Educational DSP, LLC



Custom Work


Educational DSP's DSK_COMM4 communications daughtercard provides a variety of communications resources for the Texas Instruments TMS320C6211/6711/6713/6416T/5510/5416 DSP Starter Kits (DSKs). The base configuration of the daughtercard has two (2) RS-232 UART channels, a USB interface capability of up to 1MB/s, eight (8) digital outputs, and eight (8) digital inputs. Optionally, two additional UART channels can be configured for either RS-232, RS-422, or a 802.15.4 wireless radio module. The daughtercard can also be purchased with pass-through connectors to permit stacking other daughtercards.

The DSK_COMM4 daughtercard is designed to be easy to configure yet extremely flexible. With the exception of the address decoding jumpers, all configuration is done in software. The configuration options include;

  • Routing of the four UART interrupts and the USB interrupt to any DSK interrupt

  • Controlling the interrupt polarity

  • Configuring the DSK interrupt drivers to be open-drain or totem-pole

  • Jumpers to set the memory space and address to minimize the possibilities of address conflicts

The UART channels all provide 16550-class capabilities. The RS-232 channels are full DTE implementations capable of operating at up to 230.4kbaud. The RS-422 channels are full-duplex implementations capable of operating at up to 921.6kbaud. The wireless radio option uses the Digi (MaxStream) XBee 2.4GHz radio module that supports the 802.15.4 wireless communication protocol.

Click for full-resolution image.

DSK_COMM4 Prototype Daughtercard with RS-422 and XBee Options

A complete Code Composer Studio (CCS) project is available for each supported DSK. The project includes a detailed header file specific to the DSK to make coding easier. The software in the project performs loopback testing of the base RS-232 channels, the optional UART channels, the USB interface, and digital input/output. This provides an excellent base for developing user applications.

Click for full-resolution image.          

DSK_COMM4 Prototype Daughtercard shown mounted on TMS320C6713 DSK with HPI daughtercard



DSK_COMM4 Daughtercard Documentation and Downloads:
        Daughtercard Documentation Rev B.1
        Daughtercard Documentation Rev A-B.0

     Major Component Datasheet Links
        Texas Instruments TL16C554 Quad UART
           Datasheet (local copy)
           Datasheet (local copy)
           USB Drivers Installer (local copy)
        Digi (MaxStream) XBee Series 1 Radio Module
           Manual (local copy)

Copyright 2001-2016 Educational DSP, LLC