Digilent 410-286P Manual de usuario descargar pdf (Pagina 2)

PmodALS™ Reference Manual

Other product and company names mentioned may be trademarks of their respective owners.

Page 2 of 2

Table 1. Connector J1- Pin Descriptions as labeled on the Pmod.

The PmodALS reports to the host board when the ADC081S021 is placed in normal mode by bringing the CS pin

low, and delivers a single reading in 16 SCLK clock cycles. The PmodALS requires the frequency of the SCLK to be

between 1 MHz and 4 MHz. The bits of information, placed on the falling edge of the SCLK and valid on the

subsequent rising edge of SCLK, consist of three leading zeroes, the eight bits of information with the MSB first,

and four trailing zeroes.

Any external power applied to the PmodALS must be within 2.7V and 5.25V; however, it is recommended that

Pmod is operated at 3.3V.

3 Physical Dimensions

The pins on the pin header are spaced 100 mil apart. The PCB is 0.8 inches long on the sides parallel to the pins on

the pin header and 0.8 inches long on the sides perpendicular to the pin header.

4 Additional Information

The schematics of the PmodALS are available for download from the product page. Additional information about

the ADC, including communication modes and specific timings of the chip, can be found by checking out its

datasheet available from Texas Instruments. Similarly, the datasheet for the ambient light sensor can be found on

the website for Vishay.

More specific information about how to use the PmodALS can be found by checking out our user guide. Example

code demonstrating how to get information from the PmodALS can be found here.

If you have any questions or comments about the PmodALS, feel free to post them under the appropriate section

("Add-on Boards") of the Digilent Forum.

Signal

Description

Chip Select

Not Connected

SDO

Master-In-Slave-Out

SCK

Serial Clock

GND

Power Supply Ground

VCC

Power Supply

1 2

Sin comentarios

Digilent 410-286P Manual de usuario Pagina 2