mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-11-16 14:54:59 +00:00
41 lines
1.8 KiB
C
41 lines
1.8 KiB
C
|
#define EEPROM_ADDR 0x51
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Macros
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// the 3684 DVK board uses port pin PA7 as an EEPROM write-protect enable/disable.
|
||
|
|
// If your design uses a different pin, modify the following macros accordingly.
|
||
|
|
#define EEPROM_ENABLE_WRITE_PROTECT() OEA &= ~0x80 // float PA7
|
||
|
|
#define EEPROM_DISABLE_WRITE_PROTECT() PA7 = 0; OEA |= 0x80 // drive PA7 low
|
||
|
|
#define MSB(word) (BYTE)(((WORD)(word) >> 8) & 0xff)
|
||
|
|
#define LSB(word) (BYTE)((WORD)(word) & 0xff)
|
||
|
|
|
||
|
|
#define SWAP_ENDIAN(word) ((BYTE*)&word)[0] ^= ((BYTE*)&word)[1];\
|
||
|
|
((BYTE*)&word)[1] ^= ((BYTE*)&word)[0];\
|
||
|
|
((BYTE*)&word)[0] ^= ((BYTE*)&word)[1]
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Function Prototypes
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void EEWaitForStop();
|
||
|
|
BYTE EEWaitForAck();
|
||
|
|
static void EEStartAndAddr();
|
||
|
|
extern void WaitForEEPROMWrite();
|
||
|
|
BYTE EEPROMWritePage(WORD addr, BYTE xdata * ptr, BYTE len);
|
||
|
|
BYTE EEPROMRead(WORD addr, BYTE length, BYTE xdata *buf);
|
||
|
|
void WaitForEEPROMWrite2();
|
||
|
|
BYTE EEWaitForDone();
|
||
|
|
BYTE EEPROMGetPageSize();
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Global Variables
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
extern BYTE DB_Addr; // Dual Byte Address stat
|
||
|
|
extern BYTE I2C_Addr; // I2C address
|
||
|
|
extern BYTE EE_Page_Size; // EEPROM page size
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Global Constants
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
#define SERIAL_ADDR 0x50
|