topic Re: Interrupt Port Code Generation in KDS2.0 for KL25 in Kinetis Microcontrollers

Interrupt Port Code Generation in KDS2.0 for KL25

youngcheolsong — Wed, 29 Apr 2015 06:55:41 GMT

Hello,

i designed USB device using MKL25Z128VLK4 with KDS 2.0 .

i want to use the PTA4/NMI port(pin 30) to GPIO Interrupt input.
However the generated code is not correct to use for GPIO interrupt input.

it is different from the generated code by the CodeWarrior 10.4.

below is the different part between KDS2.0 and CW10.4.

<CW10.4>

/* Clear interrupt status flag - w1c */

PORTA_ISFR = PORT_ISFR_ISF(0x10);

/* Initialization of Port Control registers */

/* PORTA_PCR4: ISF=0,IRQC=0x0B,MUX=1 */

PORTA_PCR4 = (uint32_t)((PORTA_PCR4 & (uint32_t)~(uint32_t)(

PORT_PCR_ISF_MASK |

PORT_PCR_IRQC(0x04) |

PORT_PCR_MUX(0x06)

)) | (uint32_t)(

PORT_PCR_IRQC(0x0B) |

PORT_PCR_MUX(0x01)

));

<KDS2.0>

/* PORTA_PCR4: ISF=0,MUX=7 */

PORTA_PCR4 = (uint32_t)((PORTA_PCR4 & (uint32_t)~(uint32_t)(

PORT_PCR_ISF_MASK

)) | (uint32_t)(

PORT_PCR_MUX(0x07)

));

Could you help me to use KDS2.0 ?

Original Attachment has been moved to: KDS20_ExtIntLdd9.c.txt.zip

Original Attachment has been moved to: CW104_ExtIntLdd9.c.txt.zip

Re: Interrupt Port Code Generation in KDS2.0 for KL25

marek_neuzil — Thu, 30 Apr 2015 12:36:21 GMT

Hello,

Thank you for reporting of this issue. The ExtInt_LDD component in KDS 2.0.0 contain a bug. I will report this defect to the responsible development team.

Best Regards,

Marek Neuzil

Re: Interrupt Port Code Generation in KDS2.0 for KL25

david_diaz — Thu, 30 Apr 2015 15:47:28 GMT

Hello,

The following document could be useful for you:

https://community.freescale.com/docs/DOC-104352

This document explains the interrupt handling mechanism of KSDK platform and how to use it for baremetal KSDK projects.

Have a great day.

Best Regards, :smileyhappy:

David Diaz.