Problem in initialising DDR2 registers in freescale K70 twr

shanthipk — Sat, 30 Nov 2013 04:10:24 GMT

Hi all,

The query is as follows.

We are using K70 Twr and i need to test the DDR2 SDRAM memory connected to it. We are not using RTOS. The task is to test the DDR2 memory. I had used twr_ddr2_script_init() from the example project from the driver file sdram.c and it works in the example project and i am able to read and write to the memory.

Now when i try to read or write to the memory in our customized project ,we are not able to initialise the registers, it stops in CR_00 itself, also the junk value in the memory is overwritten with a value 0x23000042. Tried writing into write back (from 0x70000000) and write through(from 0x80000000) memory also. Please help with a solution.

I am attaching our project setting files and also the main which we are using to check our functionalities. It is a draft copy. Please help us with this.

Original Attachment has been moved to: main.c.zip

Original Attachment has been moved to: freescale.zip

Kinetis MicrocontrollersのトピックProblem in initialising DDR2 registers in freescale K70 twr

Problem in initialising DDR2 registers in freescale K70 twr