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More information about [http://en.wikipedia.org/wiki/UART UART].'''<br>'''
There are three modes to configure UART2 in J990: via user space (fast mode), editing kernel source and compile it (slow mode) or editing only igep.ini (faster mode).
= Feedback and Contributing =
root@localhost:/sys/kernel/debug/omap_mux#
</pre>
Mode will be 1 (uart mode) = Faster Mode = Faster mode: configure kernel via IGEP Xloader. Configuration will be permanent. '''NOTE: Only configures UART2_TX(6) and UART2_RX(8). You can not use UART2_CTS(4) AND UART2_RTS(10). For example you can use RS232 but not RS485 periipheral.'''
= Slow Mode =
Slow mode: configure kernel source.<span lang="en" classid="short_textresult_box" idclass="result_boxshort_text"><span class="hps">Configuration will be</span> <span class="hps">permanent.</span></span>
=== Configure IGEP ===
Make sure that IGEPv2 Expansion is disabled, go to igep.ini file:
<pre>;buddy=igep0022 </pre>
'''Under construction'''
= Test UART2 in J990<br> =