Part Number:SN65HVDA100-Q1
Hi,
Customer wants the following two graph data.
(Customer want to use it for matching confirmation of LIN communication.)
1. VOH (VOL) vs Io graph ※Io=0mA to 10mA
2. VOH (VOL) vs Vsup graph ※Vsup=5V to 16V
(Datasheet fig7,8 does not have description in the range of 5V to 7V)
Do you have the above characteristic graph?
Best Regards,
Yusuke / Japan Disty
Part Number:LMK03328
Dear Team,
our customer has a question on programming EEPROM of LMK03328RHST - could you help finding the answer?
In the datasheet chapter 10.5.5 Write EEPROM, it is written:
We implemented EEPROM programming according to chapter 10.5.5 Write EEPROM but R136 did not increase (NVMCNT register in EEPROM increased). Register R136 is increased after power-on sequence.
a) Can we test NVMCNT register in EEPROM instead of R136?
b) Do you have any software that could build configuration files in other than *.epr format?
Thanks for your help,
Bartosz
Part Number:UCC28950
Hi,
I am using UCC28950 at one of my power supply 18V 30A , DC input 400V. It needs to operate in CC as well as in CV mode. so i am using external compensation realized by using op amp. when operated in open loop w/o MOSFET connection, if i give any reference to either of my CC error amplifier or CV error amplifier, i observe following voltages on each pin of 28950,
VREF = 4.98V
EA+ = 4.96V ( Op amp saturation (full output)due to no feedback )
COMP = 4.01v (Comp and EA- pins are shorted to form unity gain amplifier)
VSS(Soft start) = 4.23V
DelAB = 2.50V
DelCD = 2.50V
DElEF = 2.26V
Tmin = 0.911V
RT = 4.9V (tied to Vref Pin, Fswitching = 100KHz)
Rsum = 2.57V
DCM = 0.270V (tied to Vref via voltage divider)
ADELEF = 0.140V (tied to Vref via voltage divider)
ADEL = 1.78V V (tied to Vref via voltage divider)
CS = 0V ( Since no MOSFET connected no current Flowing through)
SYNC = open (no connection)
OUTA - OUT F = NO PWM AVAILABLE 0V
VDD= 15.5V.
Please find schematic for more reference.
The voltages an all pins are normal and under the limit.
What is the nature of waveform to be observed on RT pin. i am seeing pure DC waveform? Should it be a saw tooth or it should be DC.
Part Number:TMS320F28379D
Tool/software: Code Composer Studio
Hello,
I use CCS7 and a Development Kit :LAUNCHXL-F28379D and i install C2000.
I want re-use a project. This project works. I just have an other PC with the same window and i make the installation of C2000 V3 et controlesuite.
When I want build, i have this errors:
>> Compilation failure
subdir_rules.mk:7: recipe for target 'Cpu1.obj' failed
"C:/ti/C2000/C2000Ware_1_00_03_00_Software/driverlib/f2837xd/driverlib/adc.h", line 153: error #41: expected an identifier
"C:/ti/C2000/C2000Ware_1_00_03_00_Software/driverlib/f2837xd/driverlib/adc.h", line 154: error #41: expected an identifier
2 errors detected in the compilation of "../Cpu1.c".
gmake: *** [Cpu1.obj] Error 1
gmake: Target 'all' not remade because of errors.
L151 to L 155 of adc.h:
typedef enum
{
ADC_RESOLUTION_12BIT = 0x00, //!< 12-bit conversion resolution
ADC_RESOLUTION_16BIT = 0x40 //!< 16-bit conversion resolution
} ADC_Resolution;
I don't edit "adc.h" and I don't use other variable with name "ADC_Resolution".
I think i have a problems with the library or an other files. I remake the link for the files i see in the project but i can miss one.
I can seed you the project if you want (say how)
Please help me!
Thank you
Best regards,
Jean-Jacques Trognon
Part Number:BOOSTXL-DRV8320H
Hi team,
My customer is asking me why motor RPM varies by PWM frequency configuration even in duty cycle is set to 100%.
Here is customer's configurations.
