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enclink error with Utils_bitbufGetEmptyBuf

August 31, 2015, 11:42 pm
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The situation is when the links are running ,Utils_bitbufGetEmptyBuf  ( inside encLink_common.c )   return with pOutBuf =NULL. After that  forceAvoidSkipFrame=TRUE and all the frames are skiped.(It works well at the beginning)

And there shows no error, all systems still running.Just the enclink can't get the pOutBuf .

This problem came up with the source of VIP change from sii1161 into fpga.

I think that maybe the fpga can't offer a really standard video source.

Need your help.Any suggestion would be appreaciated. 

Regards

Yang

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TPS54821 , TPS54020 / Current Share

August 31, 2015, 11:53 pm
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Hello,

Can we use TPS54821 with current sharing by multiple devices ?
And can we use TPS54020 with current sharing by multiple devices ?

I would like to use these device for the followint power supply.

Vin=12V, Vout=8V, Iout=15A

Best Regards,
Ryuji Asaka

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output Data from Ldc 1000

August 31, 2015, 11:53 pm
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hello,

i use the GUI to save the Output Data of ldc1000 

the data I get in the table.
the inductance I can already see the Proximity data as,
which of the data is the frequency or resistance?

Thank!

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UC3825A related questions

August 31, 2015, 11:55 pm
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Hi,

   UC3825A is the controller of our buck circuit and the driver IC is ISL6207.

In the application, the input voltage is 20v and the output is 8.4v. the maximum loading is 8A.

During the test, i find that when CT value is less than 220PF, the UC3825 power loss will increase and OUTA output will be abnormal.

There is a abnormal pulse followed the high level signal of OUTA, which causes much power loss in our application.

Increasing CT value to above 220PF can solve this problem.

could you plese help tell why? 

Best wishes,

Jacky

 

  

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INIT: Id "1" respawning too fast: disabled for 5 minutes

August 31, 2015, 11:55 pm
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Dear TI e2E community,

As am working on boot time optimization, Am seeing the above error message in the rootfs am using ti sdk 8 & argobase rootfs (minimal), could anybody please let me know why would I am seeing the above error message

Kindly do the needful as early as possible

Many Thanks in advance

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Control TLV320AIC3254 by TI PurePath

August 31, 2015, 11:55 pm
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Hi team,

We know can use the two block (show below) to control (IN1_L & IN1_R) and (IN2_L & IN2_R).

What if we would like to control any pair of of INxR and INxL such as (IN1_L & IN2_R), (IN1_L & IN3_R).

Could you pleas let us know how to control any pair of INxR and INxL on the PurePath?

Regards, Prescott

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standardization for controller that include cc3100

August 31, 2015, 11:58 pm
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Hello everyone

I ask your help:

I developed a controller with a processor type-                        and WIFI Component type-         -          

The Standards Institute told me to configure three types of frequencies-

  • Transmit With Modulation  High Freq
  • Transmit With Modulation  Low Freq
  • transmit With Modulation  Mid Freq

 

Of course, the controller should transmit all the time in frequency required with Modulation.

Another Operation of the controller-

  • The controller only receives information         (MidFreq   Receive)

 

How do I write to controller to do this?

 

Thanks for any help,

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AFE4400 Source Code in CCS?

September 1, 2015, 12:16 am
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How to use AFE4400 source code in Code composer studio?

or

What changes are required to make code compatible with CCS?

Best Regards,

Ajinkya

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UC3825A related question

September 1, 2015, 12:17 am
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Hi,

   UC3825A is the controller of our buck circuit and the driver IC is ISL6207.

In the application, the input voltage is 20v and the output is 8.4v. the maximum loading is 8A.

During the test, i find that when CT value is less than 220PF, the UC3825 power loss will increase and OUTA output will be abnormal.

There is a abnormal pulse followed the high level signal of OUTA, which causes much power loss in our application.

Increasing CT value to above 220PF can solve this problem.

could you plese help tell why? 

Best wishes,

Jacky

 

  

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Joining process doubts

September 1, 2015, 12:27 am
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Hello, 

I'm trying to understand the joining process in z-stack. in AN 123, i read the MAC association process of a device that try to join a network available.

The process consist in joining device issues a beacon request in response to all coordinators and routers with RF range response beacon. The joining device select one of the routers or coordinator that answer to is beacon request and send a association and data request. My doubt is if it is possible on Z-Stack application layer know the device information (for example MAC address) that want to join the network in this fase, before joining the network and before receive the Device announcement.

Best regards.

Nalves

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TPS65910 VDD_CORE and VDD_MPU waveform with AM3352

September 1, 2015, 12:32 am
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Hola,

I observed the voltage variance of VDD_CORE and VDD_MPU of the TPS65910 while AM3352 wake up from deep sleep mode shown as below figure.

Please help to comment if this behavior work normally. Thank you.

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problem on Rebuild EVM c6678 library with gcc

September 1, 2015, 12:40 am
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Hi to all

i try to rebuild 'ti.platform.evm6678l.ae66' library in pdk c6678 with the version of gcc (c6x-uclinux-gcc)

i have two solution:

S1 : rewrite makefile and rebuild library from source file (or edit exist makefile)

S2 : use ccs and edit project properties and replace CGT compiler to gcc

Q1:Do you know a better solution?

i start work on S2 but compiler and archiver  options (FLAGS) is completely different  and after removing all option (falgs) console report  this:

....

