Recently I received two cases from Kinetis users. They both meet problem when porting Kinetis Interrupt project from CodeWarrior 10.x to KDS. There is a document KDS_Porting_Guide.pdf under KDS install folder which covers this topic. However I know many customers still have difficulty even they follow the document steps. This scenario is normal; because users’ projects are various, we can’t expect one porting document solve all kinds of problem of individuals. For me, honestly, I seldom use this porting guide to port my project. I prefer porting my project all by hand. Thus I can know my project changes from up to bottom. Thus even if I meet problem later, I can still position it easily and quickly.
For the reason of time, in this article, I will focus on how to port Kinetis Interrupt from CodeWarrior to KDS by hand.
Some NVIC register definition name and file structure are different in CodeWarrior and KDS. One big difference is that KDS uses core file from ARM limited directly. I summarized the difference as below table. It’s good to know the basic difference before we start the porting.
| CodeWarrior | KDS |
NVIC Register Definition : | Where | MCU header file. Eg: MK60N512VMD100.h | ARM Core file. Eg: core_cm4, core_cm0plus.h |
Written by | NXP(former Freescale) | ARM Limited |
Sample of usage | NVICISERx = 0x01 | NVIC->ISER[x] = 0x01 Packaged in NVIC_EnableIRQ(n) |
Vector Table Definition: | Where | Kinetis_sysinit.c | Startup_MK60D10.S |
Language Using | C | Assembly |
Interrupt handler name | Defined by user | Defined by KDS. Eg, PORTA_IRQHandler Allow user modify. |
For more, see attached document.
