I'm looking for the way to build a constant-current source in automotive application. Figure 18 of LM317 datasheet is a classic technique but I don't see the automotive spin off available yet. Could you please help to recommend some other automotive LDO that could source ~20mA current at maximum 18V Vout?

Great thanks for your help!

Peiheng.

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LAUNCHXL-CC26X2R1: Using OAD & Watchdog issue

January 2, 2019, 3:42 am

≫ Next: TMP117: NIST-traceabiliy documentation and calibration vs. storage time

≪ Previous: LM317: Automotive Replacement for Current Source Application

Part Number:LAUNCHXL-CC26X2R1

Hello,

I'm building a multi-role platform using the LAUCNCHXL-CC26X2R1(cc2652). I implemented OAD and added the Watchdog from 'driverlib'. Were the example 'Watchdog_CC26X2R1_LAUNCHXL_tirtos' works fine, the same implementation in my project, derived from 'ble5_multi_role' doesn't! I use 'simplelink_cc26x2_sdk_2_30_00_34'. Are certain adaptations required? Where can I find them?

I want to use the default, so an actual RESET.

regards,

Laurent

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TMP117: NIST-traceabiliy documentation and calibration vs. storage time

January 2, 2019, 2:46 am

≫ Next: TIDA-00779: PFC hardware testing failure issue

≪ Previous: LAUNCHXL-CC26X2R1: Using OAD & Watchdog issue

Part Number:TMP117

Hello,

we are planning to use the TMP117 within a medical device to measure temperature. In most use cases, our customers require us to have a certificate for the accuracy/calibration of the sensors.

Obviously, there is some documentation on this (as mentioned in this thread).

My questions are:

1. What does "NIST-traceble" (as in the datasheet) mean concretely?

2. Which documents on NIST can be provided by TI? Please send us the documents via email.

3. How does storage* (-time) affect the calibration?

Thanks in advance.

* storage conditions: no electrical connections; 21°C (70°F)

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TIDA-00779: PFC hardware testing failure issue

January 2, 2019, 3:44 am

≫ Next: CC2538DK: CC2538DK

≪ Previous: TMP117: NIST-traceabiliy documentation and calibration vs. storage time

Part Number:TIDA-00779

Hello,

Can you please provide the dimension of L1 Inductor because the manufacturer is not responding. so I am going for custom design. So can you please help me with details like:

Core name or dimensions:
conductor dia:
the number of turns:

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CC2538DK: CC2538DK

January 2, 2019, 3:57 am

≫ Next: TLV62569: Thermal Information

≪ Previous: TIDA-00779: PFC hardware testing failure issue

Part Number:CC2538DK

Dear,

Contiki codes work well with cc2538 Rev 1 (green board), but for Rev 2 (black board), it is like the transceiver is not enabled and nodes cannot send and receive data.

I did not find any solution for this in any forum.

Please help me solve this issue.

Thanks,

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TLV62569: Thermal Information

January 2, 2019, 3:59 am

≫ Next: MSP430F6736: DLMS library for MSP430

≪ Previous: CC2538DK: CC2538DK

Part Number:TLV62569

My customer is evaluating the thermal spec of TLV62569 comparing with TPS562200. TLV62569 has R_ƟJC(TOP)=137.5 and ѰJT31.4 which are relatively higher than TPS562200's 44.5 / 2.2. Is there an explanation why there is large gap between these two devices?

Customer is worrying about the thermal performance of this device. Kindly help to provide a relief on their concern.

Rgds
Kelvin

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MSP430F6736: DLMS library for MSP430

January 2, 2019, 4:04 am

≫ Next: CCS/IWR6843: Lab21 -area scanner logging the data

≪ Previous: TLV62569: Thermal Information

Part Number:MSP430F6736

I am opening a new thread because the other one was locked but I got no response as you promised, I was searching for the latest DLMS TI library for MSP 430 and they told me that they are going to contact me this has been initiated since 2 months and I got no response, so please I need an urgent response.

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CCS/IWR6843: Lab21 -area scanner logging the data

January 2, 2019, 4:08 am

≫ Next: AWR1642BOOST: Does using DCA1000EVM to stream user data make frame rate faster?

≪ Previous: MSP430F6736: DLMS library for MSP430

Part Number:IWR6843

Tool/software: Code Composer Studio

Hi ,

I have the IWR6843, and want to use the lab21 area scanner.

I'm trying to store the data at the area scanner (lab21).

The GUI provides this option.

I've installed the matlab runtime 2017.

This is working well for logging data at lab 19.

But at lab 21,when the "enable logging" is clicked, the GUI is blocked.

Please direct me

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AWR1642BOOST: Does using DCA1000EVM to stream user data make frame rate faster?

January 2, 2019, 4:22 am

≫ Next: Differences between TI's AM series and DM series

≪ Previous: CCS/IWR6843: Lab21 -area scanner logging the data

Part Number:AWR1642BOOST

Hi i am going to streaming user data to PC using DCA1000EVM.

When using demo visualizer, as i increase the number of data to plot(heat map, range profile), the frame rate of plot data decrease.

Does it really affect to the frame rate of streaming data to PC when i increase the number of data to stream?

If it does, when i use DCA1000EVM to stream user data, would it solve that kind of problem?

Thanks a lot

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Differences between TI's AM series and DM series

January 2, 2019, 4:24 am

≫ Next: TPS65986: firmware does not load in tps65986

≪ Previous: AWR1642BOOST: Does using DCA1000EVM to stream user data make frame rate faster?

