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CCS/TMS320F28377D: How to set .stack size for CLA program?

September 17, 2019, 12:32 am
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Part Number: TMS320F28377D

Tool/software: Code Composer Studio

Dear:

I wrote a program in CLA(TMS320F28377D),
The program may be a little bit complex, so it used much stack.


So my question is:
(1) How to know if the stack allocated by system is enough?
(2) If the stack allocated by system is not enough, How can I enlarge the stack?

by the way， below cmd files is only for DSP core but not CLA:

SECTIONS
{

    /* Allocate uninitalized data sections: */
    .stack           : > RAMM1,          PAGE = 1

    ......

}

How about the CLA?

Thank you!

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TLVH431: TLVH431QDBVR

September 17, 2019, 12:36 am
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Part Number: TLVH431

Hi Sir,.

do TLVH431QDBVR claime in AEC-Q100 fileld ? thanks 

do you share us the TI AEC products classify ?

thanks

Philip 

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LM34936: should we need to add MOSFET to block 5V stamdby reverse to output?

September 17, 2019, 12:36 am
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Part Number: LM34936

Hello expert,

Customer want to use LM34936 for their PD application. They want to know should we add MOSFET to block reverse current from 5V_STB to LM34936 output. Other the other words, could LM34936 could turn on successfully when output have 5V? Thanks a lot!

Best regards,

Ann Lien

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UA78M: OTP and internal thermal- overload protection

September 17, 2019, 12:36 am
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Part Number: UA78M

We have below some questions on the internal thermal-overload protection of UA78M33IKVURG3. Please help.

1. Is there OTP function on UA78M33IKVURG3? 

2. If there were OTP function or similar,  what value is the value when over-temperature triggered?

3. What is the exact function mechanism of the “internal thermal-overload protection” as stated in the data sheet? How does the IC work when overload or over temperature happen?

Could the operation be explained how the current or load can be limited when temperature was too high? What is the exact relation or values?

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TMUX1208: NC pin

September 17, 2019, 12:37 am
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Part Number: TMUX1208

Hi,

My customer is connecting NC pin(3pin) with GND.

Is this allowed?

Best Regards,

Kuramochi

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TPS61169: Pin Open / Pin-to-Pin Short Test Result

September 17, 2019, 12:37 am
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Part Number: TPS61169

Hi Team,

My customer is evaluating TPS61169 for LED Backlight driver applicaiton now. And they request us to provide the Pin Open & Pin-to-Pin Short test results.
Could you send me the Pin Open & Pin-to-Pin Short test results of TPS61169DCK?

As application FMEA, if Pin-to-Pin short of external inductor happened, SW (1 pin)  would be shorted to VIN (5 pin).
Under the above condition, ILIM (Switching MOSFET current limit) feature of TPS61169 work every switching cycle, and Thermal Shutdown protection might be triggered in some cases. But the TPS61169 does not have any damages, right?
Thank you.

Best Regards,

Koshi Ninomiya

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CCS/BOOSTXL-DRV8320RS: How to customize the BOOSTXL_DRV8323RS GUI by increasing the number of motor poles?

September 17, 2019, 12:30 am
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Part Number: BOOSTXL-DRV8320RS

Tool/software: Code Composer Studio

Hi,

I'm using BOOSTXL_DRV8323RS with MSP430F5529 USB LaunchPad Evaluation Kit.

The BOOSTXL_DRV8323RS GUI for trapezoidal sensored motor control only allows selection of number of motor poles up to 12. 

However, the motor that I'm using consists of 22 poles.

May I know how can I modify this in the GUI selection?

Thank you.

Regards, 

Swee Yoong

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SN65DP159: 4K/60Hz HDMI monitor cannot display

September 17, 2019, 12:43 am
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Part Number: SN65DP159

data sheet is below.

I use SN65DP159RGZEVM and try to set the config follow data sheet, but i can't write Reg0Bh,

How cam i do for 4K/60Hz monitor? thanks!

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UCD3138: What mean HS Loop in ADC Control Register.

September 17, 2019, 12:47 am
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Part Number: UCD3138

Hello.

I want to make a ADC timing in a DPWM edge.

For example, if I want to synchronize ADC12 with DPWM0, how should I set the register?

And, what does "HS Loop" mean ? 

A below picture is in sniu028a.pdf

Regards,

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BQ27520EVM: Failing to obtain update status 01

September 17, 2019, 12:54 am
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Part Number: BQ27520EVM

Hello,

I have been trying to do the learning cycle on a Panasonic NCR18650B using the BQ27520EVM and bqstudio.

Following the several guides available I am unsure what can still be tried.

I am attaching the .gg File of how I am configuring the gauge. Using the ChemID 2012. It does say in the Database this is the Chemistry ID for my battery but the Description clearly says NiCoMn/carbon, although the battery is Li-Ion. Is this still the correct ChemID or should I run a Chem ID Identification?

After discharging the battery I send a Reset and an IT_Enable and wait for RUP_DIS and VOK bits to clear. Afterwards I start charging with 1.4 A until the Taper Current of 100 mA is reached and the FC bit gets set.

At this point I disconnect the charger and let the battery relax and expect the Update Status to change to "01" and update Qmax. But this never happens.

Do you have any suggestions as to why this update does not occur?

Best Regards

Silvio Waldmann

(Please visit the site to view this file)

(Please visit the site to view this file)

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CCS/AWR1843BOOST: mmWave demo visualizer doesn't work in debug mode with CCS and project from mmwave_automotive_toolbox_2_5_0

September 17, 2019, 12:59 am
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Part Number: AWR1843BOOST

Tool/software: Code Composer Studio

Hi, 

I wanna run the project---automated parking from mmwave_automotive_toolbox_2_5_0 in CCS.

