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Linux/AM3358: remoteproc remoteproc0: Direct firmware load for /tmp/PRU_LED1.out failed with error -2

March 15, 2019, 3:12 am
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Part Number:AM3358

Tool/software: Linux

I'm building custom zImage for AM335x SoC using buildroot... The board is Beagle Bone Black compatible... I'm trying to add PRUSS support. Now I'm stuck at starting the PRU cores.

echo 'start' > /sys/class/remoteproc/remoteproc0/state returns:

[  348.676722] remoteproc remoteproc0: Direct firmware load for /tmp/PRU_LED1.out failed with error -2
[  348.686396] remoteproc remoteproc0: request_firmware failed: -2
[  348.692661] remoteproc remoteproc0: Boot failed: -2

My device tree is attached to the post. I also tried to use am335x-boneblack-pru-adc.dtb with no luck. What can be the problem?

(Please visit the site to view this file)

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TMS320F28379D: SPIA MISO pin GPIO17 is not found on hardware schematic of TMS320F28379D launchpad. Probably it is hard wired to CAN transceiver. Other than changing SPI port, what are the options available?

March 15, 2019, 3:13 am
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Part Number:TMS320F28379D

Hi E2E team,

I am using an SPI slave device, I need to connect SPI MISO pin to launchpad. I am trying with SPI loopback's InitSPIGPIO() setting,

void InitSpiaGpio()
{

   EALLOW;

/* Enable internal pull-up for the selected pins */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0;   // Enable pull-up on GPIO16 (SPISIMOA)
//  GpioCtrlRegs.GPAPUD.bit.GPIO5 = 0;    // Enable pull-up on GPIO5 (SPISIMOA)
    GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0;   // Enable pull-up on GPIO17 (SPISOMIA)
//  GpioCtrlRegs.GPAPUD.bit.GPIO3 = 0;    // Enable pull-up on GPIO3 (SPISOMIA)
    GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0;   // Enable pull-up on GPIO18 (SPICLKA)
    GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0;   // Enable pull-up on GPIO19 (SPISTEA)

But GPIO17 is not available with an easy connection through Jumper. 

What are the options available other than changing SPI port?

Thanks,

Akshay

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66AK2H12: XMC MPAX setting

March 15, 2019, 3:21 am
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Part Number:66AK2H12

Hi Champs,

We  need use inside of C66 core XMC Mpax address extension function on the ARM core.

because, we would like to set C66 core program to difference memory space between physical and logic address.

physical : 0x0_B800_0000

logic     :  0x6000_0000

However, according to this Table 8-1, it is not allow to from ARM  to the XMC register.

We need set XMC-MPAX physical/logic exchange before executing C66x core program.

Do you have any idea ?

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IWR1642BOOST: demo0005-mmwave-sdk-16xx build broken

March 15, 2019, 3:22 am
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Part Number:IWR1642BOOST

Windows 10, mmwave industrial tool box 3.2.0, mmwave-sdk-2.1.00.04

When I try to build the mmw_dss_16xx, the build fails with the following errors

line 793: Identifier  "MMWAVE_L3RAM_NUM_BANK" is undefined

line 793: Identifier  "MMWAVE_L3RAM_SHMEM_BANK_SIZE" is undefined

Could you suggest what needs to be done

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LP8860-Q1: When selecting Ver.B

March 15, 2019, 3:22 am
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Part Number:LP8860-Q1

Hi All,

I chose Ver.B because it is 3.3V at a frequency of 300kHz.

But I do not use VSYNC.

In this case, is the LED lit if PWM is low ?

Best Regards,

Koji Hayashi

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CC2564C: CC2564C : Does assisted HFP mode support multiple NBS at the same time ?

March 15, 2019, 3:25 am
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Part Number:CC2564C

Hello

I have a use case where the product using the CC2564C chip should get audio calls from a smartphone and be able to play it internally or send it to an external device (ie : BT speaker).

In the documentation, I've seen this line :

"One WBS connection at a time is supported, and WBS and NBS connections cannot be used simultaneously in this mode of operation."

