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RT1050 is slower than RT1010

Question asked by Laszlo Hars on Jan 20, 2020
Latest reply on Feb 11, 2020 by Mark Butcher

With MCUXpresso I developed an application, which takes about 2.5 million CPU cycles on an i.MX RT1010 MCU, running at 500 MHz. Then I compiled and run the same C source code for the i.MX RT1050, with the same optimization (-os). The code is executed from the flash, cache enabled.

Surprisingly, the RT1050 takes 3 million CPU cycles for the same task (measured with the DWT registers).

- What can be the reason for the larger CPU cycle counts on the RT1050?

- What can I do to get the smaller CPU cycle counts of the RT1010 on the RT1050?