Part Number:CC2640R2F
Tool/software: TI-RTOS
Hi,
I am working a CC640R2f based chip and i was wondering if the simplelink_cc2640r2_sdk_1_40_00_45 is compatible, or do i need to migrate to simplelink_cc2640r2_sdk_3_10_00_15 ?
Jameel
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RTOS/CC2640R2F: CC2640R2f and simplelink_cc2640r2_sdk_1_40_00_45
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AM4379: AM437x Industrial EVM
Part Number:AM4379
According to the BOM, the 24 MHz crystal (ref. Y1) used in this board is
Suntsu Inc SCM18B-24.000MHz TR
Is it possibile to have its datasheet?
Thanks in advance.
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ADS1298: SPI communication
Part Number:ADS1298
Hello,
I have been trying to connect the ADS1298 with an ODROID C1 through SPI. I have the 4 SPI channels and 2 signals for the Reset and the Start pins.
I have issues with the actual sending of the commands SDATAC and the read ID, also with sending the START but I can go arround by connecting it to one of the GPIO pins of the ODROID and driving it HIGH or LOW.
My code is bellow I hope you can help me.
I have verified steps 1, 2, 4, 5 and 6 in [FAQ] ADS129x: How do I verify that my ADS129x device is still functional?; and steps 1 and 2 in [FAQ] ADS129x: I'm having trouble communicating with my ADS129x device via SPI. What debug steps I should try?. AdditinallyI know the SPI communication is working since I verified that when the MOSI and MISO channels were connected together the messages were passing correctly.
Thank you very much for your time in advance and if there is any extra info you need ask me please,
Best,
Sofia
import os import time import RPi.GPIO as GPIO import wiringpi wiringpi.wiringPiSetupGpio() # For /sys/class/gpio with GPIO pin numbering START = 0x08 SDATAC = 0x11 RREG = 0x20 ID = 0x00 channel = 0 speed = 3906250 mode = 1 Fd = wiringpi.wiringPiSPISetupMode (channel, speed, mode) print Fd ### Reset pin High ### wiringpi.pinMode(100, 1) # Set pin 6 to 1 ( OUTPUT ) wiringpi.digitalWrite(100, 1) # Write 1 ( HIGH ) to pin 6 pin = wiringpi.digitalRead(100) # Read pin 6. print pin time.sleep(0.5) # secs --> tPOR > 2^18tCLK; internal fCLK = 2.048 MHz; tPOR = 0.128sec ### Reset pulse ### wiringpi.pinMode(100, 1) # Set pin 6 to 1 ( OUTPUT ) wiringpi.digitalWrite(100, 0) # Write 1 ( HIGH ) to pin 6 time.sleep(0.1) # secs --> sleep >2xtCLK; internal fCLK = 2.048 MHz; tRST = 0.0000009765625sec wiringpi.digitalWrite(100, 1) # Write 1 ( HIGH ) to pin 6 time.sleep(0.1) # secs --> sleet tRST - 18 tCLKs; 18 tCLKs = 000000087890625sec #########Setting SPI communications####### #### Registers can then be writen #### print "SDATAC Command" buf = bytes([SDATAC]) SDATACreturn = wiringpi.wiringPiSPIDataRW(channel, buf) print SDATACreturn time.sleep(0.5) print "START Command" wiringpi.pinMode(116, 1) # Set pin 6 to 1 ( OUTPUT ) wiringpi.digitalWrite(116, 1) # Write 1 ( HIGH ) to pin 6 time.sleep(0.1) # secs --> sleep >2xtCLK; internal fCLK = 2.048 MHz; tRST = 0.0000009765625sec buf = bytes([RREG, ID]) ID_return = wiringpi.wiringPiSPIDataRW(channel, buf) print ID_return
[FAQ] ADS129x: I'm having trouble communicating with my ADS129x device via SPI. What debug steps I should try?
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LMH1983: LMH1983 startup failure
Part Number:LMH1983
Hi,
I have added the LMH1983 and it fails to startup for some reason. There is also an LMH1981 on the PCB connected and it operates fine feeding back a Vsync & Hsync to the LMH1983.
The VCXO is oscillating @ 27MHz.
I can see the PLL1 output sometimes tries to oscillate @ 27MHz for a few milliseconds after powerup but then dies, other times it doesn't have any output at powerup.
I have the option of fitting the LMP7711 but at present the VC_LPF is fed back directly to the VCXO (CTS 357LB3I027M000).
