EFM32_SegmentLCD - This is a driver for the segment LCD found on the…

Silicon Labs » Code » EFM32_SegmentLCD

This is a driver for the segment LCD found on the Silicon Labs EF32 Giant, Leopard and Wonder Gecko platforms. NOTE: This driver will not work with other platforms, because it contains EFM32-specific code.

Dependents: EFM32 RDA5807M RDS Radio EMF32-Segment-Touch-Demo EMF32_ShowKey blinky_EFM32_Giant ... more

Information

All examples in this repo are considered EXPERIMENTAL QUALITY, meaning this code has been created as one-off proof-of-concept and is suitable as a demonstration for experimental purposes only. This code will not be regularly maintained by Silicon Labs and there is no guarantee that these projects will work across all environments, SDK versions and hardware.

/media/uploads/stevew817/screenshot_2015-03-17_11.17.52.png

segmentlcd.c@6:114aa75da77b, 2015-05-04 (annotated)

Committer:: stevew817
Date:: Mon May 04 20:40:26 2015 +0000
Revision:: 6:114aa75da77b
Parent:: 0:559902e88130

Add pin defines for WG and LG

Who changed what in which revision?

User	Revision	Line number	New contents of line
Steven Cooreman	0:559902e88130	1	/************************************************************************//
Steven Cooreman	0:559902e88130	2	* @file
Steven Cooreman	0:559902e88130	3	* @brief EFM32 Segment LCD Display driver
Steven Cooreman	0:559902e88130	4	* @version 3.20.9
Steven Cooreman	0:559902e88130	5	******************************************************************************
Steven Cooreman	0:559902e88130	6	* @section License
Steven Cooreman	0:559902e88130	7	* <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
Steven Cooreman	0:559902e88130	8	*******************************************************************************
Steven Cooreman	0:559902e88130	9	*
Steven Cooreman	0:559902e88130	10	* This file is licensensed under the Silabs License Agreement. See the file
Steven Cooreman	0:559902e88130	11	* "Silabs_License_Agreement.txt" for details. Before using this software for
Steven Cooreman	0:559902e88130	12	* any purpose, you must agree to the terms of that agreement.
Steven Cooreman	0:559902e88130	13	*
Steven Cooreman	0:559902e88130	14	******************************************************************************/
Steven Cooreman	0:559902e88130	15
Steven Cooreman	0:559902e88130	16	#include <stdio.h>
Steven Cooreman	0:559902e88130	17	#include <string.h>
Steven Cooreman	0:559902e88130	18	#include <stdlib.h>
Steven Cooreman	0:559902e88130	19	#include <stdbool.h>
Steven Cooreman	0:559902e88130	20	#include "em_device.h"
Steven Cooreman	0:559902e88130	21	#include "em_cmu.h"
Steven Cooreman	0:559902e88130	22	#include "em_gpio.h"
Steven Cooreman	0:559902e88130	23
Steven Cooreman	0:559902e88130	24	#include "device_peripherals.h"
Steven Cooreman	0:559902e88130	25
Steven Cooreman	0:559902e88130	26	#include "segmentlcd.h"
Steven Cooreman	0:559902e88130	27
Steven Cooreman	0:559902e88130	28	/************************************************************************//
Steven Cooreman	0:559902e88130	29	* @brief
Steven Cooreman	0:559902e88130	30	* Defines each text symbol's segment in terms of COM and BIT numbers,
Steven Cooreman	0:559902e88130	31	* in a way that we can enumerate each bit for each text segment in the
Steven Cooreman	0:559902e88130	32	* following bit pattern:
Steven Cooreman	0:559902e88130	33	* @verbatim
Steven Cooreman	0:559902e88130	34	* -------0------
Steven Cooreman	0:559902e88130	35	*
Steven Cooreman	0:559902e88130	36	* \| \7 \|8 /9 \|
Steven Cooreman	0:559902e88130	37	* \|5 \ \| / \|1
Steven Cooreman	0:559902e88130	38	*
Steven Cooreman	0:559902e88130	39	* --6--- ---10--
Steven Cooreman	0:559902e88130	40	*
Steven Cooreman	0:559902e88130	41	* \| / \| \11 \|
Steven Cooreman	0:559902e88130	42	* \|4 /13 \|12 \ \|2
Steven Cooreman	0:559902e88130	43	*
Steven Cooreman	0:559902e88130	44	* -------3------
Steven Cooreman	0:559902e88130	45	* @endverbatim
Steven Cooreman	0:559902e88130	46	* E.g.: First text character bit pattern #3 (above) is
Steven Cooreman	0:559902e88130	47	* Segment 1D for Display
Steven Cooreman	0:559902e88130	48	* Location COM 3, BIT 0
Steven Cooreman	0:559902e88130	49	*****************************************************************************/
Steven Cooreman	0:559902e88130	50	typedef struct
Steven Cooreman	0:559902e88130	51	{
Steven Cooreman	0:559902e88130	52	uint8_t com[14]; /*< LCD COM line (for multiplexing) /
Steven Cooreman	0:559902e88130	53	uint8_t bit[14]; /*< LCD bit number /
Steven Cooreman	0:559902e88130	54	} CHAR_TypeDef;
Steven Cooreman	0:559902e88130	55
Steven Cooreman	0:559902e88130	56
Steven Cooreman	0:559902e88130	57	/************************************************************************//
Steven Cooreman	0:559902e88130	58	* @brief Defines segment COM and BIT fields numeric display
Steven Cooreman	0:559902e88130	59	*****************************************************************************/
Steven Cooreman	0:559902e88130	60	typedef struct
Steven Cooreman	0:559902e88130	61	{
Steven Cooreman	0:559902e88130	62	uint8_t com[7]; /*< LCD COM line (for multiplexing) /
Steven Cooreman	0:559902e88130	63	uint8_t bit[7]; /*< LCD bit number /
Steven Cooreman	0:559902e88130	64	} NUMBER_TypeDef;
Steven Cooreman	0:559902e88130	65
Steven Cooreman	0:559902e88130	66	/************************************************************************//
Steven Cooreman	0:559902e88130	67	* @brief Defines segment COM and BIT fields for Energy Modes on display
Steven Cooreman	0:559902e88130	68	*****************************************************************************/
Steven Cooreman	0:559902e88130	69	typedef struct
Steven Cooreman	0:559902e88130	70	{
Steven Cooreman	0:559902e88130	71	uint8_t com[5]; /*< LCD COM line (for multiplexing) /
Steven Cooreman	0:559902e88130	72	uint8_t bit[5]; /*< LCD bit number /
Steven Cooreman	0:559902e88130	73	} EM_TypeDef;
Steven Cooreman	0:559902e88130	74
Steven Cooreman	0:559902e88130	75	/************************************************************************//
Steven Cooreman	0:559902e88130	76	* @brief Defines segment COM and BIT fields for A-wheel (suited for Anim)
