teensy Teensy 4.1 ethernet I'm a fan of the Teensy line of microcontrollers. I have a whole pile of them for various projects. When I saw that 4.1 was combining a 600MHz processor, 1MB ram, 8MB
ntp Embedded NTP Server Now that I got the results I wanted from my embedded NTP client, I wanted to convert it to an NTP server. I also wanted it to support interleaved NTP mode, so it
ntp Embedded NTP client/NTP interleaved mode, part 5 I'll test what happens when I plug my embedded NTP client directly into my NTP servers, bypassing the Ethernet switch. This ends my long running embedded NTP client series. The systems involvedEmbedded NTP
ntp Embedded NTP client/NTP interleaved mode, part 3 Previous posts: part 1, part 2 In this post, I wrap up my embedded NTP client and use it to measure the difference between my other two NTP servers with hardware timestamps. Goal
stm32 Debian for STM32MP1 I bought a STM32MP1 dev board because it has a gigabit NIC with 1588 PTP timestamps as well as hardware timers that can timestamp PPS events without interrupt latency and jitter. I am
ntp Embedded NTP client/NTP interleaved mode, part 2 Hardware transmit timestamps added to NTP client.
ntp APU2 NTP server I bought an apu2c0. I believe it will make a better NTP server than my other NTP servers.
gps Beaglebone Black timer capture driver More info on: Hardware, Kernel Driver software The Beaglebone Black has a hardware timer capture. This means it can save the couter value at the time an input edge happens. Since it has