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Changeset - 7476de768f19

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Ethan Zonca - 10 years ago 2014-07-10 23:02:21
ez@ethanzonca.com

Refactor of oled driver

4 files changed with 114 insertions and 133 deletions:

libraries/oleddrv/bsp.h

main.c

ssd1306.c

ssd1306.h

0 comments (0 inline, 0 general)

libraries/oleddrv/bsp.h

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 #ifndef BSP_H
 #define BSP_H
 /**
   IO Connection map
        SSD1303
   Vcc   1  2  Gnd
 D1/Data 3  4  D0/Clk
     D3  5  6  D2
     D5  7  8  D4
     D7  9 10  D6
     WR 11 12  RD
    RES 13 14  A0  (1-data,0-command)
    CS  15 16  C86 (1-8080, 0-SPI)
        STM32
   D0/Clk    PB13/SPI2 Clk
   D1/Data   PB15/SPI2 MOSI
   RES       PB12
   A0        PB14
   CS        Gnd
   D2~D7     (Float)
   WR        (Float)
   RD        (Float)
  */
 //#define   SSD_Clk         GPIOA,GPIO_Pin_5
 //#define   SSD_Data        GPIOA,GPIO_Pin_7
 #define   SSD_Reset       GPIOB,GPIO_Pin_2
 #define   SSD_A0          GPIOB,GPIO_Pin_10
 #define   SSD_CS          GPIOB,GPIO_Pin_1
 //#define   SSD_Clk_Low()     GPIO_ResetBits(GPIOA, GPIO_Pin_3)
 //#define   SSD_Clk_High()    GPIO_SetBits(GPIOA, GPIO_Pin_5)
 //#define   SSD_Data_Low()    GPIO_ResetBits(GPIOA, GPIO_Pin_7)
 //#define   SSD_Data_High()   GPIO_SetBits(GPIOA, GPIO_Pin_7)
 #define   SSD_Reset_Low()   GPIO_ResetBits(GPIOB, GPIO_Pin_2)
 #define   SSD_Reset_High()  GPIO_SetBits(GPIOB, GPIO_Pin_2)
 #define   SSD_A0_Low()      GPIO_ResetBits(GPIOB, GPIO_Pin_10)
 #define   SSD_A0_High()     GPIO_SetBits(GPIOB, GPIO_Pin_10)
 #define   SSD_CS_Low()      GPIO_ResetBits(GPIOB, GPIO_Pin_1)
 #define   SSD_CS_High()     GPIO_SetBits(GPIOB, GPIO_Pin_1)
 // Use stdperiph
 #define   SPI_SendByte(data)  SPI_I2S_SendData(SPI1,data)
 #define   SPI_Wait()       while(!(SPI1->SR&SPI_I2S_FLAG_TXE));while(SPI1->SR&SPI_I2S_FLAG_BSY);
 #define   SSD1303_FPS                   50
 #define   IsLedOn()       (!(GPIOA->ODR & GPIO_Pin_8))
 #define   LED_ON()        GPIOA->BRR = GPIO_Pin_8
 #define   LED_OFF()       GPIOA->BSRR = GPIO_Pin_8
 #define   ToggleLED()     if(GPIOA->ODR & GPIO_Pin_8){GPIOA->BRR = GPIO_Pin_8;}\
                           else{GPIOA->BSRR = GPIO_Pin_8;}
 #define   GSel1_High()    GPIOB->BSRR = GPIO_Pin_9
 #define   GSel1_Low()     GPIOB->BRR = GPIO_Pin_9
 #define   MMA_SLEEP()     GPIOB->BRR = GPIO_Pin_11
 #define   MMA_WAKEUP()    GPIOB->BSRR = GPIO_Pin_11
 #define   Is_MMA_WAKEUP() (GPIOB->ODR & GPIO_Pin_11)
 #define   DMA_SSD_1303    DMA1_Channel5
 #define   DMA_Handler_SSD_1303    DMA1_Channel5_IRQHandler
 #define   DMA_SSD_1306    DMA1_Channel5
 #define   DMA_Handler_SSD_1306    DMA1_Channel5_IRQHandler
 #define   Is_Enc_Key_Down()    (!(GPIOA->IDR & GPIO_Pin_0))
 #endif

