loading an ouput file in RAM

Hi Deeptanshu,

For SCI (RS232) boot you will use GPIO18 & GPIO19

The following forum post (and the utilities listed inside) may be useful if you are looking to reprogram the device via RS232:
http://e2e.ti.com/support/microcontrollers/tms320c2000_32-bit_real-time_mcus/f/171/p/62370/228260.aspx

Regards,

Gautam

Hi!

You can try "knight's move": 

1 Boot ROM (Flash) via SCI (3833.tms320f28027-0200.pdf page 23-24).

2 Copying Compiler Sections From Flash to RAM (4555.Copying Compiler Sections From Flash to RAM.pdf).

Regards,

Igor

Hi igor,

I can't use any other utility to program the device. I have to create an application in which user selects the .out file(or any other file needed) and my application loads the program into the RAM. I can't use ccs for this. So, my ques is how do I load a .out file when only thing I can do is send the data of the .out file to the sci port using a C# API.

Thank you.

Hi gautam,

I can't use SDFlash utility. I need to program my own application to load the .out file in RAM.

Thank you.

Hi!

I didn't mean the use of CCS for loading. You apply CCS for building of your out-file only. But your project should include "copy_sections routine" (look at p.3.1 of my second reference). You load your out-file in flash by your C#application via SCI and you restart device. Further "copy_section routin" will load from Flash to RAM that you need.

Regards,

Igor 

Hi Deep,

I agree with Igor, simply follow his instructions.

Regards,

Gautam

Hi igor,

In f28027, the SCI bootloader mode copies the data into the RAM, not flash. I have the .out file of the project and the .map file. Now, the main problem is to load the data from SCI into the RAM. See, the SCI mode requires the following format :

 I send the number of words to be send(say n), then I send the loading address, then I send n words, and the bootloader copies the data I'd send to the loading address I  had given.

Now, how do I send the data of the .out file. I mean how do I know which bytes of the .out file contain code and what would be the loading address of those bytes inside the RAM, which bytes contain metadata etc. The C# application can only read bytes from the .out file and send it to a serial port.

Thank you.