Part Number: TL1963AKTTRG3
Need to clarification on Last two Digits on Part No : TL1963AKTTRG3
G3 - What it means
↧
TL1963AKTTRG3
↧
WEBENCH® Tools/LM25117-Q1: To high Duty Cycle allowed in WEBENCH
Part Number:LM25117-Q1
Tool/software: WEBENCH® Design Tools
WEBENCH setup:
LM25117QPMH/NOPB
Switching Frequency: 225.616kHz
Input: 5.3V to 38V
Output: 5.05V@4.5A
Duty Cycle: 97.12% at Vin = 5.3V
According to datasheet the maximum Duty Cycle is 90% at the selected Switching Frequency:
Best regards
Kim
↧
↧
ADS1298: Internal Test Signal
Part Number:ADS1298
Hello,
I have been trying to implement the internal test signal of the ADS1298 but I am having issues with it.
1- My register codes for the internal signal generation:
[0x41, 0x00, 0x85] [0x42, 0x00, 0x10] [0x43, 0x00, 0xC8] [0x45, 0x0B, 0x05]
Questions:
1- Why is the test signal only 0.1mV in amplitude? (If I am using the internal reference to 2.4V and gain 6)
1.1 - Why is the signal deviated from 0V?
2- Why is only channel 1 configured for the test signal? (The other channels don't have the correct signal)
3- The spikes I am gessing are the effect of corrupted data from the readings I am acquiring, since some times the DRDY signal goes low during one reading.
4- My internal noise measurements are also deviated from 0V, why is that?
Thank you very much in advance,
Best,
Sofia
----
I have valid readings of the devices ID, I have validated the check points of the circuit, followed the startup advices.
I have nothing connected to the analog input pins of the ADS1298.
I have verified my conversion code from this explanation:
e2e.ti.com/.../2856893
↧
TL1963AKTTRG3
Part Number: TL1963AKTTRG3
Tool/software: Code Composer Studio
Need Clarification on
Part Number: TL1963AKTTRG3
Need to clarification on Last two Digits on Part No : TL1963AKTTRG3
G3 - What it means
↧
Pinmux for PRU not working
Part Number:AM5728
Tool/software: Linux
Hello,
I need GPIO access for one PRU of the AM572x (Beagleboard X15). I'm using PROCESSOR-SDK-LINUX-RT-AM57X 05_03_00_07.
I used the Pinmux Tool to add the PRU GPI/GPO and the Pearl script to create the output for editing U-Boot. After that I edited the existing lines and added non-existing lines in mux_data.h (iodelay.txt to iodelay_cfg_array_x15_sr2_0[] and iopad.txt to core_padconf_array_essential_x15[]) .
I then recompiled U-Boot and copied the new MLO and u-boot.img to the boot partition.
I also added the content of devicetree.txt:
&dra7_pmx_core {
};
&dra7_iodelay_core {
// for linux kernel 4.4 / processor sdk 3.x
};
to am57xx-beagle-x15-revc.dts and recompiled linux-dtbs, but I think that does not effect anything. I then renamed the dtb to am57xx-beagle-x15-revc-new.dtb and added a line fdtfile=am57xx-beagle-x15-revc-new.dtb to uEnv.txt to be sure it is used (and it seems to work).
I booted Linux to let u-boot make the pinmux config and used the XDS110 and CCS to run a simple assembly programm on PR1_PRU0 to set and reset R30 for testing the pins. But I don't see any changes on the GPOs after writing to R30.
I think there is something wrong with my pinmux configuration. For my programm I assume that pin pr_1_pru0_gpo1 is position 1 << 1 in R30.
Is there any point that I am missing?
I attached the Pinmux project and the created files.
(Please visit the site to view this file)
↧
↧
RTOS/CC1350: coprocessor crash ASSERT handler shows bus fault
Part Number:CC1350
Tool/software: TI-RTOS
The setup is using the default coprocessor from the 15.4 stack and some 20 devices connected to the network.
The situation occurs when there is quite a lot of traffic going on in the network.
From debugging the collector I found out that the coprocessor was resetting through a RTOS assert.
I now was able to start the coprocessor in a debug session and put a breakpoint in the
Main_excHandler. Now when the coprocessor crashes and enters the handler I read out the registers and see that the CPU_SCS->CFSR register show a bus fault BFARVALID as well as PRECISERR.
The BFAR register itself contains 0xA78B9738 which indeed is a faulty address
The Main_excHandler also shows the excStack value of 0x200026a0 which in the memory browser points somewhere in the function
ti_sysbios_heaps_HeapMem_Instance_State_0_buf__A
Is the coprocessor somewhere running outside a buffer or something?
