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lcd5110.c
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lcd5110.c
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/*
Copyright (C) 2013 Marcin Jokel
Licensed 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.
*/
/**
* @file lcd5110.c
* @brief Nokia 5110 LCD interface module through SPI code.
*
* @addtogroup lcd5110
* @{
*/
#include "ch.h"
#include "hal.h"
#include "lcd5110.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
const uint8_t Fonts8x5 [][LCD5110_FONT_X_SIZE] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00 }, /* space */
{ 0x00, 0x00, 0x2f, 0x00, 0x00 }, /* ! */
{ 0x00, 0x07, 0x00, 0x07, 0x00 }, /* " */
{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, /* # */
{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, /* $ */
{ 0xc4, 0xc8, 0x10, 0x26, 0x46 }, /* % */
{ 0x36, 0x49, 0x55, 0x22, 0x50 }, /* & */
{ 0x00, 0x05, 0x03, 0x00, 0x00 }, /* ' */
{ 0x00, 0x1c, 0x22, 0x41, 0x00 }, /* ( */
{ 0x00, 0x41, 0x22, 0x1c, 0x00 }, /* ) */
{ 0x14, 0x08, 0x3E, 0x08, 0x14 }, /* * */
{ 0x08, 0x08, 0x3E, 0x08, 0x08 }, /* + */
{ 0x00, 0x00, 0x50, 0x30, 0x00 }, /* , */
{ 0x10, 0x10, 0x10, 0x10, 0x10 }, /* - */
{ 0x00, 0x60, 0x60, 0x00, 0x00 }, /* . */
{ 0x20, 0x10, 0x08, 0x04, 0x02 }, /* / */
{ 0x3E, 0x51, 0x49, 0x45, 0x3E }, /* 0 */
{ 0x00, 0x42, 0x7F, 0x40, 0x00 }, /* 1 */
{ 0x42, 0x61, 0x51, 0x49, 0x46 }, /* 2 */
{ 0x21, 0x41, 0x45, 0x4B, 0x31 }, /* 3 */
{ 0x18, 0x14, 0x12, 0x7F, 0x10 }, /* 4 */
{ 0x27, 0x45, 0x45, 0x45, 0x39 }, /* 5 */
{ 0x3C, 0x4A, 0x49, 0x49, 0x30 }, /* 6 */
{ 0x01, 0x71, 0x09, 0x05, 0x03 }, /* 7 */
{ 0x36, 0x49, 0x49, 0x49, 0x36 }, /* 8 */
{ 0x06, 0x49, 0x49, 0x29, 0x1E }, /* 9 */
{ 0x00, 0x36, 0x36, 0x00, 0x00 }, /* : */
{ 0x00, 0x56, 0x36, 0x00, 0x00 }, /* ; */
{ 0x08, 0x14, 0x22, 0x41, 0x00 }, /* < */
{ 0x14, 0x14, 0x14, 0x14, 0x14 }, /* = */
{ 0x00, 0x41, 0x22, 0x14, 0x08 }, /* > */
{ 0x02, 0x01, 0x51, 0x09, 0x06 }, /* ? */
{ 0x32, 0x49, 0x59, 0x51, 0x3E }, /* @ */
{ 0x7E, 0x11, 0x11, 0x11, 0x7E }, /* A */
{ 0x7F, 0x49, 0x49, 0x49, 0x36 }, /* B */
{ 0x3E, 0x41, 0x41, 0x41, 0x22 }, /* C */
{ 0x7F, 0x41, 0x41, 0x22, 0x1C }, /* D */
{ 0x7F, 0x49, 0x49, 0x49, 0x41 }, /* E */
{ 0x7F, 0x09, 0x09, 0x09, 0x01 }, /* F */
{ 0x3E, 0x41, 0x49, 0x49, 0x7A }, /* G */
{ 0x7F, 0x08, 0x08, 0x08, 0x7F }, /* H */
