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ArduCam_Max7456.h
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#ifndef ArduCam_Max7456_h
#define ArduCam_Max7456_h
/******* FROM DATASHEET *******/
#define MAX7456_SELECT 6//SS
#define MAX7456_VSYNC 2//INT0
#define NTSC 0
#define PAL 1
#define MAX7456_MODE_MASK_PAL 0x40 //PAL mask 01000000
#define MAX7456_CENTER_PAL 0x8
#define MAX7456_MODE_MASK_NTCS 0x00 //NTSC mask 00000000 ("|" will do nothing)
#define MAX7456_CENTER_NTSC 0x6
//MAX7456 reg read addresses
#define MAX7456_OSDBL_reg_read 0xec //black level
#define MAX7456_STAT_reg_read 0xa0 //0xa[X] Status
//MAX7456 reg write addresses
#define MAX7456_VM0_reg 0x00
#define MAX7456_VM1_reg 0x01
#define MAX7456_DMM_reg 0x04
#define MAX7456_DMAH_reg 0x05
#define MAX7456_DMAL_reg 0x06
#define MAX7456_DMDI_reg 0x07
#define MAX7456_OSDM_reg 0x0c //not used. Is to set mix
#define MAX7456_OSDBL_reg 0x6c //black level
//MAX7456 reg write addresses to recording NVM process
#define MAX7456_CMM_reg 0x08
#define MAX7456_CMAH_reg 0x09
#define MAX7456_CMAL_reg 0x0a
#define MAX7456_CMDI_reg 0x0b
//DMM commands
#define MAX7456_CLEAR_display 0x04
#define MAX7456_CLEAR_display_vert 0x06
#define MAX7456_INCREMENT_auto 0x03
#define MAX7456_SETBG_local 0x20 //00100000 force local BG to defined brightness level VM1[6:4]
#define MAX7456_END_string 0xff
//VM0 commands mixed with mode NTSC or PAL mode
#define MAX7456_ENABLE_display_vert 0x0c //mask with NTSC/PAL
#define MAX7456_RESET 0x02 //mask with NTSC/PAL
#define MAX7456_DISABLE_display 0x00 //mask with NTSC/PAL
//VM0 command modifiers
#define MAX7456_SYNC_autosync 0x10
#define MAX7456_SYNC_internal 0x30
#define MAX7456_SYNC_external 0x20
//VM1 command modifiers
#define MAX7456_WHITE_level_80 0x03
#define MAX7456_WHITE_level_90 0x02
#define MAX7456_WHITE_level_100 0x01
#define MAX7456_WHITE_level_120 0x00
#define NVM_ram_size 0x36
#define WRITE_nvr 0xa0
#define STATUS_reg_nvr_busy 0x20
//If PAL
#ifdef isPAL
#define MAX7456_screen_size 480 //16x30
#define MAX7456_screen_rows 0x10
#else
#define MAX7456_screen_size 390 //13x30
#define MAX7456_screen_rows 0x0D
#endif
//------------------ the OSD class -----------------------------------------------
class OSD: public BetterStream
{
public:
OSD(void);
void init(void);
void clear(void);
void plug(void);
void setPanel(uint8_t start_col, uint8_t start_row);
void openPanel(void);
void closePanel(void);
void control(uint8_t ctrl);
void detectMode(void);
void setMode(int mode);
void setBrightness();
void openSingle(uint8_t x, uint8_t y);
int getMode(void);
int getCenter(void);
virtual int available(void);
virtual int read(void);
virtual int peek(void);
virtual void flush(void);
virtual size_t write(uint8_t c);
void write_NVM(int font_count, uint8_t *character_bitmap);
using BetterStream::write;
private:
uint8_t start_col, start_row, col, row, video_mode, video_center;
};
#endif