On 02/11/2014 12:57 PM, Wolfgang Denk wrote:
Dear York,
In message 52FA8205.1090206@freescale.com you wrote:
So ideally keep this data on the stack, and if there is no way around it, in the global data structure.
Agreed. I tried to use global data at first, which upsets Tom. Tom suggested to use linker script. I guess he was under the impression I was using SPL. Let me try harder to use stack.
well, to do something with the linker script, you need some memory somewhere you can use for this purpose. Your example showed SRAM. so if you do have SRAM on that board - why do you not use it for stack and GD? Where is your steck and GD right now?
The initial stack and GD are in SRAM. Of course they are moved to SDRAM after initialization. I intend to spare SRAM for other purpose after relocation. I am scratching my head trying to figure out how to put this variable "srdata" in mxc_i2c.c into stack. Please give me some guidance if you have the idea on top of your head.
York