Diff: main.cpp

Revision:

0:2633b3dba75d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Aug 11 00:16:18 2022 +0000
@@ -0,0 +1,76 @@
+
+//HAL_oled_16x24_031_1
+
+
+#include "mbed.h"
+#include "SSD1308.h"
+
+
+int main() {
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+
+    GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+    GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF6_I2C2;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    GPIO_InitStruct.Pin = GPIO_PIN_0;
+    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+
+    __HAL_RCC_I2C2_CLK_ENABLE();
+
+    I2C_HandleTypeDef hi2c2;
+
+    hi2c2.Instance = I2C2;
+    hi2c2.Init.Timing = 0x10707DBC;
+    hi2c2.Init.OwnAddress1 = 0;
+    hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+    hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+    hi2c2.Init.OwnAddress2 = 0;
+    hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
+    hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+    hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+    HAL_I2C_Init(&hi2c2);    
+
+    HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE);
+
+    HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0);
+
+
+HAL_Delay(200);
+
+
+    SSD1308 oled = SSD1308( &hi2c2 , SSD1308_SA0);
+
+
+    //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
+
+    while(1) {
+
+         HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_SET);
+         HAL_Delay(200);
+
+         HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_RESET);
+         HAL_Delay(200);
+      
+    }//while
+
+}//main