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--- robots:hako:firmware:welcome [2012/09/26 18:25]
karina [Mainboard - Software - Notation - Types and prefixes]
+++ robots:hako:firmware:welcome [2021/08/14 04:21] (current)
@@ Line 73: / Line 73: @@
 ==== Mainboard - Software - Notation - Types and prefixes ====
+  * [[robots:hako:firmware:welcome#Recommended unambiguous type definitions and prefixes|Unordered List ItemTypes/prefixes]]
+  * [[robots:hako:firmware:welcome#Type definition (typedef) prefixes|Typedef prefixes]]
+  * [[robots:hako:firmware:welcome#Definition prefixes|Definition prefixes]]
+  * [[robots:hako:firmware:welcome#Modifier prefixes|Modifier refixes]]
+  * [[robots:hako:firmware:welcome#Area of validity prefixes|Validity prefixes]]
+  * [[robots:hako:firmware:welcome#Examples|Examples]]
 Header file: "xll_stwtypes.h"
@@ Line 79: / Line 87: @@
 That is why STW introduced unambiguous types like 'uint16' to avoid confusions in future.
-**Recommended unambiguous type definitions and prefixes**
+== Recommended unambiguous type definitions and prefixes ==
@@ Line 119: / Line 127: @@
-**Type definition (typedef) prefixes**
+== Type definition (typedef) prefixes ==
 ^Prefix^Example^Description^
 |T_|typedef struct { ... } T_Struct;|type definition for structure (or bitfield) |
@@ Line 126: / Line 134: @@
 |PR_|typedef void (*PR_Function)( const uint8 ou8_Parameter );| type definition for function pointer|
-**Definition prefixes**
+== Definition prefixes ==
 ^Prefix^Example^Description^
 |t_|T_Struct t_Struct;| structure (or bitfield)|
@@ Line 137: / Line 145: @@
-**Modifier prefixes**
+== Modifier prefixes ==
 ^Prefix^Example^Description^
 |p<type prefix>|uint8 *pu8_Example; |pointer of type|
 |a<type prefix>|uint8 au8_Example[4];| array of type|
-**Area of validity prefixes**
+== Area of validity prefixes ==
+^Prefix^Example^Description^
+|g<type prefix>| uint8 gu8_Global; |global|
+|m<type prefix>| static uint8 mu8_ModuleGlobal; |module global (static inside file)|
+|h<type prefix>| static uint8 hu8_Example; |local static (static inside function - hold)|
+|o<type prefix>| void Callback( const uint8 ou8_Parameter ); |function parameter (operand)|
+== Examples ==
+<sxh c>
+//Prefix examples
+/* local variable sint16 */
+sint16 s16_VariableName;
+/* function internal array of pointers to uint8 with MAX_MESSAGES elements */
+uint8 *apu8_Messages[MAX_MESSAGES];
+/* Module global variable of type uint32 */
+static uint32 mu32_Index;
+/* typedef for structure */
+typedef struct
+{
+uint8 u8_Element1;
+uint32 *pu32_Element2;
+} T_StructType;
+/* modul globale pointer to structure defined by typdedef */
+static T_StructType *mpt_PointerToMyStructType;
+/* function internal used structure */
+T_StructType t_MyStructObject;
+/* module global structure variable */
+static T_StructType mt_MyStruct;
+/* typedef for function pointer for a module 'DigIN' */
+typedef void (*PR_DIN_CallBack)(const uint8 ou8_Parameter);
+/* global function pointer in module 'DigIN' */
+PR_DIN_CallBack gpr_DIN_CallBack;
+</sxh>

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