CCS gives warning with Large-Data Memory Model

Chikku

Other Parts Discussed in Thread: MSP430F5529

Hi,

We are using MSP430F5529 with Large memory model in CCS,
With "Large-Data Memory Model" + rts430xl.lib settings,
whenever I try to compile msp430x54x_dma_02.c sample code,I get warnings with the below line.
"__data16_write_addr((unsigned short) &DMA0DA,(unsigned long) &UCA0TXBUF)"

Warnings like "conversion from pointer to smaller integer"
"integer conversion resulted in truncation"

Please let me know what could be the problem.

Regards,

over 15 years ago

0 AartiG over 15 years ago

TI__Guru**** 173310 points

Chikku,

In lage memory model, pointers are 20 bits instead of 16 bits, so the compiler is warning that the 20 bit pointer is being converted to smaller integer (16 bit short).

0 George Standish1 over 12 years ago in reply to AartiG

Prodigy 90 points

I am getting the same warnings with a similar chip for the large data model, does anyone know what the code should be changed to to correctly handle the 20 bit pointers?

0 Vladimir Jovic over 12 years ago in reply to George Standish1

Intellectual 380 points

George Standish1 said:

I am getting the same warnings with a similar chip for the large data model, does anyone know what the code should be changed to to correctly handle the 20 bit pointers?

Using 32-bit type should be enough. It should be changed to this :

"__data16_write_addr((unsigned long) &DMA0DA,(unsigned long) &UCA0TXBUF)"

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CCS gives warning with Large-Data Memory Model