nuttx/drivers/lcd/st7565.h

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/****************************************************************************
* drivers/lcd/st7565.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.
*
****************************************************************************/
/* Definitions for the ST7565 128x64 Dot Matrix LCD
* Driver with C
*
* References:
* SSD1305.pdf, "Solomon Systech SSD1305 136x64 Dot Matrix OLED/PLED
* Segment/Common Driver with Controller," Solomon Systech Limited,
* http://www.solomon-systech.com, May, 2008.
*/
#ifndef __DRIVERS_LCD_ST7565_H
#define __DRIVERS_LCD_ST7565_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Fundamental Commands *****************************************************/
#define ST7565_DISPOFF 0xae /* 0xae: Display OFF (sleep mode) */
#define ST7565_DISPON 0xaf /* 0xaf: Display ON in normal mode */
#define ST7565_SETSTARTLINE 0x40 /* 0x40-7f: Set display start line */
# define ST7565_STARTLINE_MASK 0x3f
#define ST7565_SETPAGESTART 0xb0 /* 0xb0-b7: Set page start address */
# define ST7565_PAGESTART_MASK 0x0f
#define ST7565_SETCOLL 0x00 /* 0x00-0x0f: Set lower column address */
# define ST7565_COLL_MASK 0x0f
#define ST7565_SETCOLH 0x10 /* 0x10-0x1f: Set higher column address */
# define ST7565_COLH_MASK 0x0f
#define ST7565_ADCNORMAL 0xa0 /* 0xa6: ADC Normal */
#define ST7565_ADCINVERSE 0xa1 /* 0xa7: ADC Inverse */
#define ST7565_DISPNORMAL 0xa6 /* 0xa6: Normal display */
#define ST7565_DISPINVERSE 0xa7 /* 0xa7: Inverse display */
#define ST7565_DISPRAM 0xa4 /* 0xa4: Resume to RAM content display */
#define ST7565_DISPENTIRE 0xa5 /* 0xa5: Entire display ON */
#define ST7565_BIAS_1_9 0xa2 /* 0xa2: Select BIAS setting 1/9 */
#define ST7565_BIAS_1_7 0xa3 /* 0xa3: Select BIAS setting 1/7 */
#define ST7565_ENTER_RMWMODE 0xe0 /* 0xe0: Enter the Read Modify Write mode */
#define ST7565_EXIT_RMWMODE 0xee /* 0xee: Leave the Read Modify Write mode */
#define ST7565_EXIT_SOFTRST 0xe2 /* 0xe2: Software RESET */
#define ST7565_SETCOMNORMAL 0xc0 /* 0xc0: Set COM output direction, normal mode */
#define ST7565_SETCOMREVERSE 0xc8 /* 0xc8: Set COM output direction, reverse mode */
#define ST7565_POWERCTRL_EXT 0x28 /* 0x28: Only the external power supply is used */
#define ST7565_POWERCTRL_VF 0x29 /* 0x29: Only the V/F circuit is used */
#define ST7565_POWERCTRL_VR 0x2b /* 0x2b: Only the voltage regulator circuit and the
* voltage follower circuit are used
*/
#define ST7565_POWERCTRL_B 0x2c /* 0x2c: Booster=ON */
#define ST7565_POWERCTRL_BR 0x2e /* 0x2e: Booster=ON V/R=ON */
#define ST7565_POWERCTRL_INT 0x2f /* 0x2f: Only the internal power supply is used */
/* Regulation Resistior ratio V0 = (1+Rb/Ra)*Vev */
#define ST7565_REG_RES_3_0 0x20 /* (Ra/Rb = 3.0) */
#define ST7565_REG_RES_3_5 0x21 /* (Ra/Rb = 5.5) */
#define ST7565_REG_RES_4_0 0x22 /* (Ra/Rb = 4.0) */
#define ST7565_REG_RES_4_5 0x23 /* (Ra/Rb = 4.5) */
#define ST7565_REG_RES_5_0 0x24 /* (Ra/Rb = 5.0) */
#define ST7565_REG_RES_5_5 0x25 /* (Ra/Rb = 5.5) */
#define ST7565_REG_RES_6_0 0x26 /* (Ra/Rb = 6.0) */
#define ST7565_REG_RES_6_5 0x27 /* (Ra/Rb = 6.5) */
/* Set Electronic volume mode */
#define ST7565_SETEVMODE 0x81 /* 0x81: Set contrast control */
/* Set Ev value register
* ratio Vev = (1-a/162)*Vreg, Vreg = 2.1V
*/
#define ST7565_SETEVREG(x) (0x0 | ((x) & 0x3F))
/* Set booster ratio */
#define ST7565_MODE_NORMAL 0xac /* Set Normal Mode */
#define ST7565_MODE_SLEEP 0xad /* Set Sleep Mode */
/* Set booster ratio */
#define ST7565_SETBOOSTER 0xf8
#define ST7565_SETBOOSTER4X 0x00 /* x2, x3, x4 */
#define ST7565_SETBOOSTER5X 0x01 /* x5 */
#define ST7565_SETBOOSTER6X 0x02 /* x6 */
#define ST7565_NOP 0xe3 /* 0xe3: NOP Command for no operation */
/****************************************************************************
* Public Data
****************************************************************************/
#endif /* __DRIVERS_LCD_ST7565_H */