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238 lines
8.3 KiB
C
238 lines
8.3 KiB
C
#include "uc1604c_softspi.h"
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#include <stm32f10x_gpio.h>
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#include <stdint.h>
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#include <stddef.h>
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#define SPI_UC1604C_CTRL SPI2
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#define SPI_UC1604C_APBxClock_FUN RCC_APB1PeriphClockCmd
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#define SPI_UC1604C_CLK RCC_APB1Periph_SPI2
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#define SPI_UC1604C_GPIO_APBxClock_FUN RCC_APB2PeriphClockCmd
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#define SPI_UC1604C_GPIO_CLK RCC_APB2Periph_GPIOD
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#define SPI_UC1604C_GPIO_PORT GPIOD
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//RST
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#define SPI_UC1604C_RST_PIN GPIO_Pin_1
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#define SPI_UC1604C_RST_LOW() GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_RST_PIN)
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#define SPI_UC1604C_RST_HIGH() GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_RST_PIN)
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//DC
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#define SPI_UC1604C_DC_PIN GPIO_Pin_0
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#define SPI_UC1604C_DC_LOW() GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_DC_PIN)
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#define SPI_UC1604C_DC_HIGH() GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_DC_PIN)
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#define SPI_UC1604C_MODE_CMD() SPI_UC1604C_DC_LOW()
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#define SPI_UC1604C_MODE_DAT() SPI_UC1604C_DC_HIGH()
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//CS(NSS)
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#define SPI_UC1604C_CS_PIN GPIO_Pin_2
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#define SPI_UC1604C_CS_LOW() GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_CS_PIN)
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#define SPI_UC1604C_CS_HIGH() GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_CS_PIN)
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#define SPI_UC1604C_CS_ENABLE() SPI_UC1604C_CS_LOW()
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#define SPI_UC1604C_CS_DISABLE() SPI_UC1604C_CS_HIGH()
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//SCLK
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#define SPI_UC1604C_SCLK_PIN GPIO_Pin_4
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#define SPI_UC1604C_SCLK_LOW() GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_SCLK_PIN)
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#define SPI_UC1604C_SCLK_HIGH() GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_SCLK_PIN)
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//MOSI
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#define SPI_UC1604C_MOSI_PIN GPIO_Pin_3
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#define SPI_UC1604C_MOSI_LOW() GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_MOSI_PIN)
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#define SPI_UC1604C_MOSI_HIGH() GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_MOSI_PIN)
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static void UC1604C_InitializeGPIO(void);
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static void UC1604C_WriteByte(uint8_t uiData);
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static void UC1604C_WriteCommand(uint8_t uiCommand);
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void UC1604C_Delay(uint32_t uiDelay)
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{
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/*----------------------------------*/
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/* Variable Declaration */
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/*----------------------------------*/
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uint32_t uiDelayTime;
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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while(uiDelay--)
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{
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uiDelayTime = 1000;
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while(--uiDelayTime);
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}
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_InitializeGPIO. **/
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/** Purpose: Initialize GPIO for SPI Pin. **/
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/** Params: None. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_InitializeGPIO(void)
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{
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// Initialize data structure.
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GPIO_InitTypeDef GPIO_InitStructure;
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// Initialize GPIO.
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SPI_UC1604C_GPIO_APBxClock_FUN(SPI_UC1604C_GPIO_CLK, ENABLE);
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// Enable GPIO.
