📄 osram128x64x4.c
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//*****************************************************************************
//
// osram128x64x4.c - Driver for the OSRAM 128x64x4 graphical OLED display.
//
// Copyright (c) 2006-2007 Luminary Micro, Inc. All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. Any use in violation
// of the foregoing restrictions may subject the user to criminal sanctions
// under applicable laws, as well as to civil liability for the breach of the
// terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1234-conf of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************
//*****************************************************************************
//
//! \addtogroup ek_lm3sx965_api
//! @{
//
//*****************************************************************************
#include "../../hw_ssi.h"
#include "../../hw_memmap.h"
#include "../../hw_sysctl.h"
#include "../../hw_types.h"
#include "../../src/debug.h"
#include "../../src/gpio.h"
#include "../../src/ssi.h"
#include "../../src/sysctl.h"
#include "osram128x64x4.h"
//*****************************************************************************
//
// Define the OSRAM 128x64x4 Remap Setting(s). This will be used in
// several places in the code to switch between vertical and horizontal
// address incrementing.
//
// The Remap Command (0xA0) takes one 8-bit parameter. The parameter is
// defined as follows.
//
// Bit 7: Reserved
// Bit 6: Disable(0)/Enable(1) COM Split Odd Even
// When enabled, the COM signals are split Odd on one side, even on
// the other. Otherwise, they are split 0-39 on one side, 40-79 on
// the other.
// Bit 5: Reserved
// Bit 4: Disable(0)/Enable(1) COM Remap
// When Enabled, ROW 0-79 map to COM 79-0 (i.e. reverse row order)
// Bit 3: Reserved
// Bit 2: Horizontal(0)/Vertical(1) Address Increment
// When set, data RAM address will increment along the column rather
// than along the row.
// Bit 1: Disable(0)/Enable(1) Nibble Remap
// When enabled, the upper and lower nibbles in the DATA bus for access
// to the data RAM are swapped.
// Bit 0: Disable(0)/Enable(1) Column Address Remap
// When enabled, DATA RAM columns 0-63 are remapped to Segment Columns
// 127-0.
//
//*****************************************************************************
#ifndef OSRAM_180
#define OSRAM_INIT_REMAP 0x52
#define OSRAM_INIT_OFFSET 0x4C
static const unsigned char g_pucOSRAM128x64x4VerticalInc[] = {0xA0, 0x56};
static const unsigned char g_pucOSRAM128x64x4HorizontalInc[] = {0xA0, 0x52};
#else
#define OSRAM_INIT_REMAP 0x41
#define OSRAM_INIT_OFFSET 0x42
static const unsigned char g_pucOSRAM128x64x4VerticalInc[] = {0xA0, 0x45};
static const unsigned char g_pucOSRAM128x64x4HorizontalInc[] = {0xA0, 0x41};
#endif
//*****************************************************************************
//
// A 5x7 font (in a 6x8 cell, where the sixth column is omitted from this
// table) for displaying text on the OLED display. The data is organized as
// bytes from the left column to the right column, with each byte containing
// the top row in the LSB and the bottom row in the MSB.
//
//*****************************************************************************
static const unsigned char g_pucFont[96][5] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // " "
{ 0x00, 0x00, 0x4f, 0x00, 0x00 }, // !
{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
{ 0x23, 0x13, 0x08, 0x64, 0x62 }, // %
{ 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, 0x50, 0x30, 0x00, 0x00 }, // ,
{ 0x08, 0x08, 0x08, 0x08, 0x08 }, // -
{ 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, 0x79, 0x41, 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 }, // [
{ 0x02, 0x04, 0x08, 0x10, 0x20 }, // "\"
{ 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 }, // }
{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
};
//*****************************************************************************
//
// The sequence of commands used to initialize the SSD0303 controller. Each
// command is described as follows: there is a byte specifying the number of
// bytes in the command sequence, followed by that many bytes of command data.
// Note: This initialization sequence is derived from OSRAM App Note AN018.
