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
15 of 28
2000,0E,00,Comments: set GRPFREQ=00
0,0C,40
0,0C,80,Comments: set GRPPWM=80
0,0E,00
2000,0E,01,Comments: set GRPFREQ=01
0,0C,80
0,0C,A0,Comments: set GRPPWM=A0
0,0E,01
2000,0E,02,Comments: set GRPFREQ=02
0,0C,A0
0,0C,C0,Comments: set GRPPWM=C0
0,0E,02
2000,0E,03,Comments: set GRPFREQ=03
0,0C,C0
0,82,00,Comments: write IREFALL = 00h
0,0E,03
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
3. After open the “PCA9745B WHT_RGB LEDs blinking demo” text file, the WIN-
I2CUSB GUI in Expert mode screen will be displayed as shown in
Fig 7
.
4. 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.
5. User can program the MOSI (Master Out Slave In) Data to PCA9745B, the first 7-bit
is to access the address of register and 8
th
bit to indicate Read (1) or Write (0), the
next byte is data to read or write.
