From 63576ee6728c8ce856fe996a7e70ba2fedaac873 Mon Sep 17 00:00:00 2001 From: Will Sowerbutts Date: Fri, 20 Feb 2015 23:51:42 +0000 Subject: [PATCH] p112: README update --- Kernel/platform-p112/README | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/Kernel/platform-p112/README b/Kernel/platform-p112/README index 419a4cd3..5dd35798 100644 --- a/Kernel/platform-p112/README +++ b/Kernel/platform-p112/README @@ -7,7 +7,14 @@ Supported hardware: - Real time clock - SMC floppy disk drive controller - G-IDE hard disk drive controller - - First serial port (ESCC channel A, tty1) + - Serial ports: + tty1: ESCC channel A (RS232 levels on P4, standard boot ROM uses this port) + tty2: ESCC channel B (TTL levels on P14 header; untested) + tty3: ASCI channel 0 (TTL levels on P14 header; untested) + tty4: ASCI channel 1 (TTL levels on P14 header; untested) + tty5: SMC 16550A (RS232 levels on P8) + +The serial ports require the use of RTS/CTS flow control. To build the kernel, edit the TARGET line in Kernel/Makefile to read: export TARGET=p112 -- 2.34.1