I can of course try to increase the heap but this will most likely only 'postpone' the error and not fix it.
Is there any known limitation for the maximum number of messages to send to the coprocessor?
↧
IWR1642BOOST: order IWR1642Boost
Part Number:IWR1642BOOST
Hi
Why can not I order more than five IWR1642BOOST?
How can I order 15 pcs?
Thanks
↧
BOOSTXL-PGA460: Echo data dump command for OWU communication
Part Number:BOOSTXL-PGA460
Hello,
I'm trying to use the BusDemo Energia example to get raw echo data from multiple connected transducers over OWU.
I took the example of the GetDistance demo to use runEchoDataDump and pullEchoDataDump, but the data I receive is not what I expected. It is also incredibly slow.
The code I use in the main loop is this:
Serial.println("Retrieving echo data dump profile. Wait...");
ussc.runEchoDataDump(edd-1); // run preset 1 or 2 burst and/or listen command
for(int n=0; n<128; n++) // get all echo data dump results
{
echoDataDumpElement = ussc.pullEchoDataDump(n);
Serial.print(echoDataDumpElement);
Serial.print(",");
}
And this is the data I receive over serial:
Retrieving echo data dump profile. Wait...
118,117,9,23,96,132,85,136,112,111,110,109,108,107,106,105,104,103,102,101,100,99,98,97,96,95,94,93,92,91,90,89,88,87,86,85,84,83,82,81,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,254,253,252,251,250,249,248,
0.00 Retrieving echo data dump profile. Wait...
86,85,41,23,96,132,85,136,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,254,253,252,251,250,249,248,247,246,245,244,243,242,241,240,239,238,237,236,235,234,233,232,231,230,229,228,227,226,225,224,223,222,221,220,219,218,217,216,
0.00
What can I do to get the correct echo return data? Is the slowness due to reading individual echo data values instead of doing a bulk read? If so, is there a way around this?
Kind regards,
Kai Dworski
↧
DS90UB934-Q1: Frequency and Amplitude on coaxial cable
Part Number:DS90UB934-Q1
Dear TI :
My custom have two quentions about the frequency and amplitude on coaxial cable in ds90ub934-q1 . thanks very much.
1. The frequency of the video stream on the coaxial cable is related to which factors, and how to calculate?
2. On the coaxial cable, the voltage amplitude of the video signal and control signal is related to those factors and how to calculate.
↧
↧
SN74LVC74A: Input transition rise and fall rate questions
Part Number:SN74LVC74A
Dear all,
My customer has below question for SN74LVC74A, for the delta t/ V 10ns/V（input transition rise and fall rate), isit for all input pins including CLR,CLK, PRE,D?
Thanks,
↧
CC2650MODA: Connection issue with Standalone CC2650MODA Module.
Part Number:CC2650MODA
Hello,
I have been working with CC2650 launchpad so that i can eventually work on CC2650MODA with minimal effort.
I wanted to just upload a Simple peripheral program onto CC2650MODA. (I have taken the Board files into consideration but that does not issue me in any way)
So I connected the pins 3.3V, GND, RESET, TMS, TCK. Just to check whether the CC2650MODA is detected by using the smartrf flash programmer 2.
Connecting the jumpers only to above 5 pins back onto the launchpad. The CC2650 IC on the launchpad gets detected instantly. Similarly for Booster Pack CC2650 plug-in module, as soon as do the connections it gets detected.
To my loss, the standalone CC2650MODA didn't get detected. Thinking my CC2650MODA standalone module might not be working, i tested on another. But received the same result.
NOTE: I have directly soldered wires onto the CC2650MODA standalone module for uploading the program as shown in the figure.
I have the image of all the connections that i have done.
I have also designed the PCB file, but the same issue existed. So if this works, I'll need help with that too.
↧
After 3 years live the secondary comparator triggers at the wrong levels
Part Number:BQ76PL536
I am using 4 Stacked BQ76PL536 in combination with a TM4C123G controller on a 14s battery system in a 4,4,3,3 configuration. The system is online since late 2015, with some longer offtimes during winter.
As i tested one battery, in total with 140 cells in series so 10 BMS boards, i recognised that the system is tripping overvoltage with the secondary protection but the cell voltages a actually lower.
The AFE is set 4.2V and 1000ms delay. This was verified in multiple tests and worked for 3 years. Just now the OV bits and the secondary protection are tripped before the voltage of 4.2V is reached.
