Part Number:HDC2010
Hi
I am looking for some information about air volume condition for this device.
There are some information about the recommended placement at the following application note.
http://www.tij.co.jp/jp/lit/an/snaa297a/snaa297a.pdf
However there are not information about how much air volume is needed.
Do you have any information for that? Or we do not need to worry about that?
Best Regards,
Koji Hamamoto
Part Number:TMS320F28377D
Hi all,
I am a little confused about the clock configuration in IIC example project.
The project's location: C:\ti\controlSUITE\device_support\F2837xD\v150\F2837xD_examples_Cpu1\i2c_eeprom
The clock related configuration is:
InitSysPll(XTAL_OSC,IMULT_20,FMULT_1,PLLCLK_BY_2); //PLLSYSCLK = 20MHz(XTAL_OSC) * 20 (IMULT) * 1 (FMULT) / 2 (PLLCLK_BY_2)
I2caRegs.I2CPSC.all = 6; // Prescaler - need 7-12 Mhz on module clk
In this example, I calculate the clock supply frequency like this:
PERx.SYSCLK = 20*20*1/2/7 = 28.57M
which is different from what is mentioned in the comment "7~12M"
Am I do the wrong calculation?
Thanks!
Part Number:LMK04610
Hi,
I use latest version of TICS Pro (1.6.8.0 / build date 08-Jun-18 / part version 2017-01-30) to assist in finding the configuration settings of the LMK04610.
While changing the CLK0/1 PLL1_RDIV settings I found unexpected behavior.
Any PLL1_RDIV setting below 10 gives the expected result. However any value 10 or higher gives (I think) the wrong result. As a test I checked all effective divider values for setting 1 through 25:
selected PLL1_RDIV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
effective RDIV 1 2 3 4 5 6 7 8 9 12 15 16 19 20 23 24 27 28 31 32 35 36 39 40 43
So, for example, CLK_in = 100MHZ, PLL1_RDIV=20, expected CLK = 5MHz, TICS PRO tool CLK = 3.125MHz (=1/32).
My question: is this a bug in TICS PRO, a bug in LMK04610, or some undocumented feature of LMK04610?
Regards,
Paul
Part Number:CC1352R
Hi all,
1) can we use this antenna with cc1352 for 868Mhz ??
2) Any balun available for cc1352 for 868Mhz ??
Part Number:AWR1443BOOST
Tool/software: Code Composer Studio
Hello. I'm Going to Buy AWR1443BOOST Module. I saw demos in resources explorer in industrial toolbox. I am Interested if IWR1443 Demos in compatible with AWR1443?
Part Number:ADS1299
Hi. I'm wondering if the square wave excitation current signal to perform the ac lead-off detection has a DC component or not (an offset, to be clear).
Part Number:TPS7A30
I am using the TPS7A49 and TPS7A30. Input voltages are +/- 15 VDC respectively, and output voltages are +/- 10 VDC respectively. Output current draw is very low-- about 12 mA. Here is a snippet from my schematic showing their connections. As far as I can tell, they are connected by the book. The pins labeled as pins 9 refer to the power pad. Input and output filter capacitors are X7R and are placed close to the parts. These parts are hand soldered to several first-article PCBs for testing. As such the power pad is not soldered. However, power dissipation is so low that the ICs don't get even the slightest bit warm. My problem is that both ICs will sometimes, but not always, show some wandering in their output voltages. Specifically the output voltages will drift around by 1 to 3 mV in a frequency band of about 0.1 Hz to a bit below 1 Hz. This wandering can easily be seen on a scope. Other than that, the outputs look quiet with no visible oscillation. This wandering is a critical fault in my application and we are desperate for a fix. I have noticed that these parts are hard to get. Do you think it's possible we have received bootleg parts? Has TI seen that problem with these ICs? Your earliest response would be hugely appreciated. Thanks in advance for any light you can shed on this situation.
Part Number:CC1352R
Hi all,
1) Any chip antenna available to use with cc1352 for 2.4Ghz??
2)can we use this balun 2450BM14G0011 with cc1352 for 2.4Ghz??
