Part Number:BQ24650
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BQ24650 mosfet select issue , i select IRFR7546,Vgs=2.1-3.7,Vds=Vgs Id=100uA. the BQ24650 datasheet 9.2.2.4 show there is 6v, but dont have Current ,? if the IRFR7546 COULD MATCH with bq24650 ?
Hi, Sir,
i want to do a test the efficiency of openCv run on DRA746 DSP core,how can i get easy way to do the test.
Part Number:TPS2394
I have a few questions on TPS2394.
For the design tool which is titled by "slvc064a. TPS2350_DesignCalculator_RevA",
Q1. there is a note - that is "TPS2350/TPS2394 is intended for low power (<250W)".
This power limit comes from where? - FET driving (sink/source current capability) or other viewpoint?
Q2. During the test, I inceased Cramp (controlling the inrush current's slew rate) to 10nF in order to meet to our customer's spec.
Now, the inrush current met to the spec. but I'm afraid that there are some maximum limit to Cramp value.
Are there any side effects if Cramp is increased?
Thanks
Michael
Part Number:CC3100
Hi,
Under what circumstances will "Device disconnected from the AP on application's request" be printed on debug. This text is coming from inside the callback function "SimpleLinkWlanEventHandler()" under switch-case "SL_WLAN_DISCONNECT_EVENT". The reason for which I am asking this is because nowhere in the code I am calling the function "sl_WlanDisconnect()", but still the event says "application requested the disconnection". Is there any other reason under which this event may be triggered from callback function even if "sl_WlanDisconnect()" is not called at all?
-
Thanks
-
Regards
Soumyajit
Part Number:TPS74801
Hi,
the datasheet states that Ibias will be between 1 and 2 mA.
Do I assume correctly, that this is independent of the load current?
So this LDO always consumes at least 1..2mA unless I disable it?
I need an LDO to generate 1.2V out of 1.8V. In low power mode I have a load current of about 100nA and in full power mode up to 150mA. Any suggestions?
Part Number:TLC5929
Hi,
all signals, including SCLK, SIN, LAT, BLANK are affected by shift_speed / gray_scale_speed change. Basically, when you change from 3 to 2, all signals become faster (on and off times for each signal are shorter) and when you change from 2 to 3, all signals become slower( on and off times for each signal are longer).
In any case, customer having problems even with speed set to 3.
One thing that I discovered last night when testing with revision B board is that it works ok, immediately after the board is powered on. I don't see any ghosting problems and all test patterns look ok, but as soon as I write "function control data", it starts showing ghosting. This happens even if I write the exact same value to "function control data" as it was after power-up, which is E67Fh. To make it clear here are steps that I do:
1. Power off LED module and power it on -----> Everything looks ok, no ghosting
2. Move horizontal line up and down -----> Everything looks ok, no ghosting
3. Send E6F7h to function control data ------> Ghosting starts
I will double-check my FPGA code over next few days to make sure there are no mistakes there, but it seems as soon as I write any function control data, LED driver outputs start to leak some current and that causes ghosting. Here are my questions:
1. Do I need to have all data latches to 0, before I make changes to function control data?
2. Do I need to set BLANK to hight, before I make changes to function control data?
3. Is it possible that default value after power-up for function control data latch is not E67Fh, but some other value?
4. Is there any other way to reset LED driver to the default value, other than power-up reset?
Part Number:TUSB2046B
Hi all!
I've been facing an issue regarding to the TUSB2046B USB HUB. The PCB I have developed is attached to the USB Port of the RPI-Zero.
When i start the device, it seems the 5V is running smootly, 3V3 regulator also works. After 2-4 seconds after power-up I do see 5V on the USB outputs (USB1_5V and USB2_5V), I'm asuming the TUSB2046B and TPS2042 is starting up correctly then? Or am I missing something?
A side note: when i disconnect the RPI-Z, it seems not to be starting up? Do i need the Upstream USB0_DM and USB0_DP in order to activate the device?
When I connect a simple keyboard to the hub it doesn't get recognized I don't see anything happening when I press a key on my keyboard. When I attach the Keyboard directly to the RPI-Z I can type anything, that seems to work, but not with the USB-Hub.
I've already changed some few things:
- Add & Remove the 1K5 pull-up resistor on the USB_DP0 (R1)
- Add & Remove the 1K5 resistor (R19/R20) to XTAL2 (placed a solder bridge instead)
- Removed the 15K pull-up resistor to OC1 & OC2 (R15 & R16)
- Changed the 18pF (C11 & C12) to 27pF.
Where does it goes wrong? Is my schematic correct? It's based upon the provided reference schematic on the TI website.
thanks for any help in advance!