Hi,

This is just a general question.

Can anyone tell the differences between TI's AM series and DM series processors ?

Best Regards,
Madhusoodana Bairy

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TPS65986: firmware does not load in tps65986

January 2, 2019, 4:32 am

≫ Next: Problem with uart0 flow disabling

≪ Previous: Differences between TI's AM series and DM series

Part Number:TPS65986

Hi, all!

I am trying to load the first firmware for tps65986 into spi flash.

Here is the result of the TPS6598x Application Customization Tool

TPS6598x Host Interface Tools gives the same result.

The TPS65986 is powered by VIN_3P3.
LDO_3V3, LDO_1V8A and LDO_1V8D is present. SPI Flash powered from LDO_3V3.

TPS65986 registers are in the following state:


Why PowerSource is Unknown?

Can I, through I2C, read the contents of Flash to a file?

On the oscilloscope I don’t see level changes on flash memory pins when the program is loading.

I ask for help to solve this problem

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Problem with uart0 flow disabling

January 2, 2019, 4:34 am

≫ Next: CC2541: ID0434: HEX file content at address 0x80D0 exceeds chip's 16 kB flash size

≪ Previous: TPS65986: firmware does not load in tps65986

Part Number:CC2530

Hi, I use UART0 and in the config I disable flow control and it is applied correctly when I check the U0CSR register (flow bit is set to 0). But the problem is that when I enable receive interrupt and just after uart receives data, P0.5 goes low while I have configured the P0SEL so that gpio mode for P0.5 is enabled. I need to P0.5 be set to 1 all the time. Also in the UARTDMARead() function I saw that P0.5 is set to zero and I commented it but still it goes low! What can be the problem?

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CC2541: ID0434: HEX file content at address 0x80D0 exceeds chip's 16 kB flash size

January 2, 2019, 4:37 am

≫ Next: UCC28780: Application for Battery Charger

≪ Previous: Problem with uart0 flow disabling

Part Number:CC2541

Hi,

I got this error "CC2541 - ID0434: HEX file content at address 0x80D0 exceeds chip's 16 kB flash size"when i am going to flash the .Hax file of my project.

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UCC28780: Application for Battery Charger

January 2, 2019, 4:51 am

≫ Next: LM4121: LM4121IM5-ADJ/NOPB

≪ Previous: CC2541: ID0434: HEX file content at address 0x80D0 exceeds chip's 16 kB flash size

Part Number:UCC28780

Hi TI experts,

Does UCC28780 suitable to be a battery charger? As I know, it has four mode SBP, LPM, ABM and AAM. If yes, would you provide reference design for us? Thanks.

↧

LM4121: LM4121IM5-ADJ/NOPB

January 2, 2019, 4:51 am

≫ Next: LM5170-Q1: five channel output LM5170 design

≪ Previous: UCC28780: Application for Battery Charger

Part Number:LM4121

Hello Sir/Madam,

I am using LM4121IM5-ADJ/NOPB in our design for 1.65 Voltage Reference.

I selected the resistors R1 = 36 K ohms and R2 = 100K for the VOUT = [Vref(1+ R1/R2] − Ibias• R1. Vref =1.216 and Ibias = 40 nA

My expected VOUT is 1.65 Volts but I am getting 1.60 V

Could you suggest how to resolve it?

Thanks and Regards,

Sarath Kumar C

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LM5170-Q1: five channel output LM5170 design

January 2, 2019, 4:56 am

≫ Next: CCS/DRA75: DRA75

≪ Previous: LM4121: LM4121IM5-ADJ/NOPB

Part Number:LM5170-Q1

Dear all,

i want to know how to design OPT circuit? there is 3.3KW 48V systom project, i don't find any design reference in datesheet.

2,how the IC to control the SYNCIN pin and SYNCOUT pin , to aviod the DCM mode ?

thanks a lot.

↧

CCS/DRA75: DRA75

January 2, 2019, 5:04 am

≫ Next: Linux/DLPDLCR2000EVM: Control brightness

≪ Previous: LM5170-Q1: five channel output LM5170 design

Part Number:DRA75

Tool/software: Code Composer Studio

Hi,

I'm trying to debug the ipc hello example of processor sdk. The ipc communication is configured for CORTEX M4 and A15. I have used the gel files for the IPU. I wanted to know how to view the shared memory region of a15 and m4 in CCS ?

Regards,

Padmesh

↧

Linux/DLPDLCR2000EVM: Control brightness

January 2, 2019, 5:10 am

≫ Next: ADS1292ECG-FE: ADS1292ECG-FE Labview PC software source file

≪ Previous: CCS/DRA75: DRA75

Part Number:DLPDLCR2000EVM

Tool/software: Linux

I have connected a DLPDLCR2000EVM - DLP® LightCrafter ™ Display 2000 Evaluation Board to a Raspberry Pi. I use the project www.mickmake.com/.../build-a-pi-zero-w-pocket-projector-project
That works well. I would like to set the projector darker to build a night clock in the bedroom. The DLP I can control over I2C. For example, i2cset -y 3 0x1b 0x0f 0x00 0x00 0x00 0x00 i Flip the picture Z.B. i2cset -y 3 0x1b 0x0f 0x00 0x00 0x00 0x01 i normal again.
But I do not understand how I can control the brightness of the 3 LEDs. Can someone write an example?

Many Thanks

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