Quantcast
Channel: Processors forum - Recent Threads
Viewing all 17527 articles
Browse latest View live

TDA2P-ABZ: TDIL use case or example for TDA2P

$
0
0

Part Number: TDA2P-ABZ

Hello everybody , 

please VSDK  does not support  TIDL  use case ( see my other post ) . 

coudl you help me on how to insert example and have something similar to TDA2  ? 

any instruction / example ? 

thank you 

regards

Carlo


AM5726: starting up AM5726

$
0
0

Part Number: AM5726

Hello,

I developed a circuit based on the TMDSEVM572X board. The processor used is the AM5726BABCX. As PMIC I use the TPS6590378ZWSR.

After switching on I see that the power sequence of the PMIC runs correctly. I can also measure the expected voltages. At the processor I can see that the warmreset signal toggles from low to high. However, it is so that it remains only for 470 ms on high and for 200 µs on low goes. All voltages are stable and doesn´t change their values.

I think the power consumption is very high with 4Watt..5Watt. The processor do nothing .. Is that normal?
Is that the right behavior if the processor does not find a boot medium?

There are a debug console available like at the processor AM355x?

best regards

CCS/TMS320C6657: Online resources for using CCS with TMS320C6657

$
0
0

Part Number: TMS320C6657

Tool/software: Code Composer Studio

Hello,

I was looking to use TMS320C6657 DSP for AEC. I am having issues using CCS to connect and run code to my EVMs. Is there any documentation available for the current software and hardware versions to help me interface with the EVM with CCS?

Thanks!

Adam

AM5728: AM5728x Mcasp DPLL_ABE clocking

$
0
0

Part Number: AM5728

Hi,

I'm trying to change the clock driving the McASP ports.  I've found the following note in the reference manual:

NOTE: The audio back end (ABE) module is not supported for this family of devices, but the ABE
name is still present in some clock or DPLL names.

I see lots of references to ABE, does that mean there is no ABE in the Sitara parts?  If so, from where does the McASP ports get their clock?

In the AM572x_prcm_config.gel, I see on line 759 some configuration of the ABE for the Mcasp ports:

// DPLL MULT
// Output = 451.584 MHz
// Provides enough headroom so the McASP can evenly divide this down
// to multiple different sampling rates as the module does not
// contain a multiplier.
CM_CLKSEL_DPLL(CM_CLKMODE_DPLL_ABE) = 0xC809;

The note here of 451.584 Mhz seems to match  what my MCASP clock is running at, but changing the values here and rerunning the gel file seems to have no impact.

Any ideas on how I can change the master clock for the MCASP ports?

Thanks...

Mike

RTOS/PROCESSOR-SDK-OMAPL138: stereo sound issues on L13x/C674x development board with MCASP_Audio_lcdkOMAPL138_c674xExampleProject

$
0
0

Part Number: PROCESSOR-SDK-OMAPL138

Tool/software: TI-RTOS

I'm using the MCASP_Audio_lcdkOMAPL138_c674xExampleProject to pass through and analyze audio on the L13x/C674x development board. When I connect a stereo signal to the input, I get both channels downmixed into the right channel on the output.

What can I check to debug this? Looking at the audioSample_io.c source, in Audio_echo_Task(), it's not clear what data in appBuf_ptr_rx->buf or appBuf_ptr_tx->buf is left channel and what data is right channel, so I can't track a test signal.

Linux/TDA2E: vision SDK 3.02 DRA72x use kernel_menuconfig set A15 freqency

$
0
0

art Number: TDA2E

Tool/software: Linux

Hi 

I try to use make kernel_menuconfig to set governors is Performance.

But I use omapconf show opp to check freqency is still 1000HZ.

System also show can not find scaling_governor file message.

Did I less some procedure or DRA72x  can not use kernel_menuconfig set A15  freqency?

thanks

Yumei

Linux/TDA2SG: Fast Boot (IPU2 frequency

$
0
0

Part Number: TDA2SG

Tool/software: Linux

Hi, all,

I use the SDK 3.0.5 and turn on the fast boot function in my TDA2x board.

I used the core-tex A15 u-boot to load the IPU/DSP firmware and boot them.

After the Linux kernel boot finished, I get the message

 2.713536 s:  ***** IPU2 Firmware build time 19:56:30 Jun 18 2019
 2.713688 s:  *** SYSTEM: CPU Frequency <ORG = 212800000 Hz>,<NEW = 16393 Hz>
 2.716891 s:  SYSTEM: System Common Init in progress !!!

