Part Number:OPA2189
Hello Team,
Recently I'm looking for OPA2189 device which has excellent noise, offset and drift spec. I noticed out that the internal block of this device is pretty different from other OPAMP device. This device including two clocks and three transconductance amplifier. What is the purpose of the internal clock? Is this device free for clock noise? Could you please briefly explain about how internal blocks are operating?
Thanks.
Part Number: MATHCAD_CEDV_SOFTWARE
Tool/software: TI C/C++ Compiler
How do I find NAND and NOR memory Size in c code and also how could I find the state of DSP cores ? #using_c_code
Part Number:FDC2212
Dear Technical Support Team,
I'd like to simulate resonant circuit(LC tank) and the wave of electrode for ensuring the electrode and circuit design.
Could you tell me following questions?
【Questions】
What signal does INxA and INxB output to resonant circuit(LC tank)?
If you have any document , could you share it?
1.) Pulse wave or Sine wave?
2.) Voltage drive or Current drive?
3.) The amplitude of voltage or current
4.) drive time
Best Regards,
ttd
Part Number:CC2650STK
Hi Everyone.
I ask for help to implement a scan filter for device name, and not for mac, as it happens for whitelist. As an example:
If I scan by BleScanner App by my smartphone, I see "Eddystone" as name of beacon, there is a way to do something like this on CC2650STK, and filter scan by this data?
Many thanks for your help,
Walter.
Part Number:IWR1443BOOST
Hi,
I'm trying to capture raw data from the IWR1443 with the TSW1400.
I'm following the "mmWave sensor raw data capture using TSW1400 board" doc.
Everything goes well until the SPI connection, the connection is failed and SPI connectivity stays red.
I made sure the JP5 jumper is fitted as stated in the common issues section.
I am using EVM with ES2.0 silicon, and the DFP version is 1.0.0.
I have attached the radar studio output log.
Will be glad for some help.
Thanks,
Boaz
GM: Constructor
GM: Tue Feb 20 12:13:25 2018
RSTD.Transmit("/Settings")
[12:13:25]
[12:13:25] ### Running Startup script: "C:\ti\mmwave_dfp_01_00_00_01\rf_eval\radarstudio\Scripts\Startup.lua" ###
[12:13:25] RSTD.SetAndTransmit ("/Settings/Scripter/Display DateTime" , "1")
[12:13:25] RSTD.SetAndTransmit ("/Settings/Scripter/DateTime Format" , "HH:mm:ss")
[12:13:25] Scripter ignored: Attempt to UnBuild() again or before Build.
[12:13:25] UnRegisterDll: Ignored. dll "C:\ti\mmwave_dfp_01_00_00_01\rf_eval\radarstudio\Clients\AR1xController\AR1xController.dll" is not registered.
[12:13:25] WARNING:
[12:13:25] RegisterDll: Could not find path "C:\Program Files (x86)\Texas Instruments\RadarStudio\Clients\HSDCPRO\Lua_CS_HSDCPro.dll"
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 0/Dll" , "C:\\ti\\mmwave_dfp_01_00_00_01\\rf_eval\\radarstudio\\Clients\\\\LabClient.dll")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 0/Use" , "TRUE")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 1/Use" , "FALSE")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 2/Use" , "FALSE")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 3/Use" , "FALSE")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 4/Use" , "FALSE")
