Tachyon newbie question re BLINKY

pmulvey

I have managed "Twinkle Twinkle Little Star" on your piano:

10 FOR 0 HIGH 20 ms 0 LOW 20 ms NEXT

The LED flashes... happy days!

However but when I try something a little harder such as:

:BLINKY 10 for 1 HIGH 100 ms 1 LOW 100ms NEXT;

The terminal reports back this:

...  :BLINKY  ??? 10 for  ??? 1 HIGH 100 ms 1 LOW 100ms  ??? NEXT; ???  -->  ok

It would seem that when I am issuing commands from my ESP to do something like PWM or generate tones I have to issue a series of a commands like a script rather than a single command.

Peter Jakacki

Remember that Forth words are delimited by spaces, so while : is a word and BLINKY could be a word, :BLINKY is not found in the dictionary. Use <colon> <space> <BLINKY> <space> etc and <NEXT> <space> <;> ;
Tyoe WORDS to list out the dictionary and you will see : and ; have an entry. What you type can only be recognized if it is in the dictionary or it is a number, or some kind of special literal.
BTW, taking into account that you need a space, have a look at Hello World and notice where the spaces are.

: HELLO    PRINT" Hello World!" ;

HINT: PRINT" or ." are words

pmulvey

That works Peter. So what is the capacity in the P1 for these routines? Would my ESP initialise a site of such routines into the P1 at startup?

Peter Jakacki

You only really need to load these up once, and then you can do a BACKUP. You can also specify an autostart routine too and in fact this is how we lock in a turnkey application.

Have a look at EXTEND.FTH source and you might be able to see where it starts up at boot, checks for any user init routines, and also starts up a background timing task in another cog etc.

btw - try the inbuilt blinky routine and type

0 BLINKY

then speed it up

15 HZ

MJB

pmulvey wrote: »

I have managed "Twinkle Twinkle Little Star" on your piano:

10 FOR 0 HIGH 20 ms 0 LOW 20 ms NEXT

The LED flashes... happy days!

However but when I try something a little harder such as:

:BLINKY 10 for 1 HIGH 100 ms 1 LOW 100ms NEXT;

The terminal reports back this:

...  :BLINKY  ??? 10 for  ??? 1 HIGH 100 ms 1 LOW 100ms  ??? NEXT; ???  -->  ok

It would seem that when I am issuing commands from my @ to do something like PWM or generate tones I have to issue a series of a commands like a script rather than a single command.

hi @pmulvey good to see new Tachyon users here.
instead of having many little threads about Tachyon we have been using the thread for the current version like
https://forums.parallax.com/discussion/167165/tachyon-neon-v5-fat32-and-ethernet-servers-in-32kb-eeprom#latest
makes it easier to search and browse