Steven Cooreman	0:559902e88130	77	*****************************************************************************/
Steven Cooreman	0:559902e88130	78	typedef struct
Steven Cooreman	0:559902e88130	79	{
Steven Cooreman	0:559902e88130	80	uint8_t com[8]; /*< LCD COM line (for multiplexing) /
Steven Cooreman	0:559902e88130	81	uint8_t bit[8]; /*< LCD bit number /
Steven Cooreman	0:559902e88130	82	} ARING_TypeDef;
Steven Cooreman	0:559902e88130	83
Steven Cooreman	0:559902e88130	84	/************************************************************************//
Steven Cooreman	0:559902e88130	85	* @brief Defines segment COM and BIT fields for A-wheel (suited for Anim)
Steven Cooreman	0:559902e88130	86	*****************************************************************************/
Steven Cooreman	0:559902e88130	87	typedef struct
Steven Cooreman	0:559902e88130	88	{
Steven Cooreman	0:559902e88130	89	uint8_t com[4]; /*< LCD COM line (for multiplexing) /
Steven Cooreman	0:559902e88130	90	uint8_t bit[4]; /*< LCD bit number /
Steven Cooreman	0:559902e88130	91	} BATTERY_TypeDef;
Steven Cooreman	0:559902e88130	92
Steven Cooreman	0:559902e88130	93	/************************************************************************//
Steven Cooreman	0:559902e88130	94	* @brief Defines prototype for all segments in display
Steven Cooreman	0:559902e88130	95	*****************************************************************************/
Steven Cooreman	0:559902e88130	96	typedef struct
Steven Cooreman	0:559902e88130	97	{
Steven Cooreman	0:559902e88130	98	CHAR_TypeDef Text[7]; /*< Text on display /
Steven Cooreman	0:559902e88130	99	NUMBER_TypeDef Number[4]; /*< Numbers on display /
Steven Cooreman	0:559902e88130	100	EM_TypeDef EMode; /*< Display energy mode /
Steven Cooreman	0:559902e88130	101	ARING_TypeDef ARing; /*< Display ring /
Steven Cooreman	0:559902e88130	102	BATTERY_TypeDef Battery; /*< Display battery /
Steven Cooreman	0:559902e88130	103	} MCU_DISPLAY;
Steven Cooreman	0:559902e88130	104
Steven Cooreman	0:559902e88130	105	/************************************************************************//
Steven Cooreman	0:559902e88130	106	* @brief Working instance of LCD display
Steven Cooreman	0:559902e88130	107	*****************************************************************************/
Steven Cooreman	0:559902e88130	108	static const MCU_DISPLAY EFM_Display = EFM_DISPLAY_DEF;
Steven Cooreman	0:559902e88130	109
Steven Cooreman	0:559902e88130	110
Steven Cooreman	0:559902e88130	111	/************************************************************************//
Steven Cooreman	0:559902e88130	112	* @brief
Steven Cooreman	0:559902e88130	113	* Defines higlighted segments for the alphabet, starting from "blank" (SPACE)
Steven Cooreman	0:559902e88130	114	* Uses bit pattern as defined for text segments above.
Steven Cooreman	0:559902e88130	115	* E.g. a capital O, would have bits 0 1 2 3 4 5 => 0x003f defined
Steven Cooreman	0:559902e88130	116	*****************************************************************************/
Steven Cooreman	0:559902e88130	117	static const uint16_t EFM_Alphabet[] = {
Steven Cooreman	0:559902e88130	118	0x0000, /* space */
Steven Cooreman	0:559902e88130	119	0x1100, /* ! */
Steven Cooreman	0:559902e88130	120	0x0280, /* " */
Steven Cooreman	0:559902e88130	121	0x0000, /* # */
Steven Cooreman	0:559902e88130	122	0x0000, /* $ */
Steven Cooreman	0:559902e88130	123	0x0602, /* % */
Steven Cooreman	0:559902e88130	124	0x0000, /* & */
Steven Cooreman	0:559902e88130	125	0x0020, /* ' */
Steven Cooreman	0:559902e88130	126	0x0039, /* ( */
Steven Cooreman	0:559902e88130	127	0x000f, /* ) */
Steven Cooreman	0:559902e88130	128	0x0000, /* * */
Steven Cooreman	0:559902e88130	129	0x1540, /* + */
Steven Cooreman	0:559902e88130	130	0x2000, /* , */
Steven Cooreman	0:559902e88130	131	0x0440, /* - */
Steven Cooreman	0:559902e88130	132	0x1000, /* . */
Steven Cooreman	0:559902e88130	133	0x2200, /* / */
Steven Cooreman	0:559902e88130	134
Steven Cooreman	0:559902e88130	135	0x003f, /* 0 */
Steven Cooreman	0:559902e88130	136	0x0006, /* 1 */
Steven Cooreman	0:559902e88130	137	0x045b, /* 2 */
Steven Cooreman	0:559902e88130	138	0x044f, /* 3 */
Steven Cooreman	0:559902e88130	139	0x0466, /* 4 */
Steven Cooreman	0:559902e88130	140	0x046d, /* 5 */
Steven Cooreman	0:559902e88130	141	0x047d, /* 6 */
Steven Cooreman	0:559902e88130	142	0x0007, /* 7 */
Steven Cooreman	0:559902e88130	143	0x047f, /* 8 */
Steven Cooreman	0:559902e88130	144	0x046f, /* 9 */
Steven Cooreman	0:559902e88130	145
Steven Cooreman	0:559902e88130	146	0x0000, /* : */
Steven Cooreman	0:559902e88130	147	0x0000, /* ; */
Steven Cooreman	0:559902e88130	148	0x0a00, /* < */
Steven Cooreman	0:559902e88130	149	0x0000, /* = */
Steven Cooreman	0:559902e88130	150	0x2080, /* > */
Steven Cooreman	0:559902e88130	151	0x0000, /* ? */
Steven Cooreman	0:559902e88130	152	0xffff, /* @ */
Steven Cooreman	0:559902e88130	153
Steven Cooreman	0:559902e88130	154	0x0477, /* A */
Steven Cooreman	0:559902e88130	155	0x0a79, /* B */
Steven Cooreman	0:559902e88130	156	0x0039, /* C */
Steven Cooreman	0:559902e88130	157	0x20b0, /* D */
Steven Cooreman	0:559902e88130	158	0x0079, /* E */
Steven Cooreman	0:559902e88130	159	0x0071, /* F */
Steven Cooreman	0:559902e88130	160	0x047d, /* G */
Steven Cooreman	0:559902e88130	161	0x0476, /* H */
Steven Cooreman	0:559902e88130	162	0x0006, /* I */
Steven Cooreman	0:559902e88130	163	0x000e, /* J */
Steven Cooreman	0:559902e88130	164	0x0a70, /* K */
Steven Cooreman	0:559902e88130	165	0x0038, /* L */
Steven Cooreman	0:559902e88130	166	0x02b6, /* M */
Steven Cooreman	0:559902e88130	167	0x08b6, /* N */
Steven Cooreman	0:559902e88130	168	0x003f, /* O */
Steven Cooreman	0:559902e88130	169	0x0473, /* P */
Steven Cooreman	0:559902e88130	170	0x083f, /* Q */
Steven Cooreman	0:559902e88130	171	0x0c73, /* R */
Steven Cooreman	0:559902e88130	172	0x046d, /* S */
Steven Cooreman	0:559902e88130	173	0x1101, /* T */
Steven Cooreman	0:559902e88130	174	0x003e, /* U */
Steven Cooreman	0:559902e88130	175	0x2230, /* V */
Steven Cooreman	0:559902e88130	176	0x2836, /* W */
Steven Cooreman	0:559902e88130	177	0x2a80, /* X */
Steven Cooreman	0:559902e88130	178	0x046e, /* Y */
Steven Cooreman	0:559902e88130	179	0x2209, /* Z */
Steven Cooreman	0:559902e88130	180
