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MSP432P401R: edu boosterpack mk II, IICDC

March 27, 2018, 11:00 pm
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Part Number:MSP432P401R

Hello, I am using edu boosterpack MKII with msp432p401R launchpad. The pins 24,27,28 on boosterpack, i want to use as analog input pins but not for accelerometer. I want to read external analog signal on those pins. When i connect those pin to external sensor, the pins are grounding the sensor input. The analog value read are constant and not changing due to this reason. 

Any suggestions how to use analog pins on edu mk ii boosterpack? Is there any way to disconnect the accelerometer or other peripherals attached to pins?

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BQ24133: BQ24133 Charging issue

March 27, 2018, 11:06 pm
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Part Number:BQ24133

Hi Sirs,

When our robot system is power on, it drains to much current from the battery (almost 40A, see below diagram). So BQ24133 is short circuit and end latched off.

If we  lower the draining current, we won't find this issue while we don't want to change our HW design now since we are really close to MP.

Does TI have any method can solve this issue except removing adapter then plug again? Thanks!

 

 


 


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CC2564C: Dual CC2564C

March 27, 2018, 11:08 pm
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Part Number:CC2564C

I am doing a solution to build a sort of "blue tooth audio hubs"

So, that i am thinking to use two CC2564C. and connect the I2S to each to each other And then connect them to one MCU, thru the HCI (with circuit for selection).

With this config, i expect i can receive the the Audio Data from BT, and process by the CC2564C #1, and the data can pass thru to I2S to the CS22564C #2 and the the audio data will stream out the Bluetooth again

My Question is:

- Can i connect the two I2S interface of the CC2564C for the audio data transfer?

- Can the MCU able to control two CC2564C at the same time?(Provided the HCI interface is some sort of separated by the control of GPIO)

- Can the Bluetopia stack support that?, I am just planning to use assisted mode for both CC2564C, but i am not sure if any maintenance is needed for the stack in the MCU

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CC2530: Use a CC2531 on a CC2530's PCB layout, without USB function

March 27, 2018, 11:09 pm
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TVS0500: limitation of SR

March 27, 2018, 11:14 pm
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TMS570LC4357: Fails every self test via Safety Lib 2.3

March 27, 2018, 11:15 pm
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Part Number:TMS570LC4357

Good day. Wanted to add a self testing to my project. Made everything same as the example in the Halcogen. (added src files to the project, included files, added some lines to the linker file). But when i run it, it failed right from the first test, it was PBIST self test. I i disabled all the PBIST self tests (defines are at the top of the startup file), and decided to go to the L2RAMECCCHECK. and it failed. Then i disabled l2Ram and went to the FLASH. And it failed as well. Return value was always 0 (false). Might it be something with my launchpad? Project works fine there (except of the temperatura sensor, but that thread is closed already). Here is my code. I created brand new project, clear, but problem remained.

(Please visit the site to view this file)

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RTOS/CC3220: Have any LWM2M open source can use with CC3220?

March 27, 2018, 11:15 pm
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Part Number:CC3220

Tool/software:TI-RTOS

hi sir,

Check the CC3220 document, and don't find have LWM2M support.

Have any one have experience to use LWM2M with CC32xx? Have any open source we can get start from it?

wenij

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AMC1301: AMC1301DWVR Reflow Temperature

March 27, 2018, 11:16 pm
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Part Number:AMC1301

Dear Sir, Madam,

My customer is facing issue during reflow process.

According to the MSL Ratings and Reflow Profiles Application Report, the reflow process is above 150 degree Celsius. The cut tape melting after insert into oven at temperature 125 degree Celsius.

If the part transferred into tray, the part will not have proper packaging after baking process. 

Please advise suitable temperature & time for baking component in cut tape without taking out the part from the tape.

The package thickness is max 2.8mm and volume is max about 126mm3. According to the MSL Ratings and Reflow Profiles Application Report, the condition for reflow as below. Please correct me if there is any misunderstanding.

