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LAUNCHXL-CC2640R2: Idle mode in CC2640

January 23, 2019, 9:50 pm
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Part Number:LAUNCHXL-CC2640R2

Hi everyone,

I recently started working with CC2640R2F launchpad. I am trying to understand the power modes in CC2640 MCU. From the TRM (swcu117h Chapter 6.6), i came to know about 4 power modes (i.e. Active, Idle, Standby and Shutdown). and from chapter 6.2 of same TRM there are 3 System CPU modes ( Run, sleep and deep sleep). And i found one more file (http://www.ti.com/lit/ug/swra486/swra486.pdf , chapter 3.2 - idle mode), in which it is mentioned we can enter idle mode . They mentioned the code exists in cc26xx\Power_standbyPolicy.c located in tirtos sdk folder. I have latest tirtos version 2.21.01.08, i did not find the mentioned file.

I have a few questions. Please help me to clarify the concepts:

   1. When the device goes to idle mode,whats the status of System CPU (sleep or deep sleep) and whats the difference between sleep and deep sleep modes?

   2. When device is in idle mode, it can wake up by any interrupt source (RTC, pin edge, reset). Is it possible to wake up the processor from mobile app (there is possibility of RF core running when device is in idle)

   3. where can find the Power_standbyPolicy.c file (or) is it deprecated?

Please help me to understand the concepts.

Thank you

Srinivas

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CCS/TMS570LS0914: No source available for "0x0"

January 23, 2019, 9:52 pm
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Part Number:TMS570LS0914

Tool/software: Code Composer Studio

Hi ,

While debugging the Boot-loader code on a TMS570LS0914 . We are getting the no source available for "0x0" . I am Using XDS200 JTag emulator

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Linux/TLV320ADC3101: TLV320ADC3101

January 23, 2019, 9:59 pm
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Part Number:TLV320ADC3101

Tool/software: Linux

Hello team,

We have below questions need your reply:

  1. Do you have power net(AVDD, DVDD, IOVDD) max current test results.
  2. Could you please release the TLV320ADC3101 linux driver?
  3. Do I need to connect the MCLK for clock synchronize, or BCLK in I2S is enough?
  4. Will it cause any problems if I only connect the BCLK instead of MCLK?

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LMX2571: Analog FM modulation on FSK I2S mode

January 23, 2019, 10:07 pm
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Part Number:LMX2571

Hi,

Though my customer is evaluating LMX2571, Analog FM modulation doesn't go well on FSK I2S mode.

Negative side of demodulated signal does not outputted.

Condition is Fosc=20MHz、Fout=480MHz, and attached file(Please change the extension from "txt"to "tcs").

(Please visit the site to view this file)

Could you check if register setting is correct?

And please let me know what we should check.

Best Regards,

Kuramochi

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RTOS/AWR1642: AWR 1642, calculation INF

January 23, 2019, 10:10 pm
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Part Number:AWR1642

Tool/software: TI-RTOS

Hi, 

Refering to the above image

Where x_real= 6e21 and x_mag=Inf. 

Is it x_real*x_real>FLT_MAX which caused C674 cannot handle?

When I run simulation with exact code on PC with gdb compiler, PC can handle this.

Is there any option for C674 compiler to enable to handle such case?

Thank you

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ESD PROTECTION

January 23, 2019, 10:13 pm
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1.Looking for replacement to ON, p/n ESD5111FCT5G – it is ESD for 3.3V

2.Need also similar for 5.0V

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PCM5100: Synchronization of multiple audio DACs

January 23, 2019, 10:16 pm
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Part Number:PCM5100

Hello,

     Please advise if multiple PCM5100s can be made to work in phase i.e., the outputs are phase synchronous. Also, will there be any delay between the two audio outs of a single device?

Does this need any special way of connecting. 

We plan to feed an external SCK to each IC so that the internal PLL is bypassed. Would this be a better approach to achieve our target?

Look forward to your inputs,

Regards.

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Linux/TMDSSK3358: TMDSSK3358 CAN bus

January 23, 2019, 10:18 pm
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Part Number:TMDSSK3358

Tool/software: Linux

Hi Team,

SDK: ti-processor-sdk-linux-am335x-evm-05.02.00.10

I am studying AM335x CAN Bus by AM335X DCAN Driver Guide.   I add below code to am335x-evmsk.dts.

dcan1_pins_default: dcan1_pins_default {
	pinctrl-single,pins = <
		AM33XX_IOPAD(0x16c, PIN_INPUT | MUX_MODE2) /* (E17) uart0_rtsn.dcan1_rx */
		AM33XX_IOPAD(0x168, PIN_OUTPUT | MUX_MODE2) /* (E18) uart0_ctsn.dcan1_tx */
	>;
};
&dcan1 {
	status = "disabled";	/* Enable only if Profile 1 is selected */
	pinctrl-names = "default";
	pinctrl-0 = <&dcan1_pins_default>;
};

 I try use "ifconfig -a"  to check CAN bus，but  can't detect CAN bus. Need add CAN transceiver to TMDSSK3358 ?

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Linux/DRA74: Does the U-Boot in the PROCESSOR-SDK-LINUX-AUTOMOTIVE 5_00_00_01 sdk support Splash Screen?

January 23, 2019, 10:20 pm
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Part Number:DRA74

Tool/software: Linux

Hi ,

My board cpu is dra745, and it design reference j6evm5777 board. code source use PROCESSOR-SDK-LINUX-AUTOMOTIVE  5_00_00_01.I want to display a logo when U-Boot is running.does uboot in this sdk support this feature ? Where can I find relevant information?