main.c

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 #include "main.h"
 #include "stm32l100c_discovery.h"
 #include "ssd1306.h"
 #define LED_POWER GPIOB,GPIO_Pin_9
 #define LED_STAT  GPIOA,GPIO_Pin_15
 static __IO uint32_t TimingDelay;
 void init_gpio();
 void init_spi();
 /* Main */
 int main(void)
+{
-    // Hopefully init clocks
+    // Init clocks
     SystemInit();
     RCC_ClocksTypeDef RCC_Clocks;
     //SysTick end of count event each 1ms
     RCC_GetClocksFreq(&RCC_Clocks);
     SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);
     GPIO_ResetBits(LED_STAT);
     Delay(100);
     init_gpio();
     init_spi();
-    //SSD1302_Init();
+    //ssd1306_Init();
     //SSD1303_DrawPoint(3,3,1);
     //SSD1303_DrawPoint(5,5,0);
     GPIO_SetBits(LED_POWER);
     Delay(500);
     GPIO_ResetBits(LED_POWER);
     while(1)
+    {
         /* Turn on LD0 Blue LED during 1s each time User button is pressed */
         //STM_EVAL_LEDOn(LED4);
         GPIO_SetBits(LED_POWER);
         //STM_EVAL_LEDOn(LED3);
         /* wait for 1s */
         Delay(150);
         /* Turn off LD4 Blue LED after 1s each time User button is pressed */
         //STM_EVAL_LEDOff(LED4);
         GPIO_ResetBits(LED_POWER);
         Delay(150);
+    }
+}
 /**
   * @brief  Inserts a delay time.
   * @param  nTime: specifies the delay time length, in 1 ms.
   * @retval None
   */
 void Delay(__IO uint32_t nTime)
+{
   TimingDelay = nTime;
   while(TimingDelay != 0);
+}
 /**
   * @brief  Decrements the TimingDelay variable.
   * @param  None
   * @retval None
   */
 void TimingDelay_Decrement(void)
+{
   if (TimingDelay != 0x00)
+  {
     TimingDelay--;
+  }
+}
 void init_spi(void) {
 void init_spi(void)
+{
     SPI_InitTypeDef  SPI_InitStructure;
     // OLED IC
     SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
     SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
     SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
     SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
     SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
     SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
     SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
     SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
     SPI_InitStructure.SPI_CRCPolynomial = 7;
     SPI_Init(SPI1, &SPI_InitStructure);
     SPI_Cmd(SPI1, ENABLE);           /* Enable the SPI  */
     // MAX IC
     SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
     SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
     SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
     SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
     SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
     SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
     SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
     SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
     SPI_InitStructure.SPI_CRCPolynomial = 7;
     SPI_Init(SPI2, &SPI_InitStructure);
     SPI_Cmd(SPI2, ENABLE);           /* Enable the SPI */
+}
 void init_gpio(void) {
  GPIO_InitTypeDef GPIO_InitStruct;
   /** Configure pins as
         * Analog
         * Input
         * Output
         * EVENT_OUT
         * EXTI
   */
   /*Enable or disable the APB peripheral clock */
   // Enable SPI clocks
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
   RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
   // Enable GPIO clocks
   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC|RCC_AHBPeriph_GPIOB|RCC_AHBPeriph_GPIOA, ENABLE);
   // Enable DMA clocks (Is AHB even the right thing???)
   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); // EMZ TODO get the right ones
   /*Configure GPIO pin : PC */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13;
   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOC, &GPIO_InitStruct);
   /*Configure GPIO pin : PB */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_10|GPIO_Pin_12
                           |GPIO_Pin_9;
   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOB, &GPIO_InitStruct);
   /*Configure GPIO pin : PA */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_15;
   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOA, &GPIO_InitStruct);
   /*Configure GPIO pin : PB */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6
                           |GPIO_Pin_7;
   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_Init(GPIOB, &GPIO_InitStruct);
   /** SPI1 GPIO Configuration
   PA5   ------> SPI1_SCK
   PA7   ------> SPI1_MOSI
   */
   /*Enable or disable the AHB peripheral clock */
   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
   /*Configure GPIO pin : PA */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_7;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOA, &GPIO_InitStruct);
   /*Configure GPIO pin alternate function */
   GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_SPI1);
   /*Configure GPIO pin alternate function */
   GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_SPI1);
   /** SPI2 GPIO Configuration
   PB13   ------> SPI2_SCK
   PB14   ------> SPI2_MISO
   PB15   ------> SPI2_MOSI
   */
   /*Enable or disable the AHB peripheral clock */
   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
   /*Configure GPIO pin : PB */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOB, &GPIO_InitStruct);
   /*Configure GPIO pin alternate function */
   GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2);
   /*Configure GPIO pin alternate function */
   GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2);
   /*Configure GPIO pin alternate function */
   GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2);
   /** USB GPIO Configuration
   PA11   ------> USB_DM
   PA12   ------> USB_DP
   */
   /*Enable or disable the AHB peripheral clock */
   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
   /*Configure GPIO pin : PA */
   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_11|GPIO_Pin_12;
   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
   GPIO_Init(GPIOA, &GPIO_InitStruct);
+}
 #ifdef  USE_FULL_ASSERT
 /**
   * @brief  Reports the name of the source file and the source line number
   *   where the assert_param error has occurred.
   * @param  file: pointer to the source file name
   * @param  line: assert_param error line source number
   * @retval None
   */
 void assert_failed(uint8_t* file, uint32_t line)
+{
   /* User can add his own implementation to report the file name and line number,
      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
   /* Infinite loop */
   while (1)
   {}
+}
 #endif
 // vim:softtabstop=4 shiftwidth=4 expandtab