//
//*****************************************************************************
static const unsigned char g_pucOSRAM128x64x4Init[] =
{
//
// Column Address
//
4, 0x15, 0, 63, 0xe3,
//
// Row Address
//
4, 0x75, 0, 63, 0xe3,
//
// Contrast Control
//
3, 0x81, 50, 0xe3,
//
// Half Current Range
//
2, 0x85, 0xe3,
//
// Display Re-map
//
3, 0xA0, OSRAM_INIT_REMAP, 0xe3,
//
// Display Start Line
//
3, 0xA1, 0, 0xe3,
//
// Display Offset
//
3, 0xA2, OSRAM_INIT_OFFSET, 0xe3,
//
// Display Mode Normal
//
2, 0xA4, 0xe3,
//
// Multiplex Ratio
//
3, 0xA8, 63, 0xe3,
//
// Phase Length
//
3, 0xB1, 0x22, 0xe3,
//
// Row Period
//
3, 0xB2, 70, 0xe3,
//
// Display Clock Divide
//
3, 0xB3, 0xF1, 0xe3,
//
// VSL
//
3, 0xBF, 0x0D, 0xe3,
//
// VCOMH
//
3, 0xBE, 0x02, 0xe3,
//
// VP
//
3, 0xBC, 0x10, 0xe3,
//
// Gamma
//
10, 0xB8, 0x01, 0x11, 0x22, 0x32, 0x43, 0x54, 0x65, 0x76, 0xe3,
//
// Set DC-DC
3, 0xAD, 0x03, 0xe3,
//
// Display ON/OFF
//
2, 0xAF, 0xe3,
};
//*****************************************************************************
//
//! \internal
//!
//! Write a sequence of command bytes to the SSD0323 controller.
//!
//! The data is written in a polled fashion; this function will not return
//! until the entire byte sequence has been written to the controller.
//!
//! \return None.
//
//*****************************************************************************
static void
OSRAMWriteCommand(const unsigned char *pucBuffer, unsigned long ulCount)
{
unsigned long ulTemp;
//
// Clear the command/control bit to enable command mode.
//
GPIOPinWrite(GPIO_PORTC_BASE, GPIO_PIN_7, 0);
//
// Loop while there are more bytes left to be transferred.
//
while(ulCount != 0)
{
//
// Write the next byte to the controller.
//
SSIDataPut(SSI0_BASE, *pucBuffer++);
//
// Dummy read to drain the fifo and time the GPIO signal.
//
SSIDataGet(SSI0_BASE, &ulTemp);
//
// Decrement the BYTE counter.
//
ulCount--;
}
}
//*****************************************************************************
//
//! \internal
//!
//! Write a sequence of data bytes to the SSD0323 controller.
//!
//! The data is written in a polled fashion; this function will not return
//! until the entire byte sequence has been written to the controller.
//!
//! \return None.
//
//*****************************************************************************
static void
OSRAMWriteData(const unsigned char *pucBuffer, unsigned long ulCount)
{
unsigned long ulTemp;
//
// Set the command/control bit to enable data mode.
//
GPIOPinWrite(GPIO_PORTC_BASE, GPIO_PIN_7, GPIO_PIN_7);
//
// Loop while there are more bytes left to be transferred.
//
while(ulCount != 0)
{
//
// Write the next byte to the controller.
//
SSIDataPut(SSI0_BASE, *pucBuffer++);
//
// Dummy read to drain the fifo and time the GPIO signal.
//
SSIDataGet(SSI0_BASE, &ulTemp);
//
// Decrement the BYTE counter.
//
ulCount--;
}
}
//*****************************************************************************
//
//! Clears the OLED display.
//!
//! This function will clear the display RAM. All pixels in the display will
//! be turned off.
//!
//! This function is contained in <tt>osram128x64x4.c</tt>, with
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
//! applications.
//!
//! \return None.
//
//*****************************************************************************
void
OSRAM128x64x4Clear(void)
{
static const unsigned char pucCommand1[] = { 0x15, 0, 63 };
static const unsigned char pucCommand2[] = { 0x75, 0, 79 };
unsigned long ulRow, ulColumn;
static unsigned char pucZeroBuffer[8] = {0,0,0,0,0,0,0,0};
//
// Set the window to fill the entire display.
//
OSRAMWriteCommand(pucCommand1, sizeof(pucCommand1));
OSRAMWriteCommand(pucCommand2, sizeof(pucCommand2));
OSRAMWriteCommand(g_pucOSRAM128x64x4VerticalInc,
sizeof(g_pucOSRAM128x64x4VerticalInc));
//
// In vertical address increment mode, loop through each column, filling
// each row with 0.
//
for(ulColumn = 0; ulColumn < (128/2); ulColumn++)
{
//
// 8 rows (bytes) per row of text.
//
for(ulRow = 0; ulRow < 80; ulRow += 8)
{
OSRAMWriteData(pucZeroBuffer, sizeof(pucZeroBuffer));
}
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