Tool/software: Linux
Hello,
I am using GPMC with several TI's chips and different OS.
As, I understand GPMC configuration is basically configuration of timing on the bus.
We encounter a project in which we use the exact same configuration GPMC (sam values in configuration register config1-config7), with 2 different OS (oprating system),
yet we had to insert delay in software read or write, otherwise the read/write failed or even totally hang.
for example in write:
In one project it happened in linux/vxworks .
And in another project with , although I am using same configuration in u-boot and uc/os, I still need to insert delays in the read/write.
for (i = 0; i < in_length; i++)
{
OUT_REGS(NAND_DATA_LOCATION, src_buffer[i]);
delay(10); //<<------- adding delay
}
Is there any explanations for this ?
Is it because of using different compilers ?
Is it some other configuration difference (clock) ?
Thank you.
Ran
