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CC2640R2F: CC2640R2F one master-multi slave function debug

September 3, 2018, 6:52 pm
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Part Number:CC2640R2F

When debugging the CC2640R2F one master-multi slave function,using Simple_peripheral and Simple_central project,with default parameters,It can connect 2 slaves steadily.

When we want to connect a third slave, there will be time out and no connection.

The following configuration is re-compiled in the precompiler, but the result is that even the second connections will not connected.


The question is, why the second slave disconnected under my test condition?

How to modify the configuration correctly if need connect 3 or more slaves. Thanks!

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LM2623: Calculation of the Inductor

September 3, 2018, 6:54 pm
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Part Number:LM2623

Hi Sir/Mdm,

For Inductor value, if our output voltage 12V(RF1=867K & RF2=100K), what is the good value of the Inductor?

Regard's

Jason Teoh

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DRV8802: DECAY pin

September 3, 2018, 6:55 pm
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Part Number:DRV8802

Hi

I have some question about DECAY pin.

- Is there Pull-up resister or Pull-down resister at this pin?

- If there is, how much is the resister?

Best Regards,

Koji Hamamoto

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CCS/DLP-7970ABP: Porting Example Code to CC1310 Launchpad

September 3, 2018, 7:00 pm
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Part Number:DLP-7970ABP

Tool/software: Code Composer Studio

Host OS: Win10 64-bit

CCSv8.1.0.00011

CC1310 LaunchPad Rev: 1.4

DLP-7970ABP v4.5

Greetings,

I am new to board programming and am attempting to program a CC1310 Launchpad (with a mounted DLP-7970 board) with the example firmware provided here:  http://www.ti.com/lit/zip/sloc297.  I know that the example firmware is designed for the MSP-EXP430G2, and that I am going to have to make some changes if I want to program the CC1310.  I have read through the 'Porting TI Drivers" page in Resource Explorer and, so far I have:

  • imported the empty CC1310 example project provided in the Resource Explorer
  • copied over the Hardware and NFC folders from the TRF7970ABP_RFID_Reader_Demo to the empty CC1310 project
    • Replaced the TRF7970ABP_RFID_Reader_Demo uart files with the cc1310 uart files
    • Excluded Hardware/VLO_Library.asm from build (this was causing a bunch of errors when compiling and I do not know its purpose)
    • Changed  #include "MSP430.h" in mcu.h to #include "CC1310_LAUNCHXL.h"

Here is a screenshot of the Project Explorer:

I am getting compilation errors in mcu.c, spi.c, and trf79xxa.c files in the hardware folder.  

>> Compilation failure
Hardware/subdir_rules.mk:30: recipe for target 'Hardware/mcu.obj' failed
"../Hardware/mcu.c", line 74: error #20: identifier "TA0CTL" is undefined
"../Hardware/mcu.c", line 74: error #20: identifier "TACLR" is undefined
"../Hardware/mcu.c", line 75: error #20: identifier "TASSEL_3" is undefined
"../Hardware/mcu.c", line 77: error #20: identifier "TA0CCTL0" is undefined
"../Hardware/mcu.c", line 77: error #20: identifier "CCIE" is undefined
"../Hardware/mcu.c", line 78: error #20: identifier "TA0CCR0" is undefined
"../Hardware/mcu.c", line 79: error #20: identifier "MC_1" is undefined
"../Hardware/mcu.c", line 79: error #20: identifier "TASSEL_1" is undefined
"../Hardware/mcu.c", line 118: error #20: identifier "CALBC1_8MHZ" is undefined
"../Hardware/mcu.c", line 126: error #20: identifier "DCOCTL" is undefined
"../Hardware/mcu.c", line 127: error #20: identifier "BCSCTL1" is undefined
"../Hardware/mcu.c", line 128: error #20: identifier "CALDCO_8MHZ" is undefined
"../Hardware/mcu.c", line 131: error #20: identifier "P2SEL" is undefined
"../Hardware/mcu.c", line 131: error #20: identifier "BIT6" is undefined
"../Hardware/mcu.c", line 131: error #20: identifier "BIT7" is undefined
"../Hardware/mcu.c", line 134: error #20: identifier "XTS" is undefined
"../Hardware/mcu.c", line 135: error #20: identifier "DIVA_1" is undefined
"../Hardware/mcu.c", line 138: error #20: identifier "BCSCTL3" is undefined
"../Hardware/mcu.c", line 138: error #20: identifier "LFXT1S_2" is undefined
19 errors detected in the compilation of "../Hardware/mcu.c".

