Baffa-2 Serial 16550
The serial interface allows the computer to comunicate with other devices. It's possible to connect to another computer via RS232 port, Modem/Wifi or even USB Serial. The maximum speed is 115200 Bauds and it's compatible to 4MHz and 8 MHz setups.
Serial 16550
Serial 16550Related Files:
Firmware:
- Wemos D1 Mini (Wifi Hayes Modem)
https://github.com/abaffa/Baffa-2_Wifimodem
WiFi Modem and Telnet Server by David Hansel with some modification by Chris Davis for Altair-duino and my modifications for Baffa-1, Baffa-2 and Baffa-2+ projects
Settings
MSX 0x80-83JP2 |------- (1-2)
JP5 =o (1-2)
JP1 oo (disabled)
Baffa-2 0xC0-C3
JP2 |------- (1-2)
JP5 o= (2-3)
JP1 = (enabled)
| JP1 | ||
|---|---|---|
| = | (Int Enable) Connects INTR to Bus !INT | |
| JP2 (depends on JP5) | ||
| |------- | 0x80 | 0xC0 | |
| -|------ | 0x88 | 0xC8 | |
| --|----- | 0x90 | 0xD0 | |
| ---|---- | 0x98 | 0xD8 | |
| ----|--- | 0xA0 | 0xE0 | |
| -----|-- | 0xA8 | 0xE8 | |
| ------|- | 0xB0 | 0xF0 | |
| -------| | 0xB8 | 0xF8 | |
| JP4 | ||
| =o | Use CLK2 | |
| o= | Use Board Clock | |
| JP5 | ||
| =o | A6 - maps to 0x80-0xB8 | |
| o= | !A6 - maps to 0xC0-0xF8 | |
| JP3 | ||
| = | Enables VCC 5v to pin 2 on Port | |
| PORT | ||
| Pin 1 | GND | |
| Pin 2 | RTS | |
| Pin 3 | VCC | |
| Pin 4 | RX | |
| Pin 5 | TX | |
| Pin 6 | CTS | |
Related Datasheets:
Related Projects:
Related Revisions:
- Jul/2022 Prototype