Date: Sun, 23 Jun 2019 21:42:16 +0100 From: Kaya Saman <kayasaman@optiplex-networks.com> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Pine64-LTS and UART ports Message-ID: <371fe0f0-9f91-e4ba-ff4e-8338fe9d63de@optiplex-networks.com>
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Hi, I've attached an RS232c converter board to UART2 on my Pine64-LTS board.=20 I followed the pinout diagrams from here: http://synfare.com/599N105E/hwdocs/pine64/gpiosgeo.html I'm using Pin 4 and 6 to power the board and have In1 connected to Pin 8=20 (TX) and Out1 connected to Pin 10 (RX), on the Pi-2-BUS header. AK-3232 In1 <- Pine64 Pin8 (UART2 TX) AK-3232 Out1 -> Pine64 pin10 (UART2 RX) The converter I'm using is an AK-3232:=20 https://www.artekit.eu/ak-3232-usage-guide/ based on the ST3232B chip. What do I have to do to get FreeBSD to see the AK-3232 board and use it=20 as a COM port? Currently I've gone through the UART man page and am looking here:=20 https://www.freebsd.org/doc/en_US.ISO8859-1/articles/serial-uart/article.= html At the moment the only TTY devices listed are the UART0 from the Exp=20 connector and the Prolific USB serial converter U0 I have attached. Here is the version I'm running: 12.0-RELEASE-p3 FreeBSD 12.0-RELEASE-p3=20 r347570 PPS-GENERIC=C2=A0 arm64 The only change to my kernel is that I added PPS support to it: # PPS Support options=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PPS_SYNC Based on my reading I created a 'hints' file for it: /boot/device.hints hint.uart.2.disabled=3D"0" but I'm not sure if this is correct? Do I need to adjust anything in the gpioctl?=20 https://wiki.freebsd.org/FreeBSD/GPIO Many thanks. Kaya
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