lcd: Add support to Holtek HT16K33 as 14-segment display controller
This commit is contained in:
Alan C. Assis
Xiang Xiao
parent
68f19a6290
commit
54134507ff
@ -1451,6 +1451,36 @@ config LCD_ST7032
|
||||
connected to a pull-up resistor and the pin SHLC is connected to
|
||||
the ground. So only I2C pins SDA and SCL are used by NuttX.
|
||||
|
||||
config LCD_HT16K33
|
||||
bool "Holtek HT16K32 4 Digits 14-Segment Display"
|
||||
default n
|
||||
depends on I2C
|
||||
---help---
|
||||
Enable support for Holtek HT16K33 (and Vinka VK16K33) 4 Digits
|
||||
14-Segment module: 0.54" 14-segment LED HT16K32 Backpack.
|
||||
|
||||
if LCD_HT16K33
|
||||
config LCD_HT16K33_MULT_MODULE
|
||||
bool "Enable support to multiple modules as a single display"
|
||||
default n
|
||||
depends on I2C
|
||||
---help---
|
||||
It is possible to connect many HT16K33 modules with sequencial
|
||||
I2C addresses to work as a single display to support lenght
|
||||
text strings. The device at the I2C address 0x70 will display the
|
||||
4 more significant characters, the device 0x71 will display the
|
||||
previous 4 more significant characters and so on.
|
||||
|
||||
config LCD_HT16K33_NUMBER_MODULES
|
||||
int "Quantity of HT16K33 modules to be used as a single display"
|
||||
range 1 8
|
||||
depends on LCD_HT16K33_MULT_MODULE
|
||||
---help---
|
||||
Quantity of sequential modules to be used to create a single
|
||||
display. We can have up to 8 to I2C Addresses: 0x70 - 0x77.
|
||||
|
||||
endif # LCD_HT16K33
|
||||
|
||||
endif # SLCD
|
||||
|
||||
comment "Other LCD-related Devices"
|
||||
|
||||
@ -146,6 +146,10 @@ endif
|
||||
ifeq ($(CONFIG_LCD_ST7032),y)
|
||||
CSRCS += st7032.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_LCD_HT16K33),y)
|
||||
CSRCS += ht16k33_14seg.c
|
||||
endif
|
||||
endif # CONFIG_SLCD
|
||||
|
||||
# Other LCD-related devices
|
||||
|
||||
1153
drivers/lcd/ht16k33_14seg.c
Normal file
1153
drivers/lcd/ht16k33_14seg.c
Normal file
File diff suppressed because it is too large
Load Diff
221
include/nuttx/lcd/ht16k33.h
Normal file
221
include/nuttx/lcd/ht16k33.h
Normal file
@ -0,0 +1,221 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/lcd/ht16k33.h
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_LEDS_HT16K33_H
|
||||
#define __INCLUDE_NUTTX_LEDS_HT16K33_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/fs/ioctl.h>
|
||||
|
||||
/* Configuration
|
||||
* CONFIG_I2C - Enables support for SPI drivers
|
||||
* CONFIG_LCD_HT16K33 - Enables support for the HT16K33 driver
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_I2C) && defined(CONFIG_LCD_HT16K33)
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* HT16K33 Address */
|
||||
|
||||
#define HT16K33_I2C_ADDR 0x70
|
||||
|
||||
/* Default contrast */
|
||||
|
||||
#define DEFAULT_CONTRAST 0xf
|
||||
|
||||
#define HT16K33_CONTRAST_MIN 0
|
||||
#define HT16K33_CONTRAST_MAX 15
|
||||
|
||||
/* HT16K33 register addresses */
|
||||
|
||||
#define HT16K33_DISP_DATA_ADDR 0x00 /* Display Data Address Pointer: 0x00-0x0f */
|
||||
#define HT16K33_SYSTEM_SETUP 0x20 /* System Setup: bit 0 = System Oscilator */
|
||||
#define HT16K33_KEY_DATA_ADDR 0x40 /* Key Data Address Pointer: 0x00-0x07 */
|
||||
#define HT16K33_INT_FLAG_ADDR 0x60 /* INT Flag Address */
|
||||
#define HT16K33_DISPLAY_SETUP 0x80 /* DISPLAY Setup */
|
||||
#define HT16K33_ROW_INT_SET 0xa0 /* ROW/INT set */
|
||||
#define HT16K33_DIMMING_SET 0xe0 /* Dimming set */
|
||||
#define HT16K33_TEST_MODE 0xd9 /* Holtek Test Mode */
|
||||
|
||||
/* Bits and flags definitions */
|
||||
|
||||
#define SYSTEM_SETUP_OSC_ON (1 << 0) /* Turn ON the Oscillator */
|
||||
#define DISPLAY_SETUP_DISP_ON (1 << 0) /* Display ON */
|
||||
#define DISPLAY_SETUP_BLINK_SHIFT 1
