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→UART design rules
* IGEP COM AQUILA uses UART0 as a Kernel Debug Peripheral. This UART is a inexpensive method to detect and repair system issues. It is recommendable use another UART instead of UART0 to preserve this functionality.
* UART5_RTS and UART5_CTS are shared with MMC0 (uSD card reader), don't use both peripherals at the same time. Find more information at [{{#lst:Template:Links|IGEP_COM_AQUILA_ISEE_Hardware}} IGEP COM AQUILA Hardware Reference Manual] section 6.1
*IGEP COM AQUILA uses 3V3 voltage levels for UART buses. In some cases, voltage translators like TXS0102 should be necessary to adapt voltage levels between ICs.
* Don't use UART3_TX and UART3_RX in both SODIMM pins