I erroneously omitted adding the CP, CS & RS components to the PCB layout, will this be the issue? I have strapped on the CP = 1uF but still no joy.
Should have stated, I was trying to access I2C registers and the device does ACK but readback always gives 0x2A, I suspect this is the 0x00 register contents and that the address is not being decoded as the 27MHz PLL1 is not running?
thanks,
Paul
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CSD18510KCS: How can I get and ADS model of this device?
Part Number:CSD18510KCS
Hello,
I need an ADS model of this device. Could you please provide it?
Thanks!
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BQ24725: BQ24725 can not charge
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AFE4300: TI AFE Solution for heart rate monitor of body fat scale
Part Number:AFE4300
Dear Colleague,
Now a medical customer wants to realize heart rate monitor function in body fat scale, I find AFE4300 is for weight scale, but I find it is not for heart rate monitor.
So do you have any suggestions on it?
Do we have any hero device or TIDA?
Thanks a lot!
Best Regards,
Rock Su
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TPS63001: TPS63001 Maximum Output Current vs Input Voltage
Part Number:TPS63001
Hello,
I have a problem about the Maximum Output Current vs Input Voltage.
I respect the reference design. However, in this conditions:
- Vin = 2 V
- Iout = 300 mA
The Vout voltage is only 2.7 V instead of 3.3V. While on the datasheet, page 6, the current should be 600 mA.
Do you have an idea about this problem ?
Best regards
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TLK3134: PLOOP and SLOOP
Part Number:TLK3134
Hi Team,
1)
I believe "PLOOP pin = high" leads to Figure 2-3 and "SLOOP pin = high" leads to Figure 2-2 without setting registers.
Is my understanding correct?
-------------------------------------------------------------
2)
If the answer for 1) is yes, what is occured when "PLOOP pin = high" and "SLOOP pin = high"?
3)
Could you tell me how to configure the following Figure 2-4?
-----------------------------------------------------------------------
Figure 2-4 shows the TLK3134 in a custom application example with mixed modes per Channel.
• Channel 1 in Parallel independent loopback mode
• Channel 3 in Serial independent loopback mode
• Channel 0 & 2 in independent channel transceiver mode
-----------------------------------------------------------------------
Best Regards,
Yaita
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SN74LVC1G97: Maximum frequency supported
Part Number:SN74LVC1G97
Hi,
It looks as though in figure 12 of datasheet that the propagation delay between input and output signals is around 4ns. Does this mean that maximum switching frequency of input signal is 250MHz? If more than 250MHz it would seem the output wouldn't settle in time for next switch pulse on input. Just want to clarify for customer.
Thanks,
Jeramie
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DLP5531Q1EVM: DLP5531-Q1 EVM Formatter Board Faulty
Part Number:DLP5531Q1EVM
Hello,
I have an evaluation board from you, DLP5531Q1EVM, and when I try to display an image, on the DMD, image is wrong, only half is displayed. Also in GUI I have an error: DMD Training Error.
Also, i put another DLP5531-Q1 EVM Formatter Board with the same DMD and image was OK. It looks like a faulty DLP5531-Q1 EVM Formatter Board.
What is your opinion?
Thank you,
Marian.
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CCS/TMS320F28335: Emulator XDS510 USB with Code Composer Studio 9.x and higher
Part Number:TMS320F28335
Tool/software: Code Composer Studio
Hello All,
I am attempting to upgrade out project to CCS 9.x and noticed it does not seem to support the XDS510USB JTag emulator any more. Went to the spectrum digital website and it states it is only supported thru 8.x...
Is this permanent? or with the XDS510 USB be supported by 9.x in the future?
Per the spectrum digital website:
"Compatible with the Code Composer Studio versions 3.1 through 8.x from Texas Instruments
(Not compatible with Code Composer Studio version 9.x and later)"
Thanks,
-mike
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CC2564MODA: BLE bonding issue after an A2DP connection
Part Number:CC2564MODA
Hi TI team,
I'm working on the BLE pairing process of my application (using Bluetopia stack) and for now, all is working great. Here is my connection / Pairing process :
- Mobile central connect to my device.
- When Mobile read/write a characteristic, we initiaite the bonding process (pairable mode : EnableSecureSimplePairing) and store the IRK (Like this we can indentify a device LE address as resolvable)
Sometimes, the BLE bonding blocked after the event callback latPairingStatus (which return success btw) and I can't read/write my characteristics (it looks likes the GATT server callback is not accessed anymore). I have to disconnect and reconnect BLE to access my characteristics.
