Difference between revisions of "AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/GPIOs"
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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. | 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. | ||
Latest revision as of 10:30, 9 January 2024
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| History | |||
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| 2021/07/19 | First EVK release | ||
GPIOs interface[edit | edit source]
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.
Description[edit | edit source]
The GPIOs interface available on the Evaluation Kit at the connector JP1. JP1 is a 2x6x2.54mm header pinstrip connector.
Signals[edit | edit source]
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 mapping[edit | edit source]
GPIOs can be used directly on Linux kernel device driver or can be configured on the device tree.
Device usage[edit | edit source]
See the GPIOs page on the DESK-MX6UL-L Software Manual.