- With BOOSTXL-DRV8320H, MSP-EXP430F5529LP and DRV832x software
- 24V supply
- Customer's motor (8 poles, max rated RPM without load: 4000RPM)
- Motor Speed = 100% fixed
Here is what the customer reported about PWM frequency and saturated RPM (indicated on GUI).
- When PWM = 10KHz, RPM = 1605
- When PWM = 20KHz, RPM = 3225
- When PWM = 25KHz, RPM = 4035
- When PWM = 30KHz, RPM = 4050
Could you please let me know why the motor speed is not about 4000RPM in case of 10KHz and 20KHz PWM frequency?
Thanks,
Nobuhiko Wasa
Part Number:CC2640R2F
Tool/software: Code Composer Studio
Hi,
I need to send an Indication with more that 20 Byte (with Bluetooth 4.0), can I send multi packet with Indicate or do I need to use Notify?
Thanks.
Part Number:BQ78350-R1
Hello,
I want to know, what I can control with these bits in this registers:
CEDV Gauging Configuration
SOC Flag Configuration
Could you get in more detail, what these bits are about?
FCCLEARRSOC, FDSETRSOC, TCSETVCT, FCSETVCT, TCCLEARRSOC, TCSETRSOC, TDCLEARRSOC and TDSETRSOC
VFLT_EN, FIXED_EDV0, EDV_CMP, EDV_EXT_CELL, CSYNC, CCT
I read the Technical Reference but I can figure out whats the purpose of this bits?
Thanks for help
Can replace MSP430F5418A single chip MSP430FR series and MSP432 series MSP432
Part Number:TMDSICE3359
I created a profibus master project based on the instruction provided in the PRU_ICSS_Profibus_Master_User_Guide document.
This was successful. When the project is compiled following errors arises.
Definitely I'm missing out with including some path. Please suggest me the all necessary/dependent path to be included. thank you
Regards
Vinay
Part Number:MSP430F5659
Hello TI Expert,
I have got a question from our customer and they are seeing some problems about the Calendar function of RTC_B of MSP430FR5659.
[Problem]
They sometimes see the problem that the RTC Calendar value becomes strange.
Please see the attached log file that they are issuing "time" command every seconds.
This is their firmware command that can get Year, Month, Day, Hour, Minutes and Seconds.
Normally, it should increase 1 second but it is increasing 87 or 97 years every 1 second.
After reaching at 4095 years, it goes back to 0 year and increasing 87 or 97 years again.
[Question]
This calendar function is normally working correct but they sometimes see this problem.
They do not think there is any mistake in the configuration of UCS or RTC register.
They are also reading some RTCCTL registers when the problem occurs. But we do not think there are any problem in these register values.
Thus, we do not know what the problem is. Do you have any comment to this problem and give any advice?
It would be helpful if you can tell us any advice or tell us what point they should check.
Best Regards,
Nobu Arai
(Please visit the site to view this file)
Tool/software:TI-RTOS
Hello ,
I have algorithm link for DSP performing sobel 3x3 edge detection.
This works fine in case of edges.
But output on display screen is getting trapped after 1 or 2 seconds,
I thought there will be a frame drop because of processing time. So i increased no.of output frames. still the issue is same.
Why this is happening??
Attached statics for the reference.
(Please visit the site to view this file)
Regards,
Kajal
Part Number:CC3200
Tool/software: TI C/C++ Compiler
Hi developers,
I´m trying to make OTA example with dropbox, and works fine until I get RUN_STAT_ERROR_DOWNLOAD_SAVE.
I show in forum i need to change cdn_url[256] to cdn_url[512] because is too long in the new link for DROPBOX_V2.
I try to change in ota_api.h and rebuilding project, after that i format the module and pass the files with uniflash, but when i debug step by step inside of sl_extLib_OtaRun(), the size is still 256 and not 512. What i need to do to generate .bin with the new changes?
Part Number:ONET4211LD
I don't like interfacing CML levels on DIN inputs. How about using OUTPOL as a mod input for modest speeds (<1MHz)? What is the best solution to ensure the deterministic state of the data input buffer?
Hi,
I am using edge_detector app from EVE release and modified the sobel kernel under imgsiglib. when i run the output file on the vayu simulator i see below error/warning, need help for the same.
