STEVAL-ICB004V1 STMicroelectronics, STEVAL-ICB004V1 Datasheet - Page 23

• Manufacturer Part Number: STEVAL-ICB004V1
• Description: BOARD EVAL TOUCH SCREEN STMPE811
• Manufacturer: STMicroelectronics
• Series: S-Touch™r

Specifications of STEVAL-ICB004V1

• Sensor Type: Touch Screen
• Interface: I²C, SPI
• Voltage - Supply: 5V
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: STMPE811
• Interface Type: SPI, I2C, USB
• Operating Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STMPE811
• Other names: 497-10336

UM0772
Note:
Figure 21. SPI pin interface in PC GUI
In this case, only GPIO1 and GPIO2 are unavailable in the default hardware configuration.
R3 and R5 should be de-soldered if using SPI GPIO1 and SPI GPIO2.
●
Figure 22. Setting of SPI parameters
–
SPI header settings:
–
–
Follow the instructions in the I
settings.
Once the GPIO settings are complete, the daughter board can be connected to
the demonstration board and it can be assumed that the user has correctly
performed the setting of the daughter board control and status lines. Before one
can use the SPI communication, some parameters, as shown in
be defined.
Parameters include selection of CPHA, CPOL, and baud rate prescaler selection.
(By default, the most significant bit is put first). Once the selection is complete,
click the “Write” button. This sets the SPI interface and prepares the system to
read or write the data from the SPI interface-based daughter board connected to
the demonstration board. Once this is complete, the control settings part is frozen
and the “Write” button becomes a “Reset” button, the purpose of which is to reset
the SPI settings.
Doc ID 16158 Rev 3
2
C GPIO setting section to perform the GPIO
Running the demonstration
Figure
22, should
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