>> Compilation failure
Hardware/subdir_rules.mk:37: recipe for target 'Hardware/spi.obj' failed
"../Hardware/spi.c", line 68: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 68: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 129: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 129: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 139: error #20: identifier "IFG2" is undefined
"../Hardware/spi.c", line 139: error #20: identifier "UCB0TXIFG" is undefined
"../Hardware/spi.c", line 142: error #20: identifier "UCB0TXBUF" is undefined
"../Hardware/spi.c", line 144: error #20: identifier "UCB0STAT" is undefined
"../Hardware/spi.c", line 144: error #20: identifier "UCBUSY" is undefined
"../Hardware/spi.c", line 173: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 173: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 192: error #20: identifier "UCB0STAT" is undefined
"../Hardware/spi.c", line 192: error #20: identifier "UCBUSY" is undefined
"../Hardware/spi.c", line 222: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 222: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 247: error #20: identifier "UCB0TXBUF" is undefined
"../Hardware/spi.c", line 249: error #20: identifier "UCB0STAT" is undefined
"../Hardware/spi.c", line 249: error #20: identifier "UCBUSY" is undefined
"../Hardware/spi.c", line 251: error #20: identifier "UCB0RXBUF" is undefined
"../Hardware/spi.c", line 260: error #20: identifier "UCB0TXBUF" is undefined
"../Hardware/spi.c", line 262: error #20: identifier "UCB0STAT" is undefined
"../Hardware/spi.c", line 262: error #20: identifier "UCBUSY" is undefined
"../Hardware/spi.c", line 285: error #20: identifier "UCB0CTL1" is undefined
"../Hardware/spi.c", line 285: error #20: identifier "UCSWRST" is undefined
"../Hardware/spi.c", line 286: error #20: identifier "UCB0CTL0" is undefined
"../Hardware/spi.c", line 286: error #20: identifier "UCMSB" is undefined
"../Hardware/spi.c", line 286: error #20: identifier "UCMST" is undefined
"../Hardware/spi.c", line 286: error #20: identifier "UCSYNC" is undefined
"../Hardware/spi.c", line 290: error #20: identifier "UCSSEL_2" is undefined
"../Hardware/spi.c", line 292: error #20: identifier "UCB0BR0" is undefined
"../Hardware/spi.c", line 293: error #20: identifier "UCB0BR1" is undefined
"../Hardware/spi.c", line 294: error #20: identifier "P1SEL" is undefined
"../Hardware/spi.c", line 294: error #20: identifier "BIT5" is undefined
"../Hardware/spi.c", line 294: error #20: identifier "BIT6" is undefined
"../Hardware/spi.c", line 294: error #20: identifier "BIT7" is undefined
"../Hardware/spi.c", line 295: error #20: identifier "P1SEL2" is undefined
"../Hardware/spi.c", line 297: error #20: identifier "P2DIR" is undefined
"../Hardware/spi.c", line 297: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 298: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 328: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 328: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 366: error #20: identifier "P2OUT" is undefined
"../Hardware/spi.c", line 366: error #20: identifier "BIT1" is undefined
"../Hardware/spi.c", line 387: error #20: identifier "P2DIR" is undefined
"../Hardware/spi.c", line 387: error #20: identifier "BIT2" is undefined
"../Hardware/spi.c", line 389: error #20: identifier "BIT0" is undefined
"../Hardware/spi.c", line 389: error #20: identifier "BIT7" is undefined
"../Hardware/spi.c", line 390: error #20: identifier "P2IES" is undefined
"../Hardware/spi.c", line 394: error #20: identifier "P2OUT" is undefined
49 errors detected in the compilation of "../Hardware/spi.c".
gmake: *** [Hardware/spi.obj] Error 1

I am getting the same kind of errors in the NFC/felica.c iso14443a.c iso14443b.c iso15693.c and nfc_app.c files.  These are the only kind of errors I am getting.

My guess is that these undefined terms are references to pins specific to the MSP430 board, and are undefined when compiled in the cc1310 project.  Is this correct to assume?  If so, how do I go about redefining these pins?  

If that is not the case, what steps would you take to get this firmware compatible with the CC1310 Launchpad?  Is porting this project to the CC1310 even possible?

