Part Number:AFE4404
Hi,
I also have two questions about SNR measurement of AFE4404:
1) About receiver SNR, if this measure can be comparable with datasheet: applying a 0.5*FSR signal to input, calculate the STDEV of ADC data and calculate the SNR as: SNR=20*log10(2^22/stdev(ADC data)).
The datasheet specify SNR over 20Hz bandwidth, should a digital filter be applied to ADC data to limit the bandwidth to 20Hz before calculate the SNR?
2) How to measure the SNR of transmitter?
Thank you,
John
Part Number:CC2530
Hi,
We need to implement the ota functionality in zstack 3.0.1 router, we have used the samplelight program from the home automation module.
In "Z-Stack OTA Upgrade User's Guide" the sampleswitch program is used which contains the 'OTAClient' configuration.
However we are using samplelight application which does not contain the 'OTAClient' configuration.
How can we add this configuration? Or if you can refer any other guidelines that we can follow to do the ota implementation?
Part Number:CC2640
Tool/software: TI-RTOS
Hiii,
I am using UART peripheral in cc2640 in callback mode for transmitting the data.My problem is i am sending the first string of data successfully
but i am failed to send next data which is in the next instruction itself. I have this problem in both RTOS snd NoRTOS projects.help me out.
best regards,
shiva
Part Number:DRA74
Hi,
I followed this document 
to boot the board via dfu-util. I didn't apply patches in section 3.1.1 & 3.1.2 but did apply patches mentioned in section 3.2. And i got the output till section 3.2.1 but while executing the command sudo dfu-util -l on host, i can't find any device.
Regards,
Sam
Part Number:TUSB4020BI
Tool/software: TI-RTOS
Hi Sir
I have a question about TUSB4020BI as below.
Could you share OTP register about timing to program these non-volatile memory?
In your experience, will you suggest us to have special station to program these OTP registers?
Thanks for your great support.
Part Number:UCC2897
Dear Sir,
This is Gordon Liu of WNC.
I'm studying the document of slua535.pdf for forward topology.
I try to repeat equations of slua535.pdf but ;is not work.
The document don't show many parameter how to set.
Could you share the EXCEL for slua535.pdf??
BRs,
Gordon Liu
Part Number:LAUNCHXL-F28379D
Tool/software: Code Composer Studio
Hi ,
Does anybody know how to enable and disable epwm module in LAUNCHXL-F28379D ?
I have tried the soft-reset and epwm clock enable and disable but it does not affect epwm pin.
I want to enable and disable epwm pin as per need for motor control.
Part Number:TPS53622
Since we are unable to find packaging Information Tape Packaging information and Orientation for TPS53622ARSBR
Part Number:DAC38RF82EVM
Hello,
We are measuring output phase noise performance by using DAC38RF82EVM. The attached is the data.
We apply DAC clock from external by using E8257D, 3000MHz. E8257D phase noise is in data as bottom two, bold blue and red lines.
Upper lines above bold blue and red lines are the DAC38RF82 output phase noise.
Ideally we estimated input clock and DAC output phase noises are similar but the result was worse.
We are evaluating other DACs by similar way but DAC38RF82 data is the worst so far.
[Question]
- Why the output phase noise got worse? please let us know if there is a reason for this.
- Is there any way to improve this performance?
(Please visit the site to view this file)
Best regards,
Toshihiro Watanabe
Part Number:MSP430F5239
Hi,
Introduction:
I am using MSP430F5239 and my system requires an I2C BSL for upgrading the firmware in the field. We figured out that the default BSL in this device is timer based UART and we would need to flash a custom BSL before shipping it to our customers.
Progress so far:
To create a custom BSL, we planned to use, "MSP430BSL_1_01_00_01" provided as a reference.( CCS_v7_MSP430F522x_I2C project to be more specific.)
We figured out that "Lite FET-Pro430" was the best software to load BSL. Before starting to change the BSL project for our MSP430 device, we decided to give a shot with the default build provided with CCS_v7_MSP430F522x_I2C. To confirm if BSL was loaded correctly and is running, we sent I2C some write commands with slave address 0x48, and we saw MSP430 respond. So, we are pretty sure that we have got the BSL loaded correctly.
Is there anything better suggestions you have to provide in the above steps?
Coming to the Main problem:
Our next step was to load our final application binary using BSL. we came across command lime mode of BSL scripter for PC based loading.
BSL-Scripter.exe -n 5xx -i [COM26,I2C,100000] -b -w RTOSDemo.txt -v -z [SET_PC,0x4400]
We were getting an error stating, "The communication protocol chosen is not available for the chosen Family!". So we decided to look for alternate methods and came across "SimpleLink Host for MSP430 UART BSL". (Embedded programming solutions for BSL). We did not see any such host implemtations for I2C BSL.
Please let us know how can we proceed further.
Thanks in advance
Part Number:TCA7408-5405EVM
Hi All,
We need the code to control TCA7408-5405EVM.
The user guide says that the code to control the TCA7408EVM/TCA5405EVM was written from an MSP430G2553 like below image.
Please share this control code with me.
Regards,
Jeffrey
Part Number:IWR1642
Tool/software: Code Composer Studio
Hi,
I am trying to automate the debugging of IWR 1642 using Debug Server Scripting on CCS.
I created a script that connects the target and loads files on DSS and MSS respectively and run them.
If you run the script below, the DSS can be executed normally, but after loading the file, Debug Call Stack is called in Main function and MSS is not run.
