CY8CKIT-029 Cypress Semiconductor Corp, CY8CKIT-029 Datasheet - Page 37

• Manufacturer Part Number: CY8CKIT-029
• Description: KIT DEV PSOC3 LCD SEGMENT EXPAN
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ 3r

Specifications of CY8CKIT-029

• Main Purpose: Displays, LCD Display
• Embedded: Yes, MCU, 32-Bit
• Primary Attributes: 128 addressable segments
• Secondary Attributes: CD contains sample projects
• Description/function: Evaluation Kit
• Interface Type: USB
• Backlighting: No Backlighting
• Data Bus Width: 8 bit, 16 bit, 32 bit
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: 0 C
• Number Of Segments: 7, 14
• Operating Voltage: 2.5 V to 5.5 V
• Pixel Format: 8 x 16
• Product: Display Modules
• Software: Software Included
• Touch Panel: No Touch Panel
• For Use With/related Products: PSoC 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Utilized Ic / Part: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2993

Example Projects
Note Pin assignment in both example projects is according to Port A of the DVK. Open the example
project and change the pin assignment in PSoC Creator (in .cydwr file) for Port A' or port B according
to
Table
4-2. The pin assignment for example project 1 is shown in
Figure
5-25.
Figure 5-25. Pin Connection Mapping for Port A'
Note The pins for VR and the SW1 must be reassigned to any other free GPIO when using port A'
and port B. This is because P0_2 pin used in both example projects for VR and SW1, is used for
common lines. In addition, for the StopWatch example project, the port pin used for the switch SW1
has resistive pull up drive mode. This is because the switch SW1 is connected to the switch in the
CY8CKIT-001 DVK. The switch in the DVK is connected to GND when pressed; therefore, the drive
mode must be set to ‘Resistive Pull Up’. Write ‘1’ to the port pin in the firmware to make it work. The
following code indicates the location where you can set this according to the selection of port pin.
/* Write '1' to input switch port pin, P0.2 for enable resistive pull up
*/
CY_SET_REG8 (CYDEV_IO_PRT_PRT0_DR, 0x04);
To use P1_7, modify as shown here:
/* Write '1' to input switch port pin, P1.7 for enable resistive pull up
*/
CY_SET_REG8 (CYDEV_IO_PRT_PRT1_DR, 0x80);
CY8CKIT-029 PSoC LCD Segment Drive Expansion Board Kit Guide, Doc. # 001-55415 Rev. *B
37
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