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Direct Drive LCD Design Guide

4.1.3 LCDInit

Direct Driver Initialization.

Format

LCDErrorType LCDInit(void);

Parameters

none

Return Values

0 if successful, non-zero if failure.

Properties

Prototyped in file ”DirectLCD.h”

Implemented in file “DirectLCD_SBF.c” for H8S family or “DirectLCD_XBCFT.c” for H8SX family.

Description

This function is used to initialize the hardware necessary for the Direct Drive LCD to execute. This function

uses the configuration macros to set up the TPU and ExDMAC peripherals to transfer data from the frame

RAM to the LCD panel. After this function successfully executes the transfer of data to the panel by

ExDMAC will start and interrupts will be generated on every line to service the ExDMAC.

Example

{

LCDErrorType error = LCDInit();

if (error != 0) …

}

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