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Anonymous
Not applicable

Hi Cypress Team, 

   

I want to configure timer in my project with 1 Micro second .

   

i used timer function block , set the clk at 2 MHz and count is 2, so it is showing 1us .

   

but i want to reconfigure timer in my state machine many times with different time configuration (1,3,20us and 125us).

   

so in the ISR , written code   

   

   CY_ISR(Timer_ISR)
{
    Timer_ISR_ClearPending();

   

 //Timer_1ms_ClearFIFO();

   

BottomTemperatureControl();

   

}

   

void BottomTemperatureControl(void)

   

{

   

//here am calling reload timer function with different timer time configuration.

   

ReloadTimer(Number of us timer configuration); 

   

}

   

 

   

void ReloadTimer(int nTimerInMicroSeconds)
{
  Timer_1ms_Stop();
    nTimerInMicroSeconds = nTimerInMicroSeconds * 2;
   Timer_1ms_WritePeriod(nTimerInMicroSeconds);
    Timer_1ms_Start();
   
}

   

if i want to set 3us timer, then i will pass 3 to the reloadTimer function and calculate the period count value inside the reload functon.

   

for 2 counts, 1us timer 

   

for 3 us, 2*3 = Count value(6).

   

if high set this value for 100us ,50us its working fine but for 3us timer , getting 40us pulse.

   

 

   

kindly help me in this.

   

I am not able to configure 16, 24 ,32 bit resolution for  the attached  timer function block .

   

it is showing error if I select 16,24 bit resolution.

   

please find the attached images for timer configuration. 

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Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Can you please post your complete project, so that we all can have a look at all of your settings. To do so, use
Creator->File->Create Workspace Bundle (minimal)
and attach the resulting file.

   

 

   

Bob

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Anonymous
Not applicable

thank you for immediate response , please find the attached project code

   

Regards,

   

Ambarish

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Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Your function BottomTemperatureControl() consumes some more time than just a few µs. Or do you want to have a ms timer? having one million interrupts per second will bust any CPU.

   

 

   

Bob

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