============================================================================================================
EVE_1: Warning: Error with circular addressing, circ_buf = 8 out of range
Fatal Error occured in VCOP cycle estimator, please terminate
=============================================================================================================
thanks,
mohammed
Part Number:TPS24710
Hi,
I don't understand the meaning of "any series resistance between Css and the Gate pin" which is mentioned in the application report "Using Soft Start with TPS2471x and TPS24720".
So, please show the series resistance in the figure.
In addition, could you please tell me the meaning of "Adding this resistance would lead to undesired behavior during hot short tests" ?
Using Soft Start with TPS2471x and TPS24720
http://www.ti.com/lit/an/slva749/slva749.pdf
Best regards,
Kato
Part Number:TMS320F28075
Hi all
Currently I have a problem setting up the CAN acceptance filtering. Under certain conditions (it seems, when setting the CAN registers and there is traffic on the bus at the same time), I still receive unwanted messages. Note: most of the times the acceptance filtering works, only sometimes it doesn't.
I found in the reference manual (SPRUHM9B), section 21.14, the note, that one should take care of ongoing bus traffic while setting the CAN registers by resetting the MsgVal bit to 0. I did not consider this before and so I added the MsgVal reset. Unfortunately the behaviour didn't change.
My code before the MsgVal reset looked like this:
#define HWREGH(x) (*((volatile UInt16 *)(x)))
#define HWREG(x) (*((volatile UInt32 *)(x)))
void CanDriver::setupReceiveMailbox(const MailboxDefinition& mbxDef) const
{
// Message parameters
UInt32 messageBoxIndex; //!< Message Object ID (number)
UInt32 ui32MsgID; //!< The CAN message identifier used for 11 or 29 bit identifiers.
UInt32 ui32MsgIDMask; //!< The message identifier mask used when identifier filtering is enabled.
// register buffers
UInt32 ui32CmdMaskReg;
UInt32 ui32MaskReg;
UInt32 ui32ArbReg;
UInt32 ui32MsgCtrl;
messageBoxIndex = mbxDef.m_iMailboxNr; //!< Message Object ID (number)
ui32MsgID = mbxDef.m_canIdentifier; //!< The CAN message identifier used for 11 or 29 bit identifiers.
ui32MsgIDMask = 0x7FF &~ mbxDef.m_canMask; //!< The message identifier mask used when identifier filtering is enabled.
ui32CmdMaskReg = (CAN_IF1CMD_DIR | // Write message box object
CAN_IF1CMD_DATA_A | CAN_IF1CMD_DATA_B | // Set CAN Data
CAN_IF1CMD_MASK | // Set ID Mask
CAN_IF1CMD_ARB | // Set arbitraton value
CAN_IF1CMD_CONTROL // Set Control
);
// Configure the Mask Registers.
// Put the 11 bit Mask Identifier into the upper bits of the field
// in the register.
ui32MaskReg = ((ui32MsgIDMask << CAN_IF1ARB_STD_ID_S) & CAN_IF1ARB_STD_ID_M);
// Set the UMASK bit to enable using the mask register.
ui32MsgCtrl = CAN_IF1MCTL_UMASK;
// Configure the Arbitration registers.
// Set the 11 bit version of the Identifier for this message object.
// The lower 18 bits are set to zero.
// Mark the message box as valid.
ui32ArbReg = ((ui32MsgID << CAN_IF1ARB_STD_ID_S) & CAN_IF1ARB_STD_ID_M) | CAN_IF1ARB_MSGVAL;
if (!mbxDef.m_bOverwriteProtection) {
// Mark this as the last entry if this is not the last entry in a FIFO.
ui32MsgCtrl |= CAN_IF1MCTL_EOB;
}
DINT;
// Wait for busy bit to clear
while(HWREGH(CAN_BASE + CAN_O_IF1CMD) & CAN_IF1CMD_BUSY)
{
}
// Enable receive interrupts
ui32MsgCtrl |= CAN_IF1MCTL_RXIE;
// Write out the registers to program the message object.
HWREGH(CAN_BASE + CAN_O_IF1CMD + 2) = ui32CmdMaskReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1MSK) = ui32MaskReg & 0xFFFF;
HWREGH(CAN_BASE + CAN_O_IF1MSK + 2) = ui32MaskReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1ARB) = ui32ArbReg & 0xFFFF;
HWREGH(CAN_BASE + CAN_O_IF1ARB + 2) = ui32ArbReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1MCTL) = ui32MsgCtrl & 0xFFFF;
// Transfer the message object to the message object specific by ui32ObjID.
