JapanDisplayInc / Mbed 2 deprecated MIP8f_FRDM_LineBuffer_sample

Line buffer mode. sammple code with MIP8F_SPI_Ver40

Dependencies:   MIP8F_SPI_Ver40 mbed

Dependents:   MIP8f_FRDM_TransferMode_sample MIP8f_FRDM_Animation_sample

Introduction

Line buffer mode sample with MIP8F_SPI_Ver40 Display some color and monochrome bitmap.

Other information , please refer to https://os.mbed.com/teams/JapanDisplayInc/code/MIP8f_FRDM_sample/

Usage

Copy Setting File and Image to micro SD-CARD. (Same setting File and bitmap of MIP8f_FRDM_sample.)

a) Download the following file corresponding to the target panel, and rename file identifier (.bin -> .zip), and unzip the file on micro SD Card's root directory.

b) Insert micro SD-CARD to FRDM-K64F. c) Upload binary file to FRDM-K64F.and push Reset Button.

Other information

refer to Usage on https://os.mbed.com/teams/JapanDisplayInc/code/MIP8f_FRDM_sample/

this Sample Code (.bin)

/media/uploads/JDI_Mbed_Team/mip8f_frdm_linebuffer_sample.k64f.bin

SDFileSystem/FATFileSystem/MemFileSystem.h

Committer:
JDI_Mbed_Team
Date:
2018-11-06
Revision:
13:855affe061f7
Parent:
0:33fe30a2b785

File content as of revision 13:855affe061f7:

/* mbed Microcontroller Library - MemFileSystem
 * Copyright (c) 2008, sford
 */


#ifndef MBED_MEMFILESYSTEM_H
#define MBED_MEMFILESYSTEM_H

#include "FATFileSystem.h"

namespace mbed
{

    class MemFileSystem : public FATFileSystem
    {
    public:
    
        // 2000 sectors, each 512 bytes (malloced as required)
        char *sectors[2000];
    
        MemFileSystem(const char* name) : FATFileSystem(name) {
            memset(sectors, 0, sizeof(sectors));
        }
    
        virtual ~MemFileSystem() {
            for(int i = 0; i < 2000; i++) {
                if(sectors[i]) {
                    free(sectors[i]);
                }
            }
        }
    
        // read a sector in to the buffer, return 0 if ok
        virtual int disk_read(char *buffer, int sector) {
            if(sectors[sector] == 0) {
                // nothing allocated means sector is empty
                memset(buffer, 0, 512);
            } else {
                memcpy(buffer, sectors[sector], 512);
            }
            return 0;
        }
    
        // write a sector from the buffer, return 0 if ok
        virtual int disk_write(const char *buffer, int sector) {
            // if buffer is zero deallocate sector
            char zero[512];
            memset(zero, 0, 512);
            if(memcmp(zero, buffer, 512)==0) {
                if(sectors[sector] != 0) {
                    free(sectors[sector]);
                    sectors[sector] = 0;
                }
                return 0;
            }
            // else allocate a sector if needed, and write
            if(sectors[sector] == 0) {
                char *sec = (char*)malloc(512);
                if(sec==0) {
                    return 1; // out of memory
                }
                sectors[sector] = sec;
            }
            memcpy(sectors[sector], buffer, 512);
            return 0;
        }
    
        // return the number of sectors
        virtual int disk_sectors() {
            return sizeof(sectors)/sizeof(sectors[0]);
        }
    
    };

}

#endif