Inc/DS_I2CScanner.h

@@ -0,0 +1,16 @@
+#ifndef DS_I2CSCANNER_H
+#define DS_I2CSCANNER_H
+
+#include "main.h"
+
+#ifdef STM32G0
+#include "stm32g0xx_hal.h"
+#endif
+
+#ifdef STM32F0
+#include "stm32f0xx_hal.h"
+#endif
+
+void DS_I2CScan(I2C_HandleTypeDef *I2C, uint8_t *Result, uint8_t maxNumResults);
+
+#endif

Src/DS_I2CScanner.c

@@ -0,0 +1,25 @@
+#include "DS_I2CScanner.h"
+
+void DS_I2CScan(I2C_HandleTypeDef *I2C, uint8_t *Result, uint8_t maxNumResults)
+{
+  HAL_StatusTypeDef HAL_result = HAL_ERROR;
+  uint8_t NumOfResult = 0;
+
+  for (uint8_t i = 0; i < maxNumResults - 1; i++)
+  {
+    Result[i] = 0;
+  }
+
+  for (uint8_t addr = 0; addr < 0xFF; ++addr)
+  {
+    HAL_result = HAL_I2C_IsDeviceReady(I2C, addr, 3, 1000);
+    if (HAL_result == HAL_OK)
+    {
+      Result[NumOfResult] = addr;
+      if (NumOfResult < maxNumResults - 1)
+      {
+        NumOfResult++;
+      }
+    }
+  }
+}