Revision 0:555eecb74312, committed 2013-07-10

Comitter:

emmanuelchio

Date:

Wed Jul 10 03:28:18 2013 +0000

Child:

1:4340adf495e4

Commit message:

FIle Creation - MBED + SmartGPU2 board

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SMARTGPU2.lib	Wed Jul 10 03:28:18 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/emmanuelchio/code/SMARTGPU2/#210b5ba62803

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jul 10 03:28:18 2013 +0000
@@ -0,0 +1,113 @@
+/**************************************************************************************/
+/*SMARTGPU2 intelligent embedded graphics processor unit
+ those examples are for use the SMARTGPU2 with the mbed microcontoller, just connect tx,rx,and reset
+ Board:
+ http://vizictechnologies.com/#/smart-gpu-2/4577779046
+ 
+ www.vizictechnologies.com 
+ Vizic Technologies copyright 2013 */
+/**************************************************************************************/
+
+/********************************************************
+ This simple sketch does the next:
+ 1.- try open the "test file.txt" file in the microSD root path in write only mode 
+ 2.- if doesn't exist, create the file - if exist overwritte the file
+ 3.- open again the "test file.txt" file in the microSD root path in write only mode 
+ 4.- write "Data Written by the SmartDRIVE Processor" to the .txt file
+ 5.- save contents and close file
+ 6.- open again the file in read only mode
+ 7.- read from file to a buffer
+ 8.- verify data read to be equal to message
+ 9.- if different erase the created file else keep the file
+ 10- umount drive
+ 11.- end
+ 
+- remove microSD card and search for the file on a PC with the written contents
+********************************************************/
+
+#include "mbed.h"
+#include "SMARTGPU2.h"
+
+SMARTGPU2 lcd(TXPIN,RXPIN,RESETPIN);  //create our object called "lcd"
+
+FILERESULT res;            //create the variable that will store all SMARTGPU2 commands responses
+
+char message[41]="Data Written by the SmartGPU 2 Processor";
+unsigned int row=10;
+
+//function that loops forever on error
+void die(FILERESULT response){ //if the response is different than OK, print and loop forever
+  NUMBEROFBYTES charsPrint;
+  if(response!=F_OK){
+    lcd.string(10,row,319,239,"Error... forever loop @",&charsPrint);
+    while(1);  
+  }
+}
+
+/***************************************************/
+/***************************************************/
+void initializeSmartGPU2(void){      //Initialize SMARTGPU2 Board
+  lcd.reset();                       //physically reset SMARTGPU2
+  lcd.start();                       //initialize the SMARTGPU2 processor
+}
+
+/***************************************************/
+/***************************************************/
+/***************************************************/
+/***************************************************/
+int main() {
+  NUMBEROFBYTES charsPrinted;
+  char buffer[50]={0};
+  unsigned int writtenBytes=0, readbytes=0, i=0;   
+  
+  initializeSmartGPU2();             //Init communication with SmartGPU2 board
+
+  //strings config
+  lcd.setTextColour(GREEN);    
+  lcd.string(10,row,319,239,"FAT file open, read, write demo!",&charsPrinted);           row+=15;
+  lcd.string(10,row,319,239,"Open File <test file.txt> in WRITE mode...",&charsPrinted); row+=15;
+   
+  //try to open the file
+  res=lcd.SDFopenFile("test file.txt", WRITEONLY, WORKSPACE0);  //Try to open a file called "testFile.txt" in write only mode in the workspace block 0    
+  if(res!=F_OK){                       //If the file doesn't Open is because it doesn't exist      
+    lcd.string(10,row,319,239,"File doesn't exist, creating file...",&charsPrinted); row+=15;    
+    res=lcd.SDFnewFile("test file.txt");  //Try to create the file 
+    die(res);                        //If any error loop forever
+    res=lcd.SDFopenFile("test file.txt", WRITEONLY, WORKSPACE0);  //Try to open the created file      
+    die(res);                        //If any error loop forever
+  }
+  
+  //Up to here the file exist and is open    
+  lcd.string(10,row,319,239,"File Successfully Open in WRITE mode...",&charsPrinted); row+=15;    
+  lcd.string(10,row,319,239,"Write <Data Written by the SmartGPU 2 Processor>",&charsPrinted); row+=15;    
+  res=lcd.SDFwriteFile(message, sizeof(message), &writtenBytes, WORKSPACE0); //write to the open file in WORKSPACE0 size of message in bytes and store the successfully written Bytes on writtenBytes variable
+  die(res);                         //If any error loop forever    
+  lcd.SDFsaveFile(WORKSPACE0);          //Save changes in the file contained in WORKSPACE0
+  lcd.string(10,row,319,239,"Closing File...",&charsPrinted); row+=15;    
+  lcd.SDFcloseFile(WORKSPACE0);         //Close the file --------------------
+  
+  //Now lets verify contents
+  //open again the file in read only mode
+  lcd.string(10,row,319,239,"Open File <test file.txt> in READ mode...",&charsPrinted); row+=15;    
+  res=lcd.SDFopenFile("test file.txt", READONLY, WORKSPACE0);  //Try to open again the file read only mode in the workspace block 0
+  die(res);                         //If any error loop forever
+  //read the file  
+  lcd.string(10,row,319,239,"File Successfully Open in READ mode...",&charsPrinted); row+=15;    
+  lcd.string(10,row,319,239,"Read bytes from file to buffer...",&charsPrinted); row+=15;    
+  res=lcd.SDFreadFile(buffer, sizeof(message), &readbytes, WORKSPACE0); //read size of message in bytes from the open file in WORKSPACE0 and store the successfully read Bytes on readbytes variable
+  die(res);                         //If any error loop forever        
+  lcd.string(10,row,319,239,"Closing File...",&charsPrinted); row+=15;        
+  lcd.SDFcloseFile(WORKSPACE0);         //Close the file --------------------
+  
+  //check contents
+  lcd.string(10,row,319,239,"Verify/Compare contents...",&charsPrinted); row+=15;            
+  for(i=0;i<sizeof(message);i++){      
+    if(message[i]!=buffer[i]){ //if contents are different
+      lcd.string(10,row,319,239,"Contents differ, erasing the created file...END",&charsPrinted); row+=10;                  
+      lcd.SDFeraseDirFile("test file.txt"); //erase the File
+      while(1);
+    }
+  }
+  lcd.string(10,row,319,239,"Contents are equal...END",&charsPrinted);
+  while(1);
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jul 10 03:28:18 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17
\ No newline at end of file