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Problem to Open SPP Port when firmware run from 0x20000

Ronald Lilleg
Intellectual 320 points
Other Parts Discussed in Thread: TM4C123GH6PM, TM4C123GH6PGE

I get an Error on open an Bluetooth SPP Port when the Firmware not starts from Flash adress 0x00.

For bootloader I must run the Firmware from higher adress.

And then comes an Hard Fault:

"UNDEFINSTR"

"FORCED"

"BKPT"

I found out, that the Error causes in the Funktion:

"BSC_SearchGenericListEntry".

In the assamply code I see it causes in the follow lines:

MOV r2, r7

MOV r0, r8

BL.W 0x00023960

cmp r0, #0x00

Before the Error comes I call the function "SPP_Open_Remote_Port".

This function returns OK.

But the Event "etPort_Open_Indication" never comes.

There comes the HardFault-Handler before.

The error occures EVERY TIME, when I run the firmware from flash-Adress 0x20000.

I use an TM4C123GH6PM Controller

And an CC256XB BT-Chip.

And an Keil Compiler.

 

Thanks

Ronald

  • 0
    TI__Guru* 85400 points
    Hi,

    Can you please clarify a bit more about "firmware run from 0x20000" so I can try on my setup?

    Regards,
    Gigi Joseph.
  • 0 in reply to Joseph Gigi
    Intellectual 320 points

    I work with keil Compiler.

    There I can put the area from the Firmware to 0x020000.

    I go to "Options for Target" There are IROM1.

    I put the Start to 0x20000 and Size to 0x20000.

    Under "Linker" I set the flag for "Use Memory Layout from Target Dialog".

  • 0 in reply to Ronald Lilleg
    TI__Guru* 85400 points

    Hi,

    Can you confirm the below settings?



    I did not seem to have an issue with the above (TM4C123GH6PGE + CC2564B running "SPPDemo" app):

    ***

    OpenStack().
    HCI_VS_InitializeAfterHCIReset
    VS_Update_UART_Baud_Rate success.
    HCI_VS_InitializeAfterHCIReset Success
    Bluetooth Stack ID: 1
    Device Chipset: 4.1
    BD_ADDR: 0x0017e9505f95

    ******************************************************************
    * Command Options: Server, Client, Help *
    ******************************************************************

    Choose Mode>Client

    ******************************************************************
    * Command Options: Inquiry, DisplayInquiryList, Pair, *
    * EndPairing, PINCodeResponse, PassKeyResponse, *
    * UserConfirmationResponse, *
    * SetDiscoverabilityMode, SetConnectabilityMode,*
    * SetPairabilityMode, *
    * ChangeSimplePairingParameters, *
    * GetLocalAddress, GetLocalName, SetLocalName, *
    * GetClassOfDevice, SetClassOfDevice, *
    * GetRemoteName, SniffMode, ExitSniffMode, *
    * Open, Close, Read, Write, *
    * GetConfigParams, SetConfigParams, *
    * GetQueueParams, SetQueueParams, *
    * Loopback, DisplayRawModeData, *
    * AutomaticReadMode, SetBaudRate, Send *
    * Help, Quit *
    ******************************************************************

    Client>Inquiry

    Client>
    Inquiry Entry: 0xc0eefb312cbd.

    Client>
    Result: 1,0xc0eefb312cbd.

    Client>Open 1 1

    SPP_Open_Remote_Port success.

    Client>
    SPP Open Confirmation, ID: 0x0001, Status 0x0002.

    ***

    Regards,
    Gigi Joseph.

  • 0 in reply to Joseph Gigi
    Intellectual 320 points

    Thanks, it was my fault.

  • 0 in reply to Ronald Lilleg
    TI__Guru* 85400 points
    Hi,

    Thanks for the update, I will mark this as closed.
    For the benefit of others, can you tell us what the problem was?

    Regards,
    Gigi Joseph.
  • 0 in reply to Joseph Gigi
    Intellectual 320 points

    I use the space from 0x30000 as EEPROM-Storage and overwrite the stack with the BT-Adress from the found Bluetooth devices.

    This was the reason, why I can not open the port after found devices.