Steven Cooreman	0:559902e88130	181	0x0039, /* [ */
Steven Cooreman	0:559902e88130	182	0x0880, /* backslash */
Steven Cooreman	0:559902e88130	183	0x000f, /* ] */
Steven Cooreman	0:559902e88130	184	0x0001, /* ^ */
Steven Cooreman	0:559902e88130	185	0x0008, /* _ */
Steven Cooreman	0:559902e88130	186	0x0100, /* ` */
Steven Cooreman	0:559902e88130	187
Steven Cooreman	0:559902e88130	188	0x1058, /* a */
Steven Cooreman	0:559902e88130	189	0x047c, /* b */
Steven Cooreman	0:559902e88130	190	0x0058, /* c */
Steven Cooreman	0:559902e88130	191	0x045e, /* d */
Steven Cooreman	0:559902e88130	192	0x2058, /* e */
Steven Cooreman	0:559902e88130	193	0x0471, /* f */
Steven Cooreman	0:559902e88130	194	0x0c0c, /* g */
Steven Cooreman	0:559902e88130	195	0x0474, /* h */
Steven Cooreman	0:559902e88130	196	0x0004, /* i */
Steven Cooreman	0:559902e88130	197	0x000e, /* j */
Steven Cooreman	0:559902e88130	198	0x0c70, /* k */
Steven Cooreman	0:559902e88130	199	0x0038, /* l */
Steven Cooreman	0:559902e88130	200	0x1454, /* m */
Steven Cooreman	0:559902e88130	201	0x0454, /* n */
Steven Cooreman	0:559902e88130	202	0x045c, /* o */
Steven Cooreman	0:559902e88130	203	0x0473, /* p */
Steven Cooreman	0:559902e88130	204	0x0467, /* q */
Steven Cooreman	0:559902e88130	205	0x0450, /* r */
Steven Cooreman	0:559902e88130	206	0x0c08, /* s */
Steven Cooreman	0:559902e88130	207	0x0078, /* t */
Steven Cooreman	0:559902e88130	208	0x001c, /* u */
Steven Cooreman	0:559902e88130	209	0x2010, /* v */
Steven Cooreman	0:559902e88130	210	0x2814, /* w */
Steven Cooreman	0:559902e88130	211	0x2a80, /* x */
Steven Cooreman	0:559902e88130	212	0x080c, /* y */
Steven Cooreman	0:559902e88130	213	0x2048, /* z */
Steven Cooreman	0:559902e88130	214
Steven Cooreman	0:559902e88130	215	0x0000,
Steven Cooreman	0:559902e88130	216	};
Steven Cooreman	0:559902e88130	217
Steven Cooreman	0:559902e88130	218	/************************************************************************//
Steven Cooreman	0:559902e88130	219	* @brief
Steven Cooreman	0:559902e88130	220	* Defines higlighted segments for the numeric display
Steven Cooreman	0:559902e88130	221	*****************************************************************************/
Steven Cooreman	0:559902e88130	222
Steven Cooreman	0:559902e88130	223	static const uint16_t EFM_Numbers[] = {
Steven Cooreman	0:559902e88130	224	0x003f, /* 0 */
Steven Cooreman	0:559902e88130	225	0x0006, /* 1 */
Steven Cooreman	0:559902e88130	226	0x005b, /* 2 */
Steven Cooreman	0:559902e88130	227	0x004f, /* 3 */
Steven Cooreman	0:559902e88130	228	0x0066, /* 4 */
Steven Cooreman	0:559902e88130	229	0x006d, /* 5 */
Steven Cooreman	0:559902e88130	230	0x007d, /* 6 */
Steven Cooreman	0:559902e88130	231	0x0007, /* 7 */
Steven Cooreman	0:559902e88130	232	0x007f, /* 8 */
Steven Cooreman	0:559902e88130	233	0x006f, /* 9 */
Steven Cooreman	0:559902e88130	234	0x0077, /* A */
Steven Cooreman	0:559902e88130	235	0x007c, /* b */
Steven Cooreman	0:559902e88130	236	0x0039, /* C */
Steven Cooreman	0:559902e88130	237	0x005e, /* d */
Steven Cooreman	0:559902e88130	238	0x0079, /* E */
Steven Cooreman	0:559902e88130	239	0x0071, /* F */
Steven Cooreman	0:559902e88130	240	0x0040 /* - */
Steven Cooreman	0:559902e88130	241	};
Steven Cooreman	0:559902e88130	242
Steven Cooreman	0:559902e88130	243	/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
Steven Cooreman	0:559902e88130	244	/* sign is last element of the table */
Steven Cooreman	0:559902e88130	245	static const uint16_t signIndex = sizeof(EFM_Numbers)/sizeof(uint16_t) - 1 ;
Steven Cooreman	0:559902e88130	246
Steven Cooreman	0:559902e88130	247	static const LCD_Init_TypeDef lcdInit = LCD_INIT_DEF;
Steven Cooreman	0:559902e88130	248	/** @endcond */
Steven Cooreman	0:559902e88130	249
Steven Cooreman	0:559902e88130	250
Steven Cooreman	0:559902e88130	251	/************************************************************************//
Steven Cooreman	0:559902e88130	252	* @brief Disable all segments
Steven Cooreman	0:559902e88130	253	*****************************************************************************/
Steven Cooreman	0:559902e88130	254	void SegmentLCD_AllOff(void)
Steven Cooreman	0:559902e88130	255	{
Steven Cooreman	0:559902e88130	256	/* Turn on low segments */
Steven Cooreman	0:559902e88130	257	LCD_ALL_SEGMENTS_OFF();
Steven Cooreman	0:559902e88130	258	}
Steven Cooreman	0:559902e88130	259
Steven Cooreman	0:559902e88130	260
Steven Cooreman	0:559902e88130	261	/************************************************************************//
Steven Cooreman	0:559902e88130	262	* @brief Enable all segments
Steven Cooreman	0:559902e88130	263	*****************************************************************************/
Steven Cooreman	0:559902e88130	264	void SegmentLCD_AllOn(void)
Steven Cooreman	0:559902e88130	265	{
Steven Cooreman	0:559902e88130	266	LCD_ALL_SEGMENTS_ON();
Steven Cooreman	0:559902e88130	267	}
Steven Cooreman	0:559902e88130	268
Steven Cooreman	0:559902e88130	269
Steven Cooreman	0:559902e88130	270	/************************************************************************//
Steven Cooreman	0:559902e88130	271	* @brief Turn all segments on alpha characters in display off
Steven Cooreman	0:559902e88130	272	*****************************************************************************/
Steven Cooreman	0:559902e88130	273	void SegmentLCD_AlphaNumberOff(void)
Steven Cooreman	0:559902e88130	274	{
Steven Cooreman	0:559902e88130	275	LCD_ALPHA_NUMBER_OFF();
Steven Cooreman	0:559902e88130	276	return;
Steven Cooreman	0:559902e88130	277	}
Steven Cooreman	0:559902e88130	278
Steven Cooreman	0:559902e88130	279
Steven Cooreman	0:559902e88130	280	/************************************************************************//
Steven Cooreman	0:559902e88130	281	* @brief Light up or shut off Ring of Indicators
Steven Cooreman	0:559902e88130	282	* @param anum "Segment number" on "Ring", range 0 - 7
Steven Cooreman	0:559902e88130	283	* @param on Zero is off, non-zero is on
Steven Cooreman	0:559902e88130	284	*****************************************************************************/
Steven Cooreman	0:559902e88130	285	void SegmentLCD_ARing(int anum, int on)
Steven Cooreman	0:559902e88130	286	{
Steven Cooreman	0:559902e88130	287	uint32_t com, bit;
