AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/GPIOs
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| 2021/07/19 | First EVK release | ||
Contents
GPIOs interfaceEdit
i.MX6UL can handle external pins in many different ways and most of them can be configured as GPIOs. When a pin is set as a GPIO, it is possible to read its value, change its direction or change output value directly from the shell.
DescriptionEdit
The GPIOs interface available on the Evaluation Kit at the connector JP1. JP1 is a 2x6x2.54mm header pinstrip connector.
SignalsEdit
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1 | - | 3.3V | - | - |
| 2 | - | DGND | Ground | - |
| 3 | J1.93 | GPIO_IN_0 | GPIO2_IO09 | |
| 4 | J1.107 | GPIO_OUT_0 | GPIO2_IO12 | |
| 5 | J1.95 | GPIO_IN_1 | GPIO2_IO08 | |
| 6 | J1.38 | GPIO_OUT_1 | GPIO1_IO00 | |
| 7 | J1.97 | GPIO_IN_2 | GPIO2_IO11 | |
| 8 | J1.78 | GPIO_OUT_2 | GPIO4_IO24 | |
| 9 | J1.99 | GPIO_IN_3 | GPIO2_IO10 | |
| 10 | J1.80 | GPIO_OUT_3 | GPIO4_IO22 | |
| 11 | J1.105 | GPIO_IN_4 | GPIO2_IO13 | |
| 12 | J1.179 | GPIO_OUT_4 | GPIO1_IO23 |
Device mappingEdit
GPIOs can be used directly on Linux kernel device driver or can be configured on the device tree.
Device usageEdit
See the GPIOs page on the DESK-MX6UL-L Software Manual.