topic Re: LPC54616 SCTimer input in LPC Microcontrollers

LPC54616 SCTimer input

wangyanjun — Tue, 12 Jan 2021 03:15:32 GMT

As described in the manual, Tx_OUT0 can be used as SCTimer input.

But what is the Tx_OUT0? Is CTimer's match output or others?

Re: LPC54616 SCTimer input

xiangjun_rong — Thu, 14 Jan 2021 06:45:55 GMT

Hi, YanJun,

As the following Fig shows, the Tx_OUT0 can be an input signal for the SCT module, the signal can function as capture signal, which can generate event with programmable rising/falling edges, if you enable an interrupt, the event can trigger an interrupt. With the capture function, user can test the width of the signal..

Hope it can help you

XiangJun Rong

Re: LPC54616 SCTimer input

wangyanjun — Thu, 14 Jan 2021 06:27:41 GMT

Thank you for your reply.

I found the answer from MCUxpresso Config Tools. The Tx_OUT0 is the CTimer's match channel 0 output.

Re: LPC54616 SCTimer input

xiangjun_rong — Thu, 14 Jan 2021 06:51:59 GMT

Hi, YanJun,

Thank you for the feedback. If the CTimer is used to counts external clock, and you want to test the external signal clock frequency, you can use the CTimer as a divider, the CTimer outputting clock signal can function as a capture signal for the SCT, with the capture function, the SCT can test the external signal frequency.

XiangJun Rong