Mikroelektronika MIKROE-742 데이터 시트

208

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure Cf_Read_Init(address : dword; sector_count : byte);

Nothing.

Initializes CF card for reading.

Parameters : 

- 

address

: the first sector to be prepared for reading operation. 

- 

sector_count

: number of sectors to be prepared for reading operation. 

The corresponding MCU ports must be appropriately initialized for CF card. See
Cf_Init.

// initialize compact flash for reading from sector 590
Cf_Read_Init(590, 1);

function CF_Read_Byte() : byte;

Returns a byte read from Compact Flash sector buffer.

Note: Higher byte of the 

unsigned

return value is cleared. 

Reads one byte from Compact Flash sector buffer location currently pointed to
by internal read pointers. These pointers will be autoicremented upon reading.

The corresponding MCU ports must be appropriately initialized for CF card. See
Cf_Init

CF card must be initialized for reading operation. See Cf_Read_Init.

// Read a byte from compact flash:
var data : byte;
...

data := Cf_Read_Byte();