topic Re: lwtimer callback function each 70us in MQX Software Solutions

lwtimer callback function each 70us

Garil — Thu, 28 Mar 2013 09:22:30 GMT

Hi all

it is possible to have a callback function called each 70us interval with the lwtimer or using some others mqx timers ?

if yes, which are the configuration to make in order to arrive at that result, i was thinking to change the Bsp time resolution from 200 to 1000(maximum) which is only one ms for the periodic timer ????

can some please advise/help me

thx in advance

Wilson

Re: lwtimer callback function each 70us

BielikM — Thu, 28 Mar 2013 16:50:12 GMT

Hi wilson,

New release 4.0.1 of MQX is coming with a new timer driver called hwtimer. This driver supports PIT timer and Systick and it is available only for kinetis platforms.

But for your required time 70us there is big overhead inside OS. You should create your own minimalism driver (PIT for example) with interrupt routine out off MQX.

Regards,

Bielik Martin