problem with ds1620

[Macgman2000]

Have you tried to "Include modedefs.bas"


Best Regards,
Nick

[Acetronics2]

Hi, Santa

Have a look to the Basic Stamp 1 application notes ( ch.23 : DS 1620 digital thermometer ... )

This is page 189 from the Basic stamp programming manual 1.9 ...

Download it from Parallax inc.

- and do not forget the "Include modedef ...."

Alain

PS: another version
' Sous-programmes de dialogue avec un DS 1620
' connecte comme indique figure 7.15
' Version pour Basic Stamp II ou II-SX

' Definition des constantes et variables

CLK con 15
DQ con 14
RST con 13

wcfg con $0C
cpucont con 2
startc con $EE
rtemp con $AA

temp var word

' Initialisation

low RST
high CLK
pause 100 ' attente prise en compte DS 1620
high RST
shiftout DQ, CLK, lsbfirst, [wcfg, cpucon]
low RST
pause 50 ' attente prise en compte DS 1620
high RST
shiftout DQ, CLK, lsbfirst [startc]
low RST
pause 1000 ' attente d'une seconde

' Lecture de la temperature mesuree par le DS 1620

lecture:
high RST
shiftout DQ, CLK, lsbfirst [rtemp]
shiftin DQ, CLK, lsbpre [temp\9]
low RST

' La temperature mesuree par le DS 1620
' est disponible dans temp codee sur 9 bits

Listing 7.6

[jojokatada]

PBP have new command owin which is much efficient than shiftout check my previous post i have complete but using pic16f84a

[Acetronics2]

Hi, jojo

Do you feel sure not to mix DS 1620 and DS 1820 ???

I'm not so sure ...

Alain

[jojokatada]

sorry i am wrong i thought ds1820

[santamaria]

Have you tried to "Include modedefs.bas"


Best Regards,
Nick

i don't think so is modedefs because i use the same values for that but i will do it because you never know.can you explain me how syncronus data works?maby i will find what its going wrong

thanks all for your support