ssd1306.c

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 /*******************************************************************************
-* File Name          : SSD1303.c
+* File Name          : ssd1306.c
 * Author             : lxyppc
 * Version            : V1.0
 * Date               : 10-01-21
 * Description        : SSD1303 operations
 *                      the SSH1101A is compatible with SSD1303
 * Description        : ssd1306 operations
 *                      the SSH1101A is compatible with ssd1306
 *******************************************************************************/
 /* Includes ------------------------------------------------------------------*/
 #include "stm32l100c_discovery.h"
 #include "bsp.h"
 #include "ssd1306.h"
 #include "DrawText.h"
 /* Private typedef -----------------------------------------------------------*/
 /* Private define ------------------------------------------------------------*/
 #define   SSD1303_PAGE_NUMBER           8
 #define   SSD1303_COLUMN_NUMBER         128
 #define   SSD1303_COLUMN_MARGIN_START   2
 #define   SSD1303_COLUMN_MARGIN_END     2
 #define   SSD1303_X_PIXEL   128
 #define   SSD1303_Y_PIXEL   64
 #define   SSD1306_PAGE_NUMBER           8
 #define   SSD1306_COLUMN_NUMBER         128
 #define   SSD1306_COLUMN_MARGIN_START   2
 #define   SSD1306_COLUMN_MARGIN_END     2
 #define   SSD1306_X_PIXEL   128
 #define   SSD1306_Y_PIXEL   64
 /* Private macro -------------------------------------------------------------*/
-#define   SSD1303_Buffer    (_SSD1303_Buffer + SSD1303_COLUMN_MARGIN_START)
+#define   ssd1306_Buffer    (_SSD1306_Buffer + SSD1306_COLUMN_MARGIN_START)
 /* Private variables ---------------------------------------------------------*/
-static  uint8_t  _SSD1303_Buffer[SSD1303_COLUMN_NUMBER*SSD1303_PAGE_NUMBER + SSD1303_COLUMN_MARGIN_START + SSD1303_COLUMN_MARGIN_END] = {0};
+static  uint8_t  _SSD1306_Buffer[SSD1306_COLUMN_NUMBER*SSD1306_PAGE_NUMBER + SSD1306_COLUMN_MARGIN_START + SSD1306_COLUMN_MARGIN_END] = {0};
 static  uint8_t  pageIndex = 0;
 static  uint8_t  iS_SSD_On = 0;
 static  uint8_t  pre_on = 0;
 static  uint8_t  curContrast = 0xCC;
 static  uint8_t  lastContrast = 0xCC;
 /* Private function prototypes -----------------------------------------------*/
 void  WriteCommand(unsigned char command);
 void  WriteData(unsigned char data);
 void  OnPageTransferDone(void);
 unsigned long SSD1303_OFF(void);
 unsigned long SSD1303_ON(void);
 unsigned char* SSD1303_GetBuffer()
 unsigned long ssd1306_OFF(void);
 unsigned long ssd1306_ON(void);
 unsigned char* ssd1306_GetBuffer()
+{
-  return SSD1303_Buffer;
+  return ssd1306_Buffer;
+}
 /*******************************************************************************
 * Function Name  : WriteCommand
-* Description    : Write command to the SSD1303
+* Description    : Write command to the ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
 void WriteCommand(unsigned char command)
+{
   SSD_A0_Low();
   SPI_SendByte(command);
   SPI_Wait();
+}
 /*******************************************************************************
 * Function Name  : WriteData
-* Description    : Write data to the SSD1303
+* Description    : Write data to the ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
 void WriteData(unsigned char data)
+{
   SSD_A0_High();
   SPI_SendByte(data);
   SPI_Wait();
+}
 /*******************************************************************************
 * Function Name  : SSD1303_Init
 * Description    : Initialize the SSD1303
 * Function Name  : ssd1306_Init
 * Description    : Initialize the ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-void SSD1303_Init(void)
+void ssd1306_Init(void)
+{
   /* Generate a reset */
   SSD_Reset_Low();
   uint32_t i;
   for(i=5000; i>1; i--)
   SSD_Reset_High();
   /*************************************************
