Part Number:DRV8305
Dear, All
Customers are evaluating using DRV8305.
A phenomenon occurred in which pulses of the nFAULT signal continued to be output while EN_GATE was turned on after the supply voltage was determined.
When the status register was read, the nFAULT signal was not output, but the error flag bit was not turned on at all in the status register.
I want to know if this is a specification at startup.
Thanks, Masami M.
Part Number:CD4053B
Hi Team,
We would like to know the VIH at VDD=18V (VDD-VSS=9V-(-9V)) because we can’t find this value in the datasheet.
Could you please let us know if you have any data?
Regards,
Kanemaru
Part Number:am4376
Tool/software: Linux
we use GPIO4_11 as a interrupt input, it is pulled up on 3.3V.
when interrupt signal come, it is turn to low level to tigger the ARM IRQ handler. remains 2us low, then back to high level at 3.3V.
usually the interrupt signal is 8us a cycle when it comes.
at now our problem is the ARM GPIO interrupt handler is not work stablelly. we make a counter in the handler, it count not the same as
the total GPIO interrupt number in fact.
what we should do to work on the interrupt missing?
Part Number:bq27421-G1
Hi Sir,
As the picture below, some errer happened while process cycle learning, could you please help on this? Thank you.
Part Number:CC2538DK
I use CC2538DK without BBB as border router. The software is 6LBR version 1.4.1. CC2538DK works in router mode.
It works fine while CC2538DK connected with XDS100V3. IPv4 UDP server can get data from IPv6 UDP client.
But when I disconnected XDS100V3 and try CC2538DK works alone, IPv4 UDP server cannot get data from IPv6 UDP client.
How to solve this problem?
Thanks.
Part Number:BQ27GDK000EVM
Hi,
How to connect the EVM to the gauge via the ExtLoad+/Extload- GDK terminal?
I'd like to confirm that the connection should be made on the ExtLoad+/ExtLoad- terminal on the GDK and SYS/GND terminal on the EVM??? and NOT the Vbus/Gnd teerminal on the EVM?
Thanks
Part Number:CC2564C
Hi,
BT stack: CC2564CMSP432BTBLESW
EVM: MSP-EXP432P401R + BOOST-CCEMADAPTER + CC256XCQFN-EM + CC3200AUDBOOST.
The step by step demonstration from HID Demo wiki link ("http://processors.wiki.ti.com/index.php/CC256x_TI_Bluetooth_Stack_HIDDemo_App)") only describe demo between 'host' & 'device' using 2 sets of (above-said) EVMs.
Please advise how to test/demo HID profile between the EVM and Windows-based-PC / mobile-phone (either Android or iOS) ?
How to configure the EVM as HID keyboard device ? and what's command (from the existing sample code) to send keyboard code (or string) from EVM to the 'host) ?
And, is there any sample application source code & step by step demonstration available for HID profile (over BLE) ?
Thank you.
Hello,
I need some guideline and sample code how start use cc3220 network stack
- Need to send/Receive data over HTTPS and UDP
- Need to encrypt/decrypt the data with AES 256
- Need to parse JSON format - is there any library include in the SDK that I can use and if yes, how to use/add it ?
Appreciate any help and code example so I can start work on the application
Thanks
David,
Part Number:AWR1642
Hi,
With the below setup, test on AWR1642 EVM.
start frequency=77GHz,
slop=0 MHZ/us
Rx input is connected to a mixer at 73.6GHz, the expected IF frequency is 77-73.6=3.4GHz
My customer tested in two methods, below figure 1 show the test result in radar studio 0.6.1.1, the signal is very good; figure 2 show the result in mmw demo SDK 1.0, the result is very bad. Compared the below two figures we can find in the figure2 IF signal the phase noise is bigger, and there is one strange band signal label with red circle. Could u pls help give any comments on what would impact the signal quality?
Suggest u can test it at your side just use the mmw demo in SDK 1.0 on awr1642 EVM, set slop=0 to get the IF signal.
Figure1 Result in Radar studio
Figure2 Result in mmw demo SDK 1.0
BR,
Andy
Part Number:CC3120
Hi，
My new project is a wearable medical device. It need WIFI(cc3120) module and BLE&SubG(cc1350) and MCU(MSP432) The system power is Li-Poly(500mAh, 3.7V). It supports USB or Adapter charge.
1, For WIFI(cc3120) power budget: 450mA for 3.3V. PA DCDC:1A;
2, For BLE&SubG(cc1350) power budget: 40mA for 3.3V.
3, For MCU(MSP432) power budget: 30mA for 3.3V.
The schematic suppose as the following:
Question:( Requirement: Low Iq, small Size and High efficiency)
1, Which PMIC?
2, Or some other suggestions?
Thanks,
Andy
Part Number:TMS570LS0332
Tool/software: Code Composer Studio
Now,The way to update the program is create a boot project, and an APP project, jump from the boot project to the APP project,use ((void (*)(void))0xE000)(); is run very well.
But the boot project needs to use FEE, APP project also need to use FEE, so the amount of code is very large,
What can be used to merge the boot project and the APP project into one project?
Part Number:MSP432P401R
Hi,
I want to run the graphical library on MSP432 Launchpad + 320*240 LCD screen from TI.
Go to MSPware, there's code example of graphical library for MSP432.
