Flash Programming using CCS

Bindu Tanguturi

Hi,

My requirement : I need to load the flash memory with the 127K of configuration data with starting address as 0x00080000.

Is it possible to program flash (data storing) with CCS program ?

My idea is to create a C struture which reflects the configuration data structure. Load this struture with the required configuration data. Copy this loaded struture to required flash location. The CCS created hex file for this program will loaded to target using nowFlash or CCS. After running this program, the flash should be loaded withn required data. Then erase the program memory only. Then load the program which actually uses this configuration table or data. Is that my approach correct ?

I started doing as above, i am able to point the structure to required memory location, but the flash is not loaded with required data in debugging. This is beacuse flash is readable only.

Let me know how to store the data to Flash. Suggestion are weleocme.

I have read about F035 Flash API library in the TMS570 TRM. Do i need to use this for writing to flash ? IF so please provide me more information on usage of this library in the application program.

over 14 years ago

0 Bindu Tanguturi over 14 years ago

Expert 1180 points

Can anyone respond to this post.

Thanks in advance.

0 Sunil Oak over 14 years ago in reply to Bindu Tanguturi

TI__Mastermind 49120 points

Hi Bindu,

Yes, you do need to use the functions defined in the F035 flash API to be able to program and erase the flash. The functions are all described in the F035 Flash API User's guide that will get installed along with the API. Please download the documentation and/or the API from: http://www.ti.com/tool/f035flashapi

Regards, Sunil

0 Bindu Tanguturi over 14 years ago in reply to Sunil Oak

Expert 1180 points

Hi Sunil,

Is there any other way to write to flash ? What is your opinion on my approach discussed in the previous post.

0 Brian Fortman over 14 years ago in reply to Bindu Tanguturi

TI__Expert 7650 points

Hello Bindu,

In a runtime environment, the only way to program/erase the flash is by means of using the Flash API. This is because the Flash API utilizes known good techniques that will allow us to meet the datasheet specs. In a development environment, supported IDEs like TI's CCS, TI's nowFlash standalone tool and Hercules programming third parties (www.ti.com/hercules) can be used to program the flash.

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Flash Programming using CCS