The IPU2 frequency is too low, but the other core frequency the correct

 2.589123 s:  ***** DSP1 Firmware build time 19:54:43 Jun 18 2019
 2.589214 s:  *** SYSTEM: CPU Frequency <ORG = 600000000 Hz>, <NEW = 600000000 Hz>
 2.589489 s:  SYSTEM: System Common Init in progress !!!

If IPU2 firmware is load and boot from Linux, the frequency is

*** SYSTEM: CPU Frequency <ORG = 212800000 Hz>, <NEW = 212800000 Hz>

how can I change the IPU2 frequency  to correct setting?

RTOS/TDA2EXEVM: AVB surround view TX stream could not output via Ethernet port 1

$
0
0

Part Number: TDA2EXEVM

Tool/software: TI-RTOS

Hi Sir,

I am running "4CH AVB Capture + Surround View (DSPx) + AVB_TX/Display" use case with SDK 3.6 on TDA2x EVM,

I connected 4 AVB cameras to TDA2x EVM Ethernet port 1 wtih a 8 port switch,

I confirmed that HDMI can output surround view image on TV and I can get TX stream from Ethernet port 1 via switch.

Could I change the TX stream output port to "Ethernet port 2" ?

Thanks.

Ranny.


CCS/TMS320C6747: TMS320C6747

$
0
0

Part Number: TMS320C6747

Tool/software: Code Composer Studio

Hi,

We have purchased EVM Board of OMAP-L137/TMS320C6747 floating point starter kit.

The kit contains three CD/DVD

1) OMAP-L137/TMS320C6747 Demonstration version of MontaVista pro 5.0

includes Installers for ->  MV PRO 5.0 System Tools and Target File System

(DVD 1 includes Demonstration version of MontaVista pro 5.0

(DVD 2 includes OMAP L137 ARM/DSP installers //  XDC tools // DSP Code Gen tools......etc)

2)OMAP-L137/TMS320C6747 Platform CCS v3.3 IDE(DVD 3)

Now we are having CCS version V7.1.0  .If we want to continue with CCs v7.1.0 and  with both these installers (DVD 1 includes Demonstration version of MontaVista pro 5.0
(DVD 2 includes OMAP L137 ARM/DSP installers //  XDC tools // DSP Code Gen tools......etc) .

Q1) Will it work  with newer version or we have install only CCS V3.3?

Q2) For Windows platform of CCS which DVD 1 or DVD 2 we have to install.

Regards,

Ashrumochan

Linux/AM5718: Connection circuit example to VOUT1 output

$
0
0

Part Number: AM5718

Tool/software: Linux

Hi.

I connected VideoDAC as a circuit connected to the VOUT1 output of AM5718 and set it to output to analog RGB monitor.

The following is the video DAC connection circuit.

As shown in the reference thread, jitter occurs in HSYNC, and it is possible to observe 1 to 2 pixel variations
left and right on the connected analog monitor display.

Can I connect such a circuit to the AM5718's VOUT1 output?

Also, VIDEO1_PLL is used as a reference clock source.
Is it possible to reduce jitter by changing the internal connection to use this HDMI_PLL?

Regards,
Koji

66AK2H06: device power supplies

$
0
0

Part Number: 66AK2H06

Hi,

I have a customer who is designing 66AK2H06 custom board.
He is using EVM2K as a reference (see below power block).


Q1) There are two UCD74120 ICs used for CVDD (ARM and DSP AVS power supplies).
I guess this is only because one UCD74120 is not enough to supply CVDD.
Correct?

Q2) UCD7242 has two channels and each one is used for CVDDD0V95(= CVDD1 for DSP) and CVDDA0V95(=CVDD1T for ARM), respectively.
I understood each channel can supply up to 10A based on UCD7242 datasheet.
http://www.ti.com/product/UCD7242
Why two channels are needed to provide CVDD1 and CVDD1T?
Using only one channel for both power rails may cause an issue?

Thanks and regards,
Koichiro Tashiro

Linux/DRA77P: UART2 not working

$
0
0

Part Number: DRA77P

Tool/software: Linux

Hi,

In our custom board, we had implemented the uart2 connection for our GNSS module. We were using the ti_processor_sdk_linux_automotive_dra7xx-evm_5_00_00_01 with kernel version 4.4,  on using cat /dev/ttyS1 we were able to get the GPS coordinates. The change we made was in the dra76-evm.dts where uart2 status was enabled.

We have now ported to latest kernel version 4.14, where we are unable to get the gps coordinates from the uart2 (even with same configuration of dt as prev. version). No values are received at the uart2 (ttyS1).

We have used the same pin mux configuration which was used in 4.4.

Are there any further changes required ?

