A few more SDH-100 questions

[jgalinat]

@dmcnaugh
Hi David,
Thank you for the answers. I was looking through the docs & I didn’t see any of these items addressed, especially the Comms & patch jumpers. I guess I just missed them. Also what is the SWDIO SWCLK jumper for at the top of the board for?

I would like to run this board with SIO-2 ports A & B enabled but also use the S-132 as the Dazzler display. Is this possible? According to what I have read, it appears that as soon as the S-132 is detected, the console switches over to the S-132. Is there anyway to use 2 serial ports at the same time as the S-132 Dazzler display?

Also if I want to test a real physical SIO-2 board, what do I comment out in the boot.conf file?

Sorry for all the questions but I am better at soldering than understanding some of this stuff.

Best regards
Jeff

[dmcnaugh]

Also what is the SWDIO SWCLK jumper for at the top of the board for?

Not a jumper, SWD (IO/CLK/GND) is a 3-wire debug port for ARM processors. It is of no use on the SDH-100 in production. If you connect a debugger to it you will crash the SDH-100 and your IMSAI.

Is there anyway to use 2 serial ports at the same time as the S-132 Dazzler display?

No, the S-132 will always consume UART0 leaving you with only one (1) additional UART.

Also if I want to test a real physical SIO-2 board, what do I comment out in the boot.conf file?

Covered in https://thehighnibble.com/sdh100/boot-conf-guide/

• Comment out the SIO.iobase=default line to disable the SIO function on the SDH-100
• or edit that line to move the SIO to a different IO port number range.