Working with OMAP3530 Mega Codec Server

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^ Up to main OMAP35x DVEVM Getting Started Guide Table of Contents

This page guides the user on the build procedure for using the OMAP3525/3530 Mega Codec Server (ms1omap3530) with OMAP3x DVSDK 3.01 as well as modifications necessary to run the DVSDK demo executables with the mega codec server

Building the Mega Codec Server with OMAP3x DVSDK 3.01

The OMAP3x Mega Codec Server is available on the Linux OMAP3x DVSDK 3.01.<xx>.<yy> release page under collaterals as ms1omap3530_setupLinux_1_00_00-prebuilt-dvsdk3.01.<xx>.<yy>.bin. Download the linux executable to your linux machine.

Install the mega codec server linux executable under the OMAP3525/3530 3.01.<xx>.<yy> DVSDK installation. While installing, it will prompt for license accepatance. Kindly read through the license before accepting and proceeding with the installation

Edit the Rules.make file to modify the codec server install path as given below and save the file

Replace 
CODEC_INSTALL_DIR=$(DVSDK_INSTALL_DIR)/cs1omap3530_1_01_00
with
CODEC_INSTALL_DIR=$(DVSDK_INSTALL_DIR)/ms1omap3530_1_00_00

Perform clean build for the codecs as well as the DMAI, DVSDK demos and DVTB after modifying the Rules.make

host $ make codecs_clean
host $ make codecs
host $ make clean
host $ make all

Install the newly built codec server libraries as well the DVSDK demo executables in your target file system

host $ make install

Executing the DVSDK demos with Mega Codec Server executable

The MEM variable in the bootargs needs to be modified to use 99M instead of 100M. This is because the OMAP3525/3530 Mega Codec Server code and data LPDDR memory requirements is 4MB as compared to the OMAP3530/3530 TSPA codec server's 3MB.

For example in case of boot from NFS,
setenv bootargs 'mem=99M console=ttyS0,115200n8 noinitrd ip=dhcp rw root=/dev/nfs
                 nfsroot=<nfsserver_ip>:/home/<useracct>/workdir/filesys,nolock 
                 mpurate=600 omapfb.rotate=1 omapfb.vrfb=y'
[NOTE: Ensure that the above command is given in a single line]

Edit the loadmodules.sh under <your_target_file_system>/opt/dvsdk/omap3530 to use the addresses given below and save the file

REPLACE
insmod cmemk.ko phys_start=0x86400000 phys_end=0x87300000 pools=1x3000000,1x1429440,6x1048576,4x829440,1x327680,1x256000,7x131072,20x4096 allowOverlap=1
WITH
insmod cmemk.ko phys_start=0x86300000 phys_end=0x87200000 pools=1x3000000,1x1429440,6x1048576,4x829440,1x327680,1x256000,7x131072,20x4096 allowOverlap=1

Boot/Reboot the OMAP3525/3530 EVM

Execute the DVSDK demos

For technical support on OMAP please post your questions on The OMAP Forum. Please post only comments about the article Working with OMAP3530 Mega Codec Server here.