PSoC 4 MCU

[ViDv_264506]

        Hi, the dedicated pin P0[6] for the PSoC4 external oscillator need to be configured (where and how). Regards, Viktor   

[Anonymous]

        Similar discussion had been done. http://www.cypress.com/?app=forum&id=4749&rID=80466   

[Anonymous]

And here

   

http://www.cypress.com/?rID=80799&source=creatorstart

[JoMe_264151]

In the clock view, double click on any clock to get the "Configure System Clocks" dialog. There you tell the external clock's frequency and change the source for the main-clock HFCLK to external. No other specifications for pin 0_6 are needed afaik. Do not put p0_6 into your pin list, will be handled by the system.

       

Bob

[ViDv_264506]

 Hi, In the ExtOsc.png you can see the settings. All works now OK. My problem with VALPEY-FISHER 40 MHz oscillator was caused by HW. On the CY8CKIT-042 one ceramic 100n blocking condensator and one tantal 1uF elyt as close as possible to the oscillator solved the situation with oscillator start/stability. Regards, Viktor  

[Anonymous]

 It's good that people come back and post the result. This can help the others that has the same problem 🙂

[ETRO_SSN583]

Viktor, when using bulk bypassing, tants, take a look at Polymer Tantalum,

   

'they have ~ 10X better f vs ESR curves than traditional tantalums. Much better

   

caps.

       

Regards, Dana.