Download into Launchpad, the screen could be turn on , but no information showed on the screen.
I check the LCD driver in the code is the same with my LCD screen. Could you help give me some tips on the case? Thanks!
Vivian
Part Number:CC2564
When trying to run the CC256x TI Bluetooth Stack SPPLEDemo with a STM32F413 as a host on our own board, the device (CC2564C) does not seem to transmit at all?
When executing a StartScanning command, other devices are shown, however other devices cannot 'see' the CC2564C/SPPLEDemo.
Our board outputs the following initialization data:
OpenStack().
Bluetooth Stack ID: 1
LOW ENERGY Support initialized.
Device Chipset: 4.1
BTPS Version : 4.0.2.1
Project Type : 6
FW Version : 12.26
App Name : SPPLEDemo
App Version : 0.5
LOCAL BD_ADDR: 0x985DAD11F2AD
******************************************************************
* Command Options: Server, Client, Help *
******************************************************************
SPP+LE>
Also please see attached file.
And after executing the following commands: Server, RegisterSPPLE and AdvertiseLE 1, I expect to have the device showing in either the LightBlue app (iOS), my laptops list of Bluetooth devices and/or the Bluetooth sniffer (BPA 100), but no result.
I'm using IAR as IDE, and in the project settings I've added these defines: __SUPPORT_CC256X_PATCH__ and __SUPPORT_LOW_ENERGY__
and also adjusted the CC256X.h in order to build the project (renamed Patch to BasePatch and added LowEnergyPatch and AvprPatch from CC256XB.h).
I find it really interesting that I'm able to see other Bluetooth devices, but they cannot see me? Can you please advise me?
BR
Anders Lange
Part Number:TMS320F28377D
Dears
The fault occurs after programming the serial test program,
The phenomenon can not be programmed for the program,
After testing, found that the DSP core voltage from 1.2V to 1.8V, through the analysis, to confirm the 1.8V voltage DSP problem, remove the DSP after the voltage back to normal.
A total of 40, 4 have a problem, replace the new normal after(Please visit the site to view this file)
Part Number:LAUNCHXL-CC2650
Tool/software: Linux
dear all
i use cc2650 Launchpad as zigbee coordinator using ZNP (CC2650launchpad) + ZAP (Linux home gateway) architecture, i send a température value from zigbee end device (another cc2650launchpad) and read it on linux home gateway application every 10 seconds... I want to to display RSSI value on linux application with each temperaturee reading....does someone have an issue to how to do this ?
thank you
Hi team,
The customer is using AFE4400SPO2EVM. He downloads the GUI software and installs it. The parameters of his computer are as follows:
WIN7, 8GRAM, I5 processor. For the first time, he clicks the capture button to collect the data, but after he collects the data, he needs to take 40 seconds to save
the data. Then he continues to collect the data, but he needs to take 5 minute～30 minute to save the data. The customer would like to know
why he need to take so much time to save the data.
Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments
Part Number:bq76PL455A-Q1
Dear support Team,
I am developing a BMS with bq76PL455A-Q1 chip.I need some information about the IC limitation for choosing the best resistor shunt to do passive balancing.In our case for example we need to have maximum 1.35A .As I understood the limitation is 1W power rating at 25c .So,In my case I need to choose e shunt resistor around 2.5 Ω while it causes the power need of 4.5 w.So how can I face with this limitation?Do you have any other solution more than providing active balancing?
Kind Regrads
Elham
Part Number:TRF370417
Hello,
In the datasheet page 5 , there is the Baseband Inputs specification 1dB input frequency bandwidth.
I have some questions for this specification
(1)
Could you please share the frequency response figure of Baseband inputs?
(2)
Could you please let me know the measurement set up?
Since the BB input is Hi-Z, did you use FET probe for measurement?
Also, is this BW specification differential or single end input ?
Best Regards,
Ryuji
Part Number:AM5718
Chapter 8.4 in http://www.ti.com/lit/ds/sprs957d/sprs957d.pdf about PDN implementation guidance states that "TI supports only designs that follow the board design guidelines contained in the http://www.ti.com/lit/pdf/spraby8 application report.
This report deals with the AM572x MPUs and not the AM571x MPUs. Not a big problem, but what's more of a problem is the recommendations about the decoupling capacitors in table 2.
| Supply | 100 nF | 220 nF | 470 nF | 1 uF | 2.2 uF | 4.7 uF | 22 uF |
| vdd_mpu | 12 | 2 | 2 | 3 | 1 | 1 | 1 |
These recommendations are not perfectly in line with the recommendations at http://processors.wiki.ti.com/index.php/General_hardware_design/BGA_PCB_design/BGA_decoupling that states that:
"Based on the fact that often differing values of capacitors cause more harm than good (because of the resonance possibility listed above), and the fact that with newer capacitor dielectrics, larger value capacitors have the nearly identical high frequency impedance as their smaller value counterparts in the same body size, we recommend using just one value, 0.1uF-0.2uF, in the smallest package manufacturable by your company (this should be 0402 size or smaller). "
Or are the > 100 nF capacitors to be considered as bulk capacitors?
In any case, it's interesting to note that the AM5718 reference design (http://www.ti.com/lit/df/sprr242/sprr242.pdf) definitely doesn't follow the above recommendations.
Different schools within TI?
Best Regards
/F