Steven Cooreman	0:559902e88130	288
Steven Cooreman	0:559902e88130	289	com = EFM_Display.ARing.com[anum];
Steven Cooreman	0:559902e88130	290	bit = EFM_Display.ARing.bit[anum];
Steven Cooreman	0:559902e88130	291
Steven Cooreman	0:559902e88130	292	if (on)
Steven Cooreman	0:559902e88130	293	{
Steven Cooreman	0:559902e88130	294	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	295	}
Steven Cooreman	0:559902e88130	296	else
Steven Cooreman	0:559902e88130	297	{
Steven Cooreman	0:559902e88130	298	LCD_SegmentSet(com, bit, false);
Steven Cooreman	0:559902e88130	299	}
Steven Cooreman	0:559902e88130	300	}
Steven Cooreman	0:559902e88130	301
Steven Cooreman	0:559902e88130	302
Steven Cooreman	0:559902e88130	303	/************************************************************************//
Steven Cooreman	0:559902e88130	304	* @brief Light up or shut off Battery Indicator
Steven Cooreman	0:559902e88130	305	* @param batteryLevel Battery Level, 0 to 4 (0 turns all off)
Steven Cooreman	0:559902e88130	306	*****************************************************************************/
Steven Cooreman	0:559902e88130	307	void SegmentLCD_Battery(int batteryLevel)
Steven Cooreman	0:559902e88130	308	{
Steven Cooreman	0:559902e88130	309	uint32_t com, bit;
Steven Cooreman	0:559902e88130	310	int i, on;
Steven Cooreman	0:559902e88130	311
Steven Cooreman	0:559902e88130	312	for (i = 0; i < 4; i++)
Steven Cooreman	0:559902e88130	313	{
Steven Cooreman	0:559902e88130	314	if (i < batteryLevel)
Steven Cooreman	0:559902e88130	315	{
Steven Cooreman	0:559902e88130	316	on = 1;
Steven Cooreman	0:559902e88130	317	}
Steven Cooreman	0:559902e88130	318	else
Steven Cooreman	0:559902e88130	319	{
Steven Cooreman	0:559902e88130	320	on = 0;
Steven Cooreman	0:559902e88130	321	}
Steven Cooreman	0:559902e88130	322	com = EFM_Display.Battery.com[i];
Steven Cooreman	0:559902e88130	323	bit = EFM_Display.Battery.bit[i];
Steven Cooreman	0:559902e88130	324
Steven Cooreman	0:559902e88130	325	if (on)
Steven Cooreman	0:559902e88130	326	{
Steven Cooreman	0:559902e88130	327	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	328	}
Steven Cooreman	0:559902e88130	329	else
Steven Cooreman	0:559902e88130	330	{
Steven Cooreman	0:559902e88130	331	LCD_SegmentSet(com, bit, false);
Steven Cooreman	0:559902e88130	332	}
Steven Cooreman	0:559902e88130	333	}
Steven Cooreman	0:559902e88130	334	}
Steven Cooreman	0:559902e88130	335
Steven Cooreman	0:559902e88130	336
Steven Cooreman	0:559902e88130	337	/************************************************************************//
Steven Cooreman	0:559902e88130	338	* @brief Disables LCD controller
Steven Cooreman	0:559902e88130	339	*****************************************************************************/
Steven Cooreman	0:559902e88130	340	void SegmentLCD_Disable(void)
Steven Cooreman	0:559902e88130	341	{
Steven Cooreman	0:559902e88130	342	/* Disable LCD */
Steven Cooreman	0:559902e88130	343	LCD_Enable(false);
Steven Cooreman	0:559902e88130	344
Steven Cooreman	0:559902e88130	345	/* Make sure CTRL register has been updated */
Steven Cooreman	0:559902e88130	346	LCD_SyncBusyDelay(LCD_SYNCBUSY_CTRL);
Steven Cooreman	0:559902e88130	347
Steven Cooreman	0:559902e88130	348	/* Turn off LCD clock */
Steven Cooreman	0:559902e88130	349	CMU_ClockEnable(cmuClock_LCD, false);
Steven Cooreman	0:559902e88130	350
Steven Cooreman	0:559902e88130	351	/* Turn off voltage boost if enabled */
Steven Cooreman	0:559902e88130	352	CMU->LCDCTRL = 0;
Steven Cooreman	0:559902e88130	353	}
Steven Cooreman	0:559902e88130	354
Steven Cooreman	0:559902e88130	355
Steven Cooreman	0:559902e88130	356	/************************************************************************//
Steven Cooreman	0:559902e88130	357	* @brief Light up or shut off Energy Mode indicator
Steven Cooreman	0:559902e88130	358	* @param em Energy Mode numer 0 to 4
Steven Cooreman	0:559902e88130	359	* @param on Zero is off, non-zero is on
Steven Cooreman	0:559902e88130	360	*****************************************************************************/
Steven Cooreman	0:559902e88130	361	void SegmentLCD_EnergyMode(int em, int on)
Steven Cooreman	0:559902e88130	362	{
Steven Cooreman	0:559902e88130	363	uint32_t com, bit;
Steven Cooreman	0:559902e88130	364
Steven Cooreman	0:559902e88130	365	com = EFM_Display.EMode.com[em];
Steven Cooreman	0:559902e88130	366	bit = EFM_Display.EMode.bit[em];
Steven Cooreman	0:559902e88130	367
Steven Cooreman	0:559902e88130	368	if (on)
Steven Cooreman	0:559902e88130	369	{
Steven Cooreman	0:559902e88130	370	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	371	}
Steven Cooreman	0:559902e88130	372	else
Steven Cooreman	0:559902e88130	373	{
Steven Cooreman	0:559902e88130	374	LCD_SegmentSet(com, bit, false);
Steven Cooreman	0:559902e88130	375	}
Steven Cooreman	0:559902e88130	376	}
Steven Cooreman	0:559902e88130	377
Steven Cooreman	0:559902e88130	378	/************************************************************************//
Steven Cooreman	0:559902e88130	379	* @brief Get frame rate division value corresponding to mux selection
Steven Cooreman	0:559902e88130	380	* @param mux enum
Steven Cooreman	0:559902e88130	381	*****************************************************************************/
Steven Cooreman	0:559902e88130	382	uint8_t SegmentLCD_GetFrameRateDiv(LCD_Mux_TypeDef muxSetting) {
Steven Cooreman	0:559902e88130	383	switch(muxSetting) {
Steven Cooreman	0:559902e88130	384	/** Static (segments can be multiplexed with LCD_COM[0]) */
Steven Cooreman	0:559902e88130	385	case lcdMuxStatic: return 2;
Steven Cooreman	0:559902e88130	386	/** Duplex / 1/2 Duty cycle (segments can be multiplexed with LCD_COM[0:1]) */
Steven Cooreman	0:559902e88130	387	case lcdMuxDuplex: return 4;
Steven Cooreman	0:559902e88130	388	/** Triplex / 1/3 Duty cycle (segments can be multiplexed with LCD_COM[0:2]) */
Steven Cooreman	0:559902e88130	389	case lcdMuxTriplex: return 6;
Steven Cooreman	0:559902e88130	390	/** Quadruplex / 1/4 Duty cycle (segments can be multiplexed with LCD_COM[0:3]) */
Steven Cooreman	0:559902e88130	391	case lcdMuxQuadruplex: return 8;
Steven Cooreman	0:559902e88130	392	#if defined(_EFM32_TINY_FAMILY) \|\| defined(_EFM32_GIANT_FAMILY) \|\| defined(_EFM32_WONDER_FAMILY)
