Part Number:TMS320F28069
hello，
Can i use custom library functions in CLA?For example, I create a float library function, does CLA can call this lib? thank you !
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TMS320F28069: CLA LIB
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TPS22970: TPS22970 Inrush current
Part Number:TPS22970
Dear E2E:
i read tps22970 datasheet and confused in page 13. maximum inrush current=2.5A Cl=800uf introduction.
I Have used tps22925 in datasheet page 18. CL=1uf, maximum acceptable inrush current =40mA.
Does tps22970 maximun inrush current the same meaning as tps22925. maximum acceptable inrush current.? thanks.
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TMS320F28377D: About QPOSCNT register of F28377D
Part Number:TMS320F28377D
I have a issue about QPOSCNT register of F28377D. The issue was encountered when using TMS320F28377D for multi-motor control.
1. The same motor control algorithm runs on CPU 1 and CPU 2. When the QPOSCNT is read in CPU 2, QPOSCNT will as 0 or QPOSMAX sometimes. The result is that the overshoot of the algorithm causes the system over-current protection, and occasionally shake after several times in the adjustment process.
2. In addition, during the early stage of this project, when readiing eqep1regs.QFLG.Bit.IEL for 1, QPOSCNT can not be initialized to 0. The probability of occurrence of this phenomenon is very high.
The engineer of TI can help answer the questions about QPOSCNT?
Thanks and regards
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TPS2492: MOSFET Selection - Secondary Breakdown
Part Number:TPS2492
Datasheet Page 26
M1 Selection
Use of a power FET in the linear region places large, long term stresses on the distributed junction. FETs whose safe operating area (SOA) curves display multiple slopes on the same line (e.g. a line whose time parameter is a constant) in the region of high voltage and low current generally are susceptible to secondary breakdown and are not strong candidates for this application. An example of a good choice is found in the Typical Application Circuit where the line at 10 ms shows no breaks in slope. The best device for the application is not always the lowest RDSON device.
I thought RDS(ON) and thermal resistance are most important so less cooling measures are required for the MOSFET.
I don't really understand why SOA with multiple slopes are not strong candidates. Any advice?
Is secondary breakdown same as avalanche? I thought all power MOSFETs are subjected to avalanche, right?
Thanks.
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TS5MP646: 2:1 MIPI switch solution
Part Number:TS5MP646
Hi team,
My customer wants to use TS5MP646 as a 2:1 MIPI switch. However, the pads are too near to place the trace, and they have to use buried blind via. The cost is too high for them. So I'd like to check is there any other solution for 2:1 MIPI switch with other package?
The requirement is:
1. 4 lane mipi CSI signal
2. Less than 1.5Gbps/lane
Thanks,
Cera
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CCS/MSP432E401Y: Usb enumerate a serial port device.
Part Number:MSP432E401Y
Tool/software: Code Composer Studio
I want to use the usb port of the msp432E401y chip to act as host device, need to support enumeration custom device types. For example, support a （USB to serial port ）device
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Linux/PROCESSOR-SDK-DRA7X: VSDK which time statistic function can be use on eve core
Part Number:PROCESSOR-SDK-DRA7X
Tool/software: Linux
Hi Sir,
which time statistic function can be used on eve core ? Can this function "Utils_getCurGlobalTimeInUsec" be used on eve core, and provide accurate time statistic ?
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c2000 gang
Dear all,
The program file is placed in an external memory such as an SD card or directly stored in the internal chip of the c2000 gang. If it is the latter, it will be more reliable and safe, and easy to control.
Is it possible to control the number of programming chips?
Thank you.
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DS90LV048A: Equivalent circuit of input pins
Part Number:DS90LV048A
Hi team,
Could you provide the equivalent circuit of input-pin to me? It seems the customer would like to confirm the fail-safe circuit for input-pin inside.
Thanks & Best regards,
Ishida
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LAUNCHXL-CC2640R2: About the packet sniffer for BLE 5.0 / BLE 4.0 above
Part Number:LAUNCHXL-CC2640R2
Dear Sirs,
Does TI have any the packet sniffer for BLE 5.0 / BLE 4.2 that run at the LAUNCHXL-CC2640R2 or other BLE evaluation board ? Thanks.