-  // SSD1303 Initialization Command
+  // ssd1306 Initialization Command
   *************************************************/
   // Lower Column Address
   WriteCommand(0x00); /* Set Lower Column Address */
   GPIO_SetBits(GPIOA,GPIO_Pin_15);
   // High Column Address
   WriteCommand(0x10); /* Set Higher Column Address*/
   // Display Start Line
   WriteCommand(0x40); /* Set Display Start Line */
 #ifdef    DEBUG_BOARD
   curContrast = lastContrast = 0x30;
 #else
   curContrast = lastContrast = 0xCF;
 #endif
   // Contrast Control Register
   WriteCommand(0x81); /* Set Contrast Control */
   WriteCommand(lastContrast); /* 0 ~ 255 0x1f*/
   // Re-map
   WriteCommand(0xA1); /* [A0]:column address 0 is map
   to SEG0 , [A1]: columnaddress 131 is map to SEG0*/
   // Entire Display ON/OFF
   WriteCommand(0xA4); /* A4=ON */
   // Normal or Inverse Display
   WriteCommand(0XA6); /* Normal Display*/
   // Multiplex Ratio
   WriteCommand(0xA8); /* Set Multiplex Ratio */
   WriteCommand(0x3f); /* Set to 36 Mux*/
   // Set DC-DC
   WriteCommand(0xAD); /* Set DC-DC */
   WriteCommand(0x8B); /* 8B=ON, 8A=Off */
   // Display ON/OFF
   WriteCommand(0xAE); /* AF=ON , AE=OFF*/
   // Display Offset
   WriteCommand(0xD3); /* Set Display Offset */
   WriteCommand(0x00); /* No offset */
   // Display Clock Divide
   WriteCommand(0xD5); /* Set Clock Divide */
   WriteCommand(0x20); /* Set to 80Hz */
   // Area Color Mode
   WriteCommand(0xD8); /* Set Area Color On or Off*/
   WriteCommand(0x00); /* Mono Mode */
   // COM Pins Hardware Configuration
   WriteCommand(0xDA); /* Set Pins HardwareConfiguration */
   WriteCommand(0x12);
   // VCOMH
   WriteCommand(0xDB); /* Set VCOMH */
   WriteCommand(0x00);
   // VP
   WriteCommand(0xD9); /* Set VP */
   WriteCommand(0x22); /* P1=2 , P2=2 */
   // Set Common output scan direction
   WriteCommand(0xc8);/* Set COM scan direction */
   // For SSD1306 Set the address mode
   WriteCommand(0x20);/* Set address mode */
   WriteCommand(0x00);/* Set address mode horizontal */
   // Set the page start address
   WriteCommand(0xb0);
   WriteCommand(0x00);
   WriteCommand(0x10);
   /* Turn on the controller */
-  pre_on = SSD1303_ON();
+  pre_on = ssd1306_ON();
 //  // Set Charge pump
 //  WriteCommand(0x8D); /* Set Charge pump */
 //  WriteCommand(0x14); /* 0x14=ON, 0x10=Off */
 //
 //  // Turn on the display
 //  WriteCommand(0xaf);
+}
 /*******************************************************************************
 * Function Name  : SSD1303_TurnOff
 * Description    : Turn off the SSD1303 controller
 * Function Name  : ssd1306_TurnOff
 * Description    : Turn off the ssd1306 controller
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_TurnOff(void)
+unsigned long ssd1306_TurnOff(void)
+{
   pre_on = 0;
   return iS_SSD_On;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_TurnOn
 * Description    : Turn off the SSD1303 controller
 * Function Name  : ssd1306_TurnOn
 * Description    : Turn off the ssd1306 controller
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_TurnOn(void)
+unsigned long ssd1306_TurnOn(void)
+{
   pre_on = 1;
   return iS_SSD_On;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_SetContrast
 * Description    : Set the SSD1303 contrast
 * Function Name  : ssd1306_SetContrast
 * Description    : Set the ssd1306 contrast
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned char SSD1303_SetContrast(unsigned char contrast)
+unsigned char ssd1306_SetContrast(unsigned char contrast)
+{
   curContrast = contrast;
   return lastContrast;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_GetContrast
 * Description    : Get the SSD1303 contrast
 * Function Name  : ssd1306_GetContrast
 * Description    : Get the ssd1306 contrast
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned char SSD1303_GetContrast()