Steven Cooreman	0:559902e88130	393	/** Sextaplex / 1/6 Duty cycle (segments can be multiplexed with LCD_COM[0:5]) */
Steven Cooreman	0:559902e88130	394	case lcdMuxSextaplex: return 12;
Steven Cooreman	0:559902e88130	395	/** Octaplex / 1/6 Duty cycle (segments can be multiplexed with LCD_COM[0:5]) */
Steven Cooreman	0:559902e88130	396	case lcdMuxOctaplex: return 16;
Steven Cooreman	0:559902e88130	397	#endif
Steven Cooreman	0:559902e88130	398	default: return 1;
Steven Cooreman	0:559902e88130	399	}
Steven Cooreman	0:559902e88130	400	}
Steven Cooreman	0:559902e88130	401
Steven Cooreman	0:559902e88130	402	/************************************************************************//
Steven Cooreman	0:559902e88130	403	* @brief Segment LCD Initialization routine for EFM32 STK display
Steven Cooreman	0:559902e88130	404	* @param useBoost Set to use voltage boost
Steven Cooreman	0:559902e88130	405	*****************************************************************************/
Steven Cooreman	0:559902e88130	406	void SegmentLCD_Init(bool useBoost)
Steven Cooreman	0:559902e88130	407	{
Steven Cooreman	0:559902e88130	408
Steven Cooreman	0:559902e88130	409	/* Ensure LE modules are accessible */
Steven Cooreman	0:559902e88130	410	CMU_ClockEnable(cmuClock_CORELE, true);
Steven Cooreman	0:559902e88130	411
Steven Cooreman	0:559902e88130	412	/* Enable LFRCO as LFACLK in CMU (will also enable oscillator if not enabled) */
Steven Cooreman	0:559902e88130	413	CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_LFRCO);
Steven Cooreman	0:559902e88130	414
Steven Cooreman	0:559902e88130	415	/* LCD Controller Prescaler */
Steven Cooreman	0:559902e88130	416
Steven Cooreman	0:559902e88130	417	/* Calculate value. Approach 50Hz for framerate. */
Steven Cooreman	0:559902e88130	418	uint32_t prescaler = (LOW_ENERGY_CLOCK_FREQUENCY / 32) / SegmentLCD_GetFrameRateDiv(lcdInit.mux);
Steven Cooreman	0:559902e88130	419
Steven Cooreman	0:559902e88130	420	CMU_ClockDivSet(cmuClock_LCDpre, prescaler);
Steven Cooreman	0:559902e88130	421
Steven Cooreman	0:559902e88130	422	/* Frame Rate */
Steven Cooreman	0:559902e88130	423	CMU_LCDClkFDIVSet(0);
Steven Cooreman	0:559902e88130	424
Steven Cooreman	0:559902e88130	425	/* Enable clock to LCD module */
Steven Cooreman	0:559902e88130	426	CMU_ClockEnable(cmuClock_LCD, true);
Steven Cooreman	0:559902e88130	427
Steven Cooreman	0:559902e88130	428	LCD_DISPLAY_ENABLE();
Steven Cooreman	0:559902e88130	429
Steven Cooreman	0:559902e88130	430	/* Disable interrupts */
Steven Cooreman	0:559902e88130	431	LCD_IntDisable(0xFFFFFFFF);
Steven Cooreman	0:559902e88130	432
Steven Cooreman	0:559902e88130	433	/* Initialize and enable LCD controller */
Steven Cooreman	0:559902e88130	434	LCD_Init(&lcdInit);
Steven Cooreman	0:559902e88130	435
Steven Cooreman	0:559902e88130	436	/* Enable all display segments */
Steven Cooreman	0:559902e88130	437	LCD_SEGMENTS_ENABLE();
Steven Cooreman	0:559902e88130	438
Steven Cooreman	0:559902e88130	439	/* Enable boost if necessary */
Steven Cooreman	0:559902e88130	440	if (useBoost)
Steven Cooreman	0:559902e88130	441	{
Steven Cooreman	0:559902e88130	442	LCD_VBoostSet(LCD_BOOST_LEVEL);
Steven Cooreman	0:559902e88130	443	LCD_VLCDSelect(lcdVLCDSelVExtBoost);
Steven Cooreman	0:559902e88130	444	CMU->LCDCTRL \|= CMU_LCDCTRL_VBOOSTEN;
Steven Cooreman	0:559902e88130	445	}
Steven Cooreman	0:559902e88130	446
Steven Cooreman	0:559902e88130	447	/* Turn all segments off */
Steven Cooreman	0:559902e88130	448	SegmentLCD_AllOff();
Steven Cooreman	0:559902e88130	449
Steven Cooreman	0:559902e88130	450	LCD_SyncBusyDelay(0xFFFFFFFF);
Steven Cooreman	0:559902e88130	451	}
Steven Cooreman	0:559902e88130	452
Steven Cooreman	0:559902e88130	453
Steven Cooreman	0:559902e88130	454	/************************************************************************//
Steven Cooreman	0:559902e88130	455	* @brief Write a hexadecimal number on lower alphanumeric part of
Steven Cooreman	0:559902e88130	456	* Segment LCD display
Steven Cooreman	0:559902e88130	457	* @param num Hexadecimal number value to put on display, in range 0
Steven Cooreman	0:559902e88130	458	* to 0x0FFFFFFF
Steven Cooreman	0:559902e88130	459	*****************************************************************************/
Steven Cooreman	0:559902e88130	460	void SegmentLCD_LowerHex( uint32_t num )
Steven Cooreman	0:559902e88130	461	{
Steven Cooreman	0:559902e88130	462	int i;
Steven Cooreman	0:559902e88130	463	char str[7];
Steven Cooreman	0:559902e88130	464	uint32_t nibble;
Steven Cooreman	0:559902e88130	465
Steven Cooreman	0:559902e88130	466	SegmentLCD_Symbol(LCD_SYMBOL_MINUS, 0);
Steven Cooreman	0:559902e88130	467
Steven Cooreman	0:559902e88130	468	for ( i=6; i>=0; i-- )
Steven Cooreman	0:559902e88130	469	{
Steven Cooreman	0:559902e88130	470	nibble = num & 0xF;
Steven Cooreman	0:559902e88130	471
Steven Cooreman	0:559902e88130	472	if ( nibble < 10 )
Steven Cooreman	0:559902e88130	473	str[i] = nibble + '0';
Steven Cooreman	0:559902e88130	474	else if ( nibble == 11 )
Steven Cooreman	0:559902e88130	475	str[i] = 'b';
Steven Cooreman	0:559902e88130	476	else if ( nibble == 13 )
Steven Cooreman	0:559902e88130	477	str[i] = 'd';
Steven Cooreman	0:559902e88130	478	else
Steven Cooreman	0:559902e88130	479	str[i] = (nibble - 10) + 'A';
Steven Cooreman	0:559902e88130	480
Steven Cooreman	0:559902e88130	481	num >>= 4;
Steven Cooreman	0:559902e88130	482	}
Steven Cooreman	0:559902e88130	483
Steven Cooreman	0:559902e88130	484	SegmentLCD_Write(str);
Steven Cooreman	0:559902e88130	485	}
Steven Cooreman	0:559902e88130	486
Steven Cooreman	0:559902e88130	487	/************************************************************************//
Steven Cooreman	0:559902e88130	488	* @brief Write number on lower alphanumeric part of Segment LCD display
Steven Cooreman	0:559902e88130	489	* @param num Numeric value to put on display, in range -9999999 to +9999999
Steven Cooreman	0:559902e88130	490	*****************************************************************************/
Steven Cooreman	0:559902e88130	491	void SegmentLCD_LowerNumber( int num )
Steven Cooreman	0:559902e88130	492	{
Steven Cooreman	0:559902e88130	493	int i;
Steven Cooreman	0:559902e88130	494	char str[7];