|
||||
#define DISPLAY_SETUP_BLINK_MASK (3 << DISPLAY_SETUP_BLINK_SHIFT)
|
||||
# define DISPLAY_SETUP_BLINK_OFF (0 << DISPLAY_SETUP_BLINK_SHIFT)
|
||||
# define DISPLAY_SETUP_BLINK_2HZ (1 << DISPLAY_SETUP_BLINK_SHIFT)
|
||||
# define DISPLAY_SETUP_BLINK_1HZ (2 << DISPLAY_SETUP_BLINK_SHIFT)
|
||||
# define DISPLAY_SETUP_BLINK_0P5HZ (3 << DISPLAY_SETUP_BLINK_SHIFT)
|
||||
#define DIMMING_SHIFT 0
|
||||
#define DIMMING_MASK (0xf << DIMMING_SHIFT)
|
||||
#define DIMMING_DUTY(N) ((N - 1) << DIMMING_SHIFT)
|
||||
|
||||
/* This 14-segment mapping comes from Dave Madison's LED-Segment-ASCII
|
||||
* released under MIT license:
|
||||
* https://github.com/dmadison/LED-Segment-ASCII
|
||||
*/
|
||||
|
||||
static const uint16_t asciito14seg[96] =
|
||||
{
|
||||
0x0000, /* (space) */
|
||||
0x4006, /* ! */
|
||||
0x0202, /* " */
|
||||
0x12ce, /* # */
|
||||
0x12ed, /* $ */
|
||||
0x3fe4, /* % */
|
||||
0x2359, /* & */
|
||||
0x0200, /* ' */
|
||||
0x2400, /* ( */
|
||||
0x0900, /* ) */
|
||||
0x3fc0, /* * */
|
||||
0x12c0, /* + */
|
||||
0x0800, /* , */
|
||||
0x00c0, /* - */
|
||||
0x4000, /* . */
|
||||
0x0c00, /* / */
|
||||
0x0c3f, /* 0 */
|
||||
0x0406, /* 1 */
|
||||
0x00db, /* 2 */
|
||||
0x008f, /* 3 */
|
||||
0x00e6, /* 4 */
|
||||
0x2069, /* 5 */
|
||||
0x00fd, /* 6 */
|
||||
0x0007, /* 7 */
|
||||
0x00ff, /* 8 */
|
||||
0x00ef, /* 9 */
|
||||
0x1200, /* : */
|
||||
0x0a00, /* ; */
|
||||
0x2440, /* < */
|
||||
0x00c8, /* = */
|
||||
0x0980, /* > */
|
||||
0x5083, /* ? */
|
||||
0x02bb, /* @ */
|
||||
0x00f7, /* A */
|
||||
0x128f, /* B */
|
||||
0x0039, /* C */
|
||||
0x120f, /* D */
|
||||
0x0079, /* E */
|
||||
0x0071, /* F */
|
||||
0x00bd, /* G */
|
||||
0x00f6, /* H */
|
||||
0x1209, /* I */
|
||||
0x001e, /* J */
|
||||
0x2470, /* K */
|
||||
0x0038, /* L */
|
||||
0x0536, /* M */
|
||||
0x2136, /* N */
|
||||
0x003f, /* O */
|
||||
0x00f3, /* P */
|
||||
0x203f, /* Q */
|
||||
0x20f3, /* R */
|
||||
0x00ed, /* S */
|
||||
0x1201, /* T */
|
||||
0x003e, /* U */
|
||||
0x0c30, /* V */
|
||||
0x2836, /* W */
|
||||
0x2d00, /* X */
|
||||
0x00ee, /* Y */
|
||||
0x0c09, /* Z */
|
||||
0x0039, /* [ */
|
||||
0x2100, /* \ */
|
||||
0x000f, /* ] */
|
||||
0x2800, /* ^ */
|
||||
0x0008, /* _ */
|
||||
0x0100, /* ` */
|
||||
0x1058, /* a */
|
||||
0x2078, /* b */
|
||||
0x00d8, /* c */
|
||||
0x088e, /* d */
|
||||
0x0858, /* e */
|
||||
0x14c0, /* f */
|
||||
0x048e, /* g */
|
||||
0x1070, /* h */
|
||||
0x1000, /* i */
|
||||
0x0a10, /* j */
|
||||
0x3600, /* k */
|
||||
0x0030, /* l */
|
||||
0x10d4, /* m */
|
||||
0x1050, /* n */
|
||||
0x00dc, /* o */
|
||||
0x0170, /* p */
|
||||
0x0486, /* q */
|
||||
0x0050, /* r */
|
||||
0x2088, /* s */
|
||||
0x0078, /* t */
|
||||
0x001c, /* u */
|
||||
0x0810, /* v */
|
||||
0x2814, /* w */
|
||||
0x2d00, /* x */
|
||||
0x028e, /* y */
|
||||
0x0848, /* z */
|
||||
0x0949, /* { */
|
||||
0x1200, /* | */
|
||||
0x2489, /* } */
|
||||
0x0cc0, /* ~ */
|
||||
0x0000, /* (del) */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: ht16k33_register
|
||||
*
|
||||
* Description:
|
||||
* Initialize the HT16K33 device as a LEDS interface.
|
||||
*
|
||||
* Input Parameters:
|
||||
* spi - An instance of the SPI interface to use to communicate
|
||||
* with the HT16K33.
|
||||
* devno - Device number to identify current display.
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno value on failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
struct i2c_master_s; /* Forward reference */
|
||||
|
||||
int ht16k33_register(int devno, FAR struct i2c_master_s *i2c);
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_I2C && CONFIG_HT16K33 */
|
||||
#endif /* __INCLUDE_NUTTX_LEDS_HT16K33_H */
|
||||
Loading…
x
Reference in New Issue
Block a user