Hi I am using uvision to develop code for LPC1768. my code is not small but I am sure I have lots of unused SRAM and I have assigned enough heap and stack
But I have a problem. Some of my variables get values other than what they should have. For example a variable that I set it 1 in timer interrupt (and define it volatile when declaring it), is having 0 value when is referred to in code, etc
When these problems happen, I define the variable in a specific address, like this
unsigned char Flash_write_values[512] __attribute__((at(RAM_BaseAddress + 0x5000))); unsigned char Flash_Data[512] __attribute__((at(RAM_BaseAddress + 0x5200))); volatile unsigned char SMS_QueueActive __attribute__((at(RAM_BaseAddress + 0x5A04)));
Now that my code is getting bigger, this problem is occurring more frequently. Maybe I should define all my variables in specific addresses. What is your opinion?
I started studying linker manuals to learn how to create scatter files, but it seems the manuals are too large and not enough simple to work/start with
How do you suggest me to proceed? Thanks in advance