Steven Cooreman	0:559902e88130	495
Steven Cooreman	0:559902e88130	496	SegmentLCD_Symbol(LCD_SYMBOL_MINUS, 0);
Steven Cooreman	0:559902e88130	497
Steven Cooreman	0:559902e88130	498	if ( ( num > 9999999 ) \|\| ( num < -9999999 ) )
Steven Cooreman	0:559902e88130	499	{
Steven Cooreman	0:559902e88130	500	SegmentLCD_Write("Ovrflow");
Steven Cooreman	0:559902e88130	501	return;
Steven Cooreman	0:559902e88130	502	}
Steven Cooreman	0:559902e88130	503
Steven Cooreman	0:559902e88130	504	if ( num < 0 )
Steven Cooreman	0:559902e88130	505	{
Steven Cooreman	0:559902e88130	506	SegmentLCD_Symbol(LCD_SYMBOL_MINUS, 1);
Steven Cooreman	0:559902e88130	507	num = -num;
Steven Cooreman	0:559902e88130	508	}
Steven Cooreman	0:559902e88130	509
Steven Cooreman	0:559902e88130	510	for ( i=6; i>=0; i-- )
Steven Cooreman	0:559902e88130	511	{
Steven Cooreman	0:559902e88130	512	if ( ( i < 6 ) && ( num == 0 ) )
Steven Cooreman	0:559902e88130	513	{
Steven Cooreman	0:559902e88130	514	str[i] = ' ';
Steven Cooreman	0:559902e88130	515	}
Steven Cooreman	0:559902e88130	516	else
Steven Cooreman	0:559902e88130	517	{
Steven Cooreman	0:559902e88130	518	str[i] = (num % 10) + '0';
Steven Cooreman	0:559902e88130	519	num /= 10;
Steven Cooreman	0:559902e88130	520	}
Steven Cooreman	0:559902e88130	521	}
Steven Cooreman	0:559902e88130	522
Steven Cooreman	0:559902e88130	523	SegmentLCD_Write(str);
Steven Cooreman	0:559902e88130	524	}
Steven Cooreman	0:559902e88130	525
Steven Cooreman	0:559902e88130	526
Steven Cooreman	0:559902e88130	527	/************************************************************************//
Steven Cooreman	0:559902e88130	528	* @brief Write number on numeric part on Segment LCD display
Steven Cooreman	0:559902e88130	529	* @param value Numeric value to put on display, in range -999 to +9999
Steven Cooreman	0:559902e88130	530	*****************************************************************************/
Steven Cooreman	0:559902e88130	531	void SegmentLCD_Number(int value)
Steven Cooreman	0:559902e88130	532	{
Steven Cooreman	0:559902e88130	533	int i, com, bit, digit, div, neg;
Steven Cooreman	0:559902e88130	534	uint16_t bitpattern;
Steven Cooreman	0:559902e88130	535	uint16_t num;
Steven Cooreman	0:559902e88130	536
Steven Cooreman	0:559902e88130	537	/* Parameter consistancy check */
Steven Cooreman	0:559902e88130	538	if (value >= 9999)
Steven Cooreman	0:559902e88130	539	{
Steven Cooreman	0:559902e88130	540	value = 9999;
Steven Cooreman	0:559902e88130	541	}
Steven Cooreman	0:559902e88130	542	if (value <= -1000)
Steven Cooreman	0:559902e88130	543	{
Steven Cooreman	0:559902e88130	544	value = -999;
Steven Cooreman	0:559902e88130	545	}
Steven Cooreman	0:559902e88130	546	if (value < 0)
Steven Cooreman	0:559902e88130	547	{
Steven Cooreman	0:559902e88130	548	value = abs(value);
Steven Cooreman	0:559902e88130	549	neg = 1;
Steven Cooreman	0:559902e88130	550	}
Steven Cooreman	0:559902e88130	551	else
Steven Cooreman	0:559902e88130	552	{
Steven Cooreman	0:559902e88130	553	neg = 0;
Steven Cooreman	0:559902e88130	554	}
Steven Cooreman	0:559902e88130	555
Steven Cooreman	0:559902e88130	556	/* If an update is in progress we must block, or there might be tearing */
Steven Cooreman	0:559902e88130	557	LCD_SyncBusyDelay(0xFFFFFFFF);
Steven Cooreman	0:559902e88130	558
Steven Cooreman	0:559902e88130	559	/* Freeze updates to avoid partial refresh of display */
Steven Cooreman	0:559902e88130	560	LCD_FreezeEnable(true);
Steven Cooreman	0:559902e88130	561
Steven Cooreman	0:559902e88130	562	/* Turn off all number LCD segments */
Steven Cooreman	0:559902e88130	563	SegmentLCD_NumberOff();
Steven Cooreman	0:559902e88130	564
Steven Cooreman	0:559902e88130	565	/* Extract useful digits */
Steven Cooreman	0:559902e88130	566	div = 1;
Steven Cooreman	0:559902e88130	567	for (digit = 0; digit < 4; digit++)
Steven Cooreman	0:559902e88130	568	{
Steven Cooreman	0:559902e88130	569	num = (value / div) % 10;
Steven Cooreman	0:559902e88130	570	if ((neg == 1) && (digit == 3)) num = signIndex;
Steven Cooreman	0:559902e88130	571	/* Get number layout of display */
Steven Cooreman	0:559902e88130	572	bitpattern = EFM_Numbers[num];
Steven Cooreman	0:559902e88130	573	for (i = 0; i < 7; i++)
Steven Cooreman	0:559902e88130	574	{
Steven Cooreman	0:559902e88130	575	bit = EFM_Display.Number[digit].bit[i];
Steven Cooreman	0:559902e88130	576	com = EFM_Display.Number[digit].com[i];
Steven Cooreman	0:559902e88130	577	if (bitpattern & (1 << i))
Steven Cooreman	0:559902e88130	578	{
Steven Cooreman	0:559902e88130	579	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	580	}
Steven Cooreman	0:559902e88130	581	}
Steven Cooreman	0:559902e88130	582	div = div * 10;
Steven Cooreman	0:559902e88130	583	}
Steven Cooreman	0:559902e88130	584	/* Sync LCD registers to LE domain */
Steven Cooreman	0:559902e88130	585	LCD_FreezeEnable(false);
Steven Cooreman	0:559902e88130	586	}
Steven Cooreman	0:559902e88130	587
Steven Cooreman	0:559902e88130	588
Steven Cooreman	0:559902e88130	589	/************************************************************************//
Steven Cooreman	0:559902e88130	590	* @brief Turn all segments on numeric digits in display off
Steven Cooreman	0:559902e88130	591	*****************************************************************************/
Steven Cooreman	0:559902e88130	592	void SegmentLCD_NumberOff(void)
Steven Cooreman	0:559902e88130	593	{
Steven Cooreman	0:559902e88130	594	/* Turn off all number segments */
Steven Cooreman	0:559902e88130	595	LCD_NUMBER_OFF();
Steven Cooreman	0:559902e88130	596	return;
Steven Cooreman	0:559902e88130	597	}
Steven Cooreman	0:559902e88130	598
Steven Cooreman	0:559902e88130	599
Steven Cooreman	0:559902e88130	600	/************************************************************************//
Steven Cooreman	0:559902e88130	601	* @brief Light up or shut off various symbols on Segment LCD
Steven Cooreman	0:559902e88130	602	* @param s Which symbol to turn on or off
Steven Cooreman	0:559902e88130	603	* @param on Zero is off, non-zero is on
Steven Cooreman	0:559902e88130	604	*****************************************************************************/
Steven Cooreman	0:559902e88130	605	void SegmentLCD_Symbol(lcdSymbol s, int on)
Steven Cooreman	0:559902e88130	606	{
