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PSoC™ 5, 3 & 1 Forum Discussions

odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

This is the announcement of the custom Tachometer component (Tach24 v0.0), which allows continuous frequency monitoring of up to 24 parallel digital inputs using PSoC5.

Tach24: 24-channel Tachometer component

 

Figure 1. Typical component application for DC fan speed measurement. The input Pin_1 is configured for resistive Pull Up. Tachometer is configured for 2 inputs, continuously sampling fan speed both on falling and rising edges. Sampling rate is 20Hz. See details in the link above.

Tach24_1x Fan 3pin_01a_A.png

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Gautami_12
Moderator
Moderator
Moderator
50 solutions authored 25 likes received First comment on blog

Hi @odissey1 ,

Can you please let me know which version of PSoC Creator software you are using? and MPN of the PSoC4 device you are facing an issue with?

Warm Regards,
Gautami J

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Gautami J,

The Tac24 component was tested using Creator 4.0 and 4.4. Component is not compatible with PSoC4 for a reason - it uses Cortex-M3 DWT timer, which is absent on PSoC4 Cortex-M0 chips. 

It is possible to substitute 32-bit DWT timer with 24-bit SysTic timer, available on PSoC4, which will affect the specs of the tachometer, and require additional testing and modification of the Datasheet. That is too much work for me at this point. 

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