Tool/software: Code Composer Studio
I'm use MSP430FR2433 to make sure other devices are working properly.
The device operates at 400Hz.
So I should be able to measure 0.0025 seconds to find the error.
I tried using ACLK, but it wasn't accurate enough. result was varying for each MSP chip.
DCO, MCLK is 16MHz.
How can I time accurately and precisely?
Thank in advance.
Hi,
Which clock does ACLK come from in your application? Internal REFO or external crystal?
The internal REFO accuracy is not high, as shown in the figure below:
You use a timer to generate a timing interrupt at 2.5ms. The clock source of the timer is ACLK? I think you can use SMCLK to improve timing accuracy.
Best Regards
Johnson
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