Diff: eeprom_flash.cpp

Revision:

2:68c9ff91504c

Parent:

0:ea2bec485611

Child:

3:46c0511e25af

--- a/eeprom_flash.cpp	Mon Aug 29 21:29:20 2016 +0000
+++ b/eeprom_flash.cpp	Mon Feb 04 15:06:07 2019 +0000
@@ -1,29 +1,14 @@
 #include "mbed.h"
 #include "eeprom_flash.h"
-
-/*
- * Debug option
- */
-#if 0
-//Enable debug
-#include <cstdio>
-#define DBG(x, ...) std::printf("[eeprom: DBG]"x"\r\n", ##__VA_ARGS__); 
-#define WARN(x, ...) std::printf("[eeprom: WARN]"x"\r\n", ##__VA_ARGS__); 
-#define ERR(x, ...) std::printf("[eeprom: ERR]"x"\r\n", ##__VA_ARGS__); 
-#else
-//Disable debug
-#define DBG(x, ...) 
-#define WARN(x, ...)
-#define ERR(x, ...) 
-#endif
-
+Serial pc(USBTX, USBRX); //Initalise PC serial comms
+DigitalOut myled(LED1);
 /*
  * Must call this first to enable writing
  */
 void enableEEPROMWriting() {
     HAL_StatusTypeDef status = HAL_FLASH_Unlock();
     FLASH_PageErase(EEPROM_START_ADDRESS); // required to re-write
-    CLEAR_BIT(FLASH->CR, FLASH_CR_PER); // Bug fix: bit PER has been set in Flash_PageErase(), must clear it here
+    CLEAR_BIT(FLASH->CR, FLASH_CR_PER);    // Bug fix: bit PER has been set in Flash_PageErase(), must clear it here
 }
 
 void disableEEPROMWriting() {
@@ -37,18 +22,7 @@
 HAL_StatusTypeDef writeEEPROMHalfWord(uint32_t address, uint16_t data) {
     HAL_StatusTypeDef status;
     address = address + EEPROM_START_ADDRESS;
-    
     status = HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, address, data);
-    
-    return status;
-}
-
-HAL_StatusTypeDef writeEEPROMWord(uint32_t address, uint32_t data) {
-    HAL_StatusTypeDef status;
-    address = address + EEPROM_START_ADDRESS;
-    
-    status = HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, address, data);
-
     return status;
 }
 
@@ -59,14 +33,47 @@
     uint16_t val = 0;
     address = address + EEPROM_START_ADDRESS;
     val = *(__IO uint16_t*)address;
-    
-    return val;
+     return val;
 }
 
-uint32_t readEEPROMWord(uint32_t address) {
-    uint32_t val = 0;
-    address = address + EEPROM_START_ADDRESS;
-    val = *(__IO uint32_t*)address;
-    
-    return val;
-}
+//Programme de test
+
+int main() {
+int adresse = 0x00;
+char donnee1 = 11;
+char donnee2 = 22;
+char donnee3 = 33;
+int lecture;
+pc.baud(9600);
+
+/* Ecriture*/
+enableEEPROMWriting(); //autorisation d'ecriture dans l'eeprom
+writeEEPROMHalfWord(adresse, donnee1);
+writeEEPROMHalfWord(adresse+2, donnee2);
+writeEEPROMHalfWord(adresse+4, donnee3);
+disableEEPROMWriting(); //Interdiction d'ecriture
+
+ myled=!myled;
+        wait(0.5);
+        myled=!myled;
+        wait(0.5);
+
+/*lecture et affichage*/
+lecture=readEEPROMHalfWord(adresse);
+if (lecture==11)
+    {
+        myled=!myled;
+        wait(0.5);
+        myled=!myled;
+        wait(0.5);
+        myled=!myled;
+        wait(0.5);
+    }
+pc.printf ("valeur lue: %d\n\r",lecture);
+
+lecture=readEEPROMHalfWord(adresse+2);
+pc.printf ("valeur lue: %d\n\r",lecture);
+lecture=readEEPROMHalfWord(adresse+4);
+pc.printf ("valeur lue: %d\n\r",lecture);
+ while(1);
+}
\ No newline at end of file