HWREGH(CAN_BASE + CAN_O_IF1CMD) = messageBoxIndex & CAN_IF1CMD_MSG_NUM_M;
EINT;
}With the reset of MsgVal it looks like:
#define HWREGH(x) (*((volatile UInt16 *)(x)))
#define HWREG(x) (*((volatile UInt32 *)(x)))
void CanDriver::setupReceiveMailbox(const MailboxDefinition& mbxDef) const
{
// Message parameters
UInt32 messageBoxIndex; //!< Message Object ID (number)
UInt32 ui32MsgID; //!< The CAN message identifier used for 11 or 29 bit identifiers.
UInt32 ui32MsgIDMask; //!< The message identifier mask used when identifier filtering is enabled.
// register buffers
UInt32 ui32CmdMaskReg;
UInt32 ui32MaskReg;
UInt32 ui32ArbReg;
UInt32 ui32MsgCtrl;
messageBoxIndex = mbxDef.m_iMailboxNr; //!< Message Object ID (number)
ui32MsgID = mbxDef.m_canIdentifier; //!< The CAN message identifier used for 11 or 29 bit identifiers.
ui32MsgIDMask = 0x7FF &~ mbxDef.m_canMask; //!< The message identifier mask used when identifier filtering is enabled.
ui32CmdMaskReg = (CAN_IF1CMD_DIR | // Write message box object
CAN_IF1CMD_DATA_A | CAN_IF1CMD_DATA_B | // Set CAN Data
CAN_IF1CMD_MASK | // Set ID Mask
CAN_IF1CMD_ARB | // Set arbitraton value
CAN_IF1CMD_CONTROL // Set Control
);
// Configure the Mask Registers.
// Put the 11 bit Mask Identifier into the upper bits of the field
// in the register.
ui32MaskReg = ((ui32MsgIDMask << CAN_IF1ARB_STD_ID_S) & CAN_IF1ARB_STD_ID_M);
// Set the UMASK bit to enable using the mask register.
ui32MsgCtrl = CAN_IF1MCTL_UMASK;
// Configure the Arbitration registers.
// Set the 11 bit version of the Identifier for this message object.
// The lower 18 bits are set to zero.
// Mark the message box as valid.
ui32ArbReg = ((ui32MsgID << CAN_IF1ARB_STD_ID_S) & CAN_IF1ARB_STD_ID_M) | CAN_IF1ARB_MSGVAL;
if (!mbxDef.m_bOverwriteProtection) {
// Mark this as the last entry if this is not the last entry in a FIFO.
ui32MsgCtrl |= CAN_IF1MCTL_EOB;
}
DINT;
// Wait for busy bit to clear
while(HWREGH(CAN_BASE + CAN_O_IF1CMD) & CAN_IF1CMD_BUSY)
{
}
// Clear MsgVal bit to avoid bus traffic to interfere with write access
HWREGH(CAN_BASE + CAN_O_IF1CMD + 2) = (CAN_IF1CMD_DIR | CAN_IF1CMD_ARB) >> 16;
HWREGH(CAN_BASE + CAN_O_IF1ARB) = 0;
HWREGH(CAN_BASE + CAN_O_IF1ARB + 2) = 0;
// Transfer the message object to the message object specific by ui32ObjID.
HWREGH(CAN_BASE + CAN_O_IF1CMD) = (messageBoxIndex & CAN_IF1CMD_MSG_NUM_M);
// Wait for busy bit to clear
while(HWREGH(CAN_BASE + CAN_O_IF1CMD) & CAN_IF1CMD_BUSY)
{
}
// Enable receive interrupts
ui32MsgCtrl |= CAN_IF1MCTL_RXIE;
// Write out the registers to program the message object.
