firmware/isp.h

   1 /*
   2   isp.h - part of USBasp
   3
   4   Autor..........: Thomas Fischl <tfischl@gmx.de>
   5   Description....: Provides functions for communication/programming
   6                    over ISP interface
   7   Licence........: GNU GPL v2 (see Readme.txt)
   8   Creation Date..: 2005-02-23
   9   Last change....: 2007-07-23
  10 */
  11
  12 #ifndef __isp_h_included__
  13 #define __isp_h_included__
  14
  15 #ifndef uchar
  16 #define uchar   unsigned char
  17 #endif
  18
  19 #define ISP_OUT   PORTB
  20 #define ISP_IN    PINB
  21 #define ISP_DDR   DDRB
  22 #define ISP_RST   PB2
  23 #define ISP_MOSI  PB3
  24 #define ISP_MISO  PB4
  25 #define ISP_SCK   PB5
  26
  27 #define ISP_DELAY 1
  28 #define ISP_SCK_SLOW 0
  29 #define ISP_SCK_FAST 1
  30
  31 /* Prepare connection to target device */
  32 void ispConnect();
  33
  34 /* Close connection to target device */
  35 void ispDisconnect();
  36
  37 /* read an write a byte from isp using software (slow) */
  38 uchar ispTransmit_sw(uchar send_byte);
  39
  40 /* read an write a byte from isp using hardware (fast) */
  41 uchar ispTransmit_hw(uchar send_byte);
  42
  43 /* enter programming mode */
  44 uchar ispEnterProgrammingMode();
  45
  46 /* read byte from eeprom at given address */
  47 uchar ispReadEEPROM(unsigned int address);
  48
  49 /* write byte to flash at given address */
  50 uchar ispWriteFlash(unsigned long address, uchar data, uchar pollmode);
  51
  52 uchar ispFlushPage(unsigned long address, uchar pollvalue);
  53
  54 /* read byte from flash at given address */
  55 uchar ispReadFlash(unsigned long address);
  56
  57 /* write byte to eeprom at given address */
  58 uchar ispWriteEEPROM(unsigned int address, uchar data);
  59
  60 /* pointer to sw or hw transmit function */
  61 uchar (*ispTransmit)(uchar);
  62
  63 /* set SCK speed. call before ispConnect! */
  64 void ispSetSCKOption(uchar sckoption);
  65
  66 #endif /* __isp_h_included__ */