Best Regards,
Bolo
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OPA2188: opa2188 use
Part Number:OPA2188
Dear
Attach is the circuit design, can you help to check such value of resistance and capacitance ,can realize the double magnification function of signal. Thank you~(Please visit the site to view this file)
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CC2530: Poll Control Configuration fields
Part Number:CC2530
Thank you YK Chen. I'm now able to properly implement the poll cluster ZCL in my application. Now I want to test the failure conditions in my application. For ex - from the specification, If the Poll Control Server receives a Check-In Response from a client for which there is a binding (bound) with an invalid fast poll interval it SHOULD respond with a Default Response with status INVALID_VALUE. How do I implement this? What function should I use to reply back to client?
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TLV320AIC3104: Question of TLV320AIC3104 Power Sequence
Part Number:TLV320AIC3104
Hi Sirs,
Customer got TLV320AIC3104 malfunction problem and could not be restarted by a soft reset, the only way is HW reboot (unplugged and plugged supply again).
We assume it is a power up sequence problem.
There is reset chart with the TLV320AIC3104 datasheet but 1.8V and 3.3V sequences were not included. We also confirmed that customer meets 10ns delay between power supply and reset signal.
Would you please review the enclosed power up sequence and advise 1.8V and 3.3V power up sequence specification of the TLV320AIC3104 device?
Thank you and Best regards,
Wayne Chen
05/16/2018
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ADS1220: AVDD & DVDD conect to Power supply with a bread(BLM18PG181SN1,Maruta) May cause problem of Internal Reference?
Part Number:ADS1220
Hi,
In the question ADS1259: REFOUT voltage drift over 7mV ,the bread(L14 L16) cause the REFOUT changing from 2.5V to 2.53V.
Dose ADS1220 have the same problem?
Should I change L3 & L7 to 0 Ohm resistance?
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PCM1865: Digital PDM Microphone
Part Number:PCM1865
Hi Champ,
Due to do debugging the Digital Microphone, My customer would like to use PCM1865EVM. I understood that customer would be able to input audio data into PCM1865EVM because there is detail description in Datasheet “9.3.8.2 Digital PDM Microphones”. Regarding Audio-data-out, customer would like to verify/confirm this sound on PC.I tried to check PCM1865 datasheet/ PCM1865 EVM User Guide, I could not find the detail information about this.
Is it possible to confirm audio sound on PC via USB?
I appreciate your Expert’s comments on this.
Best regards,
Miyazaki
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TMS320F28335: F28335 cmd
Part Number:TMS320F28335
Dear all,
By viewing the F28335.cmd and DSP2833x_Headers_nonBIOS.cmd file, I have some questions about CSM_PWL:
CSM_PWL : origin = 0x33FFF8, length = 0x000008
Both page1 and page0 are allocated space, the address is the same, and the compiler will not complain. Which area will be allocated to it after compilation? Will this cause the chip to be locked?
thank you.
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TOF
What is the resolution of ToF sensor ?
What is the key factor to affect resolution ?
Is there any method to improve resolution in the future ?
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DRV5053: Saturation voltage
Part Number:DRV5053
We use these hall sensors already some time now without problems.
However we had trouble with moisture on the boards leading to all kind of erratic readings .
Now we are in the process of rugedising our software ,as to trigger alarm signals with readings that simply cannot be possible.
As such we implemented a check on the minimal/and maximal voltage that the Hall sensor can possibly deliver. If its outside this range ,something must be wrong with the board.
So we check on the Vout min and Vout max as specified in the datasheet in table 6.7 . The values being 0.2V and 1.8V respectively.
After implementing this check we get errors from perfectly good boards , we see Hall sensors giving output voltages up to 1.84V.
Are we doing something wrong here? did we make some wrong assumptions or is there something wrong with the spec in the datasheet?
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CSD87350Q5D: ESD SPEC
Part Number:CSD87350Q5D
hi
The ESD specification of CSD87350Q5D could not be found in the datasheet.
Could you tell me the specifications?
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TPS61169: TPS61169 thermal issue
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