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Linux/WL1831MOD: Datacorruption on bluetooth !

March 27, 2018, 11:34 pm
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Part Number:WL1831MOD

Tool/software: Linux

Hello ,

TI-WL1831 . 

We are experiencing data corruption on RFCOMM. (we are testing with 2 service packs version 4.2 and 3.9, both have similar bit errors in the data !)

Test scenario we use ONE-Bluetooth master ( bluegiga WT41 ) connecting to multiple bluetooth slaves ( WL1831).

The test sends one GENERATED DATA FRAME containing some header and data bytes 00, 01, 02 ... till FE. after some hours of loopback it happens occasionally ( 1a2 frames on 100.000) that  we get faulty data-bytes.

( FYI each in and out going action, the generated data frame is checked on different levels, application  and kernel driver just before sending to the ACIA ( in the HCI_LL driver) and or just after receiving on the acia.

Acia baud rate ( 3000000 baud) has been checked with an 'infinite persistence' scope for several hours, bits have no jitter, and levels are ok! 

This is an example of an error data frame. ( for some reason if an error happens... the error frame is 'NOT' ok, some bits ( in a byte) are missing or shifted to next bit position in the bytes)

This error FRAME is being logged when we get the data into the HCI_LL driver ( received by the host cpu , after getting the bytes out of the ACIA) marked faulty bytes are colored RED and underlined,

Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764375] [KERNEL] DUMP-DIFF !!!!!
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764410] RX-BUF [len=00304]
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764527] [0x0000] 01 00 03 00 00 09 00 00 00 02 00 00 00 00 00 00 FF FF 04 00 FF 02 00 00 00 01 00 00 00 FF 00 00 00 00 00 FF 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764638] [0x0040] 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764748] [0x0080] 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 5B 7C 7D 7E 5F 80 81 82 83 84 85 86 97 88 89 8A 8B 8C 8D 8C 8F 90 91 92 93 94 95 96 97 98 99 9A 9B
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764858] [0x00C0] 9C 9D 9E 9F A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB
Mar 28 05:56:17 DU9 kern.warn kernel: [152851.764931] [0x0100] DC DD DE DF E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE BF 49 2F 72 65 71 75 65 73 74 6D 64 69

Finally this 'same' error pops-also up in the application software ... printing out the WRONG bytes ( first print out is just behind the socket read in the application)

Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] BEGIN - LOG
Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] OFFSET 0x007B : 0x7B <=> 0x5B
Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] OFFSET 0x007F : 0x7F <=> 0x5F
Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] OFFSET 0x0087 : 0x87 <=> 0x97
Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] OFFSET 0x008E : 0x8E <=> 0x8C
Mar 28 05:56:18 DU9 user.info BMS_DUTEST_0 [24818]: [ModLoopbackDUMsg] END - LOG

Any hints on how to proceed ? 

Is there any possibility to log the data-bytes over the serial line with the Ti-logger application  ( I can see many things there , but I don't find a way to see serial DATA-BYTES on HCI_LL level ! )

Best Regards

Noel Vellemans

FYI:

1) this error is never seen on a bluegiga vs bluegiga setup.

2) it can take up to more than a day to get this 'error'.

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LM27402: About the output current

March 27, 2018, 11:36 pm
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Part Number:LM27402

What is max current on LM27402 for 12Vin/9Vout ?

and Antminer S9 is using LM27402 for 12Vin/9Vout/30A, Are they using in the over-specs?

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CC430F5137: CRC check probleam

March 27, 2018, 11:38 pm
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Part Number:CC430F5137

Hi,

I am working on CC430F5231 module. I have started with example code given in SLAA465C. I am using  LT_FIFO code. But the ready code provided by TI seems not working. It always transmits data but CRC check always fails even if data is correct. Can anybody help me to resolve it? 

Thanks.

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DP83849ID: Bit or Packet transfer

March 27, 2018, 11:41 pm
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Part Number:DP83849ID

If PHY is used as data converter 100Base-TX to 100Base-FX, will conversion & data transfer be bit or packet wise ?

