[SOLVED] embOS + embUSB-Device and Cortex M3 (LPC1768) is working GOOD!...

Hi, I am beginner. I`v downloaded SES 4.12. I have a trial licence.

I`v compiled "SeggerEval_emPower_emUSBD_Audio_SES_180424" example good. This is Cortex-M4 controller.

But I create new project with LPC1768 (Cortex-M3). I`v tried to compile for LPC1768 controller and I have received any errors :

undefined reference to `OS_InitKern_STD'
undefined reference to `OS_InitHW'
undefined reference to `OS_CreateTask_DP'
...

As I understood the difference in #define OS_CPU_HAS_VFP - (Floating Point)

Can you recommend me anything?

---------------------------- The problem has resolved with Cortex-M3 (LPC 1768) ! ---------------------------------------

I install the ESPRO package.

I have used the RTOS.h from ......\SEGGER Embedded Studio\v3\packages\ESPRO\OS\Inc

I have used the libraries from .....\SEGGER Embedded Studio\v3\packages\ESPRO\OS\Lib\:
libos_v7m_t_le_dp.a - debug
libos_v7m_t_le_r.a - release

I have compiled my project normal.

Embedded Studio is really good idea! Now will try USB-HID attached...

Thank you for attention!

Hi Michael!

Thank you for your answer.

I have launched next project with emOS normal.

But I meet a problem with emUSB (on LPC1768) . I have spend two days with situation below:

while ((USBD_GetState() & (USB_STAT_CONFIGURED | USB_STAT_SUSPENDED)) != USB_STAT_CONFIGURED) 
{      
BSP_ToggleLED(0);      
USB_OS_Delay(50);    
}

When I turn on controller after USB-Start() USBD_GetState() returned 0x10 (=USB_STAT_ATTACHED)

After 2-3 seconds USBD_GetState() returned 0x11 (=USB_STAT_ATTACHED&USB_STAT_SUSPENDED)

When I connected USB cabel the USBD_GetState() returned also 0x11.

This occured with examples : USB_HID_Keyboard.c , USB_CDC_Echo.c , USB_HID_Mouse.c ...

USBLyzer and Control Panel Windows did not show any new device...

I forget to add the USB log:
0:000 MainTask - USBD_Start
0:000 MainTask - *** Warning *** Bus RESET should not occur in unattached state!

When I connect USB cabel I step here

void USB_IRQHandler(void){  
  OS_EnterInterrupt();


  if (_pfUSB_ISRHandler)  {    
    _pfUSB_ISRHandler();   // here step occured
  }  
  OS_LeaveInterrupt();
}

I suppose that maybe:
1. I have downloaded at first emPower example with MK66 (HS USB) and changed it to LPC1768(FS USB).
2. I am disturbed about USB frequency settings.

Do you recommend me some example for like LPC1768 controller with emOS and emUSB-Device? I searched it at forum and downloaded area but I not found anything.

Thank all!

I write you when it resolved.

Yes - the problem was resolved during 3 days!

Bus RESET should not occur in unattached state! - This is important message that i get on any examples permanently with my LPC1768 board.

This board is from old receipt printer. This is not evaluation board.

And USB D+ must be pull-up to 3.3V by 1.5K resistor. This is assigned to Host that the Device have FULL Speed Rate.

I.E. this was not software problem - this was the hardware mistake.

Thank all!

I 'v tried to compile the USB_HID_Keyboard.c example from ...SEGGER\SEGGER Embedded Studio\v3\packages\ESPRO\USBD\Application

and Release Version is working good (symbols is sended normal to PC to Text Editor), but in Debug version its does not send to PC.

In Debug Mode by JLink debugger the controller stop here:

while ((USBD_GetState() & (USB_STAT_CONFIGURED | USB_STAT_SUSPENDED)) != USB_STAT_CONFIGURED) 
{
      BSP_ToggleLED(0);
      USB_OS_Delay(50);
}
// USB_STAT_CONFIGURED is not occures

As I have understood the controller run to OS_Error(OS_STATUS ErrCode) with OS_ERR_SYS_STACK and hang here :

void OS_Error(OS_STATUS ErrCode) 
{
  OS_EnterRegion();  // Avoid further task switches
  OS_DICnt = 0u;     // Allow interrupts so we can communicate with embOSView
  OS_EI();
  OS_Status = ErrCode;
  while (OS_Status) { // !!!!!!!   here
    // Endless loop may be left by setting OS_Status to 0
  }
}

I suppose "OS_LIBMODE_DP" needs lib not libusbd_v7m_t_le_d.a but libusbd_v7m_t_le_dp.a ?

#if DEBUG
  #define OS_LIBMODE_DP
#else
  #define OS_LIBMODE_R
  #define OS_VIEW_IFSELECT  OS_VIEW_DISABLED  // embOSView communication is disabled per default in release configuration
#endif

Or maybe you recommend me any something?

Thank Martin!

static OS_STACKPTR int Stack0[768];
I change the 768 value to my controller max 6xxx (LPC1768) but it doesn't resolve my problem.

Well, I will teach embOS carefully....

Thank you very much Martin!

That is OK!

My USB-HID project is working fine in Debug mode too!

I will upload fully project with LPC 1768 on Embedded Studio to github.com if you don't mind?

https://github.com/PavelDorofeev/…Embedded-Studio