Steven Cooreman	0:559902e88130	607	int com = 0;
Steven Cooreman	0:559902e88130	608	int bit = 0;
Steven Cooreman	0:559902e88130	609
Steven Cooreman	0:559902e88130	610	switch (s)
Steven Cooreman	0:559902e88130	611	{
Steven Cooreman	0:559902e88130	612	case LCD_SYMBOL_GECKO:
Steven Cooreman	0:559902e88130	613	com = LCD_SYMBOL_GECKO_COM;
Steven Cooreman	0:559902e88130	614	bit = LCD_SYMBOL_GECKO_SEG;
Steven Cooreman	0:559902e88130	615	break;
Steven Cooreman	0:559902e88130	616	case LCD_SYMBOL_ANT:
Steven Cooreman	0:559902e88130	617	com = LCD_SYMBOL_ANT_COM;
Steven Cooreman	0:559902e88130	618	bit = LCD_SYMBOL_ANT_SEG;
Steven Cooreman	0:559902e88130	619	break;
Steven Cooreman	0:559902e88130	620	case LCD_SYMBOL_PAD0:
Steven Cooreman	0:559902e88130	621	com = LCD_SYMBOL_PAD0_COM;
Steven Cooreman	0:559902e88130	622	bit = LCD_SYMBOL_PAD0_SEG;
Steven Cooreman	0:559902e88130	623	break;
Steven Cooreman	0:559902e88130	624	case LCD_SYMBOL_PAD1:
Steven Cooreman	0:559902e88130	625	com = LCD_SYMBOL_PAD1_COM;
Steven Cooreman	0:559902e88130	626	bit = LCD_SYMBOL_PAD1_SEG;
Steven Cooreman	0:559902e88130	627	break;
Steven Cooreman	0:559902e88130	628	case LCD_SYMBOL_EFM32:
Steven Cooreman	0:559902e88130	629	com = LCD_SYMBOL_EFM32_COM;
Steven Cooreman	0:559902e88130	630	bit = LCD_SYMBOL_EFM32_SEG;
Steven Cooreman	0:559902e88130	631	break;
Steven Cooreman	0:559902e88130	632	case LCD_SYMBOL_MINUS:
Steven Cooreman	0:559902e88130	633	com = LCD_SYMBOL_MINUS_COM;
Steven Cooreman	0:559902e88130	634	bit = LCD_SYMBOL_MINUS_SEG;
Steven Cooreman	0:559902e88130	635	break;
Steven Cooreman	0:559902e88130	636	case LCD_SYMBOL_COL3:
Steven Cooreman	0:559902e88130	637	com = LCD_SYMBOL_COL3_COM;
Steven Cooreman	0:559902e88130	638	bit = LCD_SYMBOL_COL3_SEG;
Steven Cooreman	0:559902e88130	639	break;
Steven Cooreman	0:559902e88130	640	case LCD_SYMBOL_COL5:
Steven Cooreman	0:559902e88130	641	com = LCD_SYMBOL_COL5_COM;
Steven Cooreman	0:559902e88130	642	bit = LCD_SYMBOL_COL5_SEG;
Steven Cooreman	0:559902e88130	643	break;
Steven Cooreman	0:559902e88130	644	case LCD_SYMBOL_COL10:
Steven Cooreman	0:559902e88130	645	com = LCD_SYMBOL_COL10_COM;
Steven Cooreman	0:559902e88130	646	bit = LCD_SYMBOL_COL10_SEG;
Steven Cooreman	0:559902e88130	647	break;
Steven Cooreman	0:559902e88130	648	#ifdef LCD_SYMBOL_DEGC_SEG
Steven Cooreman	0:559902e88130	649	case LCD_SYMBOL_DEGC:
Steven Cooreman	0:559902e88130	650	com = LCD_SYMBOL_DEGC_COM;
Steven Cooreman	0:559902e88130	651	bit = LCD_SYMBOL_DEGC_SEG;
Steven Cooreman	0:559902e88130	652	break;
Steven Cooreman	0:559902e88130	653	#endif
Steven Cooreman	0:559902e88130	654	#ifdef LCD_SYMBOL_DEGF_SEG
Steven Cooreman	0:559902e88130	655	case LCD_SYMBOL_DEGF:
Steven Cooreman	0:559902e88130	656	com = LCD_SYMBOL_DEGF_COM;
Steven Cooreman	0:559902e88130	657	bit = LCD_SYMBOL_DEGF_SEG;
Steven Cooreman	0:559902e88130	658	break;
Steven Cooreman	0:559902e88130	659	#endif
Steven Cooreman	0:559902e88130	660	#ifdef LCD_SYMBOL_DP2_SEG
Steven Cooreman	0:559902e88130	661	case LCD_SYMBOL_DP2:
Steven Cooreman	0:559902e88130	662	com = LCD_SYMBOL_DP2_COM;
Steven Cooreman	0:559902e88130	663	bit = LCD_SYMBOL_DP2_SEG;
Steven Cooreman	0:559902e88130	664	break;
Steven Cooreman	0:559902e88130	665	#endif
Steven Cooreman	0:559902e88130	666	#ifdef LCD_SYMBOL_DP3_SEG
Steven Cooreman	0:559902e88130	667	case LCD_SYMBOL_DP3:
Steven Cooreman	0:559902e88130	668	com = LCD_SYMBOL_DP3_COM;
Steven Cooreman	0:559902e88130	669	bit = LCD_SYMBOL_DP3_SEG;
Steven Cooreman	0:559902e88130	670	break;
Steven Cooreman	0:559902e88130	671	#endif
Steven Cooreman	0:559902e88130	672	#ifdef LCD_SYMBOL_DP4_SEG
Steven Cooreman	0:559902e88130	673	case LCD_SYMBOL_DP4:
Steven Cooreman	0:559902e88130	674	com = LCD_SYMBOL_DP4_COM;
Steven Cooreman	0:559902e88130	675	bit = LCD_SYMBOL_DP4_SEG;
Steven Cooreman	0:559902e88130	676	break;
Steven Cooreman	0:559902e88130	677	#endif
Steven Cooreman	0:559902e88130	678	#ifdef LCD_SYMBOL_DP5_SEG
Steven Cooreman	0:559902e88130	679	case LCD_SYMBOL_DP5:
Steven Cooreman	0:559902e88130	680	com = LCD_SYMBOL_DP5_COM;
Steven Cooreman	0:559902e88130	681	bit = LCD_SYMBOL_DP5_SEG;
Steven Cooreman	0:559902e88130	682	break;
Steven Cooreman	0:559902e88130	683	#endif
Steven Cooreman	0:559902e88130	684	case LCD_SYMBOL_DP6:
Steven Cooreman	0:559902e88130	685	com = LCD_SYMBOL_DP6_COM;
Steven Cooreman	0:559902e88130	686	bit = LCD_SYMBOL_DP6_SEG;
Steven Cooreman	0:559902e88130	687	break;
Steven Cooreman	0:559902e88130	688	case LCD_SYMBOL_DP10:
Steven Cooreman	0:559902e88130	689	com = LCD_SYMBOL_DP10_COM;
Steven Cooreman	0:559902e88130	690	bit = LCD_SYMBOL_DP10_SEG;
Steven Cooreman	0:559902e88130	691	break;
Steven Cooreman	0:559902e88130	692	#ifdef LCD_SYMBOL_AM_SEG
Steven Cooreman	0:559902e88130	693	case LCD_SYMBOL_AM:
Steven Cooreman	0:559902e88130	694	com = LCD_SYMBOL_AM_COM;
Steven Cooreman	0:559902e88130	695	bit = LCD_SYMBOL_AM_SEG;
Steven Cooreman	0:559902e88130	696	break;
Steven Cooreman	0:559902e88130	697	#endif
Steven Cooreman	0:559902e88130	698	#ifdef LCD_SYMBOL_PM_SEG
Steven Cooreman	0:559902e88130	699	case LCD_SYMBOL_PM:
Steven Cooreman	0:559902e88130	700	com = LCD_SYMBOL_PM_COM;
Steven Cooreman	0:559902e88130	701	bit = LCD_SYMBOL_PM_SEG;
Steven Cooreman	0:559902e88130	702	break;
Steven Cooreman	0:559902e88130	703	#endif
Steven Cooreman	0:559902e88130	704	#ifdef LCD_SYMBOL_MICROAMP_SEG
Steven Cooreman	0:559902e88130	705	case LCD_SYMBOL_MICROAMP:
Steven Cooreman	0:559902e88130	706	com = LCD_SYMBOL_MICROAMP_COM;
Steven Cooreman	0:559902e88130	707	bit = LCD_SYMBOL_MICROAMP_SEG;
Steven Cooreman	0:559902e88130	708	break;
Steven Cooreman	0:559902e88130	709	#endif
Steven Cooreman	0:559902e88130	710	#ifdef LCD_SYMBOL_MILLIAMP_SEG
Steven Cooreman	0:559902e88130	711	case LCD_SYMBOL_MILLIAMP:
Steven Cooreman	0:559902e88130	712	com = LCD_SYMBOL_MILLIAMP_COM;
Steven Cooreman	0:559902e88130	713	bit = LCD_SYMBOL_MILLIAMP_SEG;
Steven Cooreman	0:559902e88130	714	break;
Steven Cooreman	0:559902e88130	715	#endif
Steven Cooreman	0:559902e88130	716
Steven Cooreman	0:559902e88130	717	}
Steven Cooreman	0:559902e88130	718	if (on)
Steven Cooreman	0:559902e88130	719	{
Steven Cooreman	0:559902e88130	720	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	721	}
