topic Re: mcf5329evb -> turn on leds in ColdFire/68K Microcontrollers and Processors

mcf5329evb -> turn on leds

VeronicaFNX — Mon, 07 May 2007 17:20:19 GMT

Hello,

i have bougth an m5329evb. I want to turn on "led 0" and "led 1" (debug leds) but i don't know like doing it.

I have tried to do

MCF_GPIO_DSCR_DEBUG = MCF_GPIO_DSCR_DEBUG_DEBUG_DSE(0xff);

but it isn't the solution. Somebody can help me?

Thanks

Re: mcf5329evb -> turn on leds

SimonMarsden_de — Tue, 08 May 2007 16:45:11 GMT

Hi On the M5329EVB evaluation board, the LEDs are connected to the TIMER port. To flash them, you need to carry out two steps:

(a) Configure the TIMER port for General Purpose output:

    /* Pin assignments for port TIMER            Pins are all GPIO outputs     */    MCF_GPIO_PDDR_TIMER = MCF_GPIO_PDDR_TIMER_PDDR_TIMER3 |                          MCF_GPIO_PDDR_TIMER_PDDR_TIMER2 |                          MCF_GPIO_PDDR_TIMER_PDDR_TIMER1 |                          MCF_GPIO_PDDR_TIMER_PDDR_TIMER0;    MCF_GPIO_PAR_TIMER = 0;

(b) Toggle bits in the PODR_TIMER register to turn the LEDs on and off, e.g:

   /* Sample code: Loop to flash LED */    while (1) {        MCF_GPIO_PODR_TIMER ^= MCF_GPIO_PODR_TIMER_PODR_TIMER3;        for (i = 0; i < 500000; i++)            asm ("nop");    }

Hope this helps.

Simon

Re: mcf5329evb -> turn on leds

VeronicaFNX — Wed, 09 May 2007 14:02:16 GMT

Hello,

it doesn't work. I have unloaded the files "schematic mcf5329 card engine" and i can see in page 7 (LOGIC) that leds goes through latch U7.

I think that I must do something with latch. What do you think?

Thank you very much

Veronica

Re: mcf5329evb -> turn on leds

SimonMarsden_de — Thu, 10 May 2007 14:55:47 GMT

That's strange - it works for me out of the box. Perhaps we don't have the same EVB? Mine is called:

Zoom ColdFire M5329EVB Development Kit

Re: mcf5329evb -> turn on leds

VeronicaFNX — Mon, 14 May 2007 16:33:33 GMT

You are right. My EVB is MCF5329.

The program works well. Thanks

Veronica

Re: mcf5329evb -> turn on leds

VeronicaFNX — Mon, 14 May 2007 16:35:48 GMT

I feel it. I have been mistaken.

It is mcf5373L