portsdown 4)
Line 24: Line 24:
 
| 6 || - || - || 0v || - || - || - || -
 
| 6 || - || - || 0v || - || - || - || -
 
|-
 
|-
| 7 || 4 || 7 || GPIO 4 || GPCLK0 || Band D2 || - || For 8-way switch
+
| 7 || 4 || 7 || GPIO 4 || GPCLK0 || Band D2 || Langstone band D5 || -
 
|-
 
|-
 
| 8 || 14 || 15 || GPIO 14 || TXD0 || ADF5355 LE || Elcom LE || For future Sig Gen
 
| 8 || 14 || 15 || GPIO 14 || TXD0 || ADF5355 LE || Elcom LE || For future Sig Gen
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| 9 || - || - || 0v || - || - || - || -
 
| 9 || - || - || 0v || - || - || - || -
 
|-
 
|-
| 10 || 15 || 16 || GPIO 15 || RXD0 || - || || Active low
+
| 10 || 15 || 16 || GPIO 15 || RXD0 || Atten LE || - || -
 
|-
 
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| 11 || 17 || 0 || GPIO 17 || FL1 || || Langstone PTT || Active low  
+
| 11 || 17 || 0 || GPIO 17 || FL1 || - || Langstone PTT || Active low  
 
|-
 
|-
 
| 12 || 18 || 1 || GPIO 18 || SPI6_CE0_N || Transmit Demand || Langstone CW Key || -
 
| 12 || 18 || 1 || GPIO 18 || SPI6_CE0_N || Transmit Demand || Langstone CW Key || -
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| 21 || 9 || 13 || GPIO 9 || SPI0_MISO || - || Langstone band D0 || -
 
| 21 || 9 || 13 || GPIO 9 || SPI0_MISO || - || Langstone band D0 || -
 
|-
 
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| 22 || 25 || 6 || GPIO 25 || SD0_DAT1 || - || Langstone band D2 || -
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| 22 || 25 || 6 || GPIO 25 || SD0_DAT1 || - || Langstone band D4 || -
 
|-
 
|-
 
| 23 || 11 || 14 || GPIO 11 || SPI0_SCLK || - || - || -
 
| 23 || 11 || 14 || GPIO 11 || SPI0_SCLK || - || - || -
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| 27 || 0 || 30 || ID_SD || SDA0 || ADF4351 LE || - || (Reserved)
 
| 27 || 0 || 30 || ID_SD || SDA0 || ADF4351 LE || - || (Reserved)
 
|-
 
|-
| 28 || 1 || 31 || ID_SC || SCL0 || - || Langstone band D7 || -
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| 28 || 1 || 31 || ID_SC || SCL0 || Band D0 || Langstone band D7 || -
 
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|-
 
| 29 || 5 || 21 || GPIO 5 || GPCLK0 || spi clock || - || -
 
| 29 || 5 || 21 || GPIO 5 || GPCLK0 || spi clock || - || -
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| 31 || 6 || 22 || GPIO 6 || GPCLK2 || spi data || - || -
 
| 31 || 6 || 22 || GPIO 6 || GPCLK2 || spi data || - || -
 
|-
 
|-
| 32 || 12 || 26 || GPIO 12 || PWM0 || Band D0 || - || -
+
| 32 || 12 || 26 || GPIO 12 || PWM0 || - || - || -
 
|-
 
|-
 
| 33 || 13 || 23 || GPIO 13 || PWM1 || - || - || -
 
| 33 || 13 || 23 || GPIO 13 || PWM1 || - || - || -
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| 34 || - || - || 0v || - || - || - || -
 
| 34 || - || - || 0v || - || - || - || -
 
|-
 
|-
| 35 || 19 || 24 || GPIO 19 || SPI6_MESO || - || Langstone band D6 || -
+
| 35 || 19 || 24 || GPIO 19 || SPI6_MESO || Band D1 || Langstone band D6 || -
 
|-
 
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| 36 || 16 || 27 || GPIO 16 || FL0 || Band D1 || - || -
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| 36 || 16 || 27 || GPIO 16 || FL0 || - || - || -
 
|-
 
|-
 
| 37 || 26 || 25 || GPIO 26 || SD0_DAT2 || - || - || -
 
| 37 || 26 || 25 || GPIO 26 || SD0_DAT2 || - || - || -

Revision as of 13:44, 18 August 2020

RPi 4 GPIO pin out

GPIO-Pinout-Diagram-2.png

  • Note the RPi4 (only) can be powered with 5v directly on to GPIO 2 and 4.

GPIO Connections for the Portsdown 4

Here is the initial list of GPIO connections.

Pin No BCM No Wiring Pi RPi Pri RPi Alt0 Primary Use Secondary Use Notes
1 - - 3.3v - - - -
2 - - 5v - - - -
3 2 8 GPIO 2 SDA1 - - -
4 - - 5v - - - -
5 3 9 GPIO 3 SCL1 - - -
6 - - 0v - - - -
7 4 7 GPIO 4 GPCLK0 Band D2 Langstone band D5 -
8 14 15 GPIO 14 TXD0 ADF5355 LE Elcom LE For future Sig Gen
9 - - 0v - - - -
10 15 16 GPIO 15 RXD0 Atten LE - -
11 17 0 GPIO 17 FL1 - Langstone PTT Active low
12 18 1 GPIO 18 SPI6_CE0_N Transmit Demand Langstone CW Key -
13 27 2 GPIO 27 SD0_DAT3 "Active" LED - Active high
14 - - 0v - - - -
15 22 3 GPIO 22 SD0_CLK Shutdown Button - Active high
16 23 4 GPIO 23 SD0_CMD - Langstone band D3 -
17 - - 3.3v - - - -
18 24 5 GPIO 24 SD0_DAT0 - Langstone band D2 -
19 10 12 GPIO 10 SPI0_MOSI - Langstone band D1 -
20 - - 0v - - - -
21 9 13 GPIO 9 SPI0_MISO - Langstone band D0 -
22 25 6 GPIO 25 SD0_DAT1 - Langstone band D4 -
23 11 14 GPIO 11 SPI0_SCLK - - -
24 8 10 GPIO 8 SPI0_CE0_N - - -
25 - - 0v - - - -
26 7 11 GPIO 7 SPI0_CE1_N - - -
27 0 30 ID_SD SDA0 ADF4351 LE - (Reserved)
28 1 31 ID_SC SCL0 Band D0 Langstone band D7 -
29 5 21 GPIO 5 GPCLK0 spi clock - -
30 - - 0v - - - -
31 6 22 GPIO 6 GPCLK2 spi data - -
32 12 26 GPIO 12 PWM0 - - -
33 13 23 GPIO 13 PWM1 - - -
34 - - 0v - - - -
35 19 24 GPIO 19 SPI6_MESO Band D1 Langstone band D6 -
36 16 27 GPIO 16 FL0 - - -
37 26 25 GPIO 26 SD0_DAT2 - - -
38 20 28 GPIO 20 SPI6_MOSI - - -
39 - - 0v - - - -
40 21 29 GPIO 21 SPI6_SCLK TX LED/PTT Drive out - -

Note that the GPIO pin names are markedly different from the RPi 3B. Each pin on the RPi4 GPIO can be referred to in many ways: its physical pin number, the Broadcom I/O number, the Wiring Pi number or the primary or alternate names. Source for GPIO designations was the Raspberry Pi 4 Model B datasheet.