[riot-users] RIOT and UDOO: UART drivers for internal shared bus

Francesco Ermini francescoermini8 at gmail.com
Thu Oct 30 16:31:35 CET 2014

Hi Hauke,

Thank you so much,you did a great job on RIOT,I hope that we will soon
contribute to the project!

yours sincerely, Francesco

2014-10-30 12:58 GMT+01:00 Hauke Petersen <hauke.petersen at fu-berlin.de>:

>  Hi Francesco,
> the UART driver for the UDOO board is almost ready, I actually hope it
> will be merged today. The driver then enables you to access the SAM's UART
> in a efficient way. For documentation best have a look at the doxygen for
> `RIOT/drivers/include/periph/uart.h`.
> Now for communicating between both MCUs, you would need to look into the
> UDOO's documentation, namely the UDOO Starting Manual chapter 3: 'internal
> connections'. There you can see, that the SAM is connected via it's primary
> URXD and UTXD with the iMX. This UART is mapped in RIOT to UART_0. So for
> sending and receiving on the SAM side, you just need to use RIOT's UART
> interface with UART_0. On the iMX side, I can't really help you, just look
> it up in UDOO's documentation.
> I hope this is of any help to you, if you need additional information let
> me know!
> Cheers,
> Hauke
> On 29.10.2014 21:26, Francesco Ermini wrote:
> We have RIOT runs on UDOO board.
> Our aims is to establish a communication trough the internal shared bus
> between the two processors, the imx6 and the sam3x using UART protocol,as
> describe in the UDOO starting manual ( par 3.2.2 ).
> I saw  @Hauke Petersen did the UART drivers for UDOO,but I couldn't find
> any reference for the internal serial UART that allows the communication
> with the iMX6.
> Is this already included? or shell we have to define a new UART port?
>  Thanks, Francesco
>  Francesco Ermini
> electronic engineering Student
> at UNIFI
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Francesco Ermini
Via Abebe Bikila, 8 50012 (FI)
cell. 3338710609
tell. 055642820
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