开云体育

GPS PPS on another GPIO pin?

Douglas Pervine #9098 I'm using the BAP build to run a BPQ Node/Winlink Gateway.? I'm using it with an Audio Injector Zero (AIZ) sound card. It uses various pins to operate. One pin in particular is GPIO 18. To setup GPS with PPS. The examples on the Internet say to also use GPIO 18 for the PPS. This is a conflict with the AIZ. Can I use another GPIO pin to sync PPS? Any assistance would be greatly appreciated.? Doug
Jerry Rector #9100 In config.txt, enter the line: dtoverlay=pps-gpio,gpiopin=xx where? ?xx? is the gpiopin you wish to use, assuming that pin is a valid GPIO input pin. toggle quoted message Show quoted text On Sun, Oct 2, 2022 at 9:14 PM Douglas Pervine <douglas.pervine@...> wrote: I'm using the BAP build to run a BPQ Node/Winlink Gateway.? I'm using it with an Audio Injector Zero (AIZ) sound card. It uses various pins to operate. One pin in particular is GPIO 18. To setup GPS with PPS. The examples on the Internet say to also use GPIO 18 for the PPS. This is a conflict with the AIZ. Can I use another GPIO pin to sync PPS? Any assistance would be greatly appreciated.? Doug
Douglas Pervine #9101 The reason I ask.. Using this as a reference: GPIO 18 also has special functions (PCM CLK) whereas ( example GPIO 17) other GPIO pins are just generic.?? Does PPS need the CLK function of GPIO 18?
Jerry Rector #9108 For my GPS Hat, I am using pin 16, as 18 is used for another of my Hats. My GPS Hat did not require PCM CLK. toggle quoted message Show quoted text On Mon, Oct 3, 2022 at 6:55 AM Douglas Pervine <douglas.pervine@...> wrote: The reason I ask.. Using this as a reference: GPIO 18 also has special functions (PCM CLK) whereas ( example GPIO 17) other GPIO pins are just generic.?? Does PPS need the CLK function of GPIO 18?

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