NXP Semiconductors PCA9846PW-ARD, Руководство пользователя, Страница: 22 / 27

NXP Semiconductors
UM11759
PCA9846PW-ARD evaluation board
Figure 16. Graphical interface at start-up (Settings tab activated by default)
The second tab is Device Control. Click on this tab and a new window appears. See
Figure 17 . The user can select the VDD1 power supply voltage from the drop-down box
at the center of the screen. Table 2 details the available voltages for VDD1.
At the bottom side of the window is a chain of blocks connected with bidirectional arrows
indicating the data flow through the chain. To write data in the EEPROM memory, the
user must complete the following steps:
• Write any ASCII character in the Input Data box.
•
Select the desired channel to use for data write.
• Select the corresponding EEPROM box. The selected box will change to red.
• Click on Send Data.
When the Send Data button is pressed, any alphanumerical value in the Input Data box
is sent through the PCA9846A I
2
C switch and stored in the selected EEPROM memory.
The stored information is displayed in the Output Data box.
If the Input Data box is empty (no character or break/pause typed in the box), when the
Send Data button is pressed, a pop-up window with the message "Input Data should not
be Null or Empty” appears on the screen. Click OK to close the pop-up window.
UM11759 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 1 — 6 June 2022
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