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odroid n2 plus doesn't detect pps by update lastest kernel #434

Open NHMMing opened 1 year ago

NHMMing commented 1 year ago

Hello, thanks for your update.It's nice. I want to use pps-gpio to transform PPS signal to odroidn2+ by using GPIO. However, I met a problem. I update lastest kernel (default branch, commit: 68fedaf86cb42b07e615bd4cf9defb36dfe998f3) by using cross-compile (referring by [https://wiki.odroid.com/odroid-n2/software/building_kernel]). I didn't do any change in file *.dts due to lastest commit had changed them. I just make and copy some kernel files to SD card and reboot odroidn2+. when I printed cmd "sudo dmesg | grep pps ", i didn't see message related to "pps-gpio",just saw [ 0.470023] pps_core: LinuxPPS API ver. 1 registered [ 0.470027] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> I'm confused about if "pps-gpio" is working. And what can I do to use pps-gpio? Looking forward to your reply！

Best wishes, mming

tobetter commented 1 year ago

Please refer to the link, https://forum.odroid.com/viewtopic.php?p=371632#p371632

NHMMing commented 1 year ago

Please refer to the link, https://forum.odroid.com/viewtopic.php?p=371632#p371632

thanks a lot. I try it now.