Chronas

Chronas is a firmware for the eZ430-Chronos wrist watch written in assembly language. It imitates vi modes.

Mode indication

The current mode is shown in the upper left corner of the screen using two arrows. If any arrow is blinking you are in a meta mode. A meta mode will resolve into a stable mode after 1 second or immediately by pushing num|up|down.

• both arrows off : normal mode
• both arrows on : insert mode
• lcd off : visual mode
• up arrow blinking : meta normal
• down arrow blinking : meta visual
• both arrows blinking : meta insert

How to change modes (final state machine):

                          num|up|down
                            +----+
                            |    |
                            v    |
     +------------------------+  |           +--------------+
     |         normal mode(0) |--+   star    |  meta normal |
     |                        |------------->|              |
+--->|                        |              |              |
|    |                        |<-------------|              |
|    +------------------------+     [1s]     +--------------+
|                                num|up|down       |
|                                                  |
|                                                  |
| star                    num|up|down              | star
|                           +----+                 |
|                           |    |                 |
|                           v    |                 v
|    +------------------------+  |           +--------------+
|    |         insert mode(2) |--+           |  meta insert |
+----|                        |              |              |
|    |                        |<-------------|              |
|    |                        |     [1s]     |              |
|    +------------------------+  num|up|down +--------------+
|                                                  |
|                                                  |
| star                    num|up|down              | star
|                           +----+                 |
|                           |    |                 |
|                           v    |                 v
|    +------------------------+  |           +--------------+
|    |         visual mode(4) |--+           |  meta visual |
+----|                        |              |              |
     |                        |<-------------|              |
     |                        |     [1s]     |              |<-+
     +------------------------+  num|up|down +--------------+  |
                                                          |    | star
                                                          +----+

Modules

iloveyou

shows "Ich ♥ dich"

bintime

shows time in binary notation (hours on 1st line, minutes on 2nd line)

Button usage:

• num: not used
• up: increment hours by 1
• down: decrement minutes by 1

Bugs:

• 12PM is shown as 12AM
• 12AM is shown as 0AM

hextimedate

shows time and date in hexadecimal notation (hours and minutes on 1st line, month and day on 2nd line)

Button usage:

• num: go to next unit
• up: increment unit
• down: decrement unit

radix

converts between decimal and binary|hexadecimal notation

Button usage:

• num: change radix
• up: increase number by one
• down: decrease number by one

Screenshots

Download

• chronas (binary)
• chronas.tar.gz (source code)

Contact

echo wjvrq@zngu.hav-ovryrsryq.qr | tr a-z n-za-m