mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-15 20:50:33 +00:00
41 lines
1.8 KiB
C
41 lines
1.8 KiB
C
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#define EEPROM_ADDR 0x51
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//-----------------------------------------------------------------------------
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// Macros
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//-----------------------------------------------------------------------------
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// the 3684 DVK board uses port pin PA7 as an EEPROM write-protect enable/disable.
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// If your design uses a different pin, modify the following macros accordingly.
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#define EEPROM_ENABLE_WRITE_PROTECT() OEA &= ~0x80 // float PA7
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#define EEPROM_DISABLE_WRITE_PROTECT() PA7 = 0; OEA |= 0x80 // drive PA7 low
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#define MSB(word) (BYTE)(((WORD)(word) >> 8) & 0xff)
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#define LSB(word) (BYTE)((WORD)(word) & 0xff)
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#define SWAP_ENDIAN(word) ((BYTE*)&word)[0] ^= ((BYTE*)&word)[1];\
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((BYTE*)&word)[1] ^= ((BYTE*)&word)[0];\
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((BYTE*)&word)[0] ^= ((BYTE*)&word)[1]
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//-----------------------------------------------------------------------------
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// Function Prototypes
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//-----------------------------------------------------------------------------
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void EEWaitForStop();
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BYTE EEWaitForAck();
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static void EEStartAndAddr();
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extern void WaitForEEPROMWrite();
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BYTE EEPROMWritePage(WORD addr, BYTE xdata * ptr, BYTE len);
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BYTE EEPROMRead(WORD addr, BYTE length, BYTE xdata *buf);
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void WaitForEEPROMWrite2();
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BYTE EEWaitForDone();
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BYTE EEPROMGetPageSize();
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//-----------------------------------------------------------------------------
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// Global Variables
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//-----------------------------------------------------------------------------
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extern BYTE DB_Addr; // Dual Byte Address stat
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extern BYTE I2C_Addr; // I2C address
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extern BYTE EE_Page_Size; // EEPROM page size
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//-----------------------------------------------------------------------------
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// Global Constants
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//-----------------------------------------------------------------------------
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#define SERIAL_ADDR 0x50
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