MCF52259 Demo Board UART.

FWFan — Sat, 08 Aug 2009 05:26:02 GMT

Hi All,

I am trying to use the mcf52259 uart peripheral. I used the cf initialize bean to initialize my settings. But no matter what I send, I always see the greek letter alpha. I am including my codes, hopefully someone could point out some tips.

Thank you,

FWFan

main.c

MCUinit.c

Message Edited by t.dowe on 2009-09-02 02:07 PM

Re: MCF52259 Demo Board UART.

mjbcswitzerland — Sat, 08 Aug 2009 19:45:23 GMT

I took a quick look but didn't see any configuration of the UART pins for peripheral use (PUAPAR).

Also I didn't find any configuration of the clock source (UCSR), nor the Baud rate (UBG1 and UBG2).

The mode is being set correctly to no parity without stop bit but I didn't see the transmitter being enabled anywhere either prior to, or during attempted transmission.

Note that you may like to look into the uTasker project for the Kirin3 http://www.utasker.com/kirin3.html which contains all that you ned for the UARTs (see UART guide:

http://www.utasker.com/docs/uTasker/uTaskerUART.PDF) with interrupt and DMA driven modes as well as a simulator to run a virtual Kirin3 [UARTs mapped to COM ports] on your PC.

I noticed that you are already using some ADC code - the uTasker project also has full support for this (including threshold triggering interrupt and full simulation capabilities) - as for most peripherals; eg. http://www.utasker.com/forum/index.php?topic=280.0

Regards

Mark

www.uTasker.com
- OS, TCP/IP stack, USB, device drivers and simulator for M521X, M521XX, M5221X, M5222X, M5223X, M5225X. One package does them all - "Embedding it better..."

Re: MCF52259 Demo Board UART.

FWFan — Sat, 08 Aug 2009 21:36:40 GMT

Wow Mark.

Thank you very much for your help.

I will get on it right away.

Sincerely,

FWFan

topic Re: MCF52259 Demo Board UART. in ColdFire/68K Microcontrollers and Processors

MCF52259 Demo Board UART.

Re: MCF52259 Demo Board UART.

Re: MCF52259 Demo Board UART.