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Pointer allocation problem
- From: Kanwal Preet Singh CHANANA <kanwalpreet dot singh at st dot com>
- To: "'kanwalpreet singh'" <kanwalpreet dot singh at st dot com>
- Cc: <gcc-help at gcc dot gnu dot org>, <crossgcc at sources dot redhat dot com>
- Date: Fri, 1 Sep 2006 09:38:13 +0530
- Subject: Pointer allocation problem
Hi all,
I am porting my project from ADS to GCC_ARM v4.0.3. I have been able to
compile & Link my source files with GCC-ARM. The image (running in Flash)
crashes on target. The reason for crash is wrong pointer allocation.
I have used a pointer to a structure as shown below:
typedef volatile struct UARTInfoTag
{
void (*rxInt_p) (void);
void (*txComplete_p) (void);
tUartLineStatusCallbackFunc lineStatusInt_p;
tBool NewRxData;
tBool IsTransmitting;
} UARTInfo;
#define NUMBER_OF_UARTS 2
UARTInfo UARTCallBack[NUMBER_OF_UARTS];
UARTInfo *pUARTInfo = &UARTCallBack[0];
UARTCallBack is located in RAM with &UARTCallBack[0]=0x000033C8, but
pUARTInfo contains the value 0x4B1D1BCA & pUARTInfo is located in RAM at
address 0x00001FCA.
The address 0x4B1D1BCA is out of my memory range which leads to image crash
on target.
Also the pUARTInfo contains value =0x000033C8 when I use ADS for image
build.
Can anybody suggest me how to fix this problem?
Regards,
Kanwal