HWREGH(CAN_BASE + CAN_O_IF1CMD + 2) = ui32CmdMaskReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1MSK) = ui32MaskReg & 0xFFFF;
HWREGH(CAN_BASE + CAN_O_IF1MSK + 2) = ui32MaskReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1ARB) = ui32ArbReg & 0xFFFF;
HWREGH(CAN_BASE + CAN_O_IF1ARB + 2) = ui32ArbReg >> 16;
HWREGH(CAN_BASE + CAN_O_IF1MCTL) = ui32MsgCtrl & 0xFFFF;
// Transfer the message object to the message object specific by ui32ObjID.
HWREGH(CAN_BASE + CAN_O_IF1CMD) = messageBoxIndex & CAN_IF1CMD_MSG_NUM_M;
EINT;
}As I said, it didn't change the behaviour and acceptance filltering is still not working all the time.
Any ideas? Did I miss something? Consider there might be bus traffic while calling the setupReceiveMailbox method...
Cheers benjo
Part Number:DAC8760
Hi,
I need help in both hardware and Software. We have designed the board with PSOC 4 and DAC8760 to provide DAC output. But while Checking we got 700 milli Voltage from Refout Pin (which in turn connected to Refin pin). Can we give 5V directly to Refout Pin???
And below I have pasted my code in which the program uses Hardware SPI, even checked with the Oscilloscope that I have transmitted data Successfully but while attempting to read Can't read any data from register.
#include "project.h"
#include "stdio.h"
int main(void)
{
int i=0,x,y;
char str[10];
CyGlobalIntEnable;
SPI_Initialise();
//SPI_1_SpiSetActiveSlaveSelect(SPI_1_SPI_SLAVE_SELECT0);
//Slave Select as Seperate Pin SS_2
//Resetting DAC8760
SS_2_Write(1);
SPI_1_SpiUartWriteTxData(0x56);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x00);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x01);
CyDelayUs(50);
SS_2_Write(0);
CyDelayUs(SPI_Delay);
//Writing First Initial data to DAC Data Register
SS_2_Write(1);
Clear_Write(1);
SPI_1_SpiUartWriteTxData(0x01);
Clear_Write(0);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x00);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x00);
CyDelayUs(50);
SS_2_Write(0);
// Writing to the Control Register for 0 to 10 V Output
SS_2_Write(1);
SPI_1_SpiUartWriteTxData(0x55);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x10);
CyDelayUs(SPI_Delay);
SPI_1_SpiUartWriteTxData(0x01);
CyDelayUs(50);
SS_2_Write(0);
CyDelay(1000);
for(;;)
{
//Writing 10V Data to the DAC data Register
SS_2_Write(1);
Clear_Write(1);
SPI_1_SpiUartWriteTxData(0x01);
Clear_Write(0);
SPI_1_SpiUartWriteTxData(0xFF);
SPI_1_SpiUartWriteTxData(0xFF);
CyDelayUs(50);
SS_2_Write(0);
CyDelay(1000);
//Writing 5V Data to the DAC data Register
SS_2_Write(1);
Clear_Write(1);
SPI_1_SpiUartWriteTxData(0x01);
Clear_Write(0);
SPI_1_SpiUartWriteTxData(0x7F);
SPI_1_SpiUartWriteTxData(0xFF);
CyDelayUs(50);
SS_2_Write(0);
CyDelay(1000);
}
}
Thank You.
Part Number:LAUNCHXL-CC1310
Hi
We have a requirement of making a 1000 sensor tags for a student monitoring solution. We need to check the students position and other information from the tags they are wearing from a Centralized Server.
We need to establish a bi directional communication between the tags and the access points, since the students will be moving the communication should establish to the nearest access point and it should switch from one access point other.
So what would be ideal Topology /Technology for a monitoring solution Whether CC1310 and Contiki-6lowpan suites the above application or not, whether mobility will be a problem in this case
Whether BLE will be better solution than this, if so how
Please help in this regard
Thanks & Regards
Ajay
Part Number:TPS1H100-Q1
Hi,
Does TPS1H100-Q1 latch up by reverse voltage?
When an open short test is performed, the output voltage becomes larger than the input voltage.
（It is about 70 mV higher.）
Under these conditions, Customer wants to know what action TPS1H100-Q1 will perform.
Background of the question,
In the past,Other devices latched up by reverse voltage.
For that reason, Customer wants to check the possibility of latching up by reverse voltage.
Could you give me your advice?
Best Regards,
Yusuke / Japan Disty