From what I'm understanding, two NBS connections may be possible but as it's not explicitly confirmed in the text, I prefer to ask confirmation here.

Thank you in advance for your answer.

Regards

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Compiler/AM6548: Does gcc support Cortex-R5?

March 15, 2019, 3:28 am
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Part Number:AM6548

Tool/software: TI C/C++ Compiler

According to some documentation that I have seen, it seems that the gcc compiler does support the Cortex-R5 processor. We are considering switching from the TI C Compiler to gcc and, in order to evaluate this option, I would like to bring the question to the experts. Does gcc support the Cortex-R5 processor? Do you recommend the use of the gcc compiler with the Cortex-R5 processor or, on the contrary, do you see any drawback about using it?

Thanks a lot for your support.

Best regards,

Ismael

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TPS2543: Start-up

March 15, 2019, 3:32 am
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Part Number:TPS2543

Hi Team,

My customer have a plan to connect Host to EN, CTL1-3 and ILIM_SEL pins of TPS2543 directly. 

During start-up of system, Host's output may unstable less than 3.3V(=Vcc of host).

In this case, is there any concern of TPS2543? Do they need to add pull-up/down resistors?

Regards,

Kotaro Yamashita 

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LDC1614: Inductance Shift

March 15, 2019, 3:36 am
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Part Number:LDC1614

Dear Clancy and Bala

By looking at the GUI, why is it inductance will shift even my target is fix?

Please see figure and short video clip below.

(Please visit the site to view this video)

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TYPE C TO HDMI

March 15, 2019, 3:36 am
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Hello, do you have a type c to HDMI plan?TI has TYPE C to which video format chip?

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RTOS/TDA2P-ACD: Camera flip and mirror support

March 15, 2019, 3:39 am
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Part Number:TDA2P-ACD

Tool/software: TI-RTOS

Hello,

I am using Processor SDK 03.05.00.00

I could find a relevant thread for my issue that it if there is any support on flipping and mirroring the captured frames. Link for the same is given below:

Is the support added in the Processor SDK 03.05 version ? If so, how can this be done ?

Regards,

Amol

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CC2630: CC2630：Questions about CC2630 electrostatic protection;

March 15, 2019, 3:43 am
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Part Number:CC2630

When using CC2630 do the work card, work card and sweater friction, the lead is affected by ESD, appear the phenomenon of crash, what good method is there?The ESD protection device PESDUC2FD5VB was added on the pin.

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Linux/TAS2557: TAS2557: TAS2557 Playback at 16kHz

March 15, 2019, 3:43 am
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Part Number:TAS2557

Tool/software: Linux

Hi, 

could you help me to use  TAS2557 for use at 16kHz? 

I use ASI_1 as i2s master 32bit/ch freq  16kHz , but the audio is not good...

if i use 48kHz it works well

thanks

Simone

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CCS/TMS320F28379D: DCL C200 motorware

March 15, 2019, 3:47 am
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Part Number:TMS320F28379D

Tool/software: Code Composer Studio

Hello everyone, I have a school project where i need to control the speed of a DC motor using a PID and PWM dutycycle. I need to read the speed of this motor using ADC module.


so i used a C2000 motorware example for PID, but unfortunately this example was for F28069M (I'm using F28379D). So i went to change the registers on it, but i have some questions about this example : 

1- why did they configure 2 GPIOs in this program as output, don't we have one output which is PWM output and one input which is ADC ? 

-----------------------------------------------------------------------------------
/* configure GPIO */
InitGpio(); // [F2806x_Gpio.c]
EALLOW;
GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0; // GPIO34 = I/O pin
GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1; // GPIO34 = output
GpioDataRegs.GPBSET.bit.GPIO34 = 1; // GPIO34 = 1
GpioCtrlRegs.GPBMUX1.bit.GPIO39 = 0; // GPIO39 = I/O pin
GpioCtrlRegs.GPBDIR.bit.GPIO39 = 1; // GPIO39 = output
GpioDataRegs.GPBCLEAR.bit.GPIO39 = 1; // GPIO39 = 0
EDIS;
-------------------------------------------------------------------------------------