Part Number:LDC0851
Hello,
I'm currently evaluating the benefits of the LDC0851 compared to a hall sensor in a motor speed detection circuit.
Because of the application mechanics, I have a fixed orientation of my PCB in relation to the motor shaft. The shaft is perpendicular to the PCBs X- and Y-axis, the shaft passes through the PCB.
Therefore, using a planar printed coil on the PCB, I would have to add some kind of tooths to the shaft to be able to detect rotation.
What I would like to know:
Can you provide a PCB coil design that enables the detection of the motor shaft rotation speed if the shaft has a flat area (shaft diameter is 25mm)?
If not, is there a technical reason that limits my application?
This is an example of what I could imagine:
Thanks,
Markus
Part Number:AWR1642BOOST
Hi:
I have some questions about awr1642 EVM board and some questions about the algorithm of reference design code (TIDEP-0092),
as below:
1. I have found the antenna pattern angle vs. gain figure plot in reference document, but do not find the gain vs. frequency response plot, Is there any available document ?
2. In reference design code USRR mode, it implemented virtual array in time domain, so the equivalent element number of receive antenna is 8, so the estimation of DoA size is 8 or using 4、4 (independent estimation twice then joint considering)
3. In clustering phase, does the process data (input of clustering) has arranged from small to larger in velocity domain? I have studied the reference code and I think it has different result with the arrangement of velocity.
4.In tracking phase, we need to estimate the covariance of the measurement and the reference code use to CRLB to estimate the var of the parameters, but I still do not understand how to estimate the noise in range、angle、velocity domain?
5. There are two mode in reference code (USRR/SRR) and can close or open optionally in matlab GUI interface, if I close the USRR mode, What is this mean? It will fill the gap with SRR chirp or just empty ?
6. Does the reference design do the peak grouping after CFAR? If yes, how its work? Does it find the local max in 3*3 (in 2D -FFT detection block)?
7. Is the CFAR input define as the is 2*log2(abs(fft))?
8. When using chinese remainder theory to extend the max velocity, how to pair the result for fast chirp and slow chirp ? with power similarity or position similarity? If slow chirp detection result has 4 objects and fast chirp has 3 objects, the result of the output is 3 or 4?
Thanks for answering!
Best regards,
Henry Lin
Part Number:DP83848Q-Q1
Hi
Our customer has following questions.
1.
What is the internal pull-up value at PHYAD0?
2.
What is the internal pull-down value at PHYAD1-4?
3.
Do you have information of internal circuit at strap pins?
4.
After the device powered up, some voltage 1.2V - 1.4V is observed at strap pins.
Is it normal?
BestRegards
Part Number:CC1310
Tool/software: Code Composer Studio
Greetings!
Is it possible to interface multiple i2c sensors to CC 1310 using Sensor Controller Studio. If yes! How can I change the address of different sensors and where should I do it?
Part Number:TMS320F28379D
Tool/software: Code Composer Studio
I want to use CPU Timer to trigger AD sampling. The sampling frequency is set at 360kHz, so the frequency of CPU Timer is also set at 360kHz. In fact, the frequency of CPU Timer is not 360kHz, but 476kHz. If I reduce the sampling frequency (for example 100kHz), the CPU Timer can operate at the right frequency.
I want to know if the frequency of CPU Timer has a maximum range. If there is, the sampling frequency 360kHz exceeds this limit, I think the actual sampling frequency should be lower than 360kHz, not higher than 360kHz. And I want to know, How should I trigger the ADC to make the sampling frequency reach 360kHz?
