IAR configuration

adrazer1980 · ‎2015-11-27

Posted on November 27, 2015 at 22:38

I am trying to perform a memory read operation in a STM32L152 discovery board using the following code:

#include ''stm32l1xx.h''

#include ''stdio.h''

uint16_t ts_cal1;

uint32_t address1=0x1FF800FB;

uint32_t address2=0x1FF800FE;

ts_cal1 = *((uint16_t*)address1);

I am getting several errors in the fourth line

Error[Pe077]: this declaration has no storage class or type specifier

Error[Pe147]: declaration is incompatible with ''uint16_t ts_cal1'' (declared at line 4)

Error[Pe028]: expression must have a constant value

I am not sure whether this is an IAR configuration error or not. Any suggestions will be appreciated.

Tesla DeLorean · ‎2015-11-27

Posted on November 28, 2015 at 00:15

Probably objecting to the ODD address?

And that the code is rather formless, don't think you can do assignments like that.

#include ''stm32l1xx.h''

#include ''stdio.h''

uint32_t address1=0x1FF800FA;

uint16_t ts_cal1 = *((uint16_t*)address1);

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megahercas6 · ‎2015-11-28

Posted on November 28, 2015 at 09:38

void SRAM_ReadBuffer(uint16_t* pBuffer, uint32_t uwReadAddress, uint32_t uwBufferSize)
{
__IO uint32_t write_pointer = (uint32_t)uwReadAddress;
for (; uwBufferSize != 0; uwBufferSize--)
{
/* Read a half-word from the memory */
*pBuffer++ = *(__IO uint16_t*) (SRAM_BANK_ADDR + write_pointer);
/* Increment the address*/
write_pointer += 2;
}

This is example how to read from memory space, where that space represents external SRAM