Steven Cooreman	0:559902e88130	722	else
Steven Cooreman	0:559902e88130	723	{
Steven Cooreman	0:559902e88130	724	LCD_SegmentSet(com, bit, false);
Steven Cooreman	0:559902e88130	725	}
Steven Cooreman	0:559902e88130	726	}
Steven Cooreman	0:559902e88130	727
Steven Cooreman	0:559902e88130	728
Steven Cooreman	0:559902e88130	729	/************************************************************************//
Steven Cooreman	0:559902e88130	730	* @brief Write hexadecimal number on numeric part on Segment LCD display
Steven Cooreman	0:559902e88130	731	* @param value Numeric value to put on display, in range 0x0000-0xFFFF
Steven Cooreman	0:559902e88130	732	*****************************************************************************/
Steven Cooreman	0:559902e88130	733	void SegmentLCD_UnsignedHex(uint16_t value)
Steven Cooreman	0:559902e88130	734	{
Steven Cooreman	0:559902e88130	735	int num, i, com, bit, digit;
Steven Cooreman	0:559902e88130	736	uint16_t bitpattern;
Steven Cooreman	0:559902e88130	737
Steven Cooreman	0:559902e88130	738	/* Parameter consistancy check */
Steven Cooreman	0:559902e88130	739	if (value >= 0xffff)
Steven Cooreman	0:559902e88130	740	{
Steven Cooreman	0:559902e88130	741	value = 0xffff;
Steven Cooreman	0:559902e88130	742	}
Steven Cooreman	0:559902e88130	743
Steven Cooreman	0:559902e88130	744	/* If an update is in progress we must block, or there might be tearing */
Steven Cooreman	0:559902e88130	745	LCD_SyncBusyDelay(0xFFFFFFFF);
Steven Cooreman	0:559902e88130	746
Steven Cooreman	0:559902e88130	747	/* Freeze updates to avoid partial refresh of display */
Steven Cooreman	0:559902e88130	748	LCD_FreezeEnable(true);
Steven Cooreman	0:559902e88130	749
Steven Cooreman	0:559902e88130	750	/* Turn off all number LCD segments */
Steven Cooreman	0:559902e88130	751	SegmentLCD_NumberOff();
Steven Cooreman	0:559902e88130	752
Steven Cooreman	0:559902e88130	753	for (digit = 0; digit < 4; digit++)
Steven Cooreman	0:559902e88130	754	{
Steven Cooreman	0:559902e88130	755	num = (value >> (4 * digit)) & 0x0f;
Steven Cooreman	0:559902e88130	756	bitpattern = EFM_Numbers[num];
Steven Cooreman	0:559902e88130	757	for (i = 0; i < 7; i++)
Steven Cooreman	0:559902e88130	758	{
Steven Cooreman	0:559902e88130	759	bit = EFM_Display.Number[digit].bit[i];
Steven Cooreman	0:559902e88130	760	com = EFM_Display.Number[digit].com[i];
Steven Cooreman	0:559902e88130	761	if (bitpattern & (1 << i))
Steven Cooreman	0:559902e88130	762	{
Steven Cooreman	0:559902e88130	763	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	764	}
Steven Cooreman	0:559902e88130	765	}
Steven Cooreman	0:559902e88130	766	}
Steven Cooreman	0:559902e88130	767
Steven Cooreman	0:559902e88130	768	/* Sync LCD registers to LE domain */
Steven Cooreman	0:559902e88130	769	LCD_FreezeEnable(false);
Steven Cooreman	0:559902e88130	770	}
Steven Cooreman	0:559902e88130	771
Steven Cooreman	0:559902e88130	772
Steven Cooreman	0:559902e88130	773	/************************************************************************//
Steven Cooreman	0:559902e88130	774	* @brief Write text on LCD display
Steven Cooreman	0:559902e88130	775	* @param string Text string to show on display
Steven Cooreman	0:559902e88130	776	*****************************************************************************/
Steven Cooreman	0:559902e88130	777	void SegmentLCD_Write(char *string)
Steven Cooreman	0:559902e88130	778	{
Steven Cooreman	0:559902e88130	779	int data, length, index;
Steven Cooreman	0:559902e88130	780	uint16_t bitfield;
Steven Cooreman	0:559902e88130	781	uint32_t com, bit;
Steven Cooreman	0:559902e88130	782	int i;
Steven Cooreman	0:559902e88130	783
Steven Cooreman	0:559902e88130	784	length = strlen(string);
Steven Cooreman	0:559902e88130	785	index = 0;
Steven Cooreman	0:559902e88130	786
Steven Cooreman	0:559902e88130	787	/* If an update is in progress we must block, or there might be tearing */
Steven Cooreman	0:559902e88130	788	LCD_SyncBusyDelay(0xFFFFFFFF);
Steven Cooreman	0:559902e88130	789
Steven Cooreman	0:559902e88130	790	/* Freeze LCD to avoid partial updates */
Steven Cooreman	0:559902e88130	791	LCD_FreezeEnable(true);
Steven Cooreman	0:559902e88130	792
Steven Cooreman	0:559902e88130	793	/* Turn all segments off */
Steven Cooreman	0:559902e88130	794	SegmentLCD_AlphaNumberOff();
Steven Cooreman	0:559902e88130	795
Steven Cooreman	0:559902e88130	796	/* Fill out all characters on display */
Steven Cooreman	0:559902e88130	797	for (index = 0; index < 7; index++)
Steven Cooreman	0:559902e88130	798	{
Steven Cooreman	0:559902e88130	799	if (index < length)
Steven Cooreman	0:559902e88130	800	{
Steven Cooreman	0:559902e88130	801	data = (int) *string;
Steven Cooreman	0:559902e88130	802	}
Steven Cooreman	0:559902e88130	803	else /* Padding with space */
Steven Cooreman	0:559902e88130	804	{
Steven Cooreman	0:559902e88130	805	data = 0x20; /* SPACE */
Steven Cooreman	0:559902e88130	806	}
Steven Cooreman	0:559902e88130	807	/* Defined letters currently starts at "SPACE" - ASCII 0x20; */
Steven Cooreman	0:559902e88130	808	data = data - 0x20;
Steven Cooreman	0:559902e88130	809	/* Get font for this letter */
Steven Cooreman	0:559902e88130	810	bitfield = EFM_Alphabet[data];
Steven Cooreman	0:559902e88130	811
Steven Cooreman	0:559902e88130	812	for (i = 0; i < 14; i++)
Steven Cooreman	0:559902e88130	813	{
Steven Cooreman	0:559902e88130	814	bit = EFM_Display.Text[index].bit[i];
Steven Cooreman	0:559902e88130	815	com = EFM_Display.Text[index].com[i];
Steven Cooreman	0:559902e88130	816
Steven Cooreman	0:559902e88130	817	if (bitfield & (1 << i))
Steven Cooreman	0:559902e88130	818	{
Steven Cooreman	0:559902e88130	819	/* Turn on segment */
Steven Cooreman	0:559902e88130	820	LCD_SegmentSet(com, bit, true);
Steven Cooreman	0:559902e88130	821	}
Steven Cooreman	0:559902e88130	822	}
Steven Cooreman	0:559902e88130	823	string++;
Steven Cooreman	0:559902e88130	824	}
Steven Cooreman	0:559902e88130	825	/* Enable update */
Steven Cooreman	0:559902e88130	826	LCD_FreezeEnable(false);
Steven Cooreman	0:559902e88130	827	}

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	17 Mar 2015
Imports:	189
Forks:	1
Commits:	7
Dependents:	10
Dependencies:	0
Followers:	59
Issues:	3

Developers

Silicon Labs

Steven Cooreman