[12:13:25] RSTD.SetVar ("/Settings/AL Client/AL Dll" , "C:\\ti\\mmwave_dfp_01_00_00_01\\rf_eval\\radarstudio\\RunTime\\SAL.dll")
[12:13:25] RSTD.SetVar ("/Settings/Clients/Client 0/GuiDll" , "")
[12:13:25] RSTD.SetVar ("/Settings/AutoUpdate/Enabled" , "TRUE")
[12:13:25] RSTD.SetVar ("/Settings/AutoUpdate/Interval" , "1")
[12:13:25] RSTD.SetVar ("/Settings/Monitors/UpdateDisplay" , "TRUE")
[12:13:25] RSTD.SetVar ("/Settings/Monitors/OneClickStart" , "TRUE")
[12:13:25] RSTD.SetVar ("/Settings/Automation/Automation Mode" , "false")
[12:13:25] RSTD.Transmit("/")
[12:13:25] RSTD.SaveSettings(): Settings saved to "C:\Users\boazme\AppData\Roaming\RSTD\config.xml"
[12:13:25] RSTD.Build()
[12:13:25] RSTD.SaveSettings(): Settings saved to "C:\Users\boazme\AppData\Roaming\RSTD\config.xml"
[12:13:25] RSTD.Transmit("/")
[12:13:25] RSTD.AL_Build()
[12:13:25] RSTD.AL_LoadXml()
[12:13:25] RSTD.Transmit("/")
[12:13:25] RSTD.AL_Init()
[12:13:25] RSTD.Clients_Build()
[12:13:25] GM: Init
[12:13:25] GM: Loaded 'C:\ti\mmwave_dfp_01_00_00_01\rf_eval\radarstudio\Clients\\LabClient.dll'
[12:13:25] GM: 1 Guest (s) init
[12:13:25] GM: 1 Module(s) init
[12:13:25] GM: 2 Tab (s) init
[12:13:25] RSTD.Client_LoadXml()
[12:13:26] [RadarAPI]: Starting Matlab Engine..
[12:13:30] [RadarAPI]: Matlab Engine Started!
[12:13:36] [RadarAPI]: ar1.LoadSettings('C:\Users\boazme\AppData\Roaming\RSTD\ar1gui.ini')
[12:13:36] TESTING = false
[12:13:36]
[12:13:36] ***Script completed successfully.***
[12:14:16] [RadarAPI]: Opening Gpio Control Port()
[12:14:16] [RadarAPI]: Status: Passed
[12:14:16] [RadarAPI]: Opening Board Control Port()
[12:14:16] [RadarAPI]: Status: Passed
[12:14:17] [RadarAPI]: ar1.FullReset()
[12:14:17] [RadarAPI]: Status: Passed
[12:14:18] [RadarAPI]: Closing Board Control Port()
[12:14:18] [RadarAPI]: Status: Passed
[12:14:18] [RadarAPI]: Closing Gpio Control Port()
[12:14:18] [RadarAPI]: Status: Passed
[12:14:18] [RadarAPI]: ar1.SOPControl(2)
[12:14:18] [RadarAPI]: Status: Passed
[12:14:31] [RadarAPI]: ar1.Connect(3,115200,1000)
[12:14:32] [RadarAPI]: ar1.Calling_IsConnected()
[12:14:33] [RadarAPI]: ar1.SelectChipVersion("XWR1443")
[12:14:33] [RadarAPI]: Status: Passed
[12:14:34] [RadarAPI]: ar1.SelectChipVersion("XWR1443")
[12:14:34] [RadarAPI]: Status: Passed
[12:14:34] [RadarAPI]: ar1.SaveSettings('C:\Users\boazme\AppData\Roaming\RSTD\ar1gui.ini')
[12:15:12] [RadarAPI]: ar1.DownloadBSSFw("C:\\ti\\mmwave_dfp_01_00_00_01\\firmware\\radarss\\xwr12xx_xwr14xx_radarss.bin")
[12:15:12] [RadarAPI]: Downloading BSS ROM Legacy Binary..
[12:16:29] [RadarAPI]: ar1.DownloadMSSFw("C:\\ti\\mmwave_dfp_01_00_00_01\\firmware\\masterss\\xwr12xx_masterss.bin")
[12:16:29] [RadarAPI]: Downloading MSS Legacy Binary..
[12:17:19] [RadarAPI]: ar1.PowerOn(0, 1000, 0, 0)
[12:17:19] [RadarAPI]: Status: Failed, Error Type: RESP TIMEOUT
[12:17:19] [RadarAPI]: ar1.SaveSettings('C:\Users\boazme\AppData\Roaming\RSTD\ar1gui.ini')
Part Number:DS90UB914A-Q1
Hi,
According to the datasheet, LOCK pin is TRI-STATE during PDB=LOW as below.
