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CCS / CC2640R2F：Layout document
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IWR1443BOOST: Difference among 3 options
Part Number:IWR1443BOOST
Hi Team,
I want to know the differences among 3 option board which can connect to IWR1443BOOST.
In my understanding, IWR1443 can interface following 3 boards for mmWave demonstration.
- TMDSEMU110-U
- MSP-EXP432P401R
- MMWAVE-DEVPACK
Please tell me the differences in what we can do in the above three board with IWR1443BOOST.Regards,
Takashi Onawa
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TXB0104: status changes issue in FCT test
Part Number:TXB0104
Problems when FCT test：
When ES+/- or Encoder _+/- changes from +5V->0V or 0V->5V ，RO or EQEP usually can't achieve +3.3V->0，somtimes remain +1.7v-2v。
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BQ76200: BQ76200 Circuit review
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DLPC3438: Inquiry about supporting autofocus
Part Number:DLPC3438
Hi, there
I'm going over autofocus.
I have searched several site and documents, it seems that I have to have an external device for supporting autofocus.
but I don't know it is sure. So can you let me know about below questions?
1. To support autofocus in our product, do I have to select an optical engine which has a stepper motor?
2. If yes, is there the specific feature to calculate distance to screen in that engine?
Otherwise, do I have to use an external things like IR sensor?
Thanks for any help in advance.
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LM3481: Feedback method for Flyback converter
Part Number:LM3481
Hello guys,
I have designed a flyback dc to dc converter using LM3481, Specifications are mentioned below;
Input supply: 9-30V
output supply: 5V
Output current: 500mA
switching frequency: 250KHz
There are 2 pins i.e. 1.feedback and 2.compensation in LM3481 which are useful to take feedback from secondary and control PWM accordingly.
I took reference from"www.ti.com/.../snvu528.pdf" -->"Figure 17. LM3481-FlybackEVM Schematic" to build this dc-dc converter.
My question is, this application note suggest to ground feedback pin and use compensation pin for feedback purpose but I don't understand how this feedback mechanism works?
If I use feedback pin instead I am not getting regulated 5V output.
Kindly help me out to understand why compensation pin is used and how it works and why feedback pin is not used.
Thanks.
Kindly help me out
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AWR1243BOOST: For AWR1243BOOST , need i must do flashing mode and then do dev mode?
Part Number:AWR1243BOOST
I know for AWR1642 BOOST, when i first run AWR1642, or switch between demo/lab and capturing data, i needs do flashing mode first, then do functional mode at first time. Next as long as i do not change demo/lab or capturing data, i neen not do flashing mode, just power on evrytime is ok.
1/How about AWR1243BOOST for capturing data?
2/when i first ues AWR1243BOOST for capturing data, can I do dev mode directly, or need i must do flashing mode(SOP=101), and then do dev mode(SOP=011) ?
3/How about AWR1243P chip, also can i do dev mode directly?
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TMS570LS1224: TMS570LS1224
Part Number:TMS570LS1224
Hi,
There is a mention about GIOC[7:0] and GIOD[7:0] in the field discription of GIO Interrupt Detect Register(page no. 1313 of Reference Manuel).But I couldn't find them in the pin diagram. Can anyone please explain??
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Compiler: ds16ev5110asq EQ Booster register setting difference value is not useful in disitance
Tool/software: TI C/C++ Compiler
When debug DS16EV5110ASQ EQ Booster register ,the output extension distance is not changed , but though seting exteral hardware part ,the function is OK . so pls give me guideness how to enbale the EQ booster register function,thanks!
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CC1352P: OTA upgrade server appplication example
Part Number:CC1352P
Hi,
We are currently implementing a OTA upgrade server application in our platform and we are completed our implementation. But the image is not getting updated properly to the end device.
Is there any sample application available to demonstrate the working of the OTA server. It would be much easy if provided along with source code it would help us to debug the OTA update in zigbee end device.
Thank you,
Deepanraj.A
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EK-TM4C1294XL: AWS Cloud Connectivity With GSM Modem
Part Number:EK-TM4C1294XL
Hi,
We are in the development stage of an attendance and tracking system.
