CCS/MSP432P401R: Project template for assembly language not found

Sharafuddeen,

CCS does not provide assembly language only templates for MSP432.  There are there for MSP430 but not 432.

This is what it looks like for an MSP430 device:

I will loop in the MSP432 team to see if they have any examples.

Regards,

John

Hi Sharafuddeen,

You can find code examples for MSP432P401R at http://dev.ti.com/tirex/explore/node?node=AGFblz3e8i2obDj8Zj3kUg__z-lQYNj__LATEST

But all of them are only with 'C' code and none with Assembly code.

Srinivas

Hi Srinivas, 

I am working on a project to build an RTOS.  The main part of my scheduler is in assembly language.  If I cannot create an assmebly-only project for MSP432P401R as JohnS said, then I can use in-line assembly in C program.  However, the following statement returns error when I compile:

asm("   LDR     R0,   =tcb_current");

The error is "[E0200] Bad term in expression"

The purpose of this statement is to copy the value of the C global variable tcb_current to register R0.  I know this is a valid statement but I wonder why CCS is throwin an error.  Can you please help me how I can copy the a global C variable into register R0 in CCS?

Thanks,

Sharafuddeen Nalakath 

Hi Sharafuddeen,

I think the issue is that syntax for LDR usage. This link has the usage of LDR instructions https://developer.arm.com/docs/dui0553/a/the-cortex-m4-instruction-set/memory-access-instructions and specifically for LDR at https://developer.arm.com/docs/dui0553/a/the-cortex-m4-instruction-set/memory-access-instructions/ldr-and-str-immediate-offset

I think the accepted syntax is 

asm(" LDR R0, [R4]"); where you have assigned R4 for the tcb_current

Srinivas