Diff: main.cpp

Revision:

0:a9f44b553efd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Aug 04 10:07:46 2022 +0000
@@ -0,0 +1,231 @@
+
+//i2c_HT16K33_test1_767_1
+
+#include "mbed.h"
+
+#include "main.h"
+
+#define ADDR        (0x70<<1)  //  address
+
+
+DigitalOut myled(PB_0);
+
+
+//I2C i2c(I2C_SDA, I2C_SCL); //767
+//I2C i2c(PB_9, PB_8); //767
+
+
+I2C_HandleTypeDef hi2c1;
+
+
+
+
+
+
+void Error_Handler(void)
+{
+  __disable_irq();
+  while (1)
+  {
+  }
+}
+
+#ifdef  USE_FULL_ASSERT
+void assert_failed(uint8_t *file, uint32_t line)
+{
+}
+#endif /* USE_FULL_ASSERT */
+
+
+
+
+
+
+
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
+
+  /** Configure the main internal regulator output voltage
+  */
+  __HAL_RCC_PWR_CLK_ENABLE();
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Initializes the CPU, AHB and APB buses clocks
+  */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
+  PeriphClkInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+}
+
+
+
+
+static void MX_I2C1_Init(void)
+{
+
+  hi2c1.Instance = I2C1;
+  hi2c1.Init.Timing = 0x00303D5B;
+  hi2c1.Init.OwnAddress1 = 0;
+  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c1.Init.OwnAddress2 = 0;
+  hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
+  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+}
+
+
+
+static void MX_GPIO_Init(void)
+{
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+}
+
+
+
+
+
+
+
+void HAL_MspInit(void)
+{
+
+  __HAL_RCC_PWR_CLK_ENABLE();
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+
+}
+
+
+void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(hi2c->Instance==I2C1)
+  {
+
+
+    __HAL_RCC_GPIOB_CLK_ENABLE();
+    /**I2C1 GPIO Configuration
+    PB8     ------> I2C1_SCL
+    PB9     ------> I2C1_SDA
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
+    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+    __HAL_RCC_I2C1_CLK_ENABLE();
+
+  }
+
+}
+
+
+
+
+
+
+
+
+int main() {
+
+
+  HAL_Init();
+
+  SystemClock_Config();
+  MX_GPIO_Init();
+  MX_I2C1_Init();
+
+
+HAL_MspInit();
+
+HAL_I2C_MspInit(&hi2c1);
+
+
+
+
+    uint8_t buf[16];
+
+    buf[0]=0x21;
+    HAL_I2C_Master_Transmit(&hi2c1, ADDR, buf, 1, 3000);wait_ms(1);
+
+    buf[0]=0x81;
+    HAL_I2C_Master_Transmit(&hi2c1, ADDR, buf, 1, 3000);wait_ms(1);
+
+    buf[0]=0xef;
+    HAL_I2C_Master_Transmit(&hi2c1, ADDR, buf, 1, 3000);wait_ms(1);
+
+    for(int ii=0;ii<16;ii++){
+        buf[0]=ii;
+        buf[1]=0x00;
+        HAL_I2C_Master_Transmit(&hi2c1, ADDR, buf, 2, 3000);wait_ms(1);
+    }//for
+
+    while(1) {
+
+        for(int ii=0;ii<8;ii++){
+
+            buf[0]=0;
+            buf[1]= (1<<ii);
+            HAL_I2C_Master_Transmit(&hi2c1, ADDR, buf, 2, 3000);wait_ms(600);
+
+        //myled = 1;
+        HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_SET);
+        wait(0.2);
+        //myled = 0;
+        HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_RESET);
+        wait(0.2);
+
+
+        }//for
+    }//while
+
+
+
+}//main
+
+