21ic电子技术开发论坛 › 单片机与嵌入式系统 › ST MCU › 【NUCLEO- H563ZI 测评】3.SPI+OLED
返回列表 发新帖我要提问

[STM32H5] 【NUCLEO- H563ZI 测评】3.SPI+OLED

[复制链接]
 楼主| 穿西装的强子 发表于 2023-7-22 10:19 | 显示全部楼层 |阅读模式
<
spi, OLED
本帖最后由 穿西装的强子 于 2023-7-22 10:27 编辑

SPI硬件接口使用SPI1，PA5-SCK,PB5-MOSI,PD14-CS,PD15-DC,PF3-REST，因为不需要读取，所以MISO不需要用。
222222.bmp
SPI软件配置，使用了2线的只发接口，SPI_DIRECTION_2LINES_TXONLY，分频为32分频=250M/32=7.8125MHz，速度太快屏幕受不了 - -！。
复制
  1. static void MX_SPI1_Init(void)
    

  2. {
    


  3. 

  4.   /* USER CODE END SPI1_Init 1 */
    

  5.   /* SPI1 parameter configuration*/
    

  6.   hspi1.Instance = SPI1;
    

  7.   hspi1.Init.Mode = SPI_MODE_MASTER;
    

  8.   hspi1.Init.Direction = SPI_DIRECTION_2LINES_TXONLY;
    

  9.   hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
    

  10.   hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
    

  11.   hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
    

  12.   hspi1.Init.NSS = SPI_NSS_SOFT;
    

  13.   hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;
    

  14.   hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
    

  15.   hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
    

  16.   hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
    

  17.   hspi1.Init.CRCPolynomial = 0x7;
    

  18.   hspi1.Init.NSSPMode = SPI_NSS_PULSE_DISABLE;
    

  19.   hspi1.Init.NSSPolarity = SPI_NSS_POLARITY_LOW;
    

  20.   hspi1.Init.FifoThreshold = SPI_FIFO_THRESHOLD_01DATA;
    

  21.   hspi1.Init.MasterSSIdleness = SPI_MASTER_SS_IDLENESS_00CYCLE;
    

  22.   hspi1.Init.MasterInterDataIdleness = SPI_MASTER_INTERDATA_IDLENESS_00CYCLE;
    

  23.   hspi1.Init.MasterReceiverAutoSusp = SPI_MASTER_RX_AUTOSUSP_DISABLE;
    

  24.   hspi1.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_DISABLE;
    

  25.   hspi1.Init.IOSwap = SPI_IO_SWAP_DISABLE;
    

  26.   hspi1.Init.ReadyMasterManagement = SPI_RDY_MASTER_MANAGEMENT_INTERNALLY;
    

  27.   hspi1.Init.ReadyPolarity = SPI_RDY_POLARITY_HIGH;
    

  28.   if (HAL_SPI_Init(&hspi1) != HAL_OK)
    

  29.   {
    

  30.     Error_Handler();
    

  31.   }
    

  32.   /* USER CODE BEGIN SPI1_Init 2 */
    


  33. 

  34.   /* USER CODE END SPI1_Init 2 */
    


  35. 

  36. }/**
    

  37. * [url=home.php?mod=space&uid=247401]@brief[/url] SPI MSP Initialization
    

  38. * This function configures the hardware resources used in this example
    

  39. * @param hspi: SPI handle pointer
    

  40. * @retval None
    

  41. */
    

  42. void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
    

  43. {
    

  44.   GPIO_InitTypeDef GPIO_InitStruct = {0};
    

  45.   RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
    

  46.   if(hspi->Instance==SPI1)
    

  47.   {
    

  48.   /* USER CODE BEGIN SPI1_MspInit 0 */
    


  49. 

  50.   /* USER CODE END SPI1_MspInit 0 */
    


  51. 

  52.   /** Initializes the peripherals clock
    

  53.   */
    

  54.     PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SPI1;
    

  55.     PeriphClkInitStruct.Spi1ClockSelection = RCC_SPI1CLKSOURCE_PLL1Q;
    

  56.     if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
    

  57.     {
    

  58.       Error_Handler();
    

  59.     }
    


  60. 

  61.     /* Peripheral clock enable */
    

  62.     __HAL_RCC_SPI1_CLK_ENABLE();
    


  63. 