Should the LOCK pin be connected with pull down resistor?
If yes, how much resistors should be set?
Best Regards,
Kuramochi
Part Number:DLPLIGHTCRAFTER
Hello,
I want to buy the DLPLIGHTCRAFTER 4500. But in the datasheet, it is mentioned that it is composed of the DLP4500FQE.
For my application, I need to use the DLP4500FQD.
Is it possible to change the two DLPs ? Does the DLPLIGHTCRAFTER 4500 with an DLP4500FQD exist ?
Is it possible to buy the mounting of the DLP4500FQD ?
Thank you for your response
Gusseau Tomy
EFFILUX
Tool/software:TI-RTOS
how to run flash api in ram , i am using tms570ls1224 with ccs 7.
changed sys_link.cmd file like below
is this correct?
how to check flash api run through ram?
/*----------------------------------------------------------------------------*/
/* sys_link_freeRTOS.cmd */
/* */
/*
* Copyright (C) 2009-2016 Texas Instruments Incorporated - www.ti.com
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN (0) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Linker Settings */
--retain="*(.intvecs)"
/* USER CODE BEGIN (1) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Memory Map */
MEMORY
{
VECTORS (X) : origin=0x00000000 length=0x00000020
KERNEL (RX) : origin=0x00000020 length=0x00008000
FLASH0 (RX) : origin=0x00008020 length=0x00137FE0
STACKS (RW) : origin=0x08000000 length=0x00000800
KRAM (RW) : origin=0x08000800 length=0x00000800
RAM (RW) : origin=(0x08000800+0x00000800) length=(0x0002F800 - 0x00000800)
/* USER CODE BEGIN (2) */
/* USER CODE END */
}
/* USER CODE BEGIN (3) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Section Configuration */
SECTIONS
{
.intvecs : {} > VECTORS
/* FreeRTOS Kernel in protected region of Flash */
.kernelTEXT : {} > KERNEL
.cinit : {} > KERNEL
.pinit : {} > KERNEL
/* Rest of code to user mode flash region */
.text : {} > FLASH0
.const : {} > FLASH0
/* FreeRTOS Kernel data in protected region of RAM */
.kernelBSS : {} > KRAM
.kernelHEAP : {} > RAM
.bss : {} > RAM
.data : {} > RAM
/* USER CODE BEGIN (4) */
.flashapi : load = FLASH, run = RAM, LOAD_START(FlashApi_LoadStart), LOAD_END(FlashApi_LoadEnd), LOAD_SIZE(FlashApi_LoadSize), RUN_START(FlashApi_RunStart), RUN_END(FlashApi_RunEnd), RUN_SIZE(FlashApi_RunSize),
{
F021_API_CortexR4_BE_v3D16.lib(.text)
}
/* USER CODE END */
}
/* USER CODE BEGIN (5) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Misc */
/* USER CODE BEGIN (6) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
Hi,
please suggest a audio mixer development kit or chip that is capable of receiving various audio inputs (Analog and digital) from different sources: USB(type C) MIC, AUX etc
So, receiving various inputs and being capable of smart management which audio is played like e.g. if music is played from one input, the volume of that decreased smoothly with other audio inputs on a volume level that is hearable.
Providing DSP option. Smooth mixing between Input sources. (Managing sound sources for 2.1 and other possible speaker sets)
wireless capability also needed wifi and BT
regards,
S.Sankardoss
Part Number:ADS1248
Dear Sirs,
I'm working on a four wired PT100 circuit which main goal is measure between -50, + 50 range with an stable resolution of 0,01C after a proper calibration.
PT100 will be in a circulating liquid bath so no self heating effect I guess.
I read all the forum, datasheet and application notes like
But a little confused about Gain, Excitation Current and Reference Resistor.
