AXE033 real time clock problems

[Pekari]

I have several problems with AXE033 LCD-display with real time clock.

Sometimes clock resetting even battery is good >3V (CR2032).
These commands doesn't work:

serout 1,N2400,(253,9,"00:00:10        ")

and:

serout 1,N2400,(253,10)

Always when I am programming that AXE033, I use 4,6...4,9V supply.

 

[Pekari]

What is wrong in my code?

Why doesn't it work?

init:	pause 500
main:	'serout 1,N2400,(253,8,"03/12/08 17:06  ")' This works.
	serout 1,N2400,(253,9,"00:00:15        ")' This doesn't.
	pause 1000
time:	serout 1,N2400,(0)
	pause 1000
	readadc 2,b0
	if b0>10 then ring
	goto time
ring:
	play 2,1
	goto time

 

[kevrus]

deleted as my post was incorrect

 

[Pekari]

Manual, Page 14.
http://www.rev-ed.co.uk/docs/axe033.pdf

 

[kevrus]

I saw the page in the manual which is why I edited my post, in my haste, I mis-understood your original problem

 

[Pekari]

Doesn't anybody have this problem?

I doubt about that because I have used TWO AXE033 and neither of those doesn't work as in manual page 14 (253,9 and 253,10).
I guess all AXE033 have these same bugs.

What Tecnical say about this?

 

[Technical]

The command works exactly as stated for us - the alarm output switches high for 5 seconds. What are you testing / trying to do?

 

[Pekari]

If I try this code:

init:	pause 500
main:	'serout 1,N2400,(253,8,"03/12/08 17:06  ")' This works.
	serout 1,N2400,(253,9,"00:00:15        ")' This doesn't.
	pause 1000
time:	serout 1,N2400,(0)
	pause 1000
	readadc 4,b0
	if b0>10 then ring
	goto time
ring:
	play 2,1
	goto time

I have connect in to pin 1 and out to pin 4.
Why doesn't it play a tune (PICAXE 08M)?

 

[hippy]

Is the alarm out from the AXE033 not a digital output ? It should be possible to read it as an analogue input with READADC but that could be part of the problem.

Have you tried using a LED+R to monitor the actual state of the alarm output line or, better still, a meter or oscilliscope if you have access to either ?

 

[Pekari]

When b1=0 and time is what are setting to alarm, it will play tune (AXE033_OUT=4.2-4.4V).
When b1=1 it never play tune and AXE033_OUT=0V.

#picaxe 08m
b1=1
init:	pause 500
main:	if b1=0 then
	serout 1,N2400,(253,8,"07/12/08 09:48  ")' This works.
	else
	serout 1,N2400,(253,9,"00:00:15        ")' This doesn't.
	endif
	pause 1000
time:	serout 1,N2400,(0)
	pause 1000
	readadc 4,b0
	if b0>10 then ring
	goto time
ring:
	play 2,1
	goto time

Is the circuit ok?

 

[hippy]

Is the circuit ok?

Definitely not.

0V of PICAXE ( leg 8 ) is not connected to 0V
+V of LCD is connected to 0V (leg 8 ) of PICAXE

If this is how you have it then it could explain a lot. PICAXE ( and PICmicro ) devices can function using 'parasitic power' when currents flow in and out through I/O ports creating a sometimes apparently working circuit when it is actually entirely unstable.

 

[Pekari]

Sorry!

That bug is only in drawing, but not real board.

This is a fixed circuit.

Is this ok?