+unsigned char ssd1306_GetContrast()
+{
   return lastContrast;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_OFF
 * Description    : Turn off the SSD1303 controller
 * Function Name  : ssd1306_OFF
 * Description    : Turn off the ssd1306 controller
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_OFF(void)
+unsigned long ssd1306_OFF(void)
+{
   if(iS_SSD_On){
 #ifdef  DEBUG_UI
     uint32_t i = 0;
     for(i=0;i<SSD1303_COLUMN_NUMBER*SSD1303_PAGE_NUMBER;i++){
       SSD1303_Buffer[i] = 0;
     for(i=0;i<ssd1306_COLUMN_NUMBER*SSD1306_PAGE_NUMBER;i++){
       ssd1306_Buffer[i] = 0;
+    }
 #else
     // Turn off the display
     WriteCommand(0xae);
     // Set Charge pump
     WriteCommand(0x8D); /* Set Charge pump */
     WriteCommand(0x10); /* 0x14=ON, 0x10=Off */
 #endif
     iS_SSD_On = 0;
+  }
   return iS_SSD_On;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_ON
 * Description    : Turn on the SSD1303 controller
 * Function Name  : ssd1306_ON
 * Description    : Turn on the ssd1306 controller
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_ON(void)
+unsigned long ssd1306_ON(void)
+{
   if(!iS_SSD_On){
 #ifdef  DEBUG_UI
 #else
   #ifdef    DEBUG_BOARD
   #else
     // Set Charge pump
     WriteCommand(0x8D); /* Set Charge pump */
     WriteCommand(0x14); /* 0x14=ON, 0x10=Off */
   #endif
     // Turn on the display
     WriteCommand(0xaf);
 #endif
     iS_SSD_On = 1;
+  }
   return iS_SSD_On;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_IsOn
 * Description    : Check whether the SSD1303 is on or off
 * Function Name  : ssd1306_IsOn
 * Description    : Check whether the ssd1306 is on or off
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_IsOn(void)
+unsigned long ssd1306_IsOn(void)
+{
   return iS_SSD_On;
+}
 /*******************************************************************************
 * Function Name  : OnPageTransferDone
 * Description    : Called when each page transfer done
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
 void  OnPageTransferDone(void)
+{
-  if(pageIndex == SSD1303_PAGE_NUMBER){
+  if(pageIndex == SSD1306_PAGE_NUMBER){
     pageIndex = 0;
     return;
+  }
 #ifdef    DEBUG_BOARD
   WriteCommand(0xb0 + pageIndex);
   if(pageIndex == 0){
     WriteCommand(0x00);
     WriteCommand(0x10);
+  }
   SSD_A0_High();
   DMA1_Channel5->CCR &= ((uint32_t)0xFFFFFFFE);
   DMA1_Channel5->CNDTR = SSD1303_COLUMN_NUMBER+SSD1303_COLUMN_MARGIN_START + SSD1303_COLUMN_MARGIN_END;
   DMA1_Channel5->CMAR = (uint32_t)(SSD1303_Buffer+SSD1303_COLUMN_NUMBER*pageIndex - SSD1303_COLUMN_MARGIN_START);
   DMA_SSD_1303->CCR |= ((uint32_t)0x00000001);
   DMA1_Channel5->CNDTR = ssd1306_COLUMN_NUMBER+SSD1306_COLUMN_MARGIN_START + SSD1306_COLUMN_MARGIN_END;
   DMA1_Channel5->CMAR = (uint32_t)(ssd1306_Buffer+SSD1306_COLUMN_NUMBER*pageIndex - SSD1306_COLUMN_MARGIN_START);
   DMA_SSD_1306->CCR |= ((uint32_t)0x00000001);
   pageIndex++;
 #else
   SSD_A0_High();
   DMA_SSD_1303->CCR &= ((uint32_t)0xFFFFFFFE);
   DMA_SSD_1303->CNDTR = SSD1303_COLUMN_NUMBER*SSD1303_PAGE_NUMBER;//+SSD1303_COLUMN_MARGIN_START + SSD1303_COLUMN_MARGIN_END;
   DMA_SSD_1303->CMAR = (uint32_t)(SSD1303_Buffer);//+SSD1303_COLUMN_NUMBER*pageIndex);
   //DMA_Cmd(DMA_SSD_1303, ENABLE);
   DMA_SSD_1303->CCR |= ((uint32_t)0x00000001);
   DMA_SSD_1306->CCR &= ((uint32_t)0xFFFFFFFE);
   DMA_SSD_1306->CNDTR = SSD1306_COLUMN_NUMBER*SSD1306_PAGE_NUMBER;//+SSD1306_COLUMN_MARGIN_START + SSD1306_COLUMN_MARGIN_END;
   DMA_SSD_1306->CMAR = (uint32_t)(ssd1306_Buffer);//+SSD1306_COLUMN_NUMBER*pageIndex);
   //DMA_Cmd(DMA_SSD_1306, ENABLE);
   DMA_SSD_1306->CCR |= ((uint32_t)0x00000001);
 //  pageIndex++;
-  pageIndex = SSD1303_PAGE_NUMBER;
+  pageIndex = SSD1306_PAGE_NUMBER;
 #endif
+}
 /*******************************************************************************
 * Function Name  : DMA1_Channel5_IRQHandler
