Re: The Coldfire development
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers.coldfire |
|---|---|
| Message-ID | <50798.59.182.27.170.1199518377.squirrel@www.accordelectronics.com> |
Dear Marc Thank you for the response and suggetions made , I will take care. regards Sanjay Morab > Sanjay: > > IMHO, if you want prompt answer on a public board, it might be best to > ask one question at a time and make it more specific than "Can you > send some code..." > > Anyway, your first question is easy. The 52235 has 32K of internal RAM > and you must have declared some large buffers that exceed this space. > You could either: > - reduce the buffers to their bare minimum > - allocate and free them dynamically > > Note that the linker also puts initialized data (.data, etc) before > the unitialized (.bss) so if you have large initialized tables or > character strings, they might also reduce your available .bss space. > Declaring them 'const' usually has them linked into a ROM segment that > is not copied to RAM (depends on the tools...) > > As for your other questions, have you looked at all the app notes and > sample code on Freescale's MCF5223x product page? I and others will be > glad to answer your specific questions. > > Hope this helps. Good luck. > > Marc > > On Jan 3, 2008 10:38 PM, Sanjay Morab <[email protected]> > wrote: >> >> >> >> 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 >> [email protected] Send a post to the list. >> [email protected] >> Join the list. [email protected] Join the list in digest >> mode. >> [email protected] Leave the list. > --- > [email protected] Send a post to the list. > [email protected] Join the list. > [email protected] Join the list in digest mode. > [email protected] Leave the list. > > --- [email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list.