LCD shows nothing after debugging Sample BLE peripheral project in CC2650DK

Nithin Nagaraj

Other Parts Discussed in Thread: CC2640, CC2650

Hello,

I am new to the BLE Concept,

1) I am trying to run a project example SimpleBLE peripheral in CCS v6. It runs well without any errors, but it does not show anything on LCD Screen. I also tried with IAR IDE even that shows "Failed to Load extra image", not sure what is wrong.

2) Also when i connect my CC2650DK and open the Btool v1.41 it shows the following error,

<Warning> - 01:50:54.611
GAP Device Initialization Timeout
Device May Not Function Properly

i am sure i have checked both app file and stack file were active or not.

I am not sure how to proceed with. I am trying to send and recieve a simple .txt file. Please help me out.

Thanks

over 10 years ago

0 YiKai Chen over 10 years ago

Guru 735685 points

If you download prebuild CC2640_SmartRF-7ID_SimpleBLEPeripheral.hex (under \Accessories\HexFiles) to your CC2650DK, can you see display output on SMartRF06EB?

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Hello,

I even checked with that, but still not working. I just want to send or receive a .txt file which has to be displayed on LCD Screen. But the inbuilt project example in code composer studio v6 is not working. Please help out.

Thanks

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

Can you take a picture of your SmartRF06EB+CC2640EM?

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Hello,

I think you asked me to send the pic of cc2650DK, n here it is. Please help me out soon, i am stuck with this trying from two days. I cannot figure out the mistake or error in the example program.

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

Everything on CC2650DK looks good. Try to download the following PER test hex to your CC2650DK and see if you can have LCD output.

per_test_v1_1.hex

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Should i run it on CCS v6 or IAR Embedded workbench? If i have to run it CCS v6, then should i run both App file and Stack file?

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

You should use Flash Programmer 2 to download it to CC2650DK.

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Can you walk me through the steps to be followed? Because it is not clear how to do it in user manual. Please do the needful
Thanks

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

1. Download and install Flash Programmer 2 from FLASH-PROGRAMMER-2.
2. Connect CC2650DK to your PC by USB.
3. Press "Refresh" button on Flash Programmer 2 and you should see your CC2650 shows on "Connected devices:" window.
4. Press "Browse" button in Main tab to select per_test_v1_1.hex.
5. Press play button to start download it to your CC2650DK.
6. After download successfully, you can restart your CC2650DK to see if there is any output on LCD.

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Still no display!!! May i request you to help me from the starting in steps that how to execute the SimpleBLE peripheral example project in ccsv6.
What i did was 1)import the project and run it, It runs without any errors and even gets configured but no output or display in LCD.
2) I did the same in IAR embedded workbench, but it did show a following error.
<Warning> - 01:50:54.611
GAP Device Initialization Timeout
Device May Not Function Properly
3) I did download the .hex file from flash programmer and restarted it, still no output.

Please can you tell me steps that had to be followed to get the output. I just need to send a simple .txt file.

Thanks

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

Had you ever see LCD output on your CC2650DK when you received it and turn on power?

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Yeah i displayed my LCD programming according to me. I just wanted to display some parameters and i succeeded in that using lcdSmartRF06.c file in the examples.
But the main problem is if i run the SimpleBLE peripheral app and stack files i am getting nothing. I understand that there is nothing in main.c file to display in LCD, i made changes to it so that it displays something. but it is not happening.
At least i want to know how that project example is working. Because it is the same case with all the BLE examples i tried running the Heart rate, Time App, Ble observer, broadcater and Central app. i think it is doing something, but not able to notice any.
For example if i run a example on BLE broadcaster then according to the code it should transmit/broadcast the data ( i think so).
My Question is how does these examples actually run?? and how can i understand or notice that it did the same as the program has asked the mcu to do.
I request a complete guide/ steps that can be followed to execute the program. I went through the technical documents, but its not helping me.
please help me out.
Thanks

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

Can I know you use BLE-STACK-V2 or BLE-STACK-V2.1?

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Its BLE-STACK-V2.1

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

Do you follow the steps in steps in 2.5 Setting up the Development Environment in SWRU393_CC2640_BLE_Software_Developer's_Guide.pdf?

0 Nithin Nagaraj over 10 years ago in reply to YiKai Chen

Intellectual 610 points

Yeah Spot on, Everything was followed properly. I tried it with both ccs and IAR, But i am not understanding what it is doing? I am no trying to do it with a new app file which was shown in one of the tutorial.

0 YiKai Chen over 10 years ago in reply to Nithin Nagaraj

Guru 735685 points

If you had ever made it work, I have no idea why it doesn't work suddenly. Try to uninstall BLE stack, reinstall it and try again. By the way, if you have another CC2650DK, does it have the same problem?

0 Christin Lee over 10 years ago in reply to Nithin Nagaraj

TI__Guru 56215 points

What changes did you make in main? for SimpleBLEPeripheral, after main, it jumps to SimpleBLEPeripheral_taskFxn and first call
// Initialize application
SimpleBLEPeripheral_init();

In SimpleBLEPeripheral_init(); Board_openLCD(); is called and LCD is initialized if it's not SENSORTAG_HW and TI_DRIVERS_LCD_INCLUDED is defined.

After that, you will be able to write stuff by using
LCD_WRITE_STRING or LCD_WRITE_STRING_VALUE

0 Nithin Nagaraj over 9 years ago in reply to Christin Lee

Intellectual 610 points

Hello,
Thanks for the reply. Yeah i tried with the things which you have suggested above. I am ending up where i started. May i request you to guide me from the beginning on how i can actually use the example project on BLE to send or receive a simple .txt file. So that the notifications of Bluetooth initializing, Discovering device , found device, pairing and not paired notifications are shown on LCD screen of CC2650DK.
I am completely new to this BLE concept, i am working on a project so please help me out.

Thanks

Regards
Nithin

0 YiKai Chen over 9 years ago in reply to Nithin Nagaraj

Guru 735685 points

Have you been able to see output on LCD now? By the way, there is no BLE example to show you how to send txt file. I would suggest you to read SWRU393_CC2640_BLE_Software_Developer's_Guide.pdf and start playing with SimpleBLECentral and SimpleBLEPeripheral to get familiar to BLE stack and protocol first.

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LCD shows nothing after debugging Sample BLE peripheral project in CC2650DK