Running the program

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 11:44:57 MST 2015

Hello LPCXpresso users,

I just start using the LPCXpresso ( Version LPCXpresso_7.4.0_229) IDE/compiler for my LPC1768 board.

Using the LPC-Link 2 I'm able to load the program and debug it.

The program is running fine.

However I'd like to run the program after disconnecting LPC-Link 2

(because the second I disconnect it, the program stops running).

Can someone explain please what steps I need to make to achieve this.

Thank you in advance. :)

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Mon May 04 14:50:09 MST 2015

Quote: Elianco_ES
Is there something special about this Port0_6 pin ?

No

Quote: Elianco_ES
Data sheet says it can be used as GPIO.

And did you switch to GPIO :quest:

User Manual:

The direction control bit in FIO0DIR register is effective only when the GPIO function is selected for a pin. For other functions, the direction is controlled automatically.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Mon May 04 13:36:39 MST 2015
Hello R2D2,

Thanks for your advice.

My hardware engineer fixed the RESET control pin and now the program runs after disconnecting LPC Link2.

Now I got another problem.

When I program Port0_6 (pin79) as a digital out port, it doesn't work, it always stays high.

The other pins Port0_7, Port0_8, Port0_9 are working OK.

I used this Port0_6 on Mbed NXP LPC1768 board and it worked just fine. (I use these pins for SPI interface with external Flash

memory).

Is there something special about this Port0_6 pin ?

Data sheet says it can be used as GPIO.

Regards,

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 13:42:22 MST 2015

Quote: Elianco_ES
I'll have to wait till my hardware engineer fixes the ISP or Reset pins.

Meanwhile you could test a simple blinky project...

Just to ensure that your software isn't including a strange runtime error :O

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 13:37:02 MST 2015

R2D2,

Thanks for the post.

You are right. It looks like it's the hardware problem.

I'll have to wait till my hardware engineer fixes the ISP or Reset pins.

Best Regards,

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 13:24:56 MST 2015

Quote: Elianco_ES
Here is what I did so far...

I click on "Debug" button and wait until the program is fully loaded.

Then I press on "Stop" button (I don't need to single step it)

and the program starts running with all the its bells and whistles.

However, after I disconnect LPC Link2, the program stops.

LPCXpresso_User_Guide.pdf:

Quote:

4.4 Debugging a project
....
When debug is started, the program is automatically downloaded to the target and is programmed into FLASH memory, a default breakpoint is set on the first instruction in main(), the application is started (by simulating a processor reset), and code is executed until the default breakpoint is hit.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 13:11:55 MST 2015

   R2D2,

   You mentioned "At least if you've flashed a working program..."

   How do I flash a working program?

   Maybe I missed this step.

   Here is what I did so far...

I click on "Debug" button and wait until the program is fully loaded.

Then I press on "Stop" button (I don't need to single step it)

   and the program starts running with all the its bells and whistles.

However, after I disconnect LPC Link2, the program stops.

Regards,

   Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 13:07:06 MST 2015

Quote: Elianco_ES
So once this problem is resolved the program should run without the LPC Link2, right ?

Of course :)

At least if you've flashed a working program..

Therefore I would suggest to flash a very simple project (blinking LED) :)

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 12:47:08 MST 2015

R2D2,

Thanks for your advice.

I'll ask my hardware engineer to check the ISP and Reset pins.

So once this problem is resolved the program should run without the LPC Link2 , right ?

Regards,

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 12:25:57 MST 2015
Then it's time to check your hardware :)

Especially ISP and Reset pins...

What is your chip doing? Is it in ISP?

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 12:21:17 MST 2015

R2D2,

thanks for the link.

After reading it I'm sure that I'm not using semihosting.

Regards,

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 12:14:19 MST 2015

Quote: Elianco_ES
What is semihosting?

http://www.lpcware.com/content/faq/lpcxpresso/semihosting

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Elianco_ES on Wed Apr 29 12:10:04 MST 2015

Hello R2D2,

Thanks for your quick reply.

What is semihosting?

I don't think that my board has a problem since the program is running fine.

The LCD display, the keypad , the uart port and I2c port all are functioning properly

only while the LPC Link 2 is connected to the board.

Regards,

Elik.

lpcware · ‎06-15-2016

Content originally posted in LPCWare by R2D2 on Wed Apr 29 11:54:15 MST 2015
Are you using semihosting?

Or is it a problem with your board?