Difference between OMAP5432 and Jacinto DRA74xx

Hello Javad,

Yes, you are right.

DRA7xx devices are based on OMAP5. The main difference between those devices is that DRA7xx is designed for automotive applications. Therefore this deice supports specific automotive interfaces and requirements. 

The DRA75x/DRA74x is a high-performance, infotainment application device, based on enhanced
OMAP architecture integrated on a 28-nm technology.
• The architecture is designed for advanced graphical HMI and Navigation, Digital and Analog Radio,
Rear Seat Entertainment and Multimedia playback, providing Advanced Driver Assistance integration
capabilities with Video analytics support, and best-in-class CPU performance, video, image, and
graphics processing sufficient to support, among others:
– Streaming video up to full high definition (Full-HD) (1920×1080p, 60 fps)
– 2-dimensional (2D) and 3-dimensional (3D) graphics and composition
– Decode of digital radio standards (DAB, HD RadioTM), and analog AM/FM/RDS radio
– Efficient web browsing

You can see the differences between OMAP5432 and DRA7xx as you compare device's block diagrams, presented in TRM books. See figure Figure 1-2. DRA75x/DRA74x Block Diagram in DRA7xx TRM and Figure 1-2. OMAP5430 Block Diagram in OMAP543x TRM.

Yes, you can use code and topics discussed in OMAP5432 EVM forum for DRA7xx EVM. However you must have in mind, that DRA7xx does not support some interfaces available in OMAP5.

The Linux release for DRA7xx is DRA7xx GLSDK 6.04.00.02. You can read more from Release Notes - http://processors.wiki.ti.com/index.php/DRA7xx_GLSDK_6.04.00.02_Release_Notes

The J6 Android Kitkat MR1 June release you can obtain by this link http://omapedia.org/wiki/6AK.1.1_Release_Notes

Information about sys/bios you can find in:

http://downloads.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/sysbios/6_33_01_25/exports/bios_6_33_01_25/docs/Bios_Getting_Started_Guide.pdf

http://downloads.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/bios/sysbios/6_33_04_39/exports/bios_6_33_04_39/Bios_6_33_04_39_release_notes.html

e2e RTOS forum http://e2e.ti.com/support/embedded/tirtos/default.aspx

Best regards,

Yanko

Hello Yanko,

Thank you. That was very useful.

Where can I find any information on how to use the 4 tuners in the J6?

We are using Linux for the front HMI and Android (in LXC) for rear seat infotainment.

I assume we will use sys/bios on the M4s and the DSP. I don't mind which of these various OSs control the tuners since they will all communicate with each other through sockets or other IPC.

Thank you,

Javad

Hello Javad,

Do you have in mined the tuners in the figure below:

If yes, you can find more information in section 24.6 Multichannel Audio Serial Port.

McASP has drivers in Linux and Android Kernels. See the patches in Omapzoom - http://review.omapzoom.org/#/q/status:open,p,002ce4720000611e

See Audio: HostlessTrack: Add IPC Audio.

Best regards,

Yanko