void SetupCPUTimer0(void)
{
InitCpuTimers();
Sample=1000000/360000;
ConfigCpuTimer(&CpuTimer0, 180 ,Sample);
CpuTimer0Regs.TCR.all = 0x4000;
}
interrupt void cpu_timer0_isr(void)
{
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
void ConfigureADC(void)
{
EALLOW;
AdcaRegs.ADCCTL2.bit.PRESCALE = 2;
AdcSetMode(ADC_ADCA, ADC_RESOLUTION_12BIT, ADC_SIGNALMODE_SINGLE);
AdcaRegs.ADCCTL1.bit.INTPULSEPOS = 1;
AdcaRegs.ADCCTL1.bit.ADCPWDNZ = 1;
DELAY_US(1000);
EDIS;
}
void SetupADCTimer0(Uint16 channel)
{
Uint16 acqps;
if(ADC_RESOLUTION_12BIT == AdcaRegs.ADCCTL2.bit.RESOLUTION)
{
acqps = 14; //75ns
}
else //resolution is 16-bit
{
acqps = 63; //320ns
}
EALLOW;
AdcaRegs.ADCSOC0CTL.bit.CHSEL = channel;
AdcaRegs.ADCSOC0CTL.bit.ACQPS = acqps;
AdcaRegs.ADCSOC0CTL.bit.TRIGSEL = 1; //trigger on cputimer0
AdcaRegs.ADCINTSEL1N2.bit.INT1SEL = 0;
AdcaRegs.ADCINTSEL1N2.bit.INT1E = 1;
AdcaRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
EDIS;
}
interrupt void adca1_isr(void)
{
float ADC_result=0;
ADC_result = (float)AdcaResultRegs.ADCRESULT0;
ADC_Result0[icount]=ADC_result;
AdcaRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
Part Number:CCSTUDIO
Tool/software: Code Composer Studio
在今天照例打开ccs的时候，总是报错，在网上查了教程，说是更改下eclipse文件，就可以，但是更改后还是不能用，请问这是什么原因呢。具体图片如下
Part Number:CC1350
Tool/software: Code Composer Studio
Greetings!
Is it possible to trigger Event Handler in Sensor Controller Studio using both GPIO and Timer in the same task?
Part Number:TDA2
Tool/software: Linux
i add my algorithm code in (vision_sdk\sample_app\src\rtos\alg_plugins\mycode.c )
make is pass , in frameCopyAlgoLocalDma.c i add Vps_printf(" wordWidth: DMA: height CH (TCC) = %d (%d)\n", pAlgHandle->frameCopyObj.maxWidth,pAlgHandle->frameCopyObj.maxHeight ) is done,
but in mycode.c i use Vps_printf never print anything!
Tool/software: Linux
Hello.
I work with am5728-evm board and linux version "4.9.65-rt23-g7069a470d5" on this board.
I connectd TVP5146 like image blew on my board and i want to show something of camera in LCD of my board !
in config of kernel CONFIG_VIDEO_TVP514X set to "m" and in device tree :
&i2c5 {
tvp514x@5D {
compatible = "ti,tvp5416";
reg = <0x5D>;
port {
tvp514x_1: endpoint {
remote-endpoint = <&vin3a>;
};
};
};
};
&vip2 {
status = "okay";
};
&vin3a {
status = "okay";
endpoint {
slave-mode;
remote-endpoint = <&tvp514x_1>;
};
};
after these settings, i dont see any videoN on /dev/ path!
when I cat uevent of i2c:
root@am57xx-evm:~# cd /sys/bus/i2c/devices/i2c-4/4-005d/
root@am57xx-evm:/sys/bus/i2c/devices/i2c-4/4-005d# cat uevent
OF_NAME=tvp514x
OF_FULLNAME=/ocp/i2c@4807c000/tvp514x@5D
OF_COMPATIBLE_0=ti,tvp5416
OF_COMPATIBLE_N=1
MODALIAS=i2c:tvp5416
root@am57xx-evm:/sys/bus/i2c/devices/i2c-4/4-005d#
Part Number:PTEA415050
Hi all,
is there a replacement part for the PTEA415050 with similar current rating etc.?
Many thanks and best,
Miri
Part Number:ADS8332
Hi,
I have interfaced ADS8332 with TM4C123 on SSI2.
Configured clock at 20MHz.
Writing to configuration register CMR + CFR = 0xE7BD. (proded on oscilloscope)
But reading back CFR with 0xC000 I am not getting back 0x7BD.
Please let me know where I am going wrong, attached Is my code and schematics.
Thanks and Regards,
Dileep(Please visit the site to view this file)