Part Number:LMZ14203
Tool/software: WEBENCH® Design Tools
Hi all, I have some troubles with LMZ14203 DC-DC Step-down converter.
The Datasheet is declaring 8mVpp of ripple, while in reality I am measuring 340mV over my board.
This is the WEBENCH proposal:
and this is the waveform from the simulator:
Now I show you the real schematic:
Ok, with this setup, I have the following waforms on the Oscilloscope:
Part Number:CODECOMPOSER
Tool/software: Code Composer Studio
I am using CCS7 on Mac OSX Sierra.
When debugging, I cannot receive console data. Meaning, when performing a Debug/Run:
1. the output window has been successfully initialized and the code is running fine, but no output is going to Console in the IDE.
2. I use the Serial program to make UART connections to devices. I see there are two ports available when connecting to the device, and the debugger occupies the first port. When connecting Serial to the second port, I do not receive anything.
3. When I disconnect CCS7 from the device (while still in Debug/Run mode), I connect Serial to the first port and I receive output.
So, in my mind there are really two questions here.
1. How can I receive output in the CCS7 IDE (maybe this is a Mac OSX issue?).
2. Is there a way to change the output handle to the second UART port (this might be a stupid, naive question - I am still learning the TI development ecosystem).
Part Number:DRV5032
Hi all,
I would like to sense if current is flowing through wire or not? For the same i was thinking if i can use DRV5032?
When my circuit is on current flowing will be 60mA @ 230V AC. I was thinking if i will place off wire on/next to DRV5032 will it sense the same and give me digital out put for sensing in controller.
My task is just to confirm if circuit is on or not.
Thanks. Regards.
Part Number:CC2530ZDK-ZLL
Tool/software:TI-RTOS
void halTimer1SetChannelDuty (uint8 channel, uint16 promill)
{
#define MIN_PROMILL 20
uint16 count;
if (promill < MIN_PROMILL)
promill = 0;
count = (uint16)( ((uint32)(Timer1MaxCount) * promill + 500)/ 1000 );
count = ( (count >= Timer1MaxCount) ? Timer1MaxCount-1 : (count == 0 ? 1 : count) );
halTimer1SetChannelCount(channel, count);
}
In the above function, why in that formula to add 500? Why divided by 1000? The theory is not divided by 100 right?
Part Number:TM4C1231H6PZ
Hi Support,
I would need your help regarding RTC time trimming.
Is a possibility to output LFOSC clock 32768Hz on a pin to measure frequency accurate? (Measurement directly on XTAL OSC pins would influenced frequency).
Can you provide an equation for calculation of value for trim register based on measurement of frequency?
Thanks and regards,
Alberto
Part Number:CC2650
Hi All,
I am using CC2650 to scan one peripheral that is CC2541. with multi-role the scanning range is less and when i load the default central code the scanning range is more that is same as any mobile application.
On same CC2650 default multi-role code i have loaded and it is not scanning peripheral device(CC2541) after some limited range and On same CC2650 i am loading default central code and trying to scan same peripheral running on CC2541 it scans for larger range.
What might be the difference in multi-role scanning and the central scanning which is reducing the multi-role scanning range ..?
Any suggestion on this ....!!!
Thanks & Regards
Atul
Part Number:LAUNCHXL-CC1350
Tool/software: Code Composer Studio
i need to enable bluetooth which must be always in on condition, when i flash the ble stack the bluetooth is visibling but when i upload other code the bluetooth is not visibling, send me a ble stack code i am having the hex file .
when we evaluate the step by step process for ble stack mode it is not working in cc1350 but it is executing for msp boards,it showing a error ICALL main error
its a very urgent project but we cant able to keep the bluetooth ON when i upload the other code the bluetooth is not visible.
send me a process or a library file so that i can add this file which could enable the bluetooth all the time.
NOTE:PLEASE PROVIDE US THE BEST SOLUTION AS SOON AS POSSIBLE.
Part Number:TCI6638K2K
Tool/software: Code Composer Studio
Hi,
I have Created a Project similar to fftcSimpleK2KC66BiosTestProject . It is configured for Dynamic mode of scaling,
I'am receiving Destination and Source Tag info in the Result Buffer and the Block Exponent Value is "65535" But the Result values i.e I and Q values are Zeros,
i needed Help to get the valid FFT Result values.
Regards
Asha
Part Number:TUSB4020BI
Dear,
The TUSB4020 does have an SMBUS interface, which can be use to do configurations of the device. The question is, if this SMBUS interface can be used to change the configuration on the fly (dynamically during run time). Or is it possible to the configuration only during initialization and is this static during run time/
Thanks in advance and kind regards,
Wim van der Steeg
Part Number:MSP430F2619
Tool/software: Code Composer Studio
I could not find Drivelib folder suitable for MSP439F2619?, suggestion?