 * Description    : This function handles DMA1 Channel 5 interrupt request.
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-void DMA_Handler_SSD_1303(void) //DMA1_Channel5_IRQHandler(void)
+void DMA_Handler_SSD_1306(void) //DMA1_Channel5_IRQHandler(void)
+{
   if(DMA_GetITStatus(DMA1_IT_TC5)){
     DMA_ClearITPendingBit(DMA1_IT_GL5);
     OnPageTransferDone();
+  }
+}
 /*******************************************************************************
 * Function Name  : StartPageTransfer
 * Description    : Start a new page transfer
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
 void StartPageTransfer(void)
+{
   pageIndex = 0;
   if(pre_on){
     if(iS_SSD_On == 0){
-      pre_on = SSD1303_ON();
+      pre_on = ssd1306_ON();
+    }
   }else{
     if(iS_SSD_On){
-      pre_on = SSD1303_OFF();
+      pre_on = ssd1306_OFF();
+    }
+  }
   if( curContrast != lastContrast ){
     lastContrast = curContrast;
     WriteCommand(0x81); /* Set Contrast Control */
     WriteCommand(lastContrast); /* 0 ~ 255 0x1f*/
+  }
   if(iS_SSD_On){
     OnPageTransferDone();
+  }
+}
 /*******************************************************************************
   Display related functions
  ******************************************************************************/
 /*******************************************************************************
 * Function Name  : SSD1303_DrawBlock
 * Description    : Draw a block with specify data to SSD1303
 * Function Name  : ssd1306_DrawBlock
 * Description    : Draw a block with specify data to ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_DrawBlock(
+unsigned long ssd1306_DrawBlock(
   Pos_t x,
   Pos_t y,
   Pos_t cx,
   Pos_t cy,
   const unsigned char* data)
+{
   if(x >= SSD1303_X_PIXEL)return 0;
   if(y >= SSD1303_Y_PIXEL)return 0;
   if(x+cx > SSD1303_X_PIXEL ) cx = SSD1303_X_PIXEL - x ;
   if(y+cy > SSD1303_Y_PIXEL ) cy = SSD1303_Y_PIXEL - y ;
   unsigned char* pStart = SSD1303_Buffer + (y/8)*SSD1303_COLUMN_NUMBER + x;
   if(x >= SSD1306_X_PIXEL)return 0;
   if(y >= SSD1306_Y_PIXEL)return 0;
   if(x+cx > SSD1306_X_PIXEL ) cx = SSD1306_X_PIXEL - x ;
   if(y+cy > SSD1306_Y_PIXEL ) cy = SSD1306_Y_PIXEL - y ;
   unsigned char* pStart = ssd1306_Buffer + (y/8)*SSD1306_COLUMN_NUMBER + x;
   unsigned char offset1 = y%8;
   unsigned char offset2 = (cy+y)%8;
   if(data){
     unsigned char mask1 = (1<<offset1)-1;
     unsigned char mask2 = ~((1<<offset2)-1);
     cy = (cy+offset1)/8;
     Pos_t i = 0;
     for(i=0;i<cx;i++){
       Pos_t j = 0;
       unsigned short tmp = *pStart & mask1;
       for(;j<cy;j++){
         tmp |= (((unsigned short)data[j*cx])<<offset1);
-        *(pStart + j*SSD1303_COLUMN_NUMBER) = tmp;
+        *(pStart + j*SSD1306_COLUMN_NUMBER) = tmp;
         tmp>>=8;
+      }
       if(offset2){
         tmp |= ((((unsigned short)data[j*cx])<<offset1) & (~mask2))
             | *(pStart + j*SSD1303_COLUMN_NUMBER) & mask2;
         *(pStart + j*SSD1303_COLUMN_NUMBER) = tmp;
             | *(pStart + j*SSD1306_COLUMN_NUMBER) & mask2;
         *(pStart + j*SSD1306_COLUMN_NUMBER) = tmp;
+      }
       data++;
       pStart++;
+    }
   }else{
     unsigned char mask1 = ~((1<<offset1)-1);
     unsigned char mask2 = ((1<<offset2)-1);
     cy = (cy+offset1)/8;
     Pos_t i = 0;
     for(i=0;i<cx;i++){
       Pos_t j = 1;
       *pStart ^= mask1;
       for(;j<cy;j++){
-        *(pStart + j*SSD1303_COLUMN_NUMBER) ^= 0xFF;
+        *(pStart + j*SSD1306_COLUMN_NUMBER) ^= 0xFF;
+      }
       if(offset2){
-        *(pStart + j*SSD1303_COLUMN_NUMBER) ^= mask2;
+        *(pStart + j*SSD1306_COLUMN_NUMBER) ^= mask2;
+      }
       pStart++;
+    }
+  }
 //  if(!offset){
 //    for(Pos_t i=0;i<cx;i++){
 //      unsigned char tmp;
 //      Pos_t j = 0;
 //      for(;j<cy/8;j++){
 //        tmp = data[i+j*cx];
