LPC11C14 + LPCOpen_v2_00a = HardFault_Handler()-SOLVED

[lpcware]

Content originally posted in LPCWare by motz on Sun Oct 05 22:04:35 MST 2014
Hello,

I am new in lpc and have a big problem.
I am using LPCXpresso_7.4.0 together with the newest lpcopen_v2_00a_lpcexpresso_nxp_lpcexpresso_11c24. I try to debug on a LPC11C14.
I am able to successfully build any example project but no matter on which project I try to debug, I always end up in the HardFault_Handler().
I do not even reach the main loop.
Of course I changed the project properties (MCU settings) to target LPC11C14/301.
My first question would be: Is the lpcopen_v2_00a_lpcexpresso_nxp_lpcexpresso_11c24 really compatible with the LPC11C14?
Right now I try to debug the uart example. Here the vectpc:

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Fault PC = 0x000002C8
              = Board_Init + 8 in section .text
              = File: ../src/board.c  Line: 137

Fault status registers:
IPSR       = 0x1000003: 3  (HardFault)
CFSR      = 00000000 (Configurable Fault Status Register)
HFSR      = 00000000 (Hard Fault Status Register)
DFSR      = 00000000 (Debug Fault Status Register)
MMAR     = 00000000 [INVALID] (MemManage Fault Address Register)
BFAR      = 00000000 [INVALID] (Bus Fault Address Register)
AFSR      = 00000000 (Auxiliary Fault Status Register)

Stacked registers:
R0          = 0000085f
R1          = 00000002
R2          = 40048000
R3          = 00000080
R12        = a712564b
LR          = 00000377
PC         = 000002c8
PSR       = 01000200
SP         = 10001fb8
------------------------------------------------------------------------------------------------------------------

I have really no idea what I do wrong. Could somebody help me?  :~

[lpcware]

Content originally posted in LPCWare by motz on Tue Oct 07 01:22:42 MST 2014
Good morning!

Thanks a lot for all the answers. I was finally able to debug every project :) It was really the clock.
My next challenge is SPI :)

[lpcware]

Content originally posted in LPCWare by LabRat on Mon Oct 06 09:35:10 MST 2014

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Quote: wellsk
Hmm, we should really alter that chip layer function to use the board layer's const osc rate to generate the correct multiplier at run-time :(

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Last not least: set FREQRANGE in SYSOSCCTRL (there's no library function in LPCOpen) ...

[lpcware]

Content originally posted in LPCWare by wellsk on Mon Oct 06 09:24:25 MST 2014

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Quote:
Either you use a 12MHz crystal (as LPCXpresso board) or you change your board library...

ATM you are trying to run your board with 100MHz...

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Sorry, didn't see this until after the post. You pretty much nailed it!

[lpcware]

Content originally posted in LPCWare by wellsk on Mon Oct 06 09:23:00 MST 2014
Default board layer code for the 11c24 uses a 12Mhz crystal setting. You will have to edit your board layer OscRateIn constant to update the crystal rate with the correct setting.
This rate is used at run-time as a time basis for a number of clock related functions.

In file board.c in the board library project...

/* System oscillator rate and clock rate on the CLKIN pin */
const uint32_t OscRateIn = 12000000; // <<< Replace me with 25000000
const uint32_t ExtRateIn = 0;

You will also have to update the chip layer code to reduce the PLL multiplier.

In file sysinit_11xx.c in the chip library project...

/* Setup PLL for main oscillator rate (FCLKIN = 12MHz) * 4 = 48MHz
   MSEL = 3 (this is pre-decremented), PSEL = 1 (for P = 2)
   FCLKOUT = FCLKIN * (MSEL + 1) = 12MHz * 4 = 48MHz
   FCCO = FCLKOUT * 2 * P = 48MHz * 2 * 2 = 192MHz (within FCCO range) */
Chip_Clock_SetupSystemPLL(3, 1); // Change me to (1, 1) for 2x25MHz = 50Mhz

Hmm, we should really alter that chip layer function to use the board layer's const osc rate to generate the correct multiplier at run-time
Maybe something like:

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Quote:
Chip_Clock_SetupSystemPLL((50000000 / OscRateIn), 1);

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[lpcware]

Content originally posted in LPCWare by motz on Mon Oct 06 05:05:11 MST 2014
So I have to change SystemSetupClocking() only?
How do I config the clock paramters to use my 25MHz external oscillator?
Why do I try to run it with 100MHz?

[lpcware]

Content originally posted in LPCWare by LabRat on Mon Oct 06 02:08:47 MST 2014

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Quote: motz
I also use an external 25MHz

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So it's a hardware problem  :exmark:

Either you use a 12MHz crystal (as LPCXpresso board) or you change your board library...

ATM you are trying to run your board with 100MHz...

[lpcware]

Content originally posted in LPCWare by motz on Mon Oct 06 01:59:07 MST 2014
Hello again!

Thank you for your answer. I was able to start from ResetISR(). I can step to SystemInit()->Board_SystemInit()->SystemSetupMuxing() and everything is ok.
But when I want to enter  __main() I end up in the HardFault_Handler().
I read about the muxing table. I did not change anything on the blinky project neither on the board_lib. Could this be the reason? I also use an external 25MHz
oscillator on XTALIN.

[lpcware]

Content originally posted in LPCWare by lpcxpresso-support on Mon Oct 06 01:03:37 MST 2014
I suggest that you try debugging from reset and the single step through to see what is actually triggering the hard fault.

http://www.lpcware.com/content/faq/lpcxpresso/debug-from-reset

Alternatively, from your hard fault report it looks like something in the Board_Init() function is triggering the hard fault, so set a breakpoint there, and then single step through.

You might also want to consult this information on porting LPCOpen board libraries…

http://www.lpcware.com/content/faq/how-do-i-port-lpcopen-new-baord

Regards,
LPCXpresso Support

[lpcware]

Content originally posted in LPCWare by motz on Mon Oct 06 00:51:21 MST 2014
I meant to say that the connection is fine.
You are right. It is SWD of course. I am usinge the LPC-Link (HID).

[lpcware]

Content originally posted in LPCWare by LabRat on Mon Oct 06 00:34:12 MST 2014

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Quote: motz
I tested the hardware and the debug connection and everything is fine. Still have the same problem :(

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:quest:

So what's fine then ?

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Quote: motz
Perhaps it is also important to mention that I use the JTAG interface of the LPCxpresso 11C24 eval board to debug my 11C14. Do I have to change settings to use it?

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That's  SWD  :O

I'm quite sure that you've a problem with your 'fine' board or LPC-Link connection... 

[lpcware]

Content originally posted in LPCWare by motz on Mon Oct 06 00:30:56 MST 2014
Hello LabRat!

Thank you very much for your reply.
I tested the hardware and the debug connection and everything is fine. Still have the same problem :(
I tried to debug blinky but still jump right into the HardFault_Handler().
Perhaps it is also important to mention that I use the JTAG interface of the LPCxpresso 11C24 eval board to
debug my 11C14. Do I have to change settings to use it?

[lpcware]

Content originally posted in LPCWare by LabRat on Sun Oct 05 22:56:09 MST 2014

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Quote: motz
My first question would be: Is the lpcopen_v2_00a_lpcexpresso_nxp_lpcexpresso_11c24 really compatible with the LPC11C14?

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I don't have problems with my LPC11C14 here...

So first thing to check is your LPC11C14 board hardware and  debug connection  :)

Would suggest to start with nxp_lpcxpresso_11c24_periph_blinky and of course control your board library...

See also: http://www.lpcware.com/content/faq/lpcxpresso/debugging-hard-fault