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LP87524B-Q1: Overload RISING EDGE DEBOUNCE TIME

March 27, 2018, 11:42 pm
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Part Number:LP87524B-Q1

We found "Overload RISING EDGE DEBOUNCE TIME" is 1ms in datasheet P29.

Please let us know tolerance of this.

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CCS/CC1350: Writing in flash memory

March 27, 2018, 11:44 pm
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Part Number:CC1350

Tool/software: Code Composer Studio

i m using cc1350 and working with the transmitter example. i have some variables(suppose intial value is 0) which i m updating at run time. After updation those  variables value became 1. Now i m doing the power off and power on. Now my requirement is those varibles should have value one.

.......How to do this......do i reserve some falsh memory for my variable....if yes then how to do this..

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AWR1443BOOST: Elevation angle AWR1443 sensors provide

March 27, 2018, 11:46 pm
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Part Number:AWR1443BOOST

What is that max. height an AWR1443 sensor can detect at the closest detectable distance?

Also, is there any other TI's mmwave radar sensor that can give a 3D- Point Cloud Data(position coordinates along with the height of the object) within a range of 100m atleast? 

Thanks 

Regards 

Rahul Kumar

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SNJ54LS244J output side observing 3.4V signal level

March 27, 2018, 11:47 pm
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Hi ,

In our design we are using SNJ54LS244J CDIP package. The inputs are provided 5V signals but at the output side while probing observing 3.4 V signals level.
As per datasheet we are observing 3.4V typical value.Kindly let us know why we are not observing at output side maximum 5V signal level.

Thanks & Regards,

Vijay Varma

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Linux/DRA746: Waylansink:Video playback query

March 27, 2018, 11:54 pm
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Part Number:DRA746

Tool/software: Linux

Hello Team, 

We use custom h/w and software based on DRA746 and SDK 3.03.

Currently we have enabled the video playback with "waylandsink" and tested with pipelines as mentioned in developer guide for SDK as we are using wayland-ivi-extension and weston with ivi-shell configuration.

We are using our own media player for playing audio/video files and facing an issue in video playback scenario:

1. Select a video from the play list, video starts playing on the screen.

2. Press the back button, play list screen comes on the screen and video is still playing in the back ground.

3. Select a different video file from the list, system shows the previously playing frame for a second and then plays the new selected video.

Could you please suggest what is went wrong here, why previous video frames are shown before new selected video starts playing?

Thanks & Regards,

Ikshwaku

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Linux/AM5728: am57xx-evm-linux-sdk-arago-src-04.02.00.09.tar usage and hou to build Arago filesystem?

March 27, 2018, 11:57 pm
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Part Number:AM5728

Tool/software: Linux

What is am57xx-evm-linux-sdk-arago-src-04.02.00.09.tar used for? 

after sudo ./get_build_sources.sh source_pkg_list.txt , some source code packet and bare repository are downloaded. But how to use build these source code and install them to the root file system?

I don't think we need to compile and installation them one by one.

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BQ25890: bq25890 new design HW connection problem

March 27, 2018, 11:58 pm
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Part Number:BQ25890

Hi,

I am designing a battery charger circuit with BQ25890, here I get some questions about circuit connections, could you please me?

1. If USB function is not needed, can I leave D+, D- and DSEL pins unconnected?

2. If QON（Pin12）function unused, can I leave this pin unconnected?

3. Do I need other pins connection for this IC to MCU communication except SCL, SDA and INT pins?

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PCM5121: 3-wired configuration with I2C mode

March 28, 2018, 12:08 am
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Part Number:PCM5121

Hi

Our customer wants to work EVM with 3-wired mode.

Input configuration is SPDIF optical.

According to the datasheet, PLL registers seem to be configured in software mode.

However, we can not see sample code in default configuration file (Fs = 48KHz configuration file).

How to set PLL registers with 3-wired mode?

Can you share sample code?

BestRegards

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