-//        *(pStart + j*SSD1303_COLUMN_NUMBER + i + x) = tmp;
+//        *(pStart + j*ssd1306_COLUMN_NUMBER + i + x) = tmp;
 //      }
 //      if(cy&0x7){
 //        unsigned char mask1 = (1<<(cy&7)) - 1;
 //        unsigned char mask2 = 0xFF - mask1;
 //        tmp = (data[i+j*cx] & mask1)
 //            | (*(pStart + j*SSD1303_COLUMN_NUMBER + i + x) & mask2);
 //        *(pStart + j*SSD1303_COLUMN_NUMBER + i + x) = tmp;
 //            | (*(pStart + j*ssd1306_COLUMN_NUMBER + i + x) & mask2);
 //        *(pStart + j*ssd1306_COLUMN_NUMBER + i + x) = tmp;
 //      }
 //    }
 //  }else{
 //    for(Pos_t i=0;i<cx;i++){
 //      unsigned short tmp;
 //      for(Pos_t j=0;j<cy/8;j++){
 //        if(j == 0){
 //          // First line
-//          tmp = *(pStart + j*SSD1303_COLUMN_NUMBER + i + x) & mask;
+//          tmp = *(pStart + j*ssd1306_COLUMN_NUMBER + i + x) & mask;
 //        }
 //        tmp |= (((unsigned short)data[i+j*cx])<<offset);
-//        *(pStart + j*SSD1303_COLUMN_NUMBER + i + x) = tmp;
+//        *(pStart + j*ssd1306_COLUMN_NUMBER + i + x) = tmp;
 //        tmp>>=8;
 //        if(j == (cy/8)-1){
 //          // Last line
 //          *(pStart + (j+1)*SSD1303_COLUMN_NUMBER + i + x) &= ~mask;
 //          *(pStart + (j+1)*SSD1303_COLUMN_NUMBER + i + x) |= tmp;
 //          *(pStart + (j+1)*ssd1306_COLUMN_NUMBER + i + x) &= ~mask;
 //          *(pStart + (j+1)*ssd1306_COLUMN_NUMBER + i + x) |= tmp;
 //        }
 //      }
 //    }
 //  }
   return 0;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_DrawPoint
 * Description    : Draw a point with specify data to SSD1303
 * Function Name  : ssd1306_DrawPoint
 * Description    : Draw a point with specify data to ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_DrawPoint(
+unsigned long ssd1306_DrawPoint(
   Pos_t x,
   Pos_t y,
   Color_t color)
+{
   if(x >= SSD1303_X_PIXEL)return 0;
   if(y >= SSD1303_Y_PIXEL)return 0;
   unsigned char* pStart = SSD1303_Buffer + (y/8)*SSD1303_COLUMN_NUMBER + x;
   if(x >= SSD1306_X_PIXEL)return 0;
   if(y >= SSD1306_Y_PIXEL)return 0;
   unsigned char* pStart = ssd1306_Buffer + (y/8)*SSD1306_COLUMN_NUMBER + x;
   unsigned char mask = 1<<(y%8);
   if(color){
     *pStart |= mask;
   }else{
     *pStart &= ~mask;
+  }
   return 0;
+}
 /*******************************************************************************
 * Function Name  : SSD1303_ReadPoint
 * Description    : Read a point from SSD1303
 * Function Name  : ssd1306_ReadPoint
 * Description    : Read a point from ssd1306
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-unsigned long SSD1303_ReadPoint(
+unsigned long ssd1306_ReadPoint(
   Pos_t x,
   Pos_t y)
+{
-  unsigned char* pStart = SSD1303_Buffer + (y/8)*SSD1303_COLUMN_NUMBER + x;
+  unsigned char* pStart = ssd1306_Buffer + (y/8)*SSD1306_COLUMN_NUMBER + x;
   unsigned char mask = 1<<(y%8);
   return *pStart&mask ? 1 : 0;
+}
 /*******************************************************************************
-* Function Name  : SSD1303_ClearScreen
+* Function Name  : ssd1306_ClearScreen
 * Description    : Clear the screen contents
 * Input          : None
 * Output         : None
 * Return         : None
 *******************************************************************************/
-void  SSD1303_FillScreen(Color_t color)
+void  ssd1306_FillScreen(Color_t color)
+{
   unsigned char mask = color ? 0xFF : 0;
   unsigned long i = 0;
   for(i=0;i<SSD1303_COLUMN_NUMBER*SSD1303_PAGE_NUMBER;i++){
     SSD1303_Buffer[i] = mask;
   for(i=0;i<SSD1306_COLUMN_NUMBER*SSD1306_PAGE_NUMBER;i++){
     ssd1306_Buffer[i] = mask;
+  }
+}
-const DeviceProp  SSD1303_Prop =
+const DeviceProp  ssd1306_Prop =
+{
   .pfnDrawBlok = SSD1303_DrawBlock,
   .pfnDrawPoint = SSD1303_DrawPoint,
   .pfnDrawBlok = ssd1306_DrawBlock,
   .pfnDrawPoint = ssd1306_DrawPoint,
   .xPixel = 128,
   .yPixel = 64,
 };