-Michael

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TPS61169: TPS61169 Design Spec question

September 3, 2018, 7:00 pm
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Part Number:TPS61169

Dear TI Team,

During the review of TPS61169, we would like to inquire if we can confirm that the specifications we want are available.

We are planning to design WLED as 3S10P with 9V 200mA specification.
Can you confirm that it is possible with TPS61169?

Thanks.

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DRV5032: How to select the right magnetic steel for Hall effect sensor

September 3, 2018, 7:01 pm
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Part Number:DRV5032

Hi team,

   I want to use this product to measure the speed of the motor (like an encoder). Could you please help me solve below questions,

  • How to choose the right magnets for this products? Do you have some recommend parts for this device? 
  • If I want to realize low power consumption application, do we have some other products to realize this requirement?
  • Do we have related TIDA to demo this device how to measure motor speed?

Thank you very much!

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CCS/TMS320F28034: Full hex File creation

September 3, 2018, 7:01 pm
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Part Number:TMS320F28034

Tool/software: Code Composer Studio

I can create the hex file in bin folder but it is not a full hex file. I need full hex file to download the target.

ROMS

{

ROW1: origin=0x003EE000 len=0x7F00 romwidth=16

files={ bin\Demo.hex }

}

Please help. thanks in advance.

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RTOS/CC3220: What can i do for SL_DEVICE_EVENT_FATAL_DEVICE_ABORT error ?

September 3, 2018, 7:02 pm
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Part Number:CC3220

Tool/software: TI-RTOS

Hi, TI Engineer,

I used CC3220 to initially complete product development, but when the router protocol type connected to the device is 802.11ac, the SL_DEVICE_EVENT_FATAL_DEVICE_ABORT error will occur at high frequency, especially when the signal is weak.
I tried to call sl_Stop followed by sl_Start after error occur, but it didn't help, it still caused the whole chip to restart(WDT). I don't want the whole chip to restart, as it will cause other accidents. If I restart the network separately and recover, what should I do? ? Or what should I do if I don't reset the entire chip after encountering this error?

Waiting for your reply online, thanks!

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Interfacing of 2N3904 with Arduino

September 3, 2018, 7:22 pm
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Hi,

I am trying to control a speaker with arduino and I am using 2N3904 for this purpose. I am designing a device where I want to turn ON or OFF the speaker automatically with voice command. I am using EasyVR shield for that purpose and its working fine. My problem is with 2N3904 which is not going into forward biased state when I send signal from Arduino so someone can help me out here.

Thanks.

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SN74AXC8T245: What is guaranteed output skew?

September 3, 2018, 7:24 pm
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Part Number:SN74AXC8T245

Hi team,

Some documents about SN74AXC family said this family has "Guaranteed output skew...", However, i cannot find any output skew spec on SN74AXC8T245 datasheet. Can anyone tell me how do we guaranteed this spec?

Thank you,

John

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TPD6E001: Dynamic Resistance of TPD6E001

September 3, 2018, 7:26 pm
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Part Number:TPD6E001

Hello,

I'm trying to make the comparison chart of ESD protection products. In this chart, I would like to add the data of Dynamic Resistance.

Unfortunately, TPD6E001's datasheet don't have the parameter of Dynamic Resistance. Could you provide me this parameter?

Thank you for your help.

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BQ24295: Q4 withstand current

September 3, 2018, 7:27 pm
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Part Number:BQ24295

Dear E2E member,

Our customer have a application that when use battery, the maximum peak current is 3.5A.

Could you let us know how much is the withstand current of Q4 in the BQ24295?

Thanks!

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TMS570LS3137: on-chip flash memory read with Flash ECC enabled

September 3, 2018, 7:35 pm
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Part Number:TMS570LS3137

Hello,

We are using below tools to flash our image on TMS570LS3137 microcontroller:

XDS200 USB emulator

CCS version 8.0.0

And the generated .out file is about 300KB of size. when .out file is loaded on to flash bank 0 using emulator,

Case1:

i can see data in memory browser in bank zero till binary data is available (this is with flash ECC enable using function "_coreEnableFlashEcc_") if i try to access flash memory where binay data is not available i am seeing "Target fail to read 0x-------" in expression window.

Case 2:

with Flash ECC not enabled (commented "_coreEnableFlashEcc_" function call in startup code), i am able to access all flash locations. when i try  to access flash memory where binary data is not available i am seeing as "0xFFFFFFFF" in expression window.

