I have a customer who used to design with our TNETV solutions. They are looking for alternatives with the following requirements:
Do we have anything that can meet this need?
Thanks.
Part Number: LM7171
I am using the LM7171 as a high frequency high gain amplifier. Below is my circuit configuration I am using. I put a 2pF compensation capacitor as suggested by the data sheet and this works initially. When i connect a 50 ohm impedance bnc connector to the input the oscillation returns. Attached is a screenshot of that oscillation. How would I model the bnc connector to adjust the compensation capacitor?
Part Number: RM46L852
Hi,
I noticed IRQs cannot preempt each other. Wondering how RTOS (e.g. FreeRTOS) accomplishes prioritized scheduled tasks on this chip?
We do not want to use an RTOS, looking for a way to do this without RTOS.
Thanks,
Peman
Part Number: TPS2561A-Q1
I am trying to run simulations on the TPS2561 and TPS2513 using the TINA software. However, when I compile the imported PSpice netlist for these components, it gives me the error: "Invalid Device: $CDNENCSTART". Is there something I should change this line to in order to get the file to compile? If not, how should I go about solving this issue?
Thank you.
Part Number: PGA411Q1EVM
Hi
Can you help me to interface the Pga411q1evm with arduino I want to receive the angle and velocity by spi
Thank you
Part Number: LAUNCHXL-CC1352P
https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/830897 helped but have some additional BLE Long Range questions for LAUNCHXL-CC1352P-2.
1. When running BLE Simple Central/Peripheral as 20 dBm PA (assume RF Control Truth Table 010), is the bottom RF path (V1 on Skyworks U32) being used?
2. Is the RF Sheild necessary for BLE or sub-1 GHz (or 20 dBm PA)? Can a customer pass RF compliance (FCC, ETSI, etc.) without it?
3. Why is there an external SPI Flash on LAUNCHXL-CC1352P-2 (p. 2 of schematic)? Is it needed for production?
Part Number: MSP432P401R
Tool/software: Code Composer Studio
Hi,
We have encountered a strange issue programming a custom board based on the 64-pin MSP432P401RIRGCR. Initial development of the firmware was completed on the 100-pin MSP432 launchpad with no issues. After receiving proto boards, we confirmed the boards were functional by programming them using CCS with a standard TI example: gpio_toggle_output_MSP_EXP432P401R_nortos_gcc
However, after we booted our custom firmware running TI-RTOS onto the proto boards, we have seemingly bricked the micro and are unable to factory reset the devices.
The sequence of steps that led to the failure were:
1. Custom firmware was loaded via CCS debug option
2. After successfully being programmed, standard resume / terminate options in CCS pop up as normal, indicating program is ready to run.
3. After selecting resume, we get the error shown below in the console after a few seconds
At this point the board cannot be factory reset by the standard procedure. Once you select the Target Configuration (Launch selected configuration) -> show all cores and then select "Connect", you get the following error:
However, when you test the JTAG connection via target configuration, the JTAG integrity test succeeds which means the XDS110 still sees the MSP432.
As far as I am aware, there are no special steps required within the project to port the firmware from a 100-pin to a 64-pin MSP432. Is this correct? Both the launchpad and the MSP432P401RIRGCR have the same amount of Flash and RAM.
I have also attached our MSP_EXP432P401R.c/MSP_EXP432P401R.h files which maps the hardware on the custom board to our hardware abstracted firmware.
(Please visit the site to view this file)(Please visit the site to view this file)
So far, we have encountered the same bricked board failure mode with 2 proto-boards. Our schematic is based on a previous custom designed board we made with the 100-pin micro and can be provided via IM.
Please let me know if you have any suggestions how to proceed?
Thanks,
Robert
Part Number: LAUNCHXL-F28379D
I am trying to load my program in launchxl f28379d and when I try to run it the following message from CCS 8.3 comes up and my program does not work.
Part Number: BQ24120
Hello,
Can you please help confirm if the denominator below should be Icharge or Iprecharge?
Thank you!
