Hi,
We have a long time bootloader works fine for KL25. Now we revise it for KL02.
The same program code is used, with CodeWarrior 10.6 and ProcessorExpert component.
We first tried on FRDM-KL02 (MKL02Z32VFM4), and also works fine.
But after we port it to custom target board (MKL02Z32VFG4), using MultiLink to debug in CW,
The function FLASH_OnOperationComplete() never reach, and it just keep looping and wait for complete
"while(OpStatus != TRUE)" as below code.
With CW debug, the program flash is correctly downloaded.
Please check and comment what might be the reason for this? Or what kind data/action can we check/make?
Next is the part of code:
// in event.c, hook for complete and error
void FLASH_OnOperationComplete(LDD_TUserData *UserDataPtr)
{
/* Write your code here ... */
uint8_t *OpStatus = (LDD_TUserData*) UserDataPtr;
*OpStatus = TRUE;
}
void FLASH_OnError(LDD_TUserData *UserDataPtr)
{
/* Write your code here ... */
uint8_t *OpStatus = (LDD_TUserData*) UserDataPtr; // Bj, 140605
*OpStatus = 8;
}
// User program file, function to perform flash
bool WriteFlash(LDD_FLASH_TAddress FromAddress, LDD_TData* DataPtr, LDD_FLASH_TDataSize Size)
{
LDD_TError Error;
//*OpStatus = FALSE;
LDD_TDeviceData *FlashDevData;
uint8_t OpStatus=FALSE;
FlashDevData = IntFlash(&OpStatus);
Error = FLASH_Write(FlashDevData, DataPtr, FromAddress, Size);
if (Error) { // no function call error found
return FALSE;
}
while(OpStatus != TRUE) // as flash never complete, so it keeps looping in this while loop!!
{/* Wait while operation done , Bj, 0605*/
if (OpStatus == 8)
{
printf ("Wf8"); // on error flag, set in event.c
break;
}
}
return TRUE;
}
// Reserve 1KB size of data on top of BootLoader as Signature
// main program will try to write a version number to the top of Bootloader for the 1st time (empty sector)
.. ..
if (BootVer1.VerBoot==0xff) { // check empty flag for the very first one
BootVer1.VerBoot = 3;
WriteFlash (BL_TOP, &BootVer1.VerBoot, 1); // write a new flag, << this is where the program stuck!!
}
.. ..
// We also tried to add checking in the loop
FLASH_Main(FlashDevData);
OpStatus=FLASH_GetOperationStatus (FlashDevData);
// but OpStatus is always 4 (LDD_FLASH_START)
// 2015/3/29 add:
// Before write Bootloader program, we developed AP program on this target board, and it works fine.
// We developed under CW10.6, using Multilink to download and debug, and running OK.
// The H/W is simple, checked, and nothing wrong can be found.
// We tested two boards, and both have this Flashing problem.
// We tried to revise the sample FLASH program of CW (for KL05), to KL02, only to found Erase is failed.
// Could this be a chip issue? How to identify it?
// Could the flash be locked? But CW downloading is working fine.
