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....: 2009-02-28
  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 /* Prepare connection to target device */
  28 void ispConnect();
  29
  30 /* Close connection to target device */
  31 void ispDisconnect();
  32
  33 /* read an write a byte from isp using software (slow) */
  34 uchar ispTransmit_sw(uchar send_byte);
  35
  36 /* read an write a byte from isp using hardware (fast) */
  37 uchar ispTransmit_hw(uchar send_byte);
  38
  39 /* enter programming mode */
  40 uchar ispEnterProgrammingMode();
  41
  42 /* read byte from eeprom at given address */
  43 uchar ispReadEEPROM(unsigned int address);
  44
  45 /* write byte to flash at given address */
  46 uchar ispWriteFlash(unsigned long address, uchar data, uchar pollmode);
  47
  48 uchar ispFlushPage(unsigned long address, uchar pollvalue);
  49
  50 /* read byte from flash at given address */
  51 uchar ispReadFlash(unsigned long address);
  52
  53 /* write byte to eeprom at given address */
  54 uchar ispWriteEEPROM(unsigned int address, uchar data);
  55
  56 /* pointer to sw or hw transmit function */
  57 uchar (*ispTransmit)(uchar);
  58
  59 /* set SCK speed. call before ispConnect! */
  60 void ispSetSCKOption(uchar sckoption);
  61
  62 #endif /* __isp_h_included__ */