{ 0x00, 0x41, 0x7F, 0x41, 0x00 }, /* I */
{ 0x20, 0x40, 0x41, 0x3F, 0x01 }, /* J */
{ 0x7F, 0x08, 0x14, 0x22, 0x41 }, /* K */
{ 0x7F, 0x40, 0x40, 0x40, 0x40 }, /* L */
{ 0x7F, 0x02, 0x0C, 0x02, 0x7F }, /* M */
{ 0x7F, 0x04, 0x08, 0x10, 0x7F }, /* N */
{ 0x3E, 0x41, 0x41, 0x41, 0x3E }, /* O */
{ 0x7F, 0x09, 0x09, 0x09, 0x06 }, /* P */
{ 0x3E, 0x41, 0x51, 0x21, 0x5E }, /* Q */
{ 0x7F, 0x09, 0x19, 0x29, 0x46 }, /* R */
{ 0x46, 0x49, 0x49, 0x49, 0x31 }, /* S */
{ 0x01, 0x01, 0x7F, 0x01, 0x01 }, /* T */
{ 0x3F, 0x40, 0x40, 0x40, 0x3F }, /* U */
{ 0x1F, 0x20, 0x40, 0x20, 0x1F }, /* V */
{ 0x3F, 0x40, 0x38, 0x40, 0x3F }, /* W */
{ 0x63, 0x14, 0x08, 0x14, 0x63 }, /* X */
{ 0x07, 0x08, 0x70, 0x08, 0x07 }, /* Y */
{ 0x61, 0x51, 0x49, 0x45, 0x43 }, /* Z */
{ 0x00, 0x7F, 0x41, 0x41, 0x00 }, /* [ */
{ 0x55, 0x2A, 0x55, 0x2A, 0x55 }, /* \ */
{ 0x00, 0x41, 0x41, 0x7F, 0x00 }, /* ] */
{ 0x04, 0x02, 0x01, 0x02, 0x04 }, /* ^ */
{ 0x40, 0x40, 0x40, 0x40, 0x40 }, /* _ */
{ 0x00, 0x01, 0x02, 0x04, 0x00 }, /* ' */
{ 0x20, 0x54, 0x54, 0x54, 0x78 }, /* a */
{ 0x7F, 0x48, 0x44, 0x44, 0x38 }, /* b */
{ 0x38, 0x44, 0x44, 0x44, 0x20 }, /* c */
{ 0x38, 0x44, 0x44, 0x48, 0x7F }, /* d */
{ 0x38, 0x54, 0x54, 0x54, 0x18 }, /* e */
{ 0x08, 0x7E, 0x09, 0x01, 0x02 }, /* f */
{ 0x0C, 0x52, 0x52, 0x52, 0x3E }, /* g */
{ 0x7F, 0x08, 0x04, 0x04, 0x78 }, /* h */
{ 0x00, 0x44, 0x7D, 0x40, 0x00 }, /* i */
{ 0x20, 0x40, 0x44, 0x3D, 0x00 }, /* j */
{ 0x7F, 0x10, 0x28, 0x44, 0x00 }, /* k */
{ 0x00, 0x41, 0x7F, 0x40, 0x00 }, /* l */
{ 0x7C, 0x04, 0x18, 0x04, 0x78 }, /* m */
{ 0x7C, 0x08, 0x04, 0x04, 0x78 }, /* n */
{ 0x38, 0x44, 0x44, 0x44, 0x38 }, /* o */
{ 0x7C, 0x14, 0x14, 0x14, 0x08 }, /* p */
{ 0x08, 0x14, 0x14, 0x18, 0x7C }, /* q */
{ 0x7C, 0x08, 0x04, 0x04, 0x08 }, /* r */
{ 0x48, 0x54, 0x54, 0x54, 0x20 }, /* s */
{ 0x04, 0x3F, 0x44, 0x40, 0x20 }, /* t */
{ 0x3C, 0x40, 0x40, 0x20, 0x7C }, /* u */
{ 0x1C, 0x20, 0x40, 0x20, 0x1C }, /* v */
{ 0x3C, 0x40, 0x30, 0x40, 0x3C }, /* w */
{ 0x44, 0x28, 0x10, 0x28, 0x44 }, /* x */
{ 0x0C, 0x50, 0x50, 0x50, 0x3C }, /* y */
{ 0x44, 0x64, 0x54, 0x4C, 0x44 }, /* z */
{ 0x00, 0x08, 0x36, 0x41, 0x00 }, /* { */
{ 0x00, 0x00, 0x7F, 0x00, 0x00 }, /* | */
{ 0x00, 0x41, 0x36, 0x08, 0x00 }, /* } */
};
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief LCD driver initialization.
* @pre The SPI interface must be initialized and the driver started.
