Part Number:DP83822H
Hey team,
There is a specification section for a 25MHz oscillator in the DP83822 datasheet.
It specifies a Load capacitance. Is this the load capacitance that the oscillator must be able to drive, or the load capacitance that will be on the crystal from the DP83822?
-specific PN - DP83822HRHBT
Part Number:TCAN1042GV-Q1
Hi,
Please advise if the exposed thermal pad of the VSON package variants (e.g. TCAN1042GVDRBR-Q1) can be connected to GND or should the thermal pad be left floating as this does not appear to be mentioned in the current datasheet (SLLSES9B –FEBRUARY 2016–REVISED MAY 2017)?
Regards,
Part Number:MMWAVE-SDK
Hi,
I am new to the mmWave SDK. I was wondering if there was a User guide available for ver1.2. The only version I found was 1.0 which was out of date. Also, whether there was a version of the capture demo on the 1.2 SDK
--Jeff
Part Number:CC2640
Tool/software:TI-RTOS
CC2640. BLE Stack 2.2.2. Simple Peripheral based application
Ti Flash Programmer 2 settings enabled to not erase + not program page 30 in order to preserve the NVM/SNV. Thus, pages 0-29 and page 31 are erased and programmed. However, I'm seeing odd behavior with the application...it involves a read/write to the SNV in processing a BLE command. The issue goes away when I enable the "Keep CCFG" checkbox in the flash programmer -- while still having the settings set to erase+program page 31. Also, the application works as expected when I run via XDS200 debugger.
If I elect to erase+program page 31 (the CCFG area as I understand it), does this lead to this type of misbehavior? It's as if the command is processed, but an issue with the SNV and/or some other strange issue comes up. Is a flag enabled/disabled? Thanks!
Part Number:DRV110EVM
I am using a DRV110EVM board to energize a 24V solenoid to drive a spray nozzle.
Settings:
-JP1, JP2, JP3 close, JP4-9 open
-Pot R4, R5, R6 fully CCW
-Pot R3 fully CW
-24 VDC supply connected to P1-1 and P1-3
-Solenoid coil connected to P1-2 & P1-4
Solenoid coil type: Burkert 10W 24V coil, 55 Ohms
I am trying to trigger the coil by applying 3-5V to TP3 (EN). I cannot get any solenoid activation. I also accidentally jumpered JP6 and caused fuse F2 to blow immediately. I will resolder a new one and try again. Any clues on what I am doing wrong?
Part Number:PCM2906C
Can the vendor and product strings can be edited in the device descriptor? Is this what the OS reads out to users that interface with this device? If this IC is used in a system it would be ideal to have the system name or number as the device description.
Part Number:CC3100
Hello,
We have a MCU connected to an on-board CC3100 chip. We are able to accomplish the following:
- Format attached flash memory.
- Deliver ServicePack from MCU to CC3100.
Upon the completion of delivering the ServicePack to the CC3100, we call sl_Stop() to set the device under hibernate. Then we call sl_Start again to start sending WIFI data, but the CC3100 does not assert an interrupt signal like we are expecting when the device is brought out of hibernate mode.
Parameters we know:
- SPI fully works since the ServicePack is being delivered.
- We see the hibernate signal is going high and low as expected, the time period between de-assertion and assertion being 12ms, to respect the minimum 10ms hibernate time.
- Resetting the CC3100 with nReset in addition to nHibernate does cause the CC3100 to start communicating again.
- We are using the microcontroller to send out the slow clock pulse. This has been verified with our scope and the negative slow clock pin, pin 52, is being pulled up to the CC3100's supply voltage.
Thank you for your time.
- Bob
Hello,
We have a customer is building a balanced receiver for a LIDAR application, who is looking for a transimpedance amplifier capable of the following:
300MHZ (ideally 600MHZ or more)
differential outputs
For LIDAR applications, do we have any recommendations for a TIA?
Thanks,
Part Number:CC3200-LAUNCHXL
I am having trouble running the CC3200 Project 0 for Wifi pinging. Everything is loaded on my C: TI directory, and I get all the way up to building the common.h file (in wlan_station) yet CCS fails to find a "compiler.opt" file. Can you guys cross reference and find where it is located (see the highlighted error)
Part Number:DRV421
my application is fault-current sensors（Maximum resolution is 1mA），so a large Rshunt is necessary to ensure the accuracy of measurement.
But when Rshunt gets the K level resistance ，my zero point output voltage is drifting so big（theoretical value 2.5V）.
