AM263P4: How can I put all my boot loader source code into RAM and run them in RAM during erasing Flash

Hi Rick,

The bootloader code runs from RAM only. Once the SBL has begun execution you can erase the flash as SBL runs from RAM, But once you erase the flash it will erase SBLalso.

The boot loader that I said is not TI SBL is the boot loader of mine. I needs to use my boot loader to erase my application. But when my boot loader is erasing my application, the Flash is busy and boot loader still need to get source code from Flash to run. So I want to put all my boot loader into RAM and then to erasing my application. I want to use the following RAT. But how can I know I am using RAT not others?

Rick Zhang said:

The boot loader that I said is not TI SBL is the boot loader of mine. I needs to use my boot loader to erase my application. But when my boot loader is erasing my application, the Flash is busy and boot loader still need to get source code from Flash to run.

Hi Rick, Do you have XIP from flash in your bootloader code? If no then what i said earlier would still hold true? Yes you can use RAT but what I am not able to understand is why is it you need to use RAT in this case?

How could I check my boot loader code has XIP from flash? I need to put all my boot loader into RAM and run the boot loader in RAM. It will be faster and it can erase flash when boot loader is running.

Could you help check my .cmd file and .syscfg file to make sure my boot loader code has XIP from flash?

It seems that I cannot put it here. It seems that it has some problem. Can send it to you by your email address? Thank you!