../src/evm66x_i2c.c: line 1: /bin: is a directory
../src/evm66x_i2c.c: line 6: /bin: is a directory
../src/evm66x_i2c.c: line 7: ccsObjs.opt: command not found
../src/evm66x_i2c.c: line 8: ccsObjs.opt: command not found
../src/evm66x_i2c.c: line 9: ccsObjs.opt: command not found

......

that seem due to changing compiler

Q2: anybody can help me for this issue?

thanks

Ebi

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TMS570MDK transmintion cycle and massage ram configutation(wrhs3.dp)

September 1, 2015, 12:45 am
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Hi,

The attatched pictures are the singles I probed on the transition line, including the cycle, bit length, configuration and wakeup pattern.

According to the configuration in the example, pMicroPerCycle=24000d,  bit rate=10Mbit/s(PRTC1.BPR[2]=0X0), namely 4uT=100ns, thus the cycle length should be  5.6ms. However, the actually cycle length I test is 56ms. 

I am wondering why the cycle length is as ten times long as I expected.

Also, in the two node FlexRay example, the lcb, ffb and fdb in the mrc register are set as 23, 64 and 4 respectively. According to the mannual, the controller can only use the message ram buffers numbered less than lcb. Thus, I supporse the wrhs3.dp should be configured with a  number less than lcb(23) and more than 0. However, in the example, for different frames the  wrhs3.dp(s) are set as 0x80, 0x84, 0x200 which are all more than lcb value.  I would appreciate if you could explain the reason for this.

Waiting for your response

Best Regards,

Liu Xuan

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Solar Power bank

September 1, 2015, 12:58 am
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I want to design a solar power bank for my final year project any one help me to suggest safety feature required and efficient design for circui

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TPS613030 circuit schematic review

September 1, 2015, 1:05 am
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 Hello Guys,

I'm working on TPS613030 adjustable version to generate 3.3v and 5v from 2 coin cell CR2450 connected in parallel each capacity 620mAh. My peak current consumption is 320mA for the short duration of 30-40 sec. Below I'm attaching my schematic. Can you guys please review it and correct me out if there is something wrong. Also i need guidance in ferrite bead selection according to my current consumption

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TI-Android-ICS-4.0.3-AOSP root file system compilation Error

September 1, 2015, 1:20 am
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Hi everyone i am getting some error while compiling Android 4.0 from TI source .

Help me to fix this error and go to further step.

 

Error is :

frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String8, long int>’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead
In file included from frameworks/base/include/utils/AssetManager.h:25:0,
from frameworks/base/tools/aapt/AaptAssets.h:10,
from frameworks/base/tools/aapt/Main.h:14,
from frameworks/base/tools/aapt/Command.cpp:6:
frameworks/base/include/utils/KeyedVector.h: In instantiation of ‘const VALUE& android::DefaultKeyedVector<KEY, VALUE>::valueFor(const KEY&) const [with KEY = android::String8; VALUE = android::sp<AaptSymbols>]’:
frameworks/base/tools/aapt/AaptAssets.h:446:59: required from here
frameworks/base/include/utils/KeyedVector.h:193:31: error: ‘indexOfKey’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
ssize_t i = indexOfKey(key);
^
frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String8, android::sp<AaptSymbols> >’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead
frameworks/base/include/utils/KeyedVector.h: In instantiation of ‘const VALUE& android::DefaultKeyedVector<KEY, VALUE>::valueFor(const KEY&) const [with KEY = android::String16; VALUE = unsigned int]’:
frameworks/base/tools/aapt/ResourceTable.h:485:100: required from here
frameworks/base/include/utils/KeyedVector.h:193:31: error: ‘indexOfKey’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String16, unsigned int>’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead
make: *** [out/host/linux-x86/obj/EXECUTABLES/aapt_intermediates/CrunchCache.o] Error 1
make: *** [out/host/linux-x86/obj/EXECUTABLES/aapt_intermediates/Command.o] Error 1
sarath-ak@sarath-ak:~/workspace/buil_android/TI-Android-ICS-4.0.3-DevKit-EVM-SK-3.0.1$ ls

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AM335x UART Pulse duration requirement

September 1, 2015, 1:28 am
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The pulse duration requirement depends on the programmed baud rate.

 

To receive, does a bit that is out of the pulse duration requirement fail?

Table 19-6 on TRM (SPRUH73L) describes "Over sampling". If the over sampling is used, the pulse duration requirement should be looser. Do I misunderstand it?

 

Best regards,

Daisuke

 

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CC256x with CC3200 (Wi-Fi + Bluetooth)

September 1, 2015, 1:33 am
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Do TI have function filter to find the suitable MSP430 chip?

September 1, 2015, 1:33 am
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Dear friends:

      I need one MSP430 chip which have capacitive touch driver and LCD driver.

     Do TI have any tool to find it quickly?

                 Thanks for reply.

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creepage and clearance distance of ISO7220M

September 1, 2015, 1:39 am
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Hello Team,

Could you tell me the reason why creepage distance of ISO7220M is shorter than clearance?

I Ithink creepage > clearance because the shortest path of creepage is found around the end of the package body.

Best Regards,

Hidetoshi Matsunami

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