TMS320C6415: function name in vectors.asm

Minjung Lee

Part Number: TMS320C6415
Other Parts Discussed in Thread: 66AK2G12

hello, I'm newbie here.

I've received TMS320C6415 code from my team.

While reviewing this code, I encountered a question regarding the function naming convention for an Interrupt Service Routine (ISR).

In vectors.asm

; (vector 4)
.align 32
STW A0, *B15--[1]
MVKL _int4_isr, A0
MVKH _int4_isr, A0
B A0
LDW *++B15[1], A0
NOP
NOP
NOP 2

However, in the corresponding C code, the ISR is named int4_isr (without the underscore).

How does the ISR named _int4_isr in vectors.asm map to the ISR named int4_isr in the C code?

7 months ago

0 Nick Saulnier 7 months ago

TI__Guru* 83095 points

Hello Minjung,

C6415 is a very old device with no design support, as per the banner on the product page: https://www.ti.com/product/TMS320C6415

Please also note that this device is in the lifecycle phase of "last time buy". Refer to https://www.ti.com/support-quality/quality-policies-procedures/product-life-cycle.html for more details.

If you are creating a new design, we strongly suggest moving to a more recent part with design support.

Regards,

Nick

0 Minjung Lee 7 months ago in reply to Nick Saulnier

Prodigy 90 points

I know that this device is old.

what I'm assigned to do is moving code from c6415 to 66ak2g12....so I thought the first thing to do is understaning how the code works on c6415.

0 Nick Saulnier 7 months ago in reply to Minjung Lee

TI__Guru* 83095 points

Hello Minjung,

Glad to hear that yall have a transition plan. Please note that though we will continue selling K2G silicon for many years to come (as described in that "product-life-cycle" link above), we also have no design support for TI-RTOS on K2G as described on the SDK download page and here.

With that in mind, I am going to send your thread to another team member to see if they have any input off the top of their head.

Regards,

Nick

+1 Jianzhong Xu 7 months ago in reply to Nick Saulnier

TI__Mastermind 46615 points

Hi Minjung,

Minjung Lee said:
How does the ISR named _int4_isr in vectors.asm map to the ISR named int4_isr in the C code?

This is the naming convention and it is taken care of by the assembler. You should be able to find this information in C6000 programmer's guide.

Regards,

Jianzhong

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TMS320C6415: function name in vectors.asm