2- same in ADC configuration there are using 2 SOC channels (SOC1 and SOC2) even like we just need one channel to read the feedback value. (and the same there used two ADCINT)

---------------------------------------------------------------------------------------------------------
AdcRegs.ADCSOC0CTL.bit.CHSEL = 0; // set SOC0 channel select to ADCINA0
AdcRegs.ADCSOC1CTL.bit.CHSEL = 8; // set SOC1 channel select to ADCINB0
-------------------------------------------------------------------------------------------------------------

3-  In pid parameters why do we need the external saturation variable lk ? 

hope someone can help understand this better.

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AM3352: NMI

March 15, 2019, 3:51 am
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Part Number:AM3352

Hi Champs,

Can we realize "Non-maskable " interrupt on the AM3352 ?

Our understanding , AM3352 is not allow "Non-maskable interrupt". It is only maskable interrupt.

Please make sure which is correct.

Regards,

Kz777

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RTOS/TM4C1294KCPDT: System epoch time is getting wrong

March 15, 2019, 3:51 am
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Part Number:TM4C1294KCPDT

Tool/software: TI-RTOS

Hi Everyone,

Please refer below code.

#include <ti/sysbios/interfaces/ISeconds.h>
#include <ti/sysbios/hal/Seconds.h>

struct tm* timeBuffer;

Seconds_set(1552641654);

STEP1:
Code:
time_t currTime = time(NULL);
timeBuffer = localtime(&currTime);
char* curTime = asctime(timeBuffer);
System_printf("Previous Time(GMT): %s\n", curTime);
System_flush();

Output:
Previous Time(GMT): Fri Mar 15 09:20:55 2019


STEP2:
Code:
Seconds_getTime(&ts);
struct tm* currTime = localtime(&ts.secs);
char* cTime = asctime(currTime);
System_printf("After Time(GMT): %s\n", cTime);
System_flush();

Output:
After Time(GMT): Tue Mar 15 09:20:55 1949

If i am using Step2 i am getting 70 years difference.

Can anyone please resolve my issue how can i get in both ways same time.

Thanks in advance.

Expecting a quick reply.

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limp home circuit

March 15, 2019, 3:53 am
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i hope if i could find someone who have some interesting documents could help me for making a good limphome system for vehicle loads

many thanks

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TPS2543: Over-Current Protection w/o portable device

March 15, 2019, 3:53 am
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Part Number:TPS2543

Hi Team,

If portable device don't connect to TPS2543, Does Over-Current setting(based on CTL1-3, ILIM_SEL and ILIM_LO/HI setting) work well? or it will be 0.5A limitation?

Regards,

Kotaro Yamashita

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DRV10970: Direction Reversal Operation in Trapezoidal mode of Commutation

March 15, 2019, 3:56 am
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Part Number:DRV10970

I am using DRV10970 for precision speed control of a three phase BLDC motor (FaullHauber 2610B). According to my understanding of the datasheet, when you switch/toggle the FR pin state, the motor first brakes and then reverses. However, in "8.4.1.1 Trapezoidal Control Mode", it is stated that  "In the trapezoidal control mode, the DRV10970 device drives standard six step commutation sequence based on the Hall input states and FR (direction) pin value." along with the truth table. [Ref : SLVSCU7A, Pg 17, 8.4.1.1]

Is the trapezoidal mode an exception for the FR operation, where changing the FR state directly changes the commutation sequence irrespective of the BRKMOD state.

Thanks and Regards,

Avish Gupta

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DP83867IS: DP83867IS RGMII interface for 2.5V I/O capability

March 15, 2019, 3:59 am
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Part Number:DP83867IS

Hi Team,

My customer is using DP83867ISRGZT in one of the design in RGMII mode as MAC interface.

They are providing 3.3V as the VDDIO voltage. Can you please specify is there way to operate the . 

Can you please specify is there way to operate the RGMII interface for 2.5V I/O capability.

Thanks in advance for the support.

Regards, Shinu Mathew.

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