Can anyone please help why this is happening?

and is there any way to access flash memory where data is not available and with flash ECC enabled? 

Thanks in advance.

Regards,

Kalyan

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TPS3851: what's the meaning of standard timing and extended timingg WDT- TPS3851

September 3, 2018, 7:44 pm
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Part Number:TPS3851

Hi ,

I have a question about TPS3851 time out configure. datasheet shows two equation to calculate time out, as below,   what's the meaning of extended timing?

how to choose between standard and extended?

thank you

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CCS/TDA2: how can i do eve work in Visual Studio?

September 3, 2018, 7:54 pm
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Part Number:TDA2

Tool/software: Code Composer Studio

use   c_intrinsics_host_port-0_91_00-Setup.exe      i   can  emulation   C66  code  in  Visual  Studio.

now  i  am  do  a   eve  project   ，i   am plan  to   do  this  in   Visual  Studio  first     then   i   have   to   move  the code  into  CCS  project  and  run  it  on the  evm board!

i   make  a  new Visual  Studio   project    and  i  put    ti_ccsv7\ccsv7\tools\compiler\arp32_1.0.9\include\vcop\vcop.h    in  the  project   as  many  eve function  is emulat  is   vcop.h       #define VCOP_HOST_EMULATION   1.

arp32.h  and  vcopmem.h   also  put  in  the  project       but    complie   have  many  problems  in  arp32.h   vcop.h

    179    IntelliSense:  未定义标识符 "VCOP_MEMVIEW"    e:\ti6657\vc_program\eve_sample\eve_sample\vcop.h    2323    22    eve_sample
    170    IntelliSense:  未定义标识符 "builtin"    e:\ti6657\vc_program\eve_sample\eve_sample\arp32.h    108    14    eve_sample
    153    IntelliSense:  不允许使用不完整的类型    e:\ti6657\vc_program\eve_sample\eve_sample\arp32.h    83    14    eve_sample
    147    IntelliSense:  不允许使用不完整的类型    e:\ti6657\vc_program\eve_sample\eve_sample\arp32.h    73    14    eve_sample
错误    107    error C2374: “__attribute__”: 重定义；多次初始化    e:\ti6657\vc_program\eve_sample\eve_sample\arp32.h    82    1    eve_sample





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TPSM846C23: 0.72Vout / 300A

September 3, 2018, 8:00 pm
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CMRT 5.11

September 3, 2018, 8:01 pm
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Dear Team

As I know CRMT revision have being changed to 5.11.
We use lot of TI IC product in our product .
And our customer request us to provide the TI CMRT revision 5.11 form(file attached)
Could you help me to reply the questions in the form?? (or let me kown a contact person )

Thank you so much!(Please visit the site to view this file)

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Question of LED driver

September 3, 2018, 8:07 pm
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We are looking for IC that meet the following conditions.

Please tell us the recommended products.

Vin=~12V

LED : 1ch and  1 LED

VF= 5V(max)

IC can set up the dimming timing by pulse from the outside.

(We want to light 1 mS out of 100 mS.)

IC can set up the IF from the outside.

(We want to set up 0mA~100mA while lighting.)

Does LM3409 meet the conditions?

Please let me know if there are other good products besides LM3409.

Best regards,

Takahiro Nishizawa

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SIMPLELINK-CC2640R2-SDK: CC2640R2 SDK compilation issue

September 3, 2018, 8:07 pm
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Part Number:SIMPLELINK-CC2640R2-SDK

Dear TI experts,

I am building a BLE application based on CC2640R2. My application is developed based on simple_peripheral_oad_onchip project (cc2640R2_sdk_1_40_00_45)  using IAR 8.11.3 . After adding application code to the project and tried to compile and link the application, I got below error message. Would you please kindly give me some hints on how to resolve the issue? Thanks

Error[Lp014]: cannot fit "Block ROSTK" (min size 0xcc2b, alignment 0x4) into any of the ranges <[0x00000050-0x0000cfff]> 

Best regards,

Peter

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UCD3138: [UCD3138]Questions of coefficient switching

September 3, 2018, 8:10 pm
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Part Number:UCD3138

Hi all,

How do i know what coefficients it sets when PSU is working if i enable multi coefficient function?

How do i know multi coefficients function is working when PSU is power on,i set servel banks for nonlinear mode but nothing cahnged,thanks.

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