AW: The Coldfire development

Hi Sanjay

 
>>1. When we link all files (tested individually on EVA board) i get
linker error

Program RAM requirements are presently too large for the chip’s internal
SRAM. You will have to analyse where the RAM is being used and optimise
where possible
 
>>3. I am unable to understand how to use RTC on MCF52235 and how the
RTC is retained on poer failure.
If you can help us with some sample codes it will be great
 

See http://www.utasker.com/forum/index.php?topic=35.0 
This is a general discussion of this module with examples of how it can
be useful. The M52235 doesn’t support battery backup of this module and
it is also not really designed for traditional RTC functions. It may be
best to use an external battery backed RTC via I2C.

 
>>4. I need to use I2C port on interrput. Can you send some codes for
I2c port
>>2. In polled mode UART is workinf fine but in interrupt mode there is
some problem. Can you please help us with some UART sample
codes interrupt.

See the uTasker project since it includes all code for the parts you are
looking for (including DMA operation and flow control support) – it is
also documented on the web site and its forum.
www.uTasker.com / http://www.uTasker.com/forum/ 

Regards

Mark 



 
Mark Butcher Bsc (Hons) MPhil MIEE

M.J.Butcher Consulting                
Obere Bahnhofstr. 13,  CH-5507 Mellingen,
Switzerland         www.mjbc.ch / www.uTasker.com
056 491 48 10 / 079 402 26 37 / Skype: M_J_Butcher
 
 

-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]]
Im Auftrag von Sanjay Morab
Gesendet: Freitag, 4. Januar 2008 04:39
An: [email protected]
Betreff: [ColdFire] The Coldfire development

Dear All
 
We had started the development on Coldfire MCF52235. We had sucessfully
implemented all other drivers and tested independently. We are facing
some problem in following 
 
1. When we link all files (tested individually on EVA board) i get
linker error
 
Link Error   : Overflow in segment: user from section: .bss
Segment reserved size is: 0x00007b00 -- Overflow of: 0x00000124
 
Link failed. 
 
2. In polled mode UART is workinf fine but in interrupt mode there is
some problem. Can you please help us with some UART sample
codes interrupt.
 
3. I am unable to understand how to use RTC on MCF52235 and how the RTC
is retained on poer failure.
If you can help us with some sample codes it will be great
 
4. I need to use I2C port on interrput. Can you send some codes for I2c
port
 
regards
Sanjay Morab
 

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