Implement AccessMemory function

src/CLR/WireProtocol/WireProtocol_MonitorCommands.h

@@ -23,6 +23,26 @@ typedef enum Monitor_Reboot_Options
     Monitor_Reboot_c_ClrStopDebugger = 4
 }Monitor_Reboot_Options;
 
+// structure for Access Memory operations
+typedef enum AccessMemory_Operations
+{
+    // check if memory space is erased
+    AccessMemory_Check    = 0x00,
+
+    // read block of data starting at a given address
+    AccessMemory_Read     = 0x01,
+
+    // write block of data starting at a given address
+    AccessMemory_Write    = 0x02,
+
+    // erase sector/block/page at a given address 
+    AccessMemory_Erase    = 0x03,
+
+
+    AccessMemory_Mask     = 0x0F
+
+}AccessMemory_Operations;
+
 //////////////////////////////////////////
 // typedefs
 

targets/CMSIS-OS/ChibiOS/ST_NUCLEO144_F746ZG/nanoBooter/halconf_nf.h

@@ -8,12 +8,12 @@
 
 // Enables the ChibiOS community overlay.
 #if !defined(HAL_USE_COMMUNITY) 
-#define HAL_USE_COMMUNITY           FALSE
+#define HAL_USE_COMMUNITY           TRUE
 #endif
 
 // enables STM32 Flash driver
 #if !defined(HAL_USE_STM32_FLASH) 
-#define HAL_USE_STM32_FLASH         FALSE
+#define HAL_USE_STM32_FLASH         TRUE
 #endif
 
 #endif // _HALCONF_NF_H_

targets/CMSIS-OS/ChibiOS/nanoBooter/WireProtocol_App_Interface.c

@@ -21,8 +21,8 @@ static const CommandHandlerLookup c_Lookup_Request[] =
     // //
     // DEFINE_CMD(ReadMemory ),
     DEFINE_CMD(WriteMemory),
-    // DEFINE_CMD(CheckMemory),
-    // DEFINE_CMD(EraseMemory),
+    //DEFINE_CMD(CheckMemory),
+    DEFINE_CMD(EraseMemory),
     // //
     // DEFINE_CMD(Execute    ),
     // DEFINE_CMD(MemoryMap  ),

targets/CMSIS-OS/ChibiOS/nanoBooter/WireProtocol_MonitorCommands.c

@@ -10,12 +10,6 @@
 #include <WireProtocol_MonitorCommands.h>
 #include <target_board.h>
 
-static const int AccessMemory_Check    = 0x00;
-static const int AccessMemory_Read     = 0x01;
-static const int AccessMemory_Write    = 0x02;
-static const int AccessMemory_Erase    = 0x03;
-static const int AccessMemory_Mask     = 0x0F;
-
 //////////////////////////////////////////////////////////////////////
 // helper functions
 
@@ -33,8 +27,30 @@ bool NanoBooter_GetReleaseInfo(ReleaseInfo* releaseInfo)
 
 static bool AccessMemory(uint32_t location, uint32_t lengthInBytes, uint8_t* buffer, int mode)
 {
-
-    return true;
+    switch(mode)
+    {
+        case AccessMemory_Write:
+            // use FLASH driver to perform write operation
+            // this requires that HAL_USE_STM32_FLASH is set to TRUE on halconf_nf.h
+            return stm32FlashWrite(location, lengthInBytes, buffer);
+
+        case AccessMemory_Erase:
+            // erase using FLASH driver
+            // this requires that HAL_USE_STM32_FLASH is set to TRUE on halconf_nf.h
+            return stm32FlashErase(location);
+
+        case AccessMemory_Check:
+            // use FLASH driver to check is FLASH segment is erased
+            // this requires that HAL_USE_STM32_FLASH is set to TRUE on halconf_nf.h
+            return stm32FlashIsErased(location, lengthInBytes);
+
+        ///////////////////////////////////
+        // modes NOT supported
+        case AccessMemory_Read:
+        default:
+            // default return is FALSE
+            return false;
+    }
 }
 
 ////////////////////////////////////////////////////