topic Re: MQX 4.1: how does timer_lpt.c get compiled? in MQX Software Solutions

MQX 4.1: how does timer_lpt.c get compiled?

huishao2 — Thu, 18 Sep 2014 22:57:02 GMT

Hi-

After upgrading to MQX4.1, I don't see timer_lpt.h get copied into lib\...\debug\bsp and that causes compiler error for reference to LPT_FLAG_CLOCK_SOURCE_ALL. Which BSPCFG_xxx flag do I need set to enable the compilation of low power timer.

thanks!

Hui

Further digging into this problem, I realized that the low power timer API is removed from MQX4.1, not sure why. I am working on k20d50m BSP and K20DX128VFM5 Kinetis that does have low power timer (LPTimer).

Message was edited by: Hui Shao

Re: MQX 4.1: how does timer_lpt.c get compiled?

DavidS — Tue, 23 Sep 2014 19:46:21 GMT

Hi Hui,

Please look at following example:

C:\Freescale\Freescale_MQX_4_1_0_GA\mqx\examples\lowpower

This folder also has PDF to explain the example.

Your user_config.h will need following update:

#define MQX_ENABLE_LOW_POWER 1

Regards,

David

Re: MQX 4.1: how does timer_lpt.c get compiled?

huishao2 — Tue, 23 Sep 2014 20:20:54 GMT

HI David

Thanks for your reply. BTW, what is GA version of MQX like MQX_4_1_0_GA?

regards

Hui

Re: MQX 4.1: how does timer_lpt.c get compiled?

DavidS — Tue, 23 Sep 2014 20:41:37 GMT

Hi Hui,

GA stands for "General Availability". Our marketing team worked on that for a time ;-)

The MQX installer is now post fixed with the GA.

Ex: FSLMQXOS_4_1_0_GA.exe. I modify the default name to include the GA in the path name.

Regards,

David