Difference between revisions of "Activate i.MX internal UARTs"
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m (→i.MXL (APF9328)) |
m (→i.MX27 (APF27)) |
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==i.MX27 (APF27)== | ==i.MX27 (APF27)== | ||
| − | On i.MX27 UART controllers pins are multiplexed with other peripheral controllers. So configuration is a little more difficult. | + | * On i.MX27 UART controllers pins are multiplexed with other peripheral controllers. So configuration is a little more difficult. |
<pre class="host"> | <pre class="host"> | ||
| − | $ make | + | $ make linux-menuconfig |
</pre> | </pre> | ||
<pre class="config"> | <pre class="config"> | ||
| Line 20: | Line 20: | ||
[ ] UART6 | [ ] UART6 | ||
</pre> | </pre> | ||
| − | Some UARTs won't be available | + | Some UARTs will be preselected or won't be available, depending on the other devices configured or the baseboard used. (For example UART4 is not available on APF27Dev; indeed pins are used for USB1). |
| + | <pre class="host"> | ||
| + | $ make | ||
| + | </pre> | ||
| + | * Reflash your Linux kernel | ||
==Going further== | ==Going further== | ||
Latest revision as of 17:09, 4 September 2013
i.MXL (APF9328)
Nothing special to do, the 2 UARTS are activated by default.
i.MX27 (APF27)
- On i.MX27 UART controllers pins are multiplexed with other peripheral controllers. So configuration is a little more difficult.
$ make linux-menuconfig
Device Drivers --->
Character devices --->
Serial drivers --->
[*] IMX serial port support
[*] Console on IMX serial port
-*- UART1
[ ] UART2
-*- UART3
[ ] UART4
[ ] UART5
[ ] UART6
Some UARTs will be preselected or won't be available, depending on the other devices configured or the baseboard used. (For example UART4 is not available on APF27Dev; indeed pins are used for USB1).
$ make
- Reflash your Linux kernel
Going further
Now you have activated your serial port, you can use them: Serial ports usage on Linux
