• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 54 subscribers
  • Views 925 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CCS/MSP430FR5994: MSP430FR5994

CHANDRA SEKARAN VT
Prodigy 235 points

Part Number: MSP430FR5994
Other Parts Discussed in Thread: MSP430F5438, MSP430FR5964

Tool/software: Code Composer Studio

Sir,

We want to use MSP430FR5994 for one of our new application.

The data sheet of MSP430FR5994 SPEAKS ABOUT 8KB of SRAM.

But in CODE COMPOSER STUDIO,UNDER MEMORY WINDOW,IT IS SHOWING 4KB when we chose MSP430FR5994.

The code composer version is 6.1.3.

What should we do to see 8KB SRAM to be shown in Memory window.

Regards

VTC

  • 0
    TI__Genius 15370 points

    Hi Chandra,

    The 8KB of RAM on the MSP430FR5994 is split with the Low Energy Accelerator (LEA) module. This means that there is 4KB of RAM shared with LEA and the other 4KB is not shared. The entire 8KB can still be used by your program.

    I'm assuming that when you say "Memory Window" you're referring to the Memory Allocation window under the View tab in CCS. The screenshot below shows this window with the RAM split:

    I also recommend updating to the latest CCS v7.3.

    Best regards,

    Caleb Overbay

  • 0 in reply to Caleb Overbay
    Intellectual 485 points

    Dear Caleb Overbay,

    We have updated to CCS7.3 and compiled a code using close to about 8kb SRAM.This code was running on a working product using MSP430F5438.

    Now we want to run this in FR series,In this CCS7.3, for the same device we could compile a program with a lesser SRAM requirement

    But it is Not compiling.

    Can we be helped please.Above is a program with lesser RAM requirement.

    Below is with near 8kb requirement which was working on MSP4305438.

    Regards

    VTC

       

  • 0 in reply to Vijeth K Shastry
    TI__Genius 15370 points

    Hi Vijeth, 

    Are you planning on using the Low Energy Accelerator (LEA) for your application? If not, you have two options:

    1. Continue to use the MSP430FR5994 with a modified linker file to allow access to the LEARAM
      1. In this case switching to the MSP430FR5964 linker file will work
    2. Switch to the MSP430FR5964 which is identical to the MSP430FR5994 but without LEA
      1. This still has 8KB of RAM and it's not split with LEA

    Best regards, 
    Caleb Overbay