I only found code example but that it.
Have I missed something?
Part Number:TMS320C6748
Tool/software:TI-RTOS
I follow the <Intro to the TI-RTOS Kernel Workshop Lab Manual>, and do the LAB8, which use task and semaphore.
But I succesuffly run the LAB, the led toggles right and I can see the task and semaphore in the ROV.
But in the Execution Graph, there is no task or semaphore. How to show them?
Part Number:LAUNCHXL-CC1350
Hi,
We are using CC1350 Launchpad as the node (Webdemo code) and gateway(slip radio). We are trying to send data to our external server after every 1 and half hour via MQTT, so we changed the
#define CC26XX_WEB_DEMO_DEFAULT_PUBLISH_INTERVAL (30 * CLOCK_SECOND)
to
#define CC26XX_WEB_DEMO_DEFAULT_PUBLISH_INTERVAL (5400 * CLOCK_SECOND)
also we are triggering the data send manually like button press by generating events using the following,
process_post(PROCESS_BROADCAST, cc26xx_web_demo_publish_event, NULL);
but if we are trying to send data after sometime like 5 mins, it is taking too much time and disconnecting and then reconnecting then only it is sending. The log is as follows,
MQTT- Publish En queued
MQTT - Disconnected by tcp event 2
APP - MQTT Disconnect Reason 2
Disconnected
-----------
then it is connecting and sending
Please let me know your thoughts.
Thanks
Rahul
Part Number:BQ24074
I am using the BQ24074 as a single cell Li_ion battery charger, powered from an external USB PSU. I have processor control of the charge enable and EN1/EN2 control lines so am able to set the charge current to any of the available states.
Circuit as follows:
My intentions are:
No thermistor- R14 sets TS to a known good level.
TMR - R11 sets a time I have calculated based on charge current, battery capacity, tolerances plus a bit more to ensure timer is long enough.
ILIM - input current limit from IN (i.e. external PSU). R12 sets this to a nominal 1A (approx. 0.94A min, 1.075A max).
ISET - Max charge current, set to a nominal 1.08A (approx. 0.97A min, 1.19A max).
ITERM - R70 is not fitted so termination current set by BQ device.
I know I have the charge current set to slightly higher than the available input current. This basically makes sure that EVERYTHING is used to charge the battery. In practice there is always a bit used by my processor and other devices but the device will use whatever is left, up to the ILIM input current to charge the battery.
My problem:
I have connected my board to a bench PSU so I can monitor the current. My processor has set PMIC_EN1 to '0' and PMIC_EN2 to '1' which sets the current limit to the value set by ILIM (about 1A). My battery has some charge in (50-60%) and the current drawn from the PSU is about 640mA. This is lower than the 1A I was expecting but I can be persuaded that this is due to the state of the battery (??).
However, when I add additional load onto VSYS (i.e. another 200mA) I would expect to see this additional current being drawn from the input PSU as I am still well under my current limit set by ILIM. Instead I don't see ANY additional current being drawn from the input voltage and instead see the extra current being supplied by the battery. I would expect this behaviour if I had reached the ILIM value but not while I am well under it.
On a previous prototype version of this board I had used the BQ24072 (same device family, slightly different options, all resistor value were the same) and this did operate as I would have expected.
So in short, why is the BQ24074 not behaving correctly. It looks like it is current limiting far too early and not at the design level. I have checked the values fitted to the PCB and they are as specified.
Any help appreciated.
Part Number:CC1110-CC1111
Hello,
Part Number:TPS735
Hi,
What is the maximum resistance value that can be used?
For example, can I use 1MΩ?
Best regards,
Seishin
Part Number:AM5728
We have three video output, TV/LCD1/LCD2 ,but we found TV output color has some different with LCD1/2.
Is it gamma issue? We found the TV gamma is 10 bits.
If yes, does is possible to modify the TV gamma to 8bits.
Part Number:TDA2EVM5777
Tool/software: Starterware
What is the full spelling of AccelerationPac ?
TDA2x ADAS Applications Processor 23mm Package (ABC Package) Silicon Revision 2.0
The Vision AccelerationPac for this family of products includes multiple embedded vision engines (EVEs) offloading the vision analytics functionality from the application processor while also reducing the power footprint. The Vision AccelerationPac is optimized for vision processing with a 32-bit RISC core for efficient program execution and a vector coprocessor for specialized vision processing.
Part Number:TPS65150
Hello,
While VIN is above UVLO, SW start switching and it cause Vin(VCC3) drop as below waveform. Could timing of SW be tuned to solve this issue? or any other method to improvement. Thank you.
BR
Patrick
