CC1310: TIRTOS flash usage

Jakob Justesen

Part Number: CC1310

I have compiled the rfPacketRx tirtos project example, but notice that this simple project uses 27Kbyte of flash memory.

On our custom board, we use the 32K version of the CC1310, so this is almost all the flash, leaving no almost no space for our application.

Is there a way to reduce the flash usage, I have tried using the -O3 optimization flag, but that did almost nothing.

0 Marie H over 2 years ago

Hi Jakob,

There are some adjustments you can make but you might need to consider using a larger flash variant.

If you can remove a driver (e.g. PIN or GPIO) it would save some flash.

You can also go through the board file (CC1310_LAUNCHXL.c) and remove definitions that are not being used (e.g. UART).

Cheers,

Marie H

0 Jakob Justesen over 2 years ago in reply to Marie H

Hi Marie,
Thank you.
I can see in the map file that it is including .text.NOROM_xxx, can I link to functions in ROM ?

0 Marie H over 2 years ago in reply to Jakob Justesen

Hi Jakob,

Per default the project should link components such as TI RTOS and TI 15.4-Stack in ROM.

Functions that are patch since the device release are stored in flash.

Cheers,

Marie

0 Jakob Justesen over 2 years ago in reply to Marie H

Hi Marie,
Ok, but how can I check that this is indeed happening ?

BR, Jakob

0 Marie H over 2 years ago in reply to Jakob Justesen

Hi Jakob,

You can check each symbol in the map file. Addresses starting with 0x00 are in flash, addresses starting with 0x10 are in ROM.

Cheers,

Marie H

Sub-1 GHz forum