(At that time,resume Coretex_R4 in the Debug tab, the demo ran successfully.)
Could you tell me why Debug Call Srack is called when you run the script?
Best Regards,
Takuma
importPackage(Packages.com.ti.debug.engine.scripting);
importPackage(Packages.com.ti.ccstudio.scripting.environment);
importPackage(Packages.java.lang);
importPackage(Packages.java.io);
var ccs8InstallDir = "C:/ti/ccsv8";
var CCSWorkspace1 = "C/Users/******/srrdemo_16xx_dss";
var CCSWorkspace2 = "C:/Users/******/srrdemo_16xx_mss";
var deviceCCXMLFile = "C:/Users/******/ti/CCSTargetConfigurations/IWR1642.ccxml";
var programToLoad1 = "C:/Users/******/srrdemo_16xx_dss/Debug/srrdemo_16xx_dss.xe674";
var programToLoad2 = "C:/Users/******/srrdemo_16xx_mss/Debug/srrdemo_16xx_mss.xer4f";
var script = ScriptingEnvironment.instance();
var debugServer = script.getServer("DebugServer.1");
debugServer.setConfig(deviceCCXMLFile);
var debugSession1 = debugServer.openSession("Texas Instruments XDS110 USB Debug Probe_0","C674X_0");
var debugSession2 = debugServer.openSession("Texas Instruments XDS110 USB Debug Probe_0","Cortex_R4_0");
// Connect to the CPU
debugSession1.target.connect();
debugSession2.target.connect();
// Reset to the CPU
debugSession1.target.reset();
debugSession2.target.reset();
//Load a Program
debugSession1.memory.loadProgram(programToLoad1);
debugSession2.memory.loadProgram(programToLoad2);
// Run the target
debugSession1.target.run();
debugSession2.target.run();
// All done. stop debug server.
debugServer.stop();
Part Number:TPS2378
Hi TI,
I see a resistor inside the pin, APD as picture below.
1. may I know the value of this resistor?
2. What is this resistor design for?
Thank you.
Hi,
My circuit design as below:
Charge and discharge circuit is separate,p+ is connected PACK Pin with R56(10K),CH+ is connected PACK Pin with R8(10K),
if R56 did not weld,CUV protection funtion did not work,p+ did not turn off.
if R56 and R8 all weld,CUV protection funtion did not work, and p+ turn off immediately then open again. please see the attachment video.
if R56 weld,but R8 did not weld, CUV protection funtion work normal.
Why is that? Thanks!
(Please visit the site to view this video)
Part Number:TMS320C6674
Hello Champs,
Customer designed his own C6674 board, XIO2213B is connected to C6674 PCIe, below is the configuration code.
PCIE_Loopback_Mode loop_mode = PCIE_LOOPBACK_DISABLE;
PCIE_cfg.serdes_cfg.inputRefClock_MHz = 100;
PCIE_cfg.serdes_cfg.linkSpeed_GHz = 2.5;
PCIE_cfg.serdes_cfg.numLanes= 1;
In the link training, the code is stuck in the gpPCIE_CAP_implement_regs->DEBUG0[4:0] DETECT_QUIET status.
BTW, he tested the phy_loopback mode is correct, the link training works.
Thanks.
Rgds
Shine
Part Number:PMP10116
Hi,
My requirement is 200w to 250w dimmable LED driver design for HighBay fixtures with output voltage = 75V to 90V & output current = 3A. Can you give me reference design matching the output requrements to start with.
Regards,
Amit
Part Number:AWR1443BOOST
Tool/software: Code Composer Studio
HI
I would test water vs ground sample code with IWR1442BOOST
I compiled the source in code composer v8, it was ok
it made 'xwr14xx_water_ground_lab_mss.bin' and 'xwr14xx_water_ground_lab_mss.xer4f'
( I followed the instruction in "water_vs_ground_lab_user_guide.pdf" )
It was OK until "step 5.2 Loading the binary"
but step 5.3 Running the binary, it was different from instruction
( the contents of the PDF file)
( results in My CCS)
There is no "CLI is operational" message
I don't know why..
Please let me know the reason that there is no "CLI is operational"
and let me know how to resolve the problem.
thank you....
Part Number:AM3359
Tool/software: TI C/C++ Compiler
Hello all,
I installed AM335x SDK using ti-processor-sdk-linux-am335x-evm-04.03.00.05-Linux-x86-Install.bin on my linux PC.After making some changes in menuconfig I compressed the SDK folder using tar -cvzf command,extracted the SDK in another pc using tar -xvzf command and tried to compile.But after a while I'm getting this error.
=============================
Building ARM Benchmarks
=============================
make[1]: Entering directory `/home/ti_sdk/example-applications/arm-benchmarks-1.3'
for dir in dhrystone whetstone linpack; do \
make -C $dir debug; \
done
make[2]: Entering directory `/home/ti_sdk/example-applications/arm-benchmarks-1.3/dhrystone'
/home/ti_sdk/FDTA/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-gcc -g3 -gdwarf-2 -DTIME -c -march=armv7-a -marm -mfpu=neon -mfloat-abi=hard -oDebug/dhry_1.o dhry_1.c
In file included from dhry_1.c:56:0:
dhry.h:432:19: fatal error: stdio.h: No such file or directory
#include <stdio.h>
^
compilation terminated.
I changed the paths in the parent Makefile to match with the linux pc on which I extracted the SDK.Seems like the kernel is compiling but the problem start when it tries to compile the example application.How can I fix this error?
Regards,
Murugan S