We use CPU is i.MX 6Quad_MCIMX6Q6AVT10AD,When we do the high temperature 75 ℃, USB video will be caton, the picture is not smooth, like lost frames!What could be the reason? How do I find out why?
General thermal considerations (relations between ambient and junction temperatures)
are provided in app note AN4579 (i.MX 6 Series Thermal Management Guidelines).
In particular, customers can use thermal characteristics from i.MX6 Datasheet :
Tj = Ta + RthJA * Pd
Tj - junction temperature;Ta - ambient temperature;RthJA - Thermal resistance Junction to Ambient; Pd - power consumption.
The mentioned "the high temperature 75 ℃", looks like, is ambient temperature, meaning that the junction one may exceed the allowed maximum. This means i.MX6 normal operation
cannot be guaranteed. Perhaps a heat sink is need for the i.MX6.
Thanks for your replay!When I test, I found that high temperature caton, CPU temperature is 92 ℃, the CPU frequency down to 400M, where is the temperature setting?What is the default software of high temperature?
What is BSP release in the case?
We use BSP release:M6.0.1_2.0.0-ga
Your system is based on Linux 4.1.15 kernel.
Customers can use section 2.7 (Thermal) of i.MX_Linux_Reference_Manual.pdf
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