NXP Semiconductors
UM11009
PCA9745B demonstration board OM13524
UM11009
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© NXP Semiconductors N.V. 2016. All rights reserved.
User manual
Rev. 1 — 23 June 2016
23 of 28
800,FF,FF,0C,80,Comments: set GRPPWM=80, NOP for 2nd device
0,00,55,0E,00
5000,FF,FF,0E,01,Comments: set GRPFREQ=01, NOP for 2nd device
0,00,00,0C,80
1,82,00,82,00,Comments: set IREFALL=00
0,00,00,0E,01
Sequence:01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,3
1,32,33,34,35,36,37,38
3. The Fm+ development board as SPI master drives two PCA9745B demo boards in
daisy-chain as shown in the
Fig 10
. After open the “SPI daisy chain demo with two
PCA9745B devices” text file, the “NXP Fm+ Board GUI” in Expert mode screen will
be displayed all messages, then click the ‘Send All’ button, all the valid messages on
the screen will be sent in the order of the row number (Msg #). The action will be
performed one time.
Fig 10. Two PCA9745B demo boards connecting to the Fm+ development board
