手元の環境でデフォルトで入ってるWiringNPは、gpioがエラー吐くのでソースから。
friendlyarmのだとコンパイル/インストールができなかったのでwertyzpのをビルドした。
git clone https://github.com/wertyzp/WiringNP.git
cd WiringNP/
chmod 755 build
./build
実行結果
pi@NanoPi-NEO-Core:~$ gpio readall
+-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+
| H3 | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | H3 |
+-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+
| | | 3.3v | | | 1 || 2 | | | 5v | | |
| 12 | 8 | SDA.0 | ALT5 | 0 | 3 || 4 | | | 5v | | |
| 11 | 9 | SCL.0 | ALT5 | 0 | 5 || 6 | | | 0v | | |
| 203 | 7 | GPIO.7 | OFF | 0 | 7 || 8 | 0 | ALT5 | TxD1 | 15 | 198 |
| | | 0v | | | 9 || 10 | 0 | ALT5 | RxD1 | 16 | 199 |
| 0 | 0 | TxD2 | ALT5 | 0 | 11 || 12 | 0 | OUT | GPIO.1 | 1 | 6 |
| 2 | 2 | RTS2 | OFF | 0 | 13 || 14 | | | 0v | | |
| 3 | 3 | CTS2 | OFF | 0 | 15 || 16 | 0 | OFF | RTS1 | 4 | 200 |
| | | 3.3v | | | 17 || 18 | 0 | OFF | CTS1 | 5 | 201 |
| 64 | 12 | MOSI | ALT4 | 0 | 19 || 20 | | | 0v | | |
| 65 | 13 | MISO | ALT4 | 0 | 21 || 22 | 0 | ALT5 | RxD2 | 6 | 1 |
| 66 | 14 | SCLK | ALT4 | 0 | 23 || 24 | 1 | OUT | SPI0_CS | 10 | 67 |
| | | 0v | | | 25 || 26 | 0 | OFF | SPDIFOUT | 11 | 17 |
| 19 | 30 | SDA.1 | ALT4 | 0 | 27 || 28 | 0 | ALT4 | SCL.1 | 31 | 18 |
| 20 | 21 | PCM0DOUT | OFF | 0 | 29 || 30 | | | 0v | | |
| 21 | 22 | PCM0DIN | OFF | 0 | 31 || 32 | 0 | OFF | GPIO.26 | 26 | 7 |
| 8 | 23 | GPIO.23 | OFF | 0 | 33 || 34 | | | 0v | | |
| 16 | 24 | CTS3 | ALT4 | 0 | 35 || 36 | 0 | ALT4 | TxD3 | 27 | 13 |
| 9 | 25 | GPIO.25 | OFF | 0 | 37 || 38 | 0 | ALT4 | RTS3 | 28 | 15 |
| | | 0v | | | 39 || 40 | 0 | ALT4 | RxD3 | 29 | 14 |
+-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+
| H3 | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | H3 |
+-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+
+-----+----NanoPI M1 Debug UART---+----+
| H3 | wPi | Name | Mode | V | Ph |
+-----+-----+----------+------+---+----+
| | | 0v | | | 41 |
| | | 5v | | | 42 |
| 4 | 32 | TxD0 | ALT5 | 0 | 43 |
| 5 | 33 | RxD0 | ALT5 | 0 | 44 |
+-----+-----+----------+------+---+----+