The dt configuration we used were

uart2{

status="okay";

} ;

Regards,

Padmesh

TMS320DM8168: DM8168

$
0
0

Part Number: TMS320DM8168

Hi,

I am connecting the I2C0 line (SCL,SDA) of DM8168 to 3 PCM3168 Audio codec to configure them..Can i connect them directly or should i use a 1:3 I2C BUFFER?

Regards,

Shyama

TMS320DM8168: DM8168

$
0
0

Part Number: TMS320DM8168

Hi,

I am connecting the MDIO and MCLK line of DM8168 to 2 Ethernet PHY ..Can i connect them directly or should i use a 1:2 I2C BUFFER?

Regards,

Shyama

Linux/EVMK2H: EVMK2H reset fail when using "mpmcl reset dsp0"

$
0
0

Part Number: EVMK2H

Tool/software: Linux

Hi, everybody

I run dsp code on dsp0 on EVMK2H,using command line to reset ,load and run like below,

 

mpmcl reset dsp0

mpmcl load dsp0  test.out

mpmcl run dsp0

 

It is OK  in most cases. but sometime it reset fail like below.


But when I turn off power of EVMK2H, and turn on again .It run OK and  reset success.

I don't know why reset failed sometime.Do someone know about that?Or have any clue or tips to debug ?

 

 

Thanks

Best Regards

WD



TMS320C6678: Which port to be used for analog video interface with dsp

$
0
0

Part Number: TMS320C6678

Hello,

We are planning to design and develop h264 or even h265 video compression module using tms320c6678. I did not find any development board of this dsp which is completely for video development, so that we can get an idea of how we can connect analog video decoders to the dsp.

Therefore, i want to ask this question in this forum that how should be the interface of video decoder which will be of 10 bit or even more with the dsp mentioned above. Which port or interface is best to connect with decoder. Any suggestion will be more than just welcome.

Aamir

Linux/AM3354: EMU1 output a 1MHz square wave when device powerup.

$
0
0

Part Number: AM3354

Tool/software: Linux

We have a design with am3354 and use gpio3_8(JTAG_EMU1) to work as gpio. 

But we found that sometimes GPIO3_8 output a 1MHz square wave at power on boot stage.   Do you have any suggestion about how to fix this issue?

The schematic and waveform are shown below: 

Linux/AM3359: IrDA FIR support needed

$
0
0

Part Number: AM3359

Tool/software: Linux

Hi,

we are using IrDA/SIR communication between two AM335x boards running Linux in our machines. Now we are considering upgrading towards IrDA/FIR mode.

Does anybody use AM335x CPUs with IrDA FIR mode (4Mbit/s)? We are aware that this requires a special FIR kernel driver. Does anybody have such a driver or know of its existance?

Matthias

AM3352: About VBUS filter on AM3352.

$
0
0

Part Number: AM3352

Hello,

Regarding to VBUS filter constants on AM3352, my customer is asking some question.

(Question)

1)According to EVM(TMDSSK3358), register and capacitor value on VBUS filter are 1.2Kohm(R134)/

0.1uF(C213). How much resistor and capacitor value can these configure as maximum?

2)It seems that Zener diode can place on VBUS filter.

Is it available to reduce ringing or noise?

 

  

 

Regards,

Tao 2199

Linux/TDA2PXEVM: [QT] How to upgrade QT to support IVI-shell

$
0
0

Part Number: TDA2PXEVM

Tool/software: Linux

Hello:

Background

  We'are working on VisionSDK 3.05, for the QT environment we copy from PSDKLA 3.4.3 which the QT version is 5.6.

To support the full-screen and position control on QT application, we should select the ivi-shell in weston which require the QT version is newer than 5.7

we saw the PSDKLA 5.00 support the QT 5.9

PSDKLA 5.00

http://processors.wiki.ti.com/index.php?title=Processor_SDK_Linux_Automotive_Release_Notes

ComponentVersion
Linux Kernel4.14.79+ (2018 LTS)
U-Boot2018.01+
Yocto Project2.4 (Rocko)
Linaro Toolchain (gcc)7.2.1 hard-float
Qt5.9.7
Wayland2.0
GStreamer1.12

PSDKLA 3.04

processors.wiki.ti.com/index.php

ComponentVersion
Linux Kernel4.4.84+ (2016 LTS)
U-Boot2016.11+
Yocto Project2.1 (Krogoth)
Linaro Toolchain (gcc)5.3 2016.02 hard-float
Qt5.6
Wayland1.9
GStreamer1.6

Question

  1. Can we directly copy the QT library from PSDLA 5.0 to  VisionSDK 3.5
  2. If not, how can we upgrade QT on visionsdk to 5.9.7?

Thanks.

 

Viewing all 17527 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>