Please look my schematic and correct me if I'm wrong about following comments:
Suggested Reference voltage is mid supply in my case its 2,5V(AVDD=5VDC)
If I use 3,3kohm reference resistor(for 2.5V reference IEXC will be 0.75mA) For this project PT100 will be around 120 ohm for 50C.
Max PT100 voltage will be around 90mV. So Max gain at this point is 2,5/90m=27,78 not even 32!
Basically we need higher gain for better noise performance.
With a higher reference resistor like 10kohm. Can it help us? For 2.5V reference voltage IEXC is 0.25mA.
Max PT100 voltage will be around 30mV so Gain can be 64.
With higher reference resistor also effects low pass filter values. Do you think it is applicaple? Because filter resistor values goes high.
Can we extend reference voltage higher than 2.5V instead of mid suplly like 3-3.5V? Does it help? Of course values should meet common mode input range
AVSS + 0.1 V + (VRTD MAX · Gain) / 2 ≤ VCM ≤ AVDD – 0.1 V – (VRTD MAX · Gain) / 2
Most of te examples uses 20SPS data rate(for 50/60Hz rejection) and it gives 250Hz frequency at 14.8Hz(several times more)
If we dont mind about conversion time and for a better performance if we use 5 or 10 SPS rates what will be frequencies at this values-more or less?
Could you evaluate our situation and suggest for a precise measuring?
Also I will take care following point
-Iexc current should be meet with compliance voltage
-Keep the analog devices close to ADCs pins
-Do not cross the digital lines and analog ones
-Leave unused analog pins floating
-Do not float unused digital pins
-Use LDO supplies
-Temp coeff of reference resistor shoul be low as 2ppm/C or better
-Inlet and reference filetrs should be well matched
-AGround and DGround should be equal
Best Regards.
Kemal
Hi TI,
I cannot reach the THS8136 product page. Distributors like Mousers shows this part as NRND, and I also need a current data sheet.
We use this part in different applications since 2013.
Thank you
Guido
Part Number:MSP430FR5969
Tool/software: Code Composer Studio
hii..this is harikrishna paritala.
i am new to i2s protocol usage and am interfacing my mcu(msp430fr5969) with accelerometer..so when i am reading dev_id of accelerometer am not getting the value ..by the below code i used to read the value using i2c protocol without using interupts...any one please help to read the value and if possible please correct my code and add the instructons that i forgot....
#include <msp430.h>
char RXData;
#define REG_ADD 0x00
#define SLAVE_ADD 0x3B
void clock_init();
void Init_I2c();
char recieve(unsigned char reg_addr);
int main(void)
{
volatile char reg_value;
volatile char value;
WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer
PM5CTL0 &= ~LOCKLPM5;
P1OUT &= ~BIT0; // Clear P1.0 output latch
P1DIR |= BIT0; // For LED
P1SEL1 |= BIT6 | BIT7; // I2C pins
__bis_SR_register(GIE);
clock_init();
Init_I2c();
__delay_cycles(10000);
while(I2c_notread());
__delay_cycles(1000);
reg_value=recieve(REG_ADD);
if(reg_value!=0x00)
value=reg_value;
return 0;
}
void Init_I2c()
{
UCB0CTLW0 |= UCSWRST; // Software reset enabled
UCB0CTLW0 |= UCMODE_3 | UCMST | UCSYNC; // I2C mode, Master mode, sync
UCB0CTLW1 |= UCASTP_2; // Automatic stop generated
UCB0CTLW0|=UCSSEL_2; // after UCB0TBCNT is reached
UCB0BR0 = 0x0010; // baudrate = SMCLK / 10
UCB0BR1=0;
//UCB0TBCNT = 0x0005; // number of bytes to be received
UCB0I2CSA = SLAVE_ADD; // Slave address
UCB0CTL1 &= ~UCSWRST;
}
int I2c_notread()
{
if(UCB0STATW&UCBBUSY)
return 1;
else
return 0;
}
char recieve(unsigned char reg_addr)
{
char recieve_byte;
while(UCB0CTLW0&UCTXSTP);//ensure stop condition got sent
UCB0CTLW0|=UCTXSTT|UCTR;//I2C start condition with uctr flag for transmit
while(UCB0IFG&UCTXIFG0);
UCB0TXBUF=reg_addr;
//write register address in txbuf
__delay_cycles(1000);
while(UCB0IFG&UCTXIFG0);//wait untill the txbuf empty and transmitted
UCB0CTLW0&=~UCTR;//clear transmit flag for receieve
UCB0CTLW0|=UCTXSTT|UCTXNACK;//I2C START CONDITION WITH NACK FOR ONE BYTE READ//like resarting....
