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Problem porting emWin for a new graphic controller

Dear Sirs

Has anyone ever ported a new TFT display for emWin in mdk-5 professional?
I am following the emWin 5 user guide with Graphics->Core selected under Manage Run-Time Environment.
Under Display, Interface Template has been chosen for a new low level TFT driver.

In mdk 5 workspace, the LCD_X_Serial.c included as a HAL layer for SPI access.

A new, customerised LCDConf.c is there.

The same driver is working I know, because it does successfully initialize the display, clear screen OK,
turn on pixel OK, ...

The problem is that, whenever GUI_Init() is stepped over, the mcu goes into hardware fault ISR.

The most simple program is attempted.

#include "GUI.h"

void main(void)
{ GUI_Init();
}

I am using a Freescale MK64F as a prototype platform.

Any help or suggestion will be appreciated.

KW John

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