Regards,

Fang

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Linux/AM5718: AM5718 custom board interfacing with camera sensor

January 23, 2019, 10:24 pm
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Part Number:AM5718

Tool/software: Linux

Hi All,

We have developed one custom board based on AM5718 soc for interfacing of camera sensor.

Now We are able to get the data from sensor in which we get the whole frame using below yavta command. Now we need to get the sensor data line by line instead of whole image so please provide us the details how we got the sensor data line by line.
Command : yavta -f SGRBG8 -s 4208x3120 --capture=1 --file=image.raw -F /dev/video0

FYI: we are currently using TI-cal driver.
LINK:processors.wiki.ti.com/.../Linux_Core_CAL_User's_Guide

Thanks,

Simit

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OPT9221: OPT9220 data output

January 23, 2019, 10:28 pm
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Part Number:OPT9221

Hello team,

In general case,  the OPT9220 data output will connect to MCU?  via DVP or SSI?

Thanks.

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DRV8873-Q1: DRV8873 power calculation issue.

January 23, 2019, 10:32 pm
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Part Number:DRV8873-Q1

Hi Sir

DRV8873 issue: VM power supply=6V@9.5W,  IN1/2 duty cycle setting 50%.

VOUT1/2 path add LC filter, TEC_VOUT1=5.29V, TEC_VOUT2=2.88V, IPROP status output=2A, but fault occurred.

TEC(V(V)) : Vout1-Vout2= 2.41 V(V), to check TEC current about 1.5-2.2A, as attached file .calculator TEC power loss around 3.62-5.3W.

but VM power is 9.5W, IC isn't hot, May we know how to calculater power loss? (we main concern is if TEC consume is 5W, then it is mean IC will having 4W power loss,is it normal in this kind application?)

                                                                        Bogey

 


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CC1310: Maximum Nodes number and performance stability test

January 23, 2019, 10:32 pm
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Part Number:CC1310

Dear Sir,

May I know what is the maximum number of nodes can be support using CC1310? If I am using more than 300 nodes for carpark system, is there any way for me to test and ensure all these 300 nodes is working and performance stability?


Hope to hear from you soon!

Thanks and best regards,

KH

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Linux: linux

January 23, 2019, 10:37 pm
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Tool/software: Linux

hi Team,

i wanted to ask the below  question once again,

#tc qdisc add dev eth1 root handle 1: mqprio num_tc 3 map 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 0

this is giving me the error below

RTNETLINK answers: Operation not supported


i am using the ubutnu kernel version 4.15.0-43-generic.

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TLV320DAC3203: MLCK in slave mode and I2S compatibility

January 23, 2019, 10:48 pm
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Part Number:TLV320DAC3203

Hi there,

We are considering to use this DAC in a design. There will be another amplifier TAS5825M that will be used with this on the same board that shares the same I2S bus (same audio channel).

The TAS5825M doesn't require MLCK for syncing, while MCLK is available on TLV320DAC3203. I understand that TLV320DAC3203 can sync the clock via BCK. My question is, is the syncing compatible when in slave mode?

-TeeHowe

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RTOS/TDA2PXEVM: Need guidance in implementing the component by using SDK framework

January 23, 2019, 10:55 pm
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Part Number:TDA2PXEVM

Tool/software: TI-RTOS

Hi Anuj/Rishab,

As you guys suggested it is not pretty straight forward in porting Linux based component on A15 Sysbios, and most of the features are not supported as is on sysbios, even compiling the sources for sysbios doesn’t guarantee the working functionality.

 So, we have come up with the design by using the features supported by sysbios and need your guidance/inputs on design provided along with this post.(Please visit the site to view this file)

 Before moving further with implementation phase we request to have a look and let us know your responses for below queries.

  1. Do you foresee any concerns with the above approach ?
  2. Which would be best approach for exchanging the data btw applications which runs on same/different cores.?
  3. Any Sample usecase reference for exchanging data via IPC’s ?
  4. Can Single Mailbox be used for communication?
  5. Any Synchronization mechanism to be used while using system buffers/Mailbox’s/IPC’s ?
  6. Any suggestions on alg/links to be used for exchanging the data among the different tasks ?
  7. Can a single usecase can contain multiple tasks in it?
  8. Any concept of ring buffers mechanism using SDK framework ?

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AMC1300: Gain and Offset Error in Voltage Sensing Application

January 23, 2019, 10:55 pm
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Part Number:AMC1300

Hi,

We would like to use the AMC1300B or AMC1301 in a voltage sensing application. We are aware of the Application Report sbaa214 (figure 5).
Do you have exact formulas for the calculation of the offset error and gain error when using a R2'=R2 (where R2 is the shunt resistor) for the AMC1300B as well as the AMC1301?
For the gain error: Is formula (4) an exact formula or just a approximation? Shouldn' the formula be EG=(1-(R4/(R4'+R2')))*100% (Minus instead of a plus)?

Thanks and best regards,

Patrick

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CC1310: Zigbee

January 23, 2019, 10:59 pm
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Part Number:CC1310

Hello forum,

Is it possible to implement a Zigbee protocol on CC1310?

Does TI-RTOS or chip SDK support it? 

I've been sifting through the documentation but I haven't found anything yet.

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BQ4050EVM-561: how to test our board with 2s cell battery?

January 23, 2019, 11:03 pm
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Part Number:BQ4050EVM-561

Hi, 

I think we can do it by: short 4P, 3P, 2P, replace R20, R21, R22 with 0ohm resistor.

But I'm not sure if any other modification is needed.

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DRV10983-Q1: DRV10983-Q1 start-up OverCurrent

January 23, 2019, 11:03 pm
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Part Number:DRV10983-Q1

Hi Sir:

    DRV109831-Q1 set by GUI.   12V Supply and test Current 0.6A ,But if i start-up i will get a  OverCurrent  prompt.

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