Diff: old.inc

Revision:

2:7dfc8dd6aab3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/old.inc	Thu Oct 08 13:36:17 2015 +0000
@@ -0,0 +1,175 @@
+in main.cpp
+
+/*
+    printf("INIT EEPROM\r\n");
+    init_eeprom();
+*/
+
+/****************** EEPROM ******************/
+/*
+eeprom_t eeprom(p7, p5, p6, p9, PAGENUMBER, PAGESIZE);
+
+t_eeprom_data eeprom_data[] = {
+    //SIZE,   ADDR
+    {    2,      0}, //SOFTWARE VERSION
+    {    2,      2}, //DATA VERSION
+    {    4,      4}, //NUMBER OF STARTS
+    {    4,     20}, //T_MISSING
+    {    4,     40}, //ENGINE_LAST_MISSING
+    {    4,     44}  //BODY_LAST_MISSING
+};
+
+void init_eeprom ()
+{
+    eeprom.init(eeprom_data, sizeof(eeprom_data)/sizeof(t_eeprom_data));
+
+    uint16 sw = 0;
+    uint16 dd = 0;
+    uint32 num = 0;
+    if ((eeprom.read(EEPROM_DATA_SW_VERS, (uint8*)(&sw)) != 2) ||
+        (eeprom.read(EEPROM_DATA_DD_VERS, (uint8*)(&dd)) != 2) ||
+        (sw != SW_VERSION) || (dd != DD_VERSION))
+    {
+        //error
+        eeprom.reset();
+        sw = SW_VERSION;
+        eeprom.write(EEPROM_DATA_SW_VERS, (uint8*)(&sw));
+        dd = DD_VERSION;
+        eeprom.write(EEPROM_DATA_DD_VERS, (uint8*)(&dd));
+    }
+
+    if (eeprom.read(EEPROM_DATA_NSTARTS, (uint8*)(&num)) != 4)
+        num = 0xffffffff;
+    num++;
+    eeprom.write(EEPROM_DATA_NSTARTS, (unsigned char*)(&num));
+}
+*/
+
+in eeprom.hpp
+
+#ifndef __EEPROM_H__
+#define __EEPROM_H__  
+/*
+#include "common_types.h"
+
+#include "Ser25lcxxx.h"
+
+#define EEPROM_ENTRY_NOT_VALID      ((int8)(-1))
+#define EEPROM_ERR_READ             ((int8)(-2))
+#define EEPROM_ERR_WRITE            ((int8)(-3))
+
+typedef struct {
+    uint8  size;            // number of bytes
+    uint32 addr;            // eeprom address
+} t_eeprom_data;
+
+class eeprom_t
+{
+
+    t_eeprom_data *eeprom_data; // configuration table of the eeprom
+
+    Ser25LCxxx memory; // memory
+    
+    uint32 n; // total number of stored items
+    uint32 max_pages; // total number of pages in eeprom
+    uint32 page_size; // size of each page
+    
+    uint32 n_used_pages; // total number of used pages
+
+public:
+
+    eeprom_t (PinName sck, PinName si, PinName so, PinName enable,
+              int pagenumber, int pagesize):
+                    memory(sck, si, so, enable, pagenumber, pagesize)
+    {
+        max_pages = pagenumber;
+        page_size = pagesize;
+    }
+
+    bool init (t_eeprom_data *data, unsigned int num);
+
+    bool reset();
+
+    int8 read (uint32 id, uint8* dst);
+
+    int8 write (uint32 id, const uint8* src);
+    
+};
+*/
+#endif //__EEPROM_H__
+
+in eeprom.cpp
+
+/*
+#include "eeprom.hpp"
+
+bool eeprom_t::init (t_eeprom_data *data, unsigned int num)
+{
+    if (!memory.isFullyWritable())
+        memory.setFullyWritable();
+
+    n = num;
+    eeprom_data = data;
+    uint32 max_addr = 0;
+
+    for (int i = 0; i < n; i++) {
+//        unsigned int buffer = 0;
+//        unsigned int nread = memory.read(eeprom_data[i].addr,
+//                                         eeprom_data[i].size,
+//                                         (unsigned char*)(&buffer));
+//        if (nread == eeprom_data[i].size)
+//            local_values[i] = buffer;
+        if (eeprom_data[i].addr > max_addr)
+            max_addr = eeprom_data[i].addr + eeprom_data[i].size;
+    }
+
+    n_used_pages = max_addr / page_size + 1;
+
+    return true;
+}
+
+bool eeprom_t::reset ()
+{
+   for (int i = 0; i <= n_used_pages; i++) {
+        __disable_irq();
+        memory.clearPage(i);
+        __enable_irq();
+    }
+
+    return true;
+}
+
+int8 eeprom_t::read (uint32 id, uint8* dst)
+{
+    if (id >= n)
+        return EEPROM_ENTRY_NOT_VALID;
+
+//critical section
+    __disable_irq();
+    int num = memory.read(eeprom_data[id].addr, eeprom_data[id].size, dst);
+    __enable_irq();
+//critical section
+
+    if (num == eeprom_data[id].size)
+        return num;
+
+    return EEPROM_ERR_READ;
+}
+
+int8 eeprom_t::write (uint32 id, const uint8* src)
+{
+    if (id >= n)
+        return EEPROM_ENTRY_NOT_VALID;
+
+    //critical section
+    __disable_irq();
+    int num = memory.write(eeprom_data[id].addr, eeprom_data[id].size, src);
+    __enable_irq();
+    //critical section
+
+    if (num != eeprom_data[id].size)
+        return EEPROM_ERR_WRITE;
+
+    return num;
+}
+*/