But I get the information on CCS console:

And while I click the button "SEND CONFIG TO MMWAVE DEVICE", mmWave demo visualizer doesn't work :

So could you help me?

Thank you.

Best Wishes,

Jimmy

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TS3USB3000: market definition and compared with TS5USBC400/2

September 17, 2019, 1:00 am
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Part Number: TS3USB3000

Hello expert,

Customer want to choose USB3 MUX for their USB TYPE A port application. I found out we have TS3USB3000 and TS5USBC400/2 could support their application. And I also found the difference between these devices on bandwidth/OVPthreshold/Rdson/package...etc. We would like to know the market definition between these devices. For example, TS3USB3000 have higher bandwidth and what is the market does this device focus? And also which part is popular in these choices? Thanks a lot!

Best regards,

Ann Lien 

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CCS/CC2640R2F-Q1: Examples

September 17, 2019, 12:45 am
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Part Number: CC2640R2F-Q1

Tool/software: Code Composer Studio

i'm looking for examples for launchxl- CC2640R2 .So far I have installed CCS V-8.1, downloaded simplelink SDK and SAIL plug-in. I am getting an over bulky code file in there .

Are there any simple examples available ? Please suggest something related ASAP.

Regards

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DRV8301: like EVM Buck Converter 3.3V output gives 5.6V

September 17, 2019, 1:05 am
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Part Number: DRV8301

Hello, 

I designed DRV8301 Buck converter for gives 3.3V but I get 5.6V output. My design look pic.

Later I tried to change my DRV8301 Launchpad components to my new design again get 5.6V output.

And I reassembled the components on the EVM and it was giving 5.6V output on the EVM.

And I tried now Vsense input resistors calculation like TPS54160 and I give change output 0.2V-0.8V

How is it? 

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MSP430F5529: SPI reads 0xFF only

September 17, 2019, 1:07 am
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Part Number: MSP430F5529

I am trying to communicate with SST25VF040B-50-4I-SAE flash memory unit. All code is listed below:

  P4SEL &= ~BIT3;
  P4SEL |= BIT4;
  P4MAP4 |= PM_UCA1SIMO;
  P4SEL |= BIT5;
  P4MAP5 |= PM_UCA1SOMI
  P4DIR &= ~BIT3;

void spi_init() {
    UCA1CTL1 = UCSWRST;
    
    UCA1CTL0 |= UCCKPH | UCMSB | UCMST | UCSYNC; //master 3 pin synchronous
    UCA1CTL1 |= UCSSEL_2; //smclk
    UCA0BR0 = 0x02;                           // /2
    UCA0BR1 = 0;                              //
    UCA0MCTL = 0;                             // No modulation
    
    UCA1CTL1 &= ~UCSWRST;                             
}

void spi_csh()  //MSP_SPI_CS
{
    P4OUT |= BIT3;
}

void spi_csl()
{
    P4OUT &= ~BIT3;
}

uint8_t spix(uint8_t c) //SPI eXchange byte
{
  while (!(UCA1IFG & UCTXIFG)) /*EMPTY*/;
  UCA1TXBUF = c;
  while (!(UCA1IFG & UCRXIFG)) /*EMPTY*/;
  c = UCA1RXBUF;
  return(c);
}

int main(void){
  spi_init();
  uint8_t data1 = 0;
  uint8_t data2 = 0;
  uint8_t data3 = 0;

  /*JEDEC READ-ID sequence*/
  spi_csl();
  data123 = spix(0x9F);
  data1 = spix(0x00);
  data2 = spix(0x00);
  data3 = spix(0x00);
  spi_csh();
}

The READ_ID sequence should return values from the screenshot below, but returns only 0xFF.

During debug I watch data 1-3 and UCA1RXBUF and UCA1TXBUF, they change as described, but RXBUF always reads 0xFF.

Can you point out where I'm wrong?

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SN65HVD75: current consumption

September 17, 2019, 1:10 am
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Part Number: SN65HVD75

Hi,

In my design RS485 half duplex communication has SN65HVD75 is at one end and SN65HVD11 on the other end. The termination resitstor between Rx and Lx is 136 ohm at both end. Baud rate is 921600 and the cable length is about 8 meters. Can you help me on estimating current drawn by SN65HVD75 in this design. Please share if any supporting document justifying the calculations.

Thanks

Shanoj 

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INA300: INA300

September 17, 2019, 1:14 am
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Part Number: INA300

Hello,

Whats the max. current from the alert open-drain Output?

regards

Lothar

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AWR1843BOOST: Flashing through UART without the XDS110 Interface

September 17, 2019, 1:14 am
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TPS23754: how to change the EVM output to 18V

September 17, 2019, 1:16 am
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Part Number: TPS23754

Hi, 

My customer wants to test the EVM with 18V output, can you help to let us know how to change the EVM output to 18V? 

We are going to use below EVM: 

http://www.ti.com/tool/TPS23754EVM-383

From my understanding, we can get 18V output without changing the transformer on the EVM, is this correct? 

Please let us know how can we change the output to 18V, great thanks for your help. 

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INA226: Some quesitons

September 17, 2019, 1:18 am
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Part Number: INA226

Hi Sirs,

Sorry to bother you.

We would like to know does INA226 can do power limit function? how many the response time?

On INA226 Alert signal, is possible be issued when the power limit is triggered? How many the response time?

Thanks!!

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