CCS/CC1310: Maintaining Flash Contents

Saycoda

Expert 1580 points

Part Number: CC1310

Tool/software: Code Composer Studio

I'm working with the CC1310xxx and using the EVB and CCS7 with rtos21 for my development.

I have a few questions:

1) Within my code, how do I specify an absolute address in flash?

2) Does the tech ref manual describe the various memory sections. If not, where can I find that info?

3) When debugging, how can I prevent the loading of the program not to destroy specific areas of flash?

Thanks

over 8 years ago

0 PrashanthS over 8 years ago

TI__Expert 8765 points

1. To specify absolute address, you can create a pointer type variable and assign the address value to it. If you want a certain section to reside in a certian memory location, you can use pragmas to create a section and place it at a desired memory location using the linker command file. More information on linker command files can be found here processors.wiki.ti.com/.../Linker_Command_File_Primer

2. Yes, the TRM has this information. Please refer to section 3.2.8 Cortex-M3 Memory Map

3. You can use the NO_LOAD directive in your linker command file. Please refer to this for more information processors.wiki.ti.com/.../Linker_Special_Section_Types

Regards,
Prashanth

0 Saycoda over 8 years ago in reply to PrashanthS

Expert 1580 points

Can someone provide a direct example of how to maintain the Secondary MAC address using NO_LOAD? The few things that I tried referencing the above links did not work.

secmacAddr = *((uint64_t *)(CCFG_BASE + CCFG_O_IEEE_MAC_0)) & 0xFFFFFFFFFFFFFFFF;

Sub-1 GHz

Sub-1 GHz forum

CCS/CC1310: Maintaining Flash Contents