We are talking about voltages between 4.12V to 4.18V depending on the boards, most of the time if i am rebooting (reinitialize and readdressing the AFEs) the cells which are indicating a OV are changing. They are not even the highest cells. CellVoltages are acccurate as always within +-2mV. For now i have lifted the OV Limit to 4.4V, but this is not acceptable since all the hardware safety circuits are now inactive and the safety relies on the software.
So what is happening here? I have no idea what to do! Let me know what data you need to know so we can figure this out.
↧
CapTIvate peripheral documentation?
Part Number:MSP430FR2633
I see that there is no real description of the capTIvate hardware in either the MSP430 4xx/2xx user guide or in the data sheet. Only a few registers are described, namely pin select multiplexers and interrupt control registers. I need details on the working of the calibration parameters, which is not described.
This is because my project needs to be able to power up into "touch detected" state, so I can't initially calibrate the peripheral without touch, like normal.
Is there a document that describes the peripheral?
If not, do you think it would make sense to try digging through generated code, or should I rather switch CPU manufacturers ?
↧
↧
LM5170-Q1 battery reverse protection
↧
CCS/CC3200MOD: Device
Part Number:CC3200MOD
Tool/software: Code Composer Studio
HI ,
I am using CC3200 Launchpad for project purpose ,
I am trying to configure the WIFI mode SSID and Password in my project .
i am able to assign the SSID , but not able to set the security mode and Password using below sequence of the code
#####################################################
if(g_uiSimplelinkRole != ROLE_AP && g_uiDeviceModeConfig == ROLE_AP )
{
//Switch to AP Mode
lRetVal = sl_WlanSetMode(ROLE_AP);
ASSERT_ON_ERROR(lRetVal);
setWlanConfig(); // Call this to ensure that AP mode has valid credentials
lRetVal = sl_Stop(SL_STOP_TIMEOUT);
g_usMCNetworkUstate = 0;
g_uiSimplelinkRole = sl_Start(NULL,NULL,NULL);
}
#########################################################
calling the below function
void setWlanConfig( void )
{
long int lRetVal;
// Set SSID name for AP mode
const uint8_t apName[] = "ER009";
const uint8_t domainName[] = "ertest.net";
unsigned char PdNm[] = "passwrd";
uint8_t length = sizeof(apName);
uint8_t len = sizeof(PdNm);
const unsigned char val = SL_SEC_TYPE_WPA_WPA2;
sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID, length, apName);
sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE,1, val);
sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, len, PdNm);
length = sizeof(domainName);
(void) sl_NetAppSet(SL_NET_APP_DEVICE_CONFIG_ID, NETAPP_SET_GET_DEV_CONF_OPT_DOMAIN_NAME, length, (unsigned char*)domainName);
sl_Stop(0xFF);
sl_Start(0, 0, 0);
}
but only SSID is visible in window machine and connecting without asking any Password.
so not able to configure password and security mode.
is any one can help out in this .
Thanks & regards
Shailendra Sen.
↧
TLV320DAC3203: Recommend audio DAC with 1Vrms output
Part Number:TLV320DAC3203
Hi Team,
Could you help recommend a audio DAC with 1Vrms output? Thanks.
Regards,
Nic
↧
ADS8555: ADS855x EVM PCB Project
↧
↧
BQ24773: how to detect a good/bad battery
Part Number:BQ24773
hi,
just looking for confirmation my understanding is correct...
At POR the Auto-Wake-Up is enabled.
After the PACK reaches 6V (or 3V) the charger sets charging current to 0 (good battery); if not (after 30min timeout) the Auto-Wake-Up bit is cleared.
So monitoring these 2 registers should be sufficient to assert the status of the charger.
Before asserting the battery is gone/bad/damaged (i.e. never reaches 3-6V), the amount of time needed to reach 3/6V can be estimated based on battery capacity/size.
is there any -even indicative- flowchart on how to set (Step by step) registers in BQ24773?
thanks a lot in advance
KR
Vincenzo
↧
DAC38J84: DAC38J84 common mode and compliance voltage
Part Number:DAC38J84
Hi,
Could you please explain this sentence " DAC38J84 operates at a common mode voltage (Vcm) of around 0.25 V or a bit higher." in document entitle "High Bandwidth, High Frequency Transmitter Solution".
In the DAC38J84 datasheet, the compliance output voltage is given as -0.5-0.6 V. Could you please elaborate more about it, is the compliance differential output voltages or the compliance output voltages on each output pin?
If it is the compliance output voltage on each pin, why VCM = 0.25 V?
Regards,
Samaneh
↧
TPS2373: 70W POE
Part Number:TPS2373
Hello
If customer POE need to support 70W, TPS2373-4 has suitable solution? Do we have EVM and transformer size for TPS2373-4 EVM? Thank you.
BR
Patrick
↧