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CRD42528-2 Datasheet(PDF) 5 Page - Cirrus Logic |
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CRD42528-2 Datasheet(HTML) 5 Page - Cirrus Logic |
5 / 50 page 5 1. QUICK START A PC with an ECP parallel port, a stereo analog audio source, and powered speakers are required to use the CRD42528 in the mode specified in this Quick Start. 1) Install the drivers supplied with the board on the PC. Refer to “UDSP Schematics” on page 37 for details on installing the drivers. 2) Connect the supplied parallel port cable to J46 on the UDSP MainBoard (marked P PORT) and to the computer’s ECP parallel port. 3) Connect the analog output from an audio source to AIO7-8 (Left and Right Inputs) The input channels are mapped as follows: - AIO8 - Left - AIO7 - Right - AIO6 - Left Surround - AIO5 - Right Surround - AIO4 - Center - AIO3 - Subwoofer / Low Frequency Effects (LFE) - AIO2 - Surround Back Left - AIO1 - Surround Back Right 4) Connect powered speakers to AIO15-16. The output channels are mapped as follows (more speakers can be connected to the line level outputs as required by each application): - AIO16 - Left - AIO15 - Right - AIO14 - Left Surround - AIO13 - Right Surround - AIO12 - Center - AIO11 - Subwoofer or Low Frequency Ef- fects (LFE) - AIO10 - Surround Back Left or Lt - AIO9 - Surround Back Right or Rt 5) Connect the supplied power supply to the power connector on the board and to an appropriate power outlet. 6) Verify that LEDs D1, D7, D9, and D11 on the UDSP board are lit. LED D2 will flash to indicate that the PLD on the UDSP is functional. 7) Open a DOS window and navigate to the C:\CS49300\CRD42528\Configs directory. 8) Type in “setpld -r 99” on the DOS prompt. (This reads the PLD version register and verifies that the PC can communicate with the board). If the driver generates the error message “!!! Board does not appear to be connected !!!”, then your parallel port address may not be 0x378 or your port is not ECP capable. If your parallel port address is not 0x378, depress the reset switch S3 and type in “setpld -r 99 -p3bc” or “setpld -r 99 -p278” to communicate using a different parallel port address. 9) Verify that LED D1 (marked ERR) has turned OFF, indicating that the driver has successfully communicated with the board. 10) If the above steps give an error, refer to “UDSP Schematics” on page 37 and verify that the drivers and PC have been set up as described (and that the parallel port address is correct / set to ECP mode). 11) If the above steps give the expected results, type in “ a n a log_in _96k H z ” , “ a n a log_ in _96 kH z - p3 bc ” , or “analog_in_96kHz -p278” (depending on your parallel port address) at the DOS prompt. This batch file will configure the PLD, boot the DSP, and configure the CS42528 for 8 channel analog processing at 96 kHz. 12) The audio data on the Left and Right Input connectors (AIO7-8) should now be heard on the output. 13) The batch files use various files to configure the software, board, and the DSP code. Each batch |
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Similar Description - CRD42528-2 |
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