  64.     __HAL_RCC_GPIOA_CLK_ENABLE();
    

  65.         __HAL_RCC_GPIOB_CLK_ENABLE();
    

  66.     /**SPI1 GPIO Configuration
    

  67.     PA5     ------> SPI1_SCK
    

  68.     PA6     ------> SPI1_MISO
    

  69.     PB5     ------> SPI1_MOSI
    

  70.     */
    

  71.     GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6;
    

  72.     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    

  73.     GPIO_InitStruct.Pull = GPIO_NOPULL;
    

  74.     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    

  75.     GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
    

  76.     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    


  77. 

  78.     GPIO_InitStruct.Pin = GPIO_PIN_5;
    

  79.     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    

  80.     GPIO_InitStruct.Pull = GPIO_PULLDOWN;
    

  81.     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    

  82.     GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
    

  83.     HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
    


  84. 

  85.     /* SPI1 interrupt Init */
    

  86.     HAL_NVIC_SetPriority(SPI1_IRQn, 0, 0);
    

  87.     HAL_NVIC_EnableIRQ(SPI1_IRQn);
    

  88.   /* USER CODE BEGIN SPI1_MspInit 1 */
    


  89. 

  90.   /* USER CODE END SPI1_MspInit 1 */
    

  91.   }
    


  92. 

  93. }
SPI发送函数处理，发送后等待发送标值结束，并且增加超时功能，若5000次循环都没有完成，则结束本次等待。
复制
  1. void SPI1_SEND(uint8_t *data,uint8_t len)
    

  2. {
    

  3. int32_t cnt;
    

  4. uint8_t rx[2] = {1};
    

  5. HAL_SPI_TransmitReceive_IT(&hspi1, data, rx, len);
    

  6. cnt = 5000;
    

  7. while (wTransferState == TRANSFER_WAIT && cnt-->0);
    

  8. wTransferState = TRANSFER_WAIT;
    

  9. }
OLED的GPIO初始化
复制

  1. 

  2. void DevOLED_GPIO_Init(void)
    

  3. {
    

  4.   GPIO_InitTypeDef GPIO_InitStruct = {0};
    

  5.   /* GPIO Ports Clock Enable */
    

  6.   __HAL_RCC_GPIOD_CLK_ENABLE();
    

  7.   __HAL_RCC_GPIOF_CLK_ENABLE();
    


  8. 

  9. //  /*Configure GPIO pin Output Level */
    

  10. //  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_14, GPIO_PIN_RESET);
    


  11. 

  12. //  /*Configure GPIO pin Output Level */
    

  13. //  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_15, GPIO_PIN_RESET);
    


  14. 

  15. //  /*Configure GPIO pin Output Level */
    

  16. //  HAL_GPIO_WritePin(GPIOF, GPIO_PIN_3, GPIO_PIN_RESET);
    


  17. 

  18.   GPIO_InitStruct.Pin = GPIO_PIN_14;
    

  19.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    

  20.   GPIO_InitStruct.Pull = GPIO_NOPULL;
    

  21.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    

  22.   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
    

  23.   GPIO_InitStruct.Pin = GPIO_PIN_15;
    

  24.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    

  25.   GPIO_InitStruct.Pull = GPIO_NOPULL;
    

  26.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    

  27.   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
    


  28. 


  29. 

  30.   /*Configure GPIO pin : LED3_Pin */
    

  31.   GPIO_InitStruct.Pin = GPIO_PIN_3;
    

  32.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    

  33.   GPIO_InitStruct.Pull = GPIO_NOPULL;
    

  34.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    

  35.   HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
    


  36. 

  37. }
OLED配置，其它的如何移植就不在赘述了，都很简单，
复制
  1. void DevOLED_Init(void)
    