*
* @param[in] spip pointer to the SPI interface
*
*/
void lcd5110InitI(SPIDriver *spip) {
/* Reset LCD */
palClearPad(LCD5110_RES_PORT, LCD5110_RES_PIN);
chThdSleepMilliseconds(15);
palSetPad(LCD5110_RES_PORT, LCD5110_RES_PIN);
chThdSleepMilliseconds(15);
/* Send configuration commands to LCD */
lcd5110WriteByteI(spip, 0x21, LCD5110_SEND_CMD); /* LCD extended commands */
lcd5110WriteByteI(spip, 0x06, LCD5110_SEND_CMD);
lcd5110WriteByteI(spip, 0x14, LCD5110_SEND_CMD);
lcd5110WriteByteI(spip, 0xbf, LCD5110_SEND_CMD);
lcd5110WriteByteI(spip, 0x0c, LCD5110_SEND_CMD);
lcd5110WriteByteI(spip, 0x20, LCD5110_SEND_CMD);
lcd5110WriteByteI(spip, 0x0c, LCD5110_SEND_CMD);
lcd5110ClearI(spip); /* Clear LCD */
}
/**
* @brief Write byte to LCD driver.
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] data data to write
* @param[in] cd select between command or data
*/
void lcd5110WriteByteI(SPIDriver *spip, uint8_t data, uint8_t cd) {
spiSelect(spip);
if(cd == LCD5110_SEND_DATA) {
palSetPad(LCD5110_DC_PORT, LCD5110_DC_PIN);
}
else {
palClearPad(LCD5110_DC_PORT, LCD5110_DC_PIN);
}
spiSend(spip, 1, &data); // change to normal spi send
spiUnselect(spip);
}
/**
* @brief Clear LCD
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
*/
void lcd5110ClearI(SPIDriver *spip) { // ok
uint32_t i, j;
for (i = 0; i < LCD5110_Y_RES/LCD5110_FONT_Y_SIZE; i++) {
lcd5110SetPosXYI(spip, 0, i);
for (j = 0; j < LCD5110_X_RES; j++)
lcd5110WriteByteI(spip, 0x00, LCD5110_SEND_DATA);
}
}
/**
* @brief Set position
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] x column address in LCD DDRAM, 0 to 83
* @param[in] y page address in LCD DDRAM, 0 to 5
*/
void lcd5110SetPosXYI(SPIDriver *spip, uint8_t x, uint8_t y) {
if (y > LCD5110_Y_RES/LCD5110_FONT_Y_SIZE) return;
if (x > LCD5110_X_RES) return;
lcd5110WriteByteI(spip, 0x80 | x, LCD5110_SEND_CMD); /* Set x position */
lcd5110WriteByteI(spip, 0x40 | y, LCD5110_SEND_CMD); /* Set y position */
}
/**
* @brief Write char
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] ch char
*/
void lcd5110WriteCharI(SPIDriver *spip, uint8_t ch) {
uint8_t i;
for ( i = 0; i < LCD5110_FONT_X_SIZE; i++ ){
lcd5110WriteByteI(spip, Fonts8x5[ch - 32][i], LCD5110_SEND_DATA);
}
}
/**
* @brief Set LCD contrast.
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] contrast LCD contrast value
*/
void lcd5110ContrastI (SPIDriver *spip, uint8_t contrast) {
lcd5110WriteByteI(spip, 0x21, LCD5110_SEND_CMD); /* LCD Extended Commands */
lcd5110WriteByteI(spip, 0x80 | contrast, LCD5110_SEND_CMD); /* Set LCD Vop (Contrast) */
lcd5110WriteByteI(spip, 0x20, LCD5110_SEND_CMD); /* LCD Standard Commands, horizontal addressing mode */
}
/**
* @brief Write text
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] strp pointer to text
*/
void lcd5110WriteTextI(SPIDriver *spip, const char * strp) {
while ( *strp ) {
lcd5110WriteCharI(spip, (uint8_t )*strp);
strp++;
}
}
/**
* @brief Rotate text
* @pre The LCD driver must be initialized.
*
* @param[in] spip pointer to the SPI interface
* @param[in] strp pointer to text
* @param[in] offset text offset
*/
void lcd5110RotateTextI(SPIDriver *spip, const uint8_t * strp, uint8_t offset) {
uint8_t i;
uint8_t n;
uint8_t m;
for(n = 0; strp[n] != '\0'; n++); /* Count number of char */
if (offset >= n)
return;
for (i = 0; i < LCD5110_X_RES/LCD5110_FONT_X_SIZE; i++) {
m = i + offset;
if ( m < n)
lcd5110WriteCharI(spip, strp[m]);
else
lcd5110WriteCharI(spip, strp[m - n]);
}
}
/** @} */