search

Rainbow-electronics DS1821 Manual do Utilizador Página 13

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 17
  • Índice
  • MARCADORES
    • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 12
DS1821
Page 13 of 17
RELATED APPLICATION NOTES
The following Application Notes pertain to the DS1821. These notes can be obtained from the Dallas
Semiconductor “Application Note Book,” via the Dallas website at http://www.dalsemi.com or through
our faxback service at (214) 450–0441.
Application Note 67: “Applying and Using the DS1620 in Temperature Control Applications”
Application Note 74: “Reading and Writing Touch Memories via Serial Interfaces”
Application Note 105: “High Resolution Temperature Measurement with Dallas Direct-to-Digital
Temperature Sensors”
Sample 1-wire subroutines that can be used in conjunction with AN74 can be downloaded from the
Dallas website or anonymous FTP Site.
DS1821 OPERATION EXAMPLE
In this example, the master device programs the DS1821 with T
L
= +10°C and T
H
= +40°C and verifies
that the data has been saved correctly. The master then programs the status/configuration register so that
the device will power-up in thermostat mode (T/R¯ = 1) and the thermostat output will have active high
polarity (POL = 1).
MASTER
MODE
DATA (LSB
FIRST)
COMMENTS
TX Reset Master issues reset pulse.
RX Presence DS1821 responds with presence pulse.
TX 01h Master issues Write TH command.
TX 28h Master sends data for T
H
= +40°C.
TX Reset Master issues reset pulse.
RX Presence DS1821 responds with presence pulse.
TX 02h Master issues Write TL command.
TX 0Ah Master sends data for T
L
= +10°C.
TX Reset Master issues reset pulse.
RX Presence DS1821 responds with presence pulse.
TX A1h Master issues Read TH command.
RX 28h Master reads stored T
H
value to verify data.
TX Reset Master issues reset pulse.
RX Presence DS1821 responds with presence pulse.
TX A2h Master issues Read TL command.
RX 0Ah Master reads stored T
L
value to verify data.
TX Reset Master issues reset pulse.
RX Presence DS1821 responds with presence pulse.
TX 0Ch Master issues Write Status command.
TX 06h Master sends status/configuration data to the DS1821 with T/R¯ =
1 (thermostat mode at power-up) and POL = 1 (active high
thermostat output).

Power is cycled; DS1821 powers-up in thermostat mode.
Vista de página 12
1 2 ... 8 9 10 11 12 13 14 15 16 17

Comentários a estes Manuais

Sem comentários
Manuais e produtos relacionados com Sensores Rainbow-electronics DS1821
Sensores Rainbow-electronics DS60 Manual do Utilizador   (4 páginas)
Sensores Rainbow-electronics АТ89LV52 Manual do Utilizador   (22 páginas)
Sensores Rainbow-electronics ADC11L066 Manual do Utilizador   (27 páginas)
  • SoundBot MARSH SOUND DESIGN Leisure Zeta Alarm Systems Dolphin
  • Carrier Compressores de ar Roberts Radio Despertadores Olympus Monóculos Sony Mini-PCs IBM TVs e monitores
  • Asus V9-P8H77E BLANCO 510-883 Alpine IVA-D511R Vox TB35C1 Samsung SM-T830
  • LG BP135 Manual do Utilizador Sven HA-430T Manual do Utilizador Samsung GT-I9000M Manual do Utilizador Seagate ST9100823A Manual do Utilizador Epson WorkForce WF-2540WF Manual do Utilizador

    • © 2020, manymanuals-pt.com. Todos os direitos reservados. | 0.104 s |
    Manymanuals.com Manymanuals.de Manymanuals.fr Manymanuals.it
    Manymanuals.pl Manymanuals.cz Manymanuals.es Manymanuals-pt.com