ColdFire/68K Microcontrollers and ProcessorsのトピックRe: PUCPAR on MCF52221

PUCPAR on MCF52221

LPs1978 — Wed, 18 Mar 2009 15:11:48 GMT

Hi all,

I'm trying to set up uart2 on a MCF52221, but in MCF52221_GPIO.h file I cannot find any macro for Port UC. There are macros for PUA and PUB, but nothing referred to PUC.

There is something wrong on thereference manual or is only a problem of .h file?

Thanks

Re: PUCPAR on MCF52221

MrBean — Wed, 18 Mar 2009 18:16:30 GMT

MCF52223 ColdFire® Integrated Microcontroller Reference Manual, Rev. 3

12.6.5.2 Quad Function Pin Assignment Registers

Page 12-12

The info there is correct.

(Use the "Find" (Ctrl+F) function of Adobe Reader!)

The PORTUC pins are only available on a 100 pin package.

The MCF52221 is not available in this package according to the Ref Manual.

The website then again says it is available in 100 pins packages.

Message Edited by MrBean on 2009-03-18 12:23 12:23 PM

Re: PUCPAR on MCF52221

LPs1978 — Wed, 18 Mar 2009 19:53:46 GMT

Thank you very much. This means that there isn't UART2 on the demo board CPU.

Re: PUCPAR on MCF52221

mjbcswitzerland — Thu, 19 Mar 2009 00:02:50 GMT

On 80 pin devices UART2 is still available as alternative peripheral on port AS.

http://www.utasker.com/forum/index.php?topic=256.0

regards

Mark

www.uTasker.com

- OS, TCP/IP stack, USB, device drivers and simulator for M5221X, M5222X, M5223X, M5225X. One package does them all - "Embedding it better..."

Re: PUCPAR on MCF52221

MrBean — Thu, 19 Mar 2009 18:18:12 GMT

Indeed, and those UART2 pins on PORTAS pins are available on the I/O port connector J1.

No level RS232 converter there. Use an external one if needed.

If UART2 is used, you will have to give up on CTS1/RTS1 or move those to PORTQS, giving up on QSPI.