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GPIO_InitStructure.GPIO_Pin = SPI_UC1604C_RST_PIN|SPI_UC1604C_DC_PIN|SPI_UC1604C_CS_PIN|SPI_UC1604C_SCLK_PIN|SPI_UC1604C_MOSI_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_Init(SPI_UC1604C_GPIO_PORT, &GPIO_InitStructure);
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GPIO_SetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_DC_PIN|SPI_UC1604C_CS_PIN|SPI_UC1604C_SCLK_PIN|SPI_UC1604C_MOSI_PIN);
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GPIO_ResetBits(SPI_UC1604C_GPIO_PORT, SPI_UC1604C_RST_PIN);
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_WriteByte. **/
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/** Purpose: Simulate SPI communication timing to write a byte to **/
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/** LCD controller. **/
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/** Params: **/
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/** @ uiData: Byte will be write. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_WriteByte(uint8_t uiByte)
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{
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/*----------------------------------*/
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/* Variable Declaration */
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/*----------------------------------*/
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uint16_t i;
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uint8_t uiSendByte;
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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uiSendByte = uiByte;
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SPI_UC1604C_CS_LOW();
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for(i=0;i<8;i++)
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{
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if(uiSendByte & 0x80)
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{
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SPI_UC1604C_MOSI_HIGH();
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}
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else
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{
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SPI_UC1604C_MOSI_LOW();
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}
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SPI_UC1604C_SCLK_LOW();
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SPI_UC1604C_SCLK_HIGH();
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uiSendByte <<= 1;
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}
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SPI_UC1604C_CS_HIGH();
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_WriteData. **/
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/** Purpose: Write a data byte to OLED coltroler. **/
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/** Resources: None. **/
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/** Params: **/
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/** @ uiData: One byte data will be write. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_WriteData(uint8_t uiData)
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{
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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SPI_UC1604C_MODE_DAT();
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UC1604C_WriteByte(uiData);
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_WriteCommand. **/
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/** Purpose: Write a command byte to OLED coltroler. **/
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/** Resources: None. **/
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/** Params: **/
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/** @ uiData: One byte command will be write. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_WriteCommand(uint8_t uiCommand)
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{
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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SPI_UC1604C_MODE_CMD();
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UC1604C_WriteByte(uiCommand);
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_SetPosition. **/
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/** Purpose: Set current position of page and colomn. **/
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/** Resources: None. **/
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/** Params: **/
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/** @ uiColumn: Position of column. **/
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/** @ uiPage: Position of page. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_SetPosition(uint8_t uiColumn, uint8_t uiPage)
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{
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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UC1604C_WriteCommand(0xB0 | uiPage);
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UC1604C_WriteCommand(((uiColumn & 0xF0)>>4)|0x10);
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UC1604C_WriteCommand((uiColumn & 0x0F));
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_Fill. **/
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/** Purpose: Fill screen. **/
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/** Params: **/
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/** @ uiByte: Filled data. **/
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/** Return: None. **/
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/*****************************************************************************/
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void UC1604C_Fill(uint8_t uiByte)//全屏填充
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{
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/*----------------------------------*/
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/* Variable Declaration */
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/*----------------------------------*/
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uint8_t uiPage, uiColumn;
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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for(uiPage=0; uiPage<PAGE_MAX; uiPage++)
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{
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UC1604C_WriteCommand(0xB0 | uiPage);
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UC1604C_WriteCommand(0x01);
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UC1604C_WriteCommand(0x10);
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for(uiColumn=0; uiColumn<COLUMN_MAX; uiColumn++)
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{
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UC1604C_WriteData(uiByte);
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}
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}
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}
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/*****************************************************************************/
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/** Function Name: UC1604C_Initialize **/
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/** Purpose: Run the device initialize sequence. **/
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/** Resources: None. **/
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/** Params: None. **/
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/** Return: None. **/
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/** Notice: Initialize sequence must executed after power on 500ms. **/
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/*****************************************************************************/
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void UC1604C_Initialize(void)
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{
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/*----------------------------------*/
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/* Process */
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/*----------------------------------*/
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UC1604C_InitializeGPIO();
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// Reset
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SPI_UC1604C_RST_LOW();
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UC1604C_Delay(100);
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SPI_UC1604C_RST_HIGH();
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UC1604C_Delay(800);
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SPI_UC1604C_CS_ENABLE();
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// Soft reset.
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UC1604C_WriteCommand(0xE2);
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UC1604C_Delay(100);
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// Enable internal boost.
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UC1604C_WriteCommand(0x2F);
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UC1604C_Delay(100);
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UC1604C_WriteCommand(0x81); //微调对比度
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UC1604C_WriteCommand(0x56); //微调对比度的值，可设置范围0x00～0xFF
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UC1604C_WriteCommand(0xEB); //1/9偏压比（bias）
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UC1604C_WriteCommand(0xC2); //行列扫描顺序：从上到下 oxc2
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UC1604C_WriteCommand(0xAF); //开显示
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}
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