Looking at the Reference Manual (Rev A5.6), on table 12, pins 17 and 18 on
P9 are used by I2C1_SCL and I2C1_SDA and then on table 17, it says that P9
17 and 18 are used by EEPROM.
Is that the reason I can't use them?
Is there another way to use all UARTs on P8 and P9?
Thanks
Em segunda-feira, 16 de dezembro de 2013 14h05min52s UTC-2, Renato Riolino
escreveu:
>
> Hi,
>
> I have an application that needs 5 UARTs to work. We are building a cape
> board to plug on P8 and P9 to expose all 6 uarts from the CPU.
>
> I've made a DT file for all uarts. All are working now except for UART0
> that is still only accessable via the 6 pin ttl debug pins.
>
> Specific for UART0, the PIN settings on my DT file is:
>
> fragment@0 {
> target = <&am33xx_pinmux>;
> __overlay__ {
> bb_uart0_pins: pinmux_bb_uart0_pins {
> pinctrl-single,pins = <
> 0x15C 0x04 /* P9.17
> uart0_txd.uart0_txd OUTPUT */
> 0x158 0x24 /* P9.18
> uart0_rxd.uart0_rxd INPUT */
> >;
> };
> };
> };
>
> But still only on debug header I can get a signal. Any ideas of what I am
> doing wrong?
>
> Thanks.
>
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