The test found that the R5 Dummy shunt resistance given in the specification can not compensate for the whole zero drift.
Only the Rshunt is less than the hour (100 Ω), the drift is small, but the precision of the measurement is difficult to guarantee.
The initial judgment is that the internal H bridge circuit has caused the impact on the Rshunt resistance and differential operation, and the differential input impedance of the internal differential op amp is 20K.
Please ask me how I should solve the whole problem. The scope of accuracy is guaranteed while the zero drift is minimum.
Part Number:TMS320F28069
Hello,
I'm using one of the HRPWM signal outputs to generate a 'clock' - call that "X" MHz. I am using the EPWMSYNCI signal which consists of a few signals that are ANDed together; and that SYNCI signal has a duty cycle of ~50%; and the longest period it could be deasserted is 500mS. I was using the EPWM7A output; but I have moved this to EPWM2A and am using both of those outputs now; not that this affects anything regarding to what I think is like a 'dead band' for lack of a better description right now.
When the EPWMSYNCI signal is valid (the AND is '1') - the output of 'X'MHz is fine; but when the signal is invalid (the AND is '0') - I'm seeing a sort of 'drift' of the 'X'MHz signal. The signal on EPWM2A (configured of course as HRPWM) - tends to drift somewhat. I wanted to know if this is something expected or maybe I have a configuration bit not set correctly; but once the SYNCI signal is valid again; all is well. I just didn't think this could drift a bit for the time the EPWMSYNCI wasn't valid. In addition to looking at this on a scope; I have a calibrated frequency counter on the output of the EPWM2A signal and the output frequency does change slightly during the period EPWMSYNCI isn't valid.
I also don't currently require the SYNCO to be used; I suppose it's OK to not have this configured even though I'm using the SYNCI signal; but it would be nice to have TI confirm this.
Thanks,
John W.
Part Number:TMS320F28377S
Tool/software: Code Composer Studio
I am working on CCS VER 6.2.0.00050 . and I using sprintf in many place to display some floating point value on GLCD. But when I try to add a new function in my code then in debugging mode my processor stack at one place"interrupt void illegal_isr (void)"(see attachment). please tell why
this happen and what is solution.
Part Number:CC2650
Hi
I am using ble_cc26xx_2_00_00_42893 with IAR version 7.70.1.11486 .
First time after programming, and also when I reset the CPU with programmer the CPU works correctly. but when I reset it by hardware, it does not work.
please help.
Part Number:PROCESSOR-SDK-AM437X
Tool/software: Linux
Hi sir:
could you give me a hand for my trobules?
For use the proccessor AM437X uart4,using the devicetree am437x-sk-evm.dts in SDK 04.03.00.05, I have MUX the uart0_ctsn and uart0_rtsn pins in mode 1 for uart4_rxd and uart4_txd .The configration of the pinmux is as follow picture.But when I use the system call function " open / close and read/write" to construct a serial communication. It's cames about that there is signals in the master's TXD and also there is signals in the slaver's RXD ,it comfirmed by the oscilloscope. But I can't have the data transmited by the master TXD by using the system call function "read" to operate "/dev/ttyS4" , the slaver's uart4. The code is also attached as below.
I'm appreciate for your reply .
The code:
Part Number:TPS63051
i downloaded ultralibrarian model for the TPS63051YFFR and find that schematic library and PCB library does not match each other. in other words, pins does not match between schematic library and PCB library.
moreover, the schematic library is wrong! can anyone encounter the same issue?
BR
pragash
Part Number:CC2640R2F
Tool/software:TI-RTOS
when i use two CC2640R2F ,they can not pair with each other, whatever which one i chose as the master or the slave,but when i use CC2540 as master and CC2640R2F as slave ,they can pair,or use CC2540/CC2650 as slave and CC2640R2F as master can also pair successfully,i do not known why,someone can help me ?
Part Number:CC2530
hi
how can i be sure that data has received by coordinator?
in f8wConfig.cfg i change this
-DAPSC_MAX_FRAME_RETRIES=30 it was 3 and i change it to 30
-DNWK_MAX_DATA_RETRIES=5 it was 2 and i change it to 5
i change this thing above to be sure that data will receive by coordinator
is it ok that i did that?
do u have any suggestion for me to do to be sure that data will recieve by coordinator?
thanks allot
i have filled up form and i got approval for sample request up to 5 pcs. However, im unable to request the sample. i know this issue is not related to this forum but i dont know where to post this issue! please help.
BR
pragash