Part Number: TLC5943
Hello,
For the grayscale (GS) data in TLC5943, how frequently can we write it in application? For example, change the GS value every 5 seconds? Will this operation damage the device?
The grayscale control clock (GSclk) has a frequency of 33 MHz max. To be clear, does this mean we can write the GS data every 30 ns when using the max freq? There is no min mentioned on the datasheet, but is it possible to achieve the desired 5 seconds by adjusting the GSclk?
Thank you,
Ishraq
Part Number: TMS320F28379D
In order to provide max benefit offered by Delfino control laws, how would one derive isolated output voltage for feeding back to the MCU to the appropriate ADC inputs? Traditional methods offered by UC3901 already has error amp etc which needs to be compensated the old fashioned way & thus the converter would lose its adaptability. Is there any application notes on this subject using other techniques of isolation?
-A related matter will be to integrate this with Delfino control card we plan to use to demo our hardware,
-will appreciate any help in solving this issue.
r
Part Number: DRV8813
How does the DRV8813 respond to an open load condition, e.g. one or both phase outputs get disconnected from the target motor?
Does the nFAULT output activate?
Then, how does the DRV8813 respond / behave if the motor is reconnected? Can it "self-recover" and continue running the motor based on the input controls, or does it need its nRESET pin toggled, or ??
thanks
Part Number: ADS8910B
Do we have any application notes about the usage of SPI interface in ADS8910B?
My MSP432/C2000 SPI is byte bound. In other words, I only can read 1 bytes at a time. I could not read 18 bit at a time. So, I guess I will have to read 3 bytes from ADS and throw away the last 6 bits. And the MCU will hold the CS line LOW for the entire 3 bytes reading period. Will this way work? Will this affect the other register bits inside ADS?
Thanks
Wen
Part Number: OPA2188
hi sir
Does the opa2188 power rail can accept the +36, 0v?
In the circuit, I use the ADI/ADA4077 is ok, but change to TI/OPA2188, the circuit can't work,please advise it,thanks
Part Number: MSP430FR5969
Hi,
My customer wants to count incoming pulse edges with MSP430FR5969.
I think it is possible to connect the signal to Timer-A CLK.
For example, TA0CLK (P1.2) can be used.
To minimize power consumption, the chip is in LPM and periodically waken up by an external interrupt or RTC.
In this case;
- Timer is clocked by an external clock from P1.2
- RTC is clocked by 32k VFXT Oscillator
So I guess LPM4 can be used, correct?
Thanks and regards,
Koichiro Tashiro
Part Number: TPS54719
Hi,
If not use ULVO of TPS54719, Should I float or pull up-down EN(15 pin) ? if need to pull up or down, what's value of the resistor
Part Number: ADS8688
Dear team,
I am testing our ADS8688A EVM and my input signal is a DC voltage from 0V to 5V.
Use the input range of 0~5.12V,
connect the OPA2209 filter between input DC signal and ADC input pin. then the ADC output error is extremely larger: 2V DC Vin, ADC output 1.698V, as shown in following picture.
Here is some test results during debug.
The voltage in A0+ of J25 is 2V DC, but voltage in J8 pin is 1.69V, so the ADC input pin voltage is 1.69V.
So I think this error between 2V and 1.69V ADC output is come from OPA2209 circuit, but this is only a 2nd order LPF.
Can you give me some help on this issue? Thank you!
By the way, when I direct input the signal to ADC input pin, there is not so much error.
Best regards
Yunjing
Part Number: DS90UB934-Q1
Hi team,
If VDDIO for ub934 is 1.8V, can we directly pull up ub934's SDA and SCL to 3.3V?
Thanks.
Hello
we need a audio switch IC which can keep the status of on without power and on/off can be controlled when powered on.
Is there any solutions?
Thanks
Part Number: P82B715
Hello.,
BUFFER IC VCC 3.3V
and MASTER is 3V, I2C PULL-HIGH was 3V also
then through 715 to SLAVE side PULL-HIGH all 3.3V
is there any concern for the application, thanks
