Accuracy of i.MX6DQ timers.

[satoshishimoda]

Hi community,

Our customer have a question about i.MX6DQ.

They want to know the accuracy of each i.MX6DQ timers (GPT, EPIT, SRTC, ・・・).

Would you let me know it?

(e.g. GPT accuracy = PLL accuracy = 24MHz crystal accuracy, SRTC accuracy = 32kHz crystal accuracy)

Best Regards,

Satoshi Shimoda

[Yuri · Accepted solution]

Hello,

Accuracy of the mentioned timers also are affected by parameters of internal PLLs, which, strictly speaking, are not specified. In particular, we can refer to Table 2-20 (24 MHz crystal tolerance guidelines) of Hardware Development Guide for i.MX 6 , assuming stability (thermal, voltage and other) of PLL output clock is fully defined by external crystal / oscillator, and i.MX6 meets USB, PCIe, Ethernet clock specs. 

< http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf >

Have a great day,
Yuri

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