while(UCB0CTLW0&UCTXSTT);//start conditon sent?rxbuf full
recieve_byte=UCB0RXBUF;
UCB0CTLW0|=UCTXSTP;//I2C stop conditon
return recieve_byte;
}
void clock_init()
{
CSCTL0_H = CSKEY >> 8; // Unlock CS registers
CSCTL1 = DCOFSEL_0; // Set DCO to 1MHz
CSCTL2 = SELA__LFXTCLK | SELS__DCOCLK | SELM__DCOCLK;
CSCTL3 = DIVA__1 | DIVS__1 | DIVM__1; // set all dividers
CSCTL0_H = 0;
}
Part Number:TMS320F28335
Tool/software: Code Composer Studio
Dear Sirs,
I have a application which require 8 analog outputs and it must be driven by TMS320F28335 SPI interface.
I choose the part AD5724 from Analog Devices i.e for conversion of digital to analog volage(DAC 5724).Is sample code present for DAC 5724 WITH TMS320F28335 via SPI .please suggest me .
Part Number:LM22670
Hi,
I received the following question from my customer.
If RT resistance is set larger and larger(to few MΩ), what ohms is that switching frequency changes from RT frequency to internal frequency(500kHz) as below?
They are recognizing that the mode is set during start up of the regulator.
Please tell me for their reference.
Sorry for my odd question.
Best Regards,
Kuramochi
Part Number:TPS61187
Hi,
We are attempting to use the TPS61187 for driving 60 white leds at 20mA, and chips are failing after a while.
Here is the schematics, LEDs have been left out, but are exactly as specified in the datasheet and evm.
Input voltage is 12V which is supplied over a 1m to 1.5m long power cord. PWM is applied with duty cycles ranging from 0 to 1.
Is there anything that comes to mind that would make the TPS61187 fail over time (ranging from DoA to weeks or months)?
Part Number:LM5175
Hello,
Currently i have a working design using the LM5175 buck-boost controller.
The design works great and are currently in production. 20V-30V input, 24V 10A output.
The next project that i will be starting very soon is a system with very similar spec, only the output current will be increased to 20A (maybe higher).
According to the LM5175 product page, the maximum output current for this controller is rated to 20A.
I stop by this forum from time to time to do some browsing, and i have noticed over time that a 2-phase solution is recommended when outputting higher currents.
As i already have a working design made for 10A output, it would be great in terms of development time and time-to-market to reuse the design and put 2 circuits in parallell.
And therefore my question: Is it possible to use the LM5175 in such a parallell configuration? Maybe in a simular way as suggested in this app-note from Linear Technology?
If yes; is there any documentation available containing guidelines to do this with the LM5175?
If no; what other solutions can you suggest that i can use to meet my system requirements?
Best regards
-Mats
Part Number:TPS659037
To whom it may concern,
I have question about power sequence of TPS6590378.
(Customer Conditions)
1, Customer system is suddenly powered.
Also, when the system is turned off, the power supply is instantly interrupted.
2, Customer would like to design a system that automatically starts up and shuts down, when there is occurred above conditions.
(Question)
- For power up;
When POWERHOLD pin is connected to LDOVRTC(pull-up), is "ON Request" executed successfully?
- For power down;
If POWERHOLD pin is pulled up, is the shutdown executed normally?
Could you please confirm the attached file about the detail?
After you check the attached file, could you please point out if there is a problem part about the attached file?
Best regards,
Gk110
(Please visit the site to view this file)