RP6502-RIA-W¶
Rumbledethumps Picocomputer 6502 Interface Adapter W
Table of Contents
1. Introduction¶
The RP6502 Interface Adapter W (RIA W) is a Raspberry Pi Pico 2 W running the RP6502-RIA-W firmware. The RIA W provides all the features of the RP6502-RIA plus integrated wireless services, as described below.
2. WiFi Setup¶
The RIA W uses an Infineon CYW43439 chip supporting Wi-Fi 4 (802.11n). Configuration is performed via the console interface.
Enable/Disable Radio: Use
SET RF (0|1)
to enable (1, default) or disable (0) all radios without affecting other settings.Set Country Code:
SET RFCC (cc|-)
sets the WiFi country code for optimal performance (e.g.,US
,GB
). Usehelp set rfcc
to list supported codes. Use-
to reset to the worldwide default.Set Network Name (SSID):
SET SSID (ssid|-)
sets your WiFi network name (Service Set Identifier). Use-
to clear.Set Network Password:
SET PASS (pass|-)
sets your WiFi password. Use-
to clear.Check WiFi Status: Use the
status
command to view current WiFi connection and settings.
3. Network Time Protocol (NTP)¶
The real-time clock (RTC) automatically synchronizes with internet time servers when connected. Check NTP status with the status command.
Set Time Zone: To use local time instead of UTC, set your time zone with
SET TZ
. Usehelp set tz
for guidance. Daylight saving adjustments are automatic if your locale observes them.
Once WiFi and time zone are configured, timekeeping is automatic—no battery required and no drift to worry about.
4. Modem Emulation¶
The RIA W can emulate a Hayes modem for BBS access. Beware that raw TCP and telnet protocols are plain text in transit.
AT Commands: The modem interface supports standard AT commands for dialing, answering, and configuration.
Example AT commands:
ATDexample.com:23
— Dial a BBS+++
— Escape back to command modeATE1
— Set echoATH
— Hang upATO
— Return to callATQ0
— Set quietingATSxxx?
— Query register number xxxATSxxx=yyy
— Set register number xxx with value yyyATV1
— Set verbosityATX0
— Set progress messagingATZ
— Load profile from NVRAMAT&F
— Load factory profileAT&V
— View profileAT&W
— Write profile to NVRAMAT&Z0=example.com:23
— Save “telephone number” to NVRAMAT+RF=your_ssid
andAT+RF?
— Access RIA setting RFAT+RFCC=your_ssid
andAT+RFCC?
— Access RIA setting RFCCAT+SSID=your_ssid
andAT+SSID?
— Access RIA setting SSIDAT+PASSS=your_ssid
andAT+PASS?
— Access RIA setting PASS
A full telnet stack has yet to be written so all connections are raw TCP.
“Telephone Numbers” are saved immadiately and are not linked to profiles.