  2. {
    

  3.         DevOLED_GPIO_Init();
    

  4.     //SPI
    

  5.     RST_H;  //SPI RST
    

  6.     HAL_Delay(100);
    

  7.     RST_L;
    

  8.     HAL_Delay(100);
    

  9.     RST_H;
    

  10.         HAL_Delay(100);
    

  11.     DevOLED_WRByte(0xAE,OLED_CMD);//--turn off oled panel
    

  12.     DevOLED_WRByte(0x00,OLED_CMD);//---set low column address
    

  13.     DevOLED_WRByte(0x10,OLED_CMD);//---set high column address
    

  14.     DevOLED_WRByte(0x40,OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
    

  15.     DevOLED_WRByte(0x81,OLED_CMD);//--set contrast control register
    

  16.     DevOLED_WRByte(0xCF,OLED_CMD); // Set SEG Output Current Brightness
    

  17.     DevOLED_WRByte(0xA1,OLED_CMD);//--Set SEG/Column Mapping     0xa0×óÓÒ·´ÖÃ 0xa1Õý³£
    

  18.     DevOLED_WRByte(0xC8,OLED_CMD);//Set COM/Row Scan Direction   0xc0ÉÏÏ·´Öà 0xc8Õý³£
    

  19.     DevOLED_WRByte(0xA6,OLED_CMD);//--set normal display
    

  20.     DevOLED_WRByte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
    

  21.     DevOLED_WRByte(0x3f,OLED_CMD);//--1/64 duty
    

  22.     DevOLED_WRByte(0xD3,OLED_CMD);//-set display offset   Shift Mapping RAM Counter (0x00~0x3F)
    

  23.     DevOLED_WRByte(0x00,OLED_CMD);//-not offset
    

  24.     DevOLED_WRByte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
    

  25.     DevOLED_WRByte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
    

  26.     DevOLED_WRByte(0xD9,OLED_CMD);//--set pre-charge period
    

  27.     DevOLED_WRByte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
    

  28.     DevOLED_WRByte(0xDA,OLED_CMD);//--set com pins hardware configuration
    

  29.     DevOLED_WRByte(0x12,OLED_CMD);
    

  30.     DevOLED_WRByte(0xDB,OLED_CMD);//--set vcomh
    

  31.     DevOLED_WRByte(0x40,OLED_CMD);//Set VCOM Deselect Level
    

  32.     DevOLED_WRByte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
    

  33.     DevOLED_WRByte(0x02,OLED_CMD);//
    

  34.     DevOLED_WRByte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
    

  35.     DevOLED_WRByte(0x14,OLED_CMD);//--set(0x10) disable
    

  36.     DevOLED_WRByte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
    

  37.     DevOLED_WRByte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
    

  38.     DevOLED_WRByte(0xAF,OLED_CMD);//--turn on oled panel
    


  39. 

  40.     DevOLED_WRByte(0xAF,OLED_CMD); /*display ON*/
    

  41.     DevOLED_Clear();
    

  42.     DevOLED_Set_Pos(0,0);
    

  43.     DevOLED_UIInit();
    

  44. }
复制
  1. void DevOLED_UIInit(void)
    

  2. {
    

  3.     //固定显示第一行，不刷新，显示中文“时间”和“：”
    

  4.     DevOLED_ShowChinese(0,0,0,16);
    

  5.     DevOLED_ShowChinese(1,0,1,16);
    

  6.     DevOLED_ShowString(2,0,":",16);
    

  7. }


FreeRTOS任务刷新显示，system_count是1ms定时器累计数值。
复制
  1. void DevOLED_UIHandle(void)
    

  2. {
    

  3.     
    

  4.         DevOLED_ShowTime(44,0,system_count/1000,16);
    

  5. }
复制
  1. void LEDThread_Entry(void *argument)
    

  2. {
    

  3.         (void) argument;
    


  4. 

  5.         printf("system start\r\n");
    


  6. 

  7.   while(1)
    

  8.   {
    

  9.           DevOLED_UIHandle();
    

  10.         HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
    

  11.         /* Delay for 500ms */
    

  12.         vTaskDelay(50);
    

  13.         HAL_GPIO_TogglePin(LED2_GPIO_Port, LED2_Pin);
    

  14.         vTaskDelay(50);
    

  15.         HAL_GPIO_TogglePin(LED3_GPIO_Port, LED3_Pin);
    

  16.         vTaskDelay(50);
    

  17.   }
    

  18. }


最后显示效果
6086064bb3c7bcac96.jpg
回复 赏

举报

相关帖子
Undshing 发表于 2023-8-18 10:59 | 显示全部楼层
freeRTOS是需要自己移植吗？
回复 赏

举报

中国龙芯CDX 发表于 2023-8-21 10:14 | 显示全部楼层
SPI软件配置还是挺方便的，整体刷新速率快
回复 赏

举报

返回列表 发新帖
高级模式
B Color Image Link Quote Code Smilies
您需要登录后才可以回帖 登录 | 注册

本版积分规则

穿西装的强子

60

主题

257

帖子

3

粉丝
快速回复 在线客服 返回列表 返回顶部