topic Re: SCT0_OUT0 and SCT0_OUT1 PWM control in LPC11U67 in LPC Microcontrollers

SCT0_OUT0 and SCT0_OUT1 PWM control in LPC11U67

Hari_Royal — Tue, 27 Jun 2023 15:36:47 GMT

Hi i can able to use SCT0 for generating PMW signals of fixed 50% duty cycle on SCT0_OUT0 & SCT0_OUT1 but i cant able to control the outs (On/Off) individually. . Can someone help me how can i Turn ON/OFF the individual output (SCT0_OUT0 & SCT0_OUT1) independently whenever i want.

Re: SCT0_OUT0 and SCT0_OUT1 PWM control in LPC11U67

Alice_Yang — Wed, 28 Jun 2023 08:42:58 GMT

Hello @Hari_Royal

When want to turn off, you can configure the related SCT0_OUT pin as gpio, and configure it pull up/down.

When want to turn on, configure it as SCT0_OUT function.

Alice

Re: SCT0_OUT0 and SCT0_OUT1 PWM control in LPC11U67

Hari_Royal — Wed, 28 Jun 2023 08:53:27 GMT

Alice , you mean when i need to turn Off the PWM on SCT0_OUT / SCT0_OU1 i need to change the configuration to GPIO with Pullup/down then set Pin to Low ? and then when i need to turn on PWM i need to configure back to SCTO output.

so each time i need to change the configuration

==> from GPIO->SCT_OUTPUT to Turn ON PWM

==>from SCT_OUTPUT -> GPIO to Turn OFF PWM ?? is that what you mean

Re: SCT0_OUT0 and SCT0_OUT1 PWM control in LPC11U67

Alice_Yang — Thu, 29 Jun 2023 03:50:45 GMT

Hello @Hari_Royal

1)"so each time i need to change the configuration

==> from GPIO->SCT_OUTPUT to Turn ON PWM

==>from SCT_OUTPUT -> GPIO to Turn OFF PWM ?? is that what you mean "

->> Yes.

2) Confirm one of my mistake, when change to GPIO, configure it as output, not input, then out put low or high refer to your requirement.

Alice