Best regards,
Klaas de Boer | Embedded System Engineer | KEY Electronica
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Part Number:TMS320C6678
Tool/software:TI-RTOS
HI all,
i have a secondary boot loader which will execute directly from the flash. so i would like my SBL to copy main application (SYS-BIOS application) from flash to DDR and start execution from the DDR.
Does anyone know about how to execute code from DDR where SBL will be changing the control of execution to DDR.
Regards,
Noufal P
Part Number:LAUNCHXL-CC2640R2
Tool/software: Code Composer Studio
Please tell me the procedure about writing the uart_write() in the simpleBLE_peripheral() for recieving the data.
Thank you
Part Number:BOOSTXL-DRV8301
Respected Sir/Madam,
Is it safe to drive a BLDC motor with following specifications using the DRV8301 Booster pack (BOOSTXL-DRV8301) and C2000 F28069M piccolo launchpad (LAUNCHXL-F28069M)
PEAK CURRENT : 18A
RATED CURRENT : 10A
VOLTAGE : 24V
Thank you
Regards,
Vignesh.J
Part Number:TL783
Dear Support member.
My customer used TL783.
I would like to configure it in two series for the purpose of distributing the voltage at the time of rush.
Is there a problem with how to use like this?
I attached about question file.
Could you check attached file?
Best regard.
Bob Lee.
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Part Number:CC-DEVPACK-DEBUG
My devpack doesn't get powered or recognized from USB. Tried multiple computers and have another one that works fine.
This is surely a hardware issue but TI store requires posting before a replacement can be sent.
Part Number:BQ2002
Hello,
I think there are battery charger to do slow charge like 0.1C if fully discharged NiMH battery till the charge exceed a threshold.
It seems bq2002 doesn't support this. Is my understanding correct?
If my understanding is correct, is there a charger IC for NiMH battery supporting full discharged connection.
Best regards,
Toshihiro Watanabe
Part Number:CC2650STK
My SimpleLink doesn't get powered or recognized from USB. Tried multiple computers and have another one that works fine.
This is surely a hardware issue but TI store requires posting beforea a replacement can be sent.
Part Number:TM4C123GH6PZ
Hi, I am trying to interface the TFT touch screen, I am able to interface the LCD controller but having trouble in interfacing the touch controller,
Details of the Controllers:
Microcontroller : TM4C123GH6PZ
Touch screen Controller : XPT2046 (Resistive, 4 wire)
the TFT I'm using is Waveshare's 3.5 inch 320x480 Touch Shield.
anyone having the solution then please share.
Thank you.
Part Number:66AK2H14
Tool/software:TI-RTOS
Hi,
I use evm 66AK2H14 board, I have a question that:
I setup a 10 Gbits ethernet port to receive data from another device. Each frame data contain 2 block: block A and block B. Can I use DSP core Pac 1 to process block A, DSP core Pac 2 to process block B,... (multicores DSP) by Multicore Navigator simultaneously? How can I do it?
Brgs,
Part Number:CC1310
Hello,
I am a beginner in LoRaWAN. I have bought one CC1310 development kit. I would like to know if it is possible to use CC1310 with a Raspberry Pi to work as a Gateway and set up the network. I would be grateful if someone can provide me Resources and recipes to build the gateway to a cloud system only if it is possible.
Regards
Part Number:TMS570LS0432
Hi all,
I am trying to establish CAN communication between two TMS570LS0432 boards. I generated the code for the same from Halcogen
Have cross connected the DCANTx and DCANRX pins of boards with common GND
Frames were not getting transmitted when I debugged it is showing Bit0 error in the transmitter and stuff error in the receiver
Boards are working fine in loop back modes
Problem comes when I try to transmit frames between the boards
Can anyone please tell me solution for this problem?
Part Number:ADS1148
Hi all
Would you mind if we ask ADS1148?
<Question1>
Our customer would like to set DRDY MODE as "1: DOUT/DRDY pin functions both as Data Out and Data Ready".
In order to access IDAC0—IDAC Control Register 0, does it require set START=High?
On the table.15's remark, there is the description "When the START pin is low or the device is in power-down mode, only the RDATA, RDATAC, SDATAC, WAKEUP, and NOP commands can be issued."
So, in order to select WREG command, we assume that START pin requires high level before register access.
<Question2>
About WREG command, does it regure to care the DRDY timing?
We assume that it doesn't matter.
<Question3>
About RREG command, does it regure to care the DRDY timing also?
We assume that it doesn't matter.
<Question4>
In despite of new RDATA command or RDATAC command issue, as DIN keeps outout NOP, is it possible to read AD conversion data?
As the background of this question, it is relation to 9.5.3.6 RDATAC (0001 010x) on the datasheet P39.
We appreciate your help always.
Kind regards,
Hirotaka Matsumoto