Diff: main.cpp

Revision:

0:586ac17962ab

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Aug 05 06:00:30 2022 +0000
@@ -0,0 +1,132 @@
+
+//i2c_HT16K33_test1_767_1
+
+#include "mbed.h"
+
+#include "main.h"
+
+#include "SSD1308.h"
+
+
+#define ADDR        (0x70<<1)  //  address
+
+DigitalOut myled(PB_0);
+
+I2C_HandleTypeDef hi2c1;
+
+void SystemClock_Config(void)
+{
+    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+    RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
+
+    __HAL_RCC_PWR_CLK_ENABLE();
+    __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
+
+    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;
+    HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+    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;
+    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
+
+    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
+    PeriphClkInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
+    HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
+}
+
+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;
+    HAL_I2C_Init(&hi2c1);
+
+    HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE);
+    HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0);
+}
+
+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);
+
+
+SSD1308 oled = SSD1308( &hi2c1 , SSD1308_SA0);
+//SSD1308 oled = SSD1308( &hi2c1 , ADDR);
+
+
+
+    //char n1_8[] = "12345678";
+    char n1_8[] = "87654321";
+    //char n1_8[] =   "88888888";
+
+    int ii=0;
+    for(int nn=0; nn<8; nn++) {
+        //                y   x
+        oled.writeBigChar(0, ii*16,n1_8[nn]);
+        ii = ii + 1;
+    } //for
+    //pc.printf("Printed something\r\n");
+//    printf("Printed something\r\n");
+    
+    //oled.writeString(0, 0, "Hello World !");  
+
+
+
+
+}//main