xdata storage not working for cc1110

Jack Dev

Please help me with the problem of storing and retrieving in the xdata space .I am using Keil IDE and targeting cc1110 chip I Am doing adc storage in xdata space and I am never able to retrieve the stored data some other value is obtained.Any body saw anything like that i include the code to reproduce the issue..I use this for adc to pwm conversion.

declaration : INT8U xdata RxBuff[100];

Usage

RxBuff[0]=10;
if(RxBuff[0]==10)
{

//never works

}
else{
//always works
}

what is actually going on..

over 10 years ago

0 Peder over 10 years ago

TI__Expert 6995 points

Hi Jack,
That looks very strange. If you don't force placement in "xdata", does it work then?

I suspect it would still be placed in XDATA given that the DATA space is only 128 KB.

Peder

0 M over 10 years ago

TI__Genius 13620 points

How do you compile the code? What memory model have you selected? Have you checked where the RxBuff ends up in the map file?

0 Jack Dev over 10 years ago in reply to M

Intellectual 595 points

Actually i compiled with keil version 5

0 Jack Dev over 10 years ago in reply to Jack Dev

Intellectual 595 points

I tried changed my memory model in the keil setup i got it ok .But still not able to use the entire potential of xdata storage.Is there any other setting I must do in order to correct them.
INT8U xdata test[40],Adc_girl,Pwm_count;
xdata DMA_DESC dmaConfigTX;
xdata DMA_DESC dmaConfigRX;
xdata DMA_DESC dmaConfigADC;

INT8U xdata buffer[320],RxBuff[320];
these are the variables been used.

0 M over 10 years ago in reply to Jack Dev

TI__Genius 13620 points

What do you mean by "not able to use the entire potential of xdata storage"? Can you clarify? Don't you get access to all the RAM on the device? What does your linker file look like? And the resulting map file when compiling?

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xdata storage not working for cc1110