The problem occurs each time i connect in A2DP through smarthpone settings before initiate the BLE bonding.
I captured the fw logs of the CC2564MODA through the Logger app.
Here is the step i made :
- Connect audio through the android settings
- Connect ble through the app Nrf connect
- Read a characteristic to initiate bonding
Thanks in advance =)
(Please visit the site to view this file)
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LM5160: Negative Input and Flybuck
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CC3220MODA: ATS support
Part Number:CC3220MODA
Hi
The customer want to connect CC3220 and iPhone over HTTPS supporting ATS.
Could you please tell us how to set CC3220MODA to support some of following cipher suites?
• TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
• TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
BestRegards
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TPS55165-Q1: Boost Problem
Part Number:TPS55165-Q1
Hi, Im having troubles using TPS55165 in boost mode, when input voltage is under 15v the output is aprox 10.2v, I tried with and without load and do the same. it works fine in buck mode.
When im in low power mode works in both buck and boost.
10uF Capacitor https://www.digikey.com/product-detail/en/samsung-electro-mechanics/CL31F106ZOHNNNE/1276-1312-1-ND/3889398
0.1 uF=100nF Capacitor https://ar.mouser.com/ProductDetail/KEMET/C1206C104M5RAC7800?qs=DM5%252B9G31yH3Dk%252BjBZ6yGdA%3D%3D
4.7 uH Inductor https://www.digikey.com/product-detail/en/bourns-inc/SRU1048-4R7Y/SRU1048-4R7YCT-ND/3437981
Output when it doesnt work
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ADS8674: EVM Data Communication Error
Part Number:ADS8674
Hey guys,
I am working with the ADS8678 EVM and appear to be having some issues with the communication. I have the board configured with default jumper settings and the GUI recognizes that the SDCC is connected. The problem is that I am unable to read registers from the ADC and am pretty sure there is no communication between the SDCC and ADC. When I probe SCLK, it looks like the clock frequency is actually running close to 25MHz, which is higher than the maximum 17MHz specified in the datasheet.
This was brought up before in this post: https://e2e.ti.com/support/data-converters/f/73/t/672309?tisearch=e2e-sitesearch&keymatch=ads8678 but the user seemed to have corrected his issues by using 50 Ohm termination resistors on the data lines. These appear to be present on the EVM, but I am still not able to read registers. Any ideas?
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BQ24620: Break on battery connection
Part Number:BQ24620
Hello,
We are having problems that are related to this charger and I do not know what it can be.
The fact is that 1 out of 3 times that we connect the battery to any pcb that has this charger, the components R2, Q4, Q5 and U1 (image attached) are broken. Q4 and Q5 give continuity between spout, drain and door. U1 shows a hole in the center of the component. We try to repair the PCB in each case replacing all the components apparently broken and it does not work either, so I suppose there are some more components in poor condition.
One of the hypotheses that I think it can be is that the inrush current (it has always been broken at the time of the battery connection) when trying to charge capacitors C3 and C4, but I have done the test of desoldering them and it has Past exactly the same (see picture 2)
Should I put some filter in these capacitors? What solutions do you think of?
Thanks in advance
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CC2531EMK: CC2531 USB Dongle + SmartRF04EB debugger
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UCC28780: UCC28780
Part Number:UCC28780
We have a new issue about our finalized design with UCC28780 and UCC24612. We had designed in LMG3410 in it but our very dense packaging caused us to look into it harder.
Then we come across TIDA-01622: it proposes GaN for high side switch for the active energy recovery & ZVS scheme and for the lower switch. The parts are from Navitas.
We found the parts mentioned in TIDA-01622 to be more suitable for high-density packaging.
BUT: Navitas does not intend to provide any design support to us at all!
Nada. Zilch. They have other lofty intentions.
So many questions here: do we follow TIDA-01622 approach when the GaN switch provider does not seem to be committed to this market?
If they pull off the NV6117 devices from the market, do we have equivalents from others? How reliable are these devices according to TI's findings and how dependable will the supply be?
Does TI have plans to make LMG3410 more integrated so that lot of glue parts will not be necessary? Such as a very high value of capacitors, large inductor, etc? So that if Navitas dropped these devices, we can switch back to LMG3410 within the same footprint & glue parts.
We are about to go to fab the pcbs this week.
So the question is very relevant: it is too late to go back to LMG3410 as we speak, but we would appreciate some thoughts from you all on this.
-r
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