Howto set DIO on MPC-5200 Lite

Hi,

how can I set the DIO ports from a MPC-5200 Lite?


Best regards,
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

Matthias Fechner wrote:

Hi,

how can I set the DIO ports from a MPC-5200 Lite?


Best regards,
Matthias

  

What's the DIO port ?

    Sylvain

Matthias Fechner wrote on Mon, 19 Mar 2007 08:31:34

Hi,

how can I set the DIO ports from a MPC-5200 Lite?


Best regards,
Matthias

Could you mean "GIO" ports?


Pedro L.

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Hi Pedro and Sylvain,

Pedro Luis D. L. wrote:

Could you mean "GIO" ports?

I mean the digital IO ports ok or general IO ports.
What I want is to set a signal to high or low which should control a relais.

I thought I can use the pin Dxx for that on the board.

Best regards,
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

Matthias Fechner wrote on Mon, 19 Mar 2007 10:48:19

Hi Pedro and Sylvain,

Pedro Luis D. L. wrote:

quoted

Could you mean "GIO" ports?

I mean the digital IO ports ok or general IO ports.
What I want is to set a signal to high or low which should control a 
relais.

I thought I can use the pin Dxx for that on the board.

Best regards,
Matthias

The digital IO ports in the MPC5200 Lite are called GPIO ports. You can use 
some pins in the PSC ports and some Timers as General Purpose IO ports.
You need to define the behaviour of these ports in the Port Config register 
or the Timer registers.


Best,
Pedro L.

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Matthias Fechner wrote:

Hi Pedro and Sylvain,

Pedro Luis D. L. wrote:
  

quoted

Could you mean "GIO" ports?
    

I mean the digital IO ports ok or general IO ports.
What I want is to set a signal to high or low which should control a relais.

I thought I can use the pin Dxx for that on the board.

Best regards,
Matthias
  

Well, just lookup the schematics to which port the pin you want to
control is connected, then look in the datasheet how to control the
GPIO. You must make sure the port you want to control is in gpio mode in
port_config register, then setup it as output and drive a value onto it
... There is nothing currently in place to do that easily from userspace ...

    Sylvain