ssd1306.h

➞

Show inline comments

 #ifndef   SSD1303_H
 #define   SSD1303_H
 #ifndef   ssd1306_H
 #define   ssd1306_H
 #include "DrawText.h"
-void  SSD1303_Init(void);
+void  ssd1306_Init(void);
 void  StartPageTransfer(void);
 extern  const DeviceProp  SSD1303_Prop;
 unsigned long SSD1303_DrawBlock(Pos_t x, Pos_t y, Pos_t cx, Pos_t cy, const unsigned char* data);
 unsigned long SSD1303_IsOn(void);
 unsigned long SSD1303_TurnOff(void);
 unsigned long SSD1303_TurnOn(void);
 unsigned char SSD1303_SetContrast(unsigned char contrast);
 unsigned char SSD1303_GetContrast();
 unsigned char* SSD1303_GetBuffer();
 unsigned long SSD1303_DrawPoint(Pos_t x, Pos_t y, Color_t color);
 extern  const DeviceProp  ssd1306_Prop;
 unsigned long ssd1306_DrawBlock(Pos_t x, Pos_t y, Pos_t cx, Pos_t cy, const unsigned char* data);
 unsigned long ssd1306_IsOn(void);
 unsigned long ssd1306_TurnOff(void);
 unsigned long ssd1306_TurnOn(void);
 unsigned char ssd1306_SetContrast(unsigned char contrast);
 unsigned char ssd1306_GetContrast();
 unsigned char* ssd1306_GetBuffer();
 unsigned long ssd1306_DrawPoint(Pos_t x, Pos_t y, Color_t color);
 #endif

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