WebSVN - Projects - Blame - Rev 404 - /C-OSD/trunk/max7456_software

Rev	Author	Line No.	Line
331	cascade	1	/****************************************************************************
		2	* Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje *
		3	* admiralcascade@gmail.com *
		4	* Project-URL: http://www.mylifesucks.de/oss/c-osd/ *
		5	* *
		6	* This program is free software; you can redistribute it and/or modify *
		7	* it under the terms of the GNU General Public License as published by *
		8	* the Free Software Foundation; either version 2 of the License. *
		9	* *
		10	* This program is distributed in the hope that it will be useful, *
		11	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
		12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
		13	* GNU General Public License for more details. *
		14	* *
		15	* You should have received a copy of the GNU General Public License *
		16	* along with this program; if not, write to the *
		17	* Free Software Foundation, Inc., *
		18	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
		19	****************************************************************************/
		20
		21	/* ##########################################################################
		22	* Software SPI to communicate with MAX7456
		23	* ##########################################################################*/
		24	#define MAX_CS_HIGH PORTA \|= (1 << PA1);
		25	#define MAX_CS_LOW PORTA &= ~(1 << PA1);
		26	#define MAX_SDIN_HIGH PORTA \|= (1 << PA2);
		27	#define MAX_SDIN_LOW PORTA &= ~(1 << PA2);
		28	#define MAX_SCLK_HIGH PORTA \|= (1 << PA3);
		29	#define MAX_SCLK_LOW PORTA &= ~(1 << PA3);
		30	#define MAX_RESET_HIGH PORTA \|= (1 << PA5);
		31	#define MAX_RESET_LOW PORTA &= ~(1 << PA5);
		32
		33
		34	/* ##########################################################################
		35	* MAX7456 SPI & Display stuff
		36	* ##########################################################################*/
		37
		38	/**
		39	* Send a byte through SPI
		40	*/
		41	void spi_send(uint8_t);
		42
		43	/**
		44	* Send <byte> to <address> of MAX7456
		45	*/
		46	void spi_send_byte(uint8_t, uint8_t);
		47
		48	/**
		49	* write a <character> to <address> of MAX7456 display memory
		50	*/
		51	void write_char(uint16_t, char);
		52
		53	/**
		54	* write a character <attribute> to <address> of MAX7456 display memory
		55	*/
		56	void write_char_att(uint16_t, char);
		57	/**
		58	* write a <character> at <x>/<y> to MAX7456 display memory
		59	*/
		60	void write_char_xy(uint8_t, uint8_t, char);
		61	/**
		62	* write a character <attribute> at <x>/<y> to MAX7456 display memory
		63	*/
		64	void write_char_att_xy(uint8_t, uint8_t, char attribute);
		65
		66	/**
404	cascade	67	* clear display memory
		68	* (also sets 8bit mode)
331	cascade	69	*/
		70	void clear(void);
		71
		72	/**
		73	* write an ascii <character> to <address> of MAX7456 display memory
		74	*/
		75	void write_ascii_char(uint16_t, char);
		76
		77	/**
		78	* write an ascii <string> at <x>/<y> to MAX7456 display memory
		79	*/
		80	void write_ascii_string(uint8_t, uint8_t, char*);
		81
		82	/**
346	cascade	83	* write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory
		84	*/
		85	void write_ascii_string_pgm(uint8_t, uint8_t, char*);
		86
		87	/**
379	cascade	88	* write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory
		89	*/
		90	void write_string_pgm_down(uint8_t, uint8_t, char*, uint8_t);
		91
		92	/**
349	cascade	93	* Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory
		94	* <num> represents the largest multiple of 10 that will still be displayable as
		95	* the first digit, so num = 10 will be 0-99 and so on
		96	* <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7
331	cascade	97	*/
349	cascade	98	void write_ndigit_number_u(uint8_t, uint8_t, uint16_t, int16_t, uint8_t);
331	cascade	99
		100	/**
349	cascade	101	* Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory
		102	* <num> represents the largest multiple of 10 that will still be displayable as
		103	* the first digit, so num = 10 will be 0-99 and so on
		104	* <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7
331	cascade	105	*/
349	cascade	106	void write_ndigit_number_s(uint8_t, uint8_t, int16_t, int16_t, uint8_t);
331	cascade	107
		108	/**
349	cascade	109	* Write only some digits of a unsigned <number> at <x>/<y> to MAX7456 display memory
		110	* as /10th of the value
		111	* <num> represents the largest multiple of 10 that will still be displayable as
		112	* the first digit, so num = 10 will be 0-99 and so on
		113	* <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 00.7 instead of .7
331	cascade	114	*/
349	cascade	115	void write_ndigit_number_u_10th(uint8_t, uint8_t, uint16_t, int16_t, uint8_t);
331	cascade	116
		117	/**
349	cascade	118	* Write only some digits of a signed <number> at <x>/<y> to MAX7456 display memory
		119	* as /10th of the value
		120	* <num> represents the largest multiple of 10 that will still be displayable as
		121	* the first digit, so num = 10 will be 0-99 and so on
		122	* <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 00.7 instead of .7
331	cascade	123	*/
349	cascade	124	void write_ndigit_number_s_10th(uint8_t, uint8_t, int16_t, int16_t, uint8_t);
331	cascade	125
		126	/**
		127	* write <seconds> as human readable time at <x>/<y> to MAX7456 display mem
		128	*/
		129	void write_time(uint8_t, uint8_t, uint16_t);
		130
		131	/**
		132	* for testing write all chars to screen
		133	*/
		134	void write_all_chars();
		135
		136	/**
		137	* let the MAX7456 learn a new character at <number>
		138	* with <data>.
		139	*/
		140	void learn_char(uint8_t, unsigned char*);

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(root)/C-OSD/trunk/max7456_software_spi.h - Rev 404