AM335x IO configuration - Processors forum - Processors

0 peaves over 13 years ago

Please use the pin mux utility provided by Texas Instruments to determine which peripherals can be used simultaneously.

The pinmux Tool is available at http://ap-fpdsp-swapps.dal.design.ti.com/index.php/AM33x_Collaterals#Tools

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0 Michael Brooks over 13 years ago in reply to peaves

TI__Intellectual 1790 points

Sorry, the correct link for the pinmux utility is here: http://processors.wiki.ti.com/index.php/Pin_Mux_Utility_for_ARM_MPU_Processors

0 Tom Smith over 13 years ago in reply to Michael Brooks

Expert 2930 points

I have been using this program since day one and I have issues with selecting these IOs. Can TI tell me if the following IO selection is possible or not?

a: Two I2C ports (at least).
b: Once SPI with 2 Chip select or Two SPI with 2 chip select each(preferred)
c: Two Ethernet ports one port 10/100 and another one 10/100/1000.
d: One 4 bit SDIO.
e: One 8/16 bit Nand.
f: One 16 bit host interface.
g: Two USB interface.

-Tom-

0 Tom Smith over 13 years ago in reply to Tom Smith

Expert 2930 points

Fullscreen 0525.PinMuxDesignState_AM335x.dat.txt Download

General
Complete name                    : C:\Documents and Settings\a47359\My Documents\Accounts\Encore_Networks\AM335x\Pin_Mux\PinMuxDesignState_AM335x.dat
File size                        : 25.3 KiB

Here is my pin mux configuration from the tool. Could you verify??

0 PaulM over 13 years ago in reply to Tom Smith

TI__Mastermind 28055 points

Tom

I could not get your dat file to load.

I've attached one I generated. Take a look at it to see if it meets you needs. It includes:

2 x I2C
2 x SPI (SPI0 with 2xCS and SPI1 with 1xCS)
RGMII & RMII
MMC0 (full)
16-bit NAND
2 x USB

I'm not sure what the 16-bit host interface is.

Paul

PinMuxDesignState_AM335x-tom.dat

0 Ayus over 13 years ago in reply to PaulM

Intellectual 825 points

Hello Paul,

Even we are designing our application with AM335x.
Apart from the above peripherals we need LCD display and a FPGA to be connected.
looking into the PINMUX utility, I understood the 8-bit LCD could be connected,
could you please let me know what solution is there to connect a FPGA board.

Regards.

Ayus

0 Michele Da Rold over 13 years ago in reply to Ayus

Prodigy 30 points

Hello,

as reference it's possible to have the file .dat of pinmux utility of AM335x TEXAS EVM?

Thank you

Michele

0 PaulM over 13 years ago in reply to Ayus

TI__Mastermind 28055 points

Ayus

Typically FPGAs are connected to the device using the GPMC interface.

Can you expand further you question on the 8-bit display?

Paul

0 PaulM over 13 years ago in reply to Michele Da Rold

TI__Mastermind 28055 points

Michele

There are no pinmux datafiles for the EVM as it was designed before the AM335x parts were supported by the pinmux tool.

Paul

0 Ayus over 13 years ago in reply to PaulM

Intellectual 825 points

Hello Paul

Thank you!

Actually we will be using EtherCat and Ethernet also, 
in that case the pinmux would leave only fews LCD pins(only 8-bit LCD could be connected).
Apart from that we will be connecting NOR-Flash, USB, UART etc.

Regards.

0 Ayus over 13 years ago in reply to PaulM

Intellectual 825 points

Hello Paul

Thank you!

Actually we will be using EtherCat and Ethernet also, 
in that case the pinmux would leave only fews LCD pins(only 8-bit LCD could be connected).
Apart from that we will be connecting NOR-Flash, USB, UART..

Regards.

0 benny_ over 13 years ago in reply to Ayus

Prodigy 40 points

Hello Ayus,

How can you have Ethercat (both PRU_MII0 an 1used) and Ethernet (could be RMII) on the same part at the same time?