Basic example showing how to use a M24LR64 EEPROM with the STM32746G_DISCOVERY board. This EEPROM can be found on the additional ANT7-M24LR-A daughter board.

Dependencies:   BSP_DISCO_F746NG

This example shows how to read and write data in RF EEPROM. The I2C EEPROM memory (M24LR64) is available on separate daughter board ANT7-M24LR-A, which is not provided with the STM32746G-Discovery board. To use this driver you have to connect the ANT7-M24LR-A to CN1 connector of STM32746G-Discovery board.

Revision:
3:508424185673
Parent:
0:d5bffd99efd3
diff -r fec4ab60a7fd -r 508424185673 main.cpp
--- a/main.cpp	Thu Jun 08 13:26:04 2017 +0000
+++ b/main.cpp	Wed Nov 20 13:56:28 2019 +0100
@@ -1,56 +1,42 @@
 #include "mbed.h"
-#include "EEPROM_DISCO_F746NG.h"
-
-EEPROM_DISCO_F746NG eep;
+#include "stm32746g_discovery_eeprom.h"
 
-DigitalOut led_green(LED1);
-DigitalOut led_red(LED2);
-
-Serial pc(USBTX, USBRX);
 
 #define BUFFER_SIZE         ((uint32_t)32)
 #define WRITE_READ_ADDR     ((uint32_t)0x0000)
 
 int main()
 {
-    //                                    12345678901234567890123456789012
-    uint8_t WriteBuffer[BUFFER_SIZE+1] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
-    uint8_t ReadBuffer[BUFFER_SIZE+1];
+    //                                      12345678901234567890123456789012
+    uint8_t WriteBuffer[BUFFER_SIZE + 1] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
+    uint8_t ReadBuffer[BUFFER_SIZE + 1];
     uint16_t bytes_rd;
 
-    pc.printf("\n\nEEPROM demo started\n");
-    led_red = 0;
+    printf("\n\nEEPROM demo started\n");
+    printf("NB: you have to connect the RF EEPROM ANT7-M24LR-A to CN1 connector of STM32746G-Discovery board\n");
 
     // Check initialization
-    if (eep.Init() != EEPROM_OK) {
-        led_red = 1;
+    if (BSP_EEPROM_Init() != EEPROM_OK) {
         error("Initialization FAILED\n");
     } else {
-        pc.printf("Initialization PASSED\n");
+        printf("Initialization PASSED\n");
     }
 
     // Write buffer
-    if (eep.WriteBuffer(WriteBuffer, WRITE_READ_ADDR, BUFFER_SIZE) != EEPROM_OK) {
-        led_red = 1;
+    if (BSP_EEPROM_WriteBuffer(WriteBuffer, WRITE_READ_ADDR, BUFFER_SIZE) != EEPROM_OK) {
         error("Write buffer FAILED\n");
     } else {
-        pc.printf("Write buffer PASSED\n");
+        printf("Write buffer PASSED\n");
     }
 
     // Read buffer
     bytes_rd = BUFFER_SIZE;
-    if (eep.ReadBuffer(ReadBuffer, WRITE_READ_ADDR, &bytes_rd) != EEPROM_OK) {
-        led_red = 1;
+    if (BSP_EEPROM_ReadBuffer(ReadBuffer, WRITE_READ_ADDR, &bytes_rd) != EEPROM_OK) {
         error("Read buffer FAILED\n");
     } else {
         ReadBuffer[BUFFER_SIZE] = '\0';
-        pc.printf("Read buffer PASSED\n");
-        pc.printf("Buffer read = [%s]\n", ReadBuffer);
-        pc.printf("Bytes read = %d\n", bytes_rd);
-    }
-
-    while(1) {
-        led_green = !led_green;
-        wait(1);
+        printf("Read buffer PASSED\n");
+        printf("Buffer read = [%s]\n", ReadBuffer);
+        printf("Bytes read = %d\n", bytes_rd);
     }
 }