Vizic Technologies
/
EEPROM_SG2
EEPROM Demo - MBED + SmartGPU2 board
main.cpp@0:1e62f3fc1154, 2013-07-10 (annotated)
- Committer:
- emmanuelchio
- Date:
- Wed Jul 10 03:26:57 2013 +0000
- Revision:
- 0:1e62f3fc1154
- Child:
- 1:ccc3b08131c8
EEPROM Demo - MBED + SmartGPU2 board
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emmanuelchio | 0:1e62f3fc1154 | 1 | /**************************************************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 2 | /*SMARTGPU2 intelligent embedded graphics processor unit |
emmanuelchio | 0:1e62f3fc1154 | 3 | those examples are for use the SMARTGPU2 with the mbed microcontoller, just connect tx,rx,and reset |
emmanuelchio | 0:1e62f3fc1154 | 4 | Board: |
emmanuelchio | 0:1e62f3fc1154 | 5 | http://vizictechnologies.com/#/smart-gpu-2/4577779046 |
emmanuelchio | 0:1e62f3fc1154 | 6 | |
emmanuelchio | 0:1e62f3fc1154 | 7 | www.vizictechnologies.com |
emmanuelchio | 0:1e62f3fc1154 | 8 | Vizic Technologies copyright 2013 */ |
emmanuelchio | 0:1e62f3fc1154 | 9 | /**************************************************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 10 | |
emmanuelchio | 0:1e62f3fc1154 | 11 | /******************************************************** |
emmanuelchio | 0:1e62f3fc1154 | 12 | This simple sketch does the next: |
emmanuelchio | 0:1e62f3fc1154 | 13 | 1.- init/Clear EEPROM buffer with 0xFF - EEPROM buffer size is 2048 (2k) |
emmanuelchio | 0:1e62f3fc1154 | 14 | 2.- write data 10 times to EEPROM buffer "0123456789" |
emmanuelchio | 0:1e62f3fc1154 | 15 | 3.- compare EEPROM buffer contents with EEPROM PAGE0, if equal go to step 7, if not continue to step 4 |
emmanuelchio | 0:1e62f3fc1154 | 16 | 4.- erase EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 17 | 5.- save current EEPROM buffer contents(100 x "0123456789") to EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 18 | 6.- compare again EEPROM buffer contents with EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 19 | 7.- show results on display |
emmanuelchio | 0:1e62f3fc1154 | 20 | 8.- end |
emmanuelchio | 0:1e62f3fc1154 | 21 | |
emmanuelchio | 0:1e62f3fc1154 | 22 | - once executed the above, remove power from SmartGPU and run sketch again, EEPROM contents will remain as they are non-volatile data |
emmanuelchio | 0:1e62f3fc1154 | 23 | ********************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 24 | |
emmanuelchio | 0:1e62f3fc1154 | 25 | #include "mbed.h" |
emmanuelchio | 0:1e62f3fc1154 | 26 | #include "SMARTGPU2.h" |
emmanuelchio | 0:1e62f3fc1154 | 27 | |
emmanuelchio | 0:1e62f3fc1154 | 28 | SMARTGPU2 lcd(TXPIN,RXPIN,RESETPIN); //create our object called "lcd" |
emmanuelchio | 0:1e62f3fc1154 | 29 | |
emmanuelchio | 0:1e62f3fc1154 | 30 | unsigned int row=10; |
emmanuelchio | 0:1e62f3fc1154 | 31 | |
emmanuelchio | 0:1e62f3fc1154 | 32 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 33 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 34 | void initializeSmartGPU2(void){ //Initialize SMARTGPU2 Board |
emmanuelchio | 0:1e62f3fc1154 | 35 | lcd.reset(); //physically reset SMARTGPU2 |
emmanuelchio | 0:1e62f3fc1154 | 36 | lcd.start(); //initialize the SMARTGPU2 processor |
emmanuelchio | 0:1e62f3fc1154 | 37 | } |
emmanuelchio | 0:1e62f3fc1154 | 38 | |
emmanuelchio | 0:1e62f3fc1154 | 39 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 40 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 41 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 42 | /***************************************************/ |
emmanuelchio | 0:1e62f3fc1154 | 43 | int main() { |
