User's Manual

Hardware Setup

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5.2.1 Additional Setup when DSP Processes Video Only

In this configuration, digital video goes to the DaVinci HD EVM. Digital I2S audio goes to the

TLV320DAC32 Audio DAC on the TVP5158EVM. Stereo audio output can then be taken from the

TVP5158EVM headphone jack. Make the following additional connections:

1. Samtec HQCD ribbon cable from TVP5158EVM DaVinci Video connector to the DaVinci HD EVM

DC_P2 Video Expansion connector.

2. TVP5158EVM headphone jack to audio amplifier/speakers or headphones

5.2.2 Additional Setup When DSP Processes Video and Audio

CAUTION

A modification to both the TVP5158EVM and the DaVinci HD EVM must be

made if I2S digital audio is to be processed by the DM6467 DSP (see

Section 5.2.2.1).

In this configuration, digital video and digital audio go to the DaVinci HD EVM. For the digital audio

connection, a hardware modification is required as described in Section 5.2.2.1. The stereo audio is then

output from the DaVinci HD EVM headphone jack. After making the hardware modification, make the

following additional connections:

1. Samtec HQCD ribbon cable from TVP5158EVM DaVinci Video connector to the DaVinci HD EVM

DC_P2 Video Expansion connector

2. Samtec HQCD ribbon cable from TVP5158EVM DaVinci Audio connector to DaVinci HD EVM DC_P3

I/O Expansion connector

3. DaVinci HD EVM headphone jack to audio amplifier/speakers or headphones

5.2.2.1 Hardware Modification for I2S Audio to DM6467 DSP

Three 0-Ω resistors must be removed from the TVP5158EVM and three 0-Ω resistors must be removed

from the DaVinci HD EVM according to Table 3.

Table 3. Hardware Modifcation for I2S Audio to DM6467

Remove From TVP5158EVM Remove From DaVinci HD EVM

R42 SD_M R13 MCASP0_ACLKR

R98 MCASP0_EN R17 MCASP0_AFSR

R99 AUDIO_CLK_EN R31 MCASP0_AXR1

NOTE: After this modification has been made, the SD_M I2S digital audio output from TVP5158 will

no longer be available. The SD_R output must be used and W9 must be jumpered 2-3. If

headphone output from the TVP5158EVM is to be tested using the audio mixer (SD_M I2S

output), 0-ohm resistor R42 must be reinstalled and W9 must be jumpered 1-2.

5.2.3 Jumper Settings with DaVinci HD EVM

When the DaVinci HD EVM is used, the video and/or audio driver software can be set to control the entire

system, or can be set to skip I2C programming of the TVP5158. In the latter case, the PC USB interface

and the Video Control Center application software are used to initialize and experiment with TVP5158

TVP5158 Evaluation Module SLEU108–November 2009

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