The hardware platform we are using is Tiva TM4C1294XL launch pad
We are using Amazon Free RTOS as OS and application is to get RFID data from a RFID reader and to upload the data to the cloud.
We are using a GSM modem (SIM808 module based ) to upload data to the cloud. The GSM modem communicates with Tiva board only through UART interface. Using AT commands for configuration and GPRS upload.
We have got a reference of CC3220 launchpad connectivity with AWS endpoint using WiFi, certificate and policy.(The reference demo is part of Amazon Free RTOS )
Instead we need to use the UART interfaced GSM modem for AWS connectivity and publish/subscribe.
It is very much helpful getting any reference implementation or some guidelines to get access to AWS with Tiava TM4C1294XL and GSM modem
Thanks in advance
Best
Rajesh Kumar V
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Doubt in placing input filter circuit in ac to dc converter
Hi,
I have a doubt regarding placing of input filter circuit in ac to dc converter. Is it better to put in ac line supply(before rectification) or in dc line supply(after rectification)?
Please help me to understand this.
Thanks&Regards,
Arkaprabha
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SN6501-Q1: What would be a suitable transformer for the device
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TINA/Spice/UCC28070: Simulation error in UCC28070.
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LM5022: Flyback transformer auxiliary winding
Part Number:LM5022
Dear Sir/Ms.
I refer the PMP20497 to design the power solution.
http://www.ti.com/tool/PMP20497
Vin: 12V~56V
Vout: 55.5V/1A (system load 0A~0.6A)
Can I remove the Flyback transformer auxiliary winding?
Because I remove D2, the system seems work normally.
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LMH0202: LMH0202 PCB example
Part Number:LMH0202
Hello
I am looking for PCB layout example for LMH0202. I found TIDA-00352 in the Tools & software tab of the device HP. But it seems the Design Files of TIDA-00352 does not match the Schematic/Block Diagram.
Could you give me PCB layout exmaple of LMH0202?
Best regards,
Tetsuro
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TMP75-Q1: How to send SM_BUS command
Part Number:TMP75-Q1
Hello everyone,
I am using TMp75 sensor for real time temperature monitoring, I configured interrupt alert. it works fine.
But i have a doubt how to send the SM_BUS command to the sensor ?
i2c_write(Slave_address,SM_BUS_command) -> is this correct ? if it wrong correct me.
Regards,
Renjith Mohan
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TUSB8041: Query on USB hub
Part Number:TUSB8041
Dear sir/madam,
I am using type 6 Intel based com express module and TUSB8041 usb hub on my baseboard. I have made upstream connection between type6 and usb hub as follows:
Vbus(type6) -> Vbus(hub);
D+(type6)->D+(hub);
D-(type6)->D-(hub);
Tx+(type6)->Tx+(hub);
Tx-(type6)-> Tx-(hub);
Rx+(type6)->Rx+(hub);
Rx-(type6)->Rx-(hub).
Is the connections right? or Should I connect Tx(type6 pair) to Rx(hub pair) and Rx(type6 pair) to Tx(hub pair)?
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OPT101: OPT101 output voltage stabilization problem
Part Number:OPT101
Dear,
we are designing smoke detector device where we are using OPT101.
Problem : We are facing problem that OPT101 gives output approx. 2.0V after getting green light but this voltage decrees for some time and approx. we find approx. 200mV decrement.
I can share circuit also.
RDS
Hasan
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CC2592: Input Impedance of CC2592
Part Number:CC2592
Hello,
I am using chip 2450BM15B0003 for my design with CC2510 (recommended by TI).
In Balun datasheet, they have mentioned that its differential impedance is conjugate of the impedance of CC2510 i.e. 80 - j*74.
I want to add the range extended to this design. I would like to keep it modular so that I will use it if required.
Can I use the same balun for CC2592? If not,
What is the input impedance of CC2592?
Most of the CC2592 reference designs are with CC2530. Should I take it a conjugate of the differential impedance of CC2530 i.e. 69 - j*29.
Please help.
-Venu
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