emmanuelchio | 0:1e62f3fc1154 | 44 | NUMBEROFBYTES charsPrinted; |
emmanuelchio | 0:1e62f3fc1154 | 45 | char data[]="0123456789"; |
emmanuelchio | 0:1e62f3fc1154 | 46 | unsigned int i=0; |
emmanuelchio | 0:1e62f3fc1154 | 47 | unsigned char result=0; |
emmanuelchio | 0:1e62f3fc1154 | 48 | |
emmanuelchio | 0:1e62f3fc1154 | 49 | initializeSmartGPU2(); //Init communication with SmartGPU2 board |
emmanuelchio | 0:1e62f3fc1154 | 50 | lcd.baudChange(BAUD7); //set a fast baud! for fast drawing |
emmanuelchio | 0:1e62f3fc1154 | 51 | |
emmanuelchio | 0:1e62f3fc1154 | 52 | //strings config |
emmanuelchio | 0:1e62f3fc1154 | 53 | lcd.setTextColour(GREEN); |
emmanuelchio | 0:1e62f3fc1154 | 54 | lcd.string(10,row,319,239,"EEPROM page open, read, write demo!",&charsPrinted); row+=30; |
emmanuelchio | 0:1e62f3fc1154 | 55 | lcd.string(10,row,319,239,"Performing procedure...",&charsPrinted); row+=30; |
emmanuelchio | 0:1e62f3fc1154 | 56 | |
emmanuelchio | 0:1e62f3fc1154 | 57 | //ONCE WE START USING EEPROM BUFFER WE CAN'T CALL OTHER SMARTGPU FUNCTIONS DIFFERENT THAN EEPROM 'E' FUNCTIONS, AS EEPROM BUFFER WILL BE DISCARDED IF SO |
emmanuelchio | 0:1e62f3fc1154 | 58 | //init/Clear EEPROM buffer with 0xFF values |
emmanuelchio | 0:1e62f3fc1154 | 59 | lcd.initClearEEPROMBuff(); |
emmanuelchio | 0:1e62f3fc1154 | 60 | |
emmanuelchio | 0:1e62f3fc1154 | 61 | //write data array 10 times to EEPROM buffer |
emmanuelchio | 0:1e62f3fc1154 | 62 | for(i=0; i < 10; i++){ |
emmanuelchio | 0:1e62f3fc1154 | 63 | lcd.writeEEPROMBuff(data, i*10, 10, &charsPrinted); |
emmanuelchio | 0:1e62f3fc1154 | 64 | } |
emmanuelchio | 0:1e62f3fc1154 | 65 | |
emmanuelchio | 0:1e62f3fc1154 | 66 | //verify contents - EEPROM buffer contents vs EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 67 | lcd.compBuffToEEPROMPage(PAGE0, &result); //compare EEPROM buffer contents with EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 68 | |
emmanuelchio | 0:1e62f3fc1154 | 69 | if(result == 1){ //if contents are equal - means that data was already written and its equal |
emmanuelchio | 0:1e62f3fc1154 | 70 | lcd.string(10,row,319,239,"EEPROM PAGE0 Contents were already equal...END",&charsPrinted); |
emmanuelchio | 0:1e62f3fc1154 | 71 | }else{ //if contents are different - erase PAGE0 and write EEPROM buffer into PAGE0 - This procedure will be executed only the veryfirst time |
emmanuelchio | 0:1e62f3fc1154 | 72 | //erase EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 73 | lcd.eraseEEPROMPage(PAGE0); |
emmanuelchio | 0:1e62f3fc1154 | 74 | //save current EEPROM buffer contents(100 x "0123456789") to EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 75 | lcd.saveBuffToEEPROMPage(PAGE0); |
emmanuelchio | 0:1e62f3fc1154 | 76 | //verify contents again - EEPROM buffer contents vs EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 77 | lcd.compBuffToEEPROMPage(PAGE0, &result); //compare EEPROM buffer contents with EEPROM PAGE0 |
emmanuelchio | 0:1e62f3fc1154 | 78 | if(result == 1){ //if contents are equal |
emmanuelchio | 0:1e62f3fc1154 | 79 | lcd.string(10,row,319,239,"New EEPROM PAGE0 Contents are equal...END",&charsPrinted); |
emmanuelchio | 0:1e62f3fc1154 | 80 | }else{ //error |
emmanuelchio | 0:1e62f3fc1154 | 81 | lcd.string(10,row,319,239,"New EEPROM PAGE0 Contents differ...END",&charsPrinted); |
emmanuelchio | 0:1e62f3fc1154 | 82 | } |
emmanuelchio | 0:1e62f3fc1154 | 83 | } |
emmanuelchio | 0:1e62f3fc1154 | 84 | |
emmanuelchio | 0:1e62f3fc1154 | 85 | //loop forever |
emmanuelchio | 0:1e62f3fc1154 | 86 | while(1); |
emmanuelchio | 0:1e62f3fc1154 | 87 | } |