CY8CKIT-030 Cypress Semiconductor Corp, CY8CKIT-030 Datasheet - Page 33

• Manufacturer Part Number: CY8CKIT-030
• Description: BOARD EVAL PSOC 3
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ 3r
• Type: MCUr

Specifications of CY8CKIT-030

• Contents: Board, Cables, Display, Software
• Processor To Be Evaluated: CY8C38 Family
• Processor Series: CY8C38
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.8 V to 5.5 V
• Core Architecture: 8051
• Silicon Core Number: CY8C38xxx
• Silicon Family Name: PSoC
• Kit Contents: Board, LCD, Cable, CD, Guide
• Features: High Precision Analog
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PSoC® 3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-3090

5.5
5.5.1
5.5.2
5.5.3
CY8CKIT-030 PSoC 3 Development Kit Guide, Doc. # 001-61038 Rev. **
ADC and DMA-DAC Example
Project Description
This project demonstrates sine wave generation by using an 8-bit DAC and DMA. The sine wave
period is based on the current value of the ADC value of the potentiometer.
The firmware reads the voltage output by the board potentiometer and displays the raw counts on
the board character LCD display. An 8-bit DAC outputs a table generated sine wave to an LED using
DMA at a frequency proportional to the ADC count.
Hardware Connections
For this example, the character LCD must be installed on P8. The example uses the potentiometer;
therefore, the jumper POT_PWR should also be in place. This jumper connects the potentiometer to
the Vdda.
Verify Output
Build, program the device, and press the Reset button on the PSoC 3 Development Kit to see the
ADC output displayed on the LCD. LED4 is an AC signal output whose period is based on the ADC.
Turning the potentiometer results in LCD value change. This also results in change in the period of
the sine wave fed into LED4, which can also be observed.
Figure 5-9. ADC Output
Example Projects
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