www.ti.comTroubleshooting

Table 15. Troubleshooting with DM6467 DaVinci HD EVM

Symptom

Cause

Solution

 

 

 

No serial communication

Wrong serial port

Set terminal program to 115200 baud, 8 bit data, no parity, 1 stop bit. Check

 

settings

that COM port is available in the Windows Device Manager and is not being

 

 

used by another program.

 

 

 

 

Wrong cable type

Use a null MODEM 9-pin serial cable. Pins 2 and 3 at one end should be

 

 

wired to pins 3 and 2 at the other end.

 

 

 

Boot up process fails

No wired network

Connect Ethernet LAN cable to DaVinci HD EVM

 

connection

 

 

 

 

 

No FTP server available

Boot up arguments must specify the IP address of the computer that contains

 

 

the image file to be loaded. An FTP server program must be runnning on that

 

 

computer.

 

 

 

 

No Linux host available

A PC running the Linux O/S or a PC running the Windows O/S with a virtual

 

 

Linux O/S must be accessible on the LAN and provide a shared file system

 

 

for the boot process.

 

 

 

Table 16. Troubleshooting I2C Connections and Cascaded EVMs

Symptom

Cause

Solution

 

 

 

When PC USB (VCC application) is I2C master for TVP5158

 

 

 

USB: I2C Error Code 1

I2C bus master

Check that jumpers W3 and W4 are connected across pins 1-2 to select USB

error message.

jumpered incorrectly.

as I2C master.

 

 

 

When DSP video/audio driver is I2C master for TVP5158

 

 

 

I2C error messages

I2C bus master

Check that jumpers W3 and W4 are connected across pins 2-3 to select

from demo application.

jumpered incorrectly.

DaVinci HD EVM as I2C master.

 

 

 

When cascading two TVP5158EVMs together

 

 

 

 

I2C error messages

I2C bus master

The Stage 2 TVP5158EVM feeds cascaded video and audio data through

from demo application.

jumpered incorrectly.

connector J2 to connector J3 of the Stage 1 TVP5158EVM.

 

 

 

 

On the Stage 2 board, check that jumpers W2, W1, and W0 are connected

 

 

across pins 1-2, 1-2 and 2-3 (L, L, H) respectively, to specify slave address

 

 

0xB2.

 

 

On the Stage 2 board, check that jumpers W3 and W4 are both removed to

 

 

allow I2C to be mastered by the stage 1 board.

 

 

Also on the Stage 2 board, remove W7 and W8 to remove the second Audio

 

 

DAC from the I2C bus.

 

 

The Stage 1 TVP5158EVM can have I2C controlled by USB or the DaVinci

 

 

HD EVM.

 

 

Any changes to the above setup require that VCC be exited and restarted so

 

 

that the correct I2C slave address(es) can be selected.

 

 

 

SLEU108 –November 2009

TVP5158 Evaluation Module 35

Submit Documentation Feedback

 

Copyright © 2009, Texas Instruments Incorporated

Page 35
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Texas Instruments TVP5158 Troubleshooting with DM6467 DaVinci HD EVM, Troubleshooting I2C Connections and Cascaded EVMs

TVP5158 specifications

The Texas Instruments TVP5158 is a highly versatile and efficient video decoder designed for a range of video processing applications. It serves as an excellent solution for converting analog video signals into digital formats for further processing. The device is commonly utilized in surveillance systems, video conferencing equipment, and various multimedia applications where reliable and high-quality video output is necessary.

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