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Submitted by <ladyada@gmail.com>: 

Patch #6233: Add support for USBtinyISP programmer
* usbtiny.c: New file.
* usbtiny.h: (Ditto.)
* Makefile.am: Include usbtiny into the build.
* avrdude.conf.in: (Ditto.)
* config_gram.y: (Ditto.)
* lexer.l: (Ditto.)
* avrdude.1: Document the usbtiny support.
* doc/avrdude.texi: (Ditto.)


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@749 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch 2007-10-29 18:03:02 +00:00
parent 3aa7889d2a
commit 190a4b87e8
10 changed files with 600 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
ChangeLog
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@ -1,3 +1,16 @@
2007-10-29 Joerg Wunsch <j@uriah.heep.sax.de>
Submitted by <ladyada@gmail.com>:
Patch #6233: Add support for USBtinyISP programmer
* usbtiny.c: New file.
* usbtiny.h: (Ditto.)
* Makefile.am: Include usbtiny into the build.
* avrdude.conf.in: (Ditto.)
* config_gram.y: (Ditto.)
* lexer.l: (Ditto.)
* avrdude.1: Document the usbtiny support.
* doc/avrdude.texi: (Ditto.)
2007-10-29 Joerg Wunsch <j@uriah.heep.sax.de>
* doc/avrdude.texi: Sort list of supported programmers into

2
Makefile.am
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@ -138,6 +138,8 @@ libavrdude_a_SOURCES = \
usbasp.h \
usbdevs.h \
usb_libusb.c \
usbtiny.h \
usbtiny.c \
update.h \
update.c

1
NEWS
View File

@ -7,6 +7,7 @@ Approximate change log for AVRDUDE by version.
----------------------------------------------------------------------
Current:
* Add support for the USBtinyISP programmer (patch #6233)
Version 5.4:

12
avrdude.1
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@ -1,6 +1,6 @@
.\"
.\" avrdude - A Downloader/Uploader for AVR device programmers
.\" Copyright (C) 2001, 2002, 2003, 2005, 2006 Joerg Wunsch
.\" Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007 Joerg Wunsch
.\"
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
@ -19,7 +19,7 @@
.\"
.\" $Id$
.\"
.Dd DATE October 26, 2006
.Dd DATE October 29, 2007
.Os
.Dt AVRDUDE 1
.Sh NAME
@ -127,11 +127,11 @@ frequency, so the
.Fl B Ar bitclock
option might be required to achieve a stable ISP communication.
.Pp
The USBasp ISP adapter is also supported, provided
The USBasp ISP and USBtinyISP adapters are also supported, provided
.Nm avrdude
has been compiled with libusb support.
It features a simple firwmare-only USB implementation, running on
an ATmega8 (or ATmega88).
They both feature simple firwmare-only USB implementations, running on
an ATmega8 (or ATmega88), or ATtiny2313, respectively.
.Pp
Input files can be provided, and output files can be written in
different file formats, such as raw binary files containing the data
@ -817,6 +817,6 @@ option) requires a prior chip erase.
This is an inherent feature of the way JTAG EEPROM programming works.
This also applies to the STK500 in parallel programming mode.
.Pp
The USBasp driver does not offer any option to distinguish multiple
The USBasp and USBtinyISP drivers do not offer any option to distinguish multiple
devices connected simultaneously, so effectively only a single device
is supported.

6
avrdude.conf.in
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@ -377,6 +377,12 @@ programmer
type = usbasp;
;
programmer
id = "usbtiny";
desc = "USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/";
type = usbtiny;
;
programmer
id = "butterfly";
desc = "Atmel Butterfly Development Board";

8
config_gram.y
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@ -42,6 +42,7 @@
#include "avr910.h"
#include "butterfly.h"
#include "usbasp.h"
#include "usbtiny.h"
#include "avr.h"
#include "jtagmkI.h"
#include "jtagmkII.h"
@ -136,6 +137,7 @@ static int parse_cmdbits(OPCODE * op);
%token K_STK500GENERIC
%token K_AVR910
%token K_USBASP
%token K_USBTINY
%token K_BUTTERFLY
%token K_TYPE
%token K_VCC
@ -421,6 +423,12 @@ prog_parm :
}
} |
K_TYPE TKN_EQUAL K_USBTINY {
{
usbtiny_initpgm(current_prog);
}
} |
K_TYPE TKN_EQUAL K_BUTTERFLY {
{
butterfly_initpgm(current_prog);

3
doc/avrdude.texi
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@ -462,6 +462,9 @@ Atmel STK500, running a version 2.x firmware
@item @code{usbasp} @tab
USBasp,@*
@url{http://www.fischl.de/usbasp/}
@item @code{usbtiny} @tab
USBtiny simple USB programmer,@*
@url{http://www.ladyada.net/make/usbtinyisp/}
@item @code{xil} @tab
Xilinx JTAG cable
@end multitable

1
lexer.l
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@ -120,6 +120,7 @@ allowfullpagebitstream { yylval=NULL; return K_ALLOWFULLPAGEBITSTREAM; }
avr910 { yylval=NULL; return K_AVR910; }
avr910_devcode { yylval=NULL; return K_AVR910_DEVCODE; }
usbasp { yylval=NULL; return K_USBASP; }
usbtiny { yylval=NULL; return K_USBTINY; }
bank_size { yylval=NULL; return K_PAGE_SIZE; }
banked { yylval=NULL; return K_PAGED; }
baudrate { yylval=NULL; return K_BAUDRATE; }

484
usbtiny.c Normal file
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@ -0,0 +1,484 @@
/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2007 Dick Streefland, adapted for 5.4 by Limor Fried
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Driver for "usbtiny"-type programmers
* Please see http://www.xs4all.nl/~dicks/avr/usbtiny/
* and http://www.ladyada.net/make/usbtinyisp/
* For example schematics and detailed documentation
*/
#include "ac_cfg.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <unistd.h>
#include "avrdude.h"
#include "avr.h"
#include "pgm.h"
#include "usbtiny.h"
#if defined(HAVE_LIBUSB) // we use LIBUSB to talk to the board
#include <usb.h>
typedef unsigned int uint_t;
typedef unsigned long ulong_t;
extern int avr_write_byte_default ( PROGRAMMER* pgm, AVRPART* p,
AVRMEM* mem, ulong_t addr,
unsigned char data );
static usb_dev_handle* usb_handle;
static int sck_period;
static int chunk_size;
// ----------------------------------------------------------------------
// Wrapper for simple usb_control_msg messages
static int usb_control (unsigned int requestid, unsigned int val, unsigned int index )
{
int nbytes;
nbytes = usb_control_msg( usb_handle,
USB_ENDPOINT_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
requestid,
val, index, // 2 bytes each of data
NULL, 0, // no data buffer in control messge
USB_TIMEOUT ); // default timeout
if(nbytes < 0){
fprintf(stderr, "%s: error: usbtiny_transmit: %s\n", progname, usb_strerror());
exit(1);
}
return nbytes;
}
// Wrapper for simple usb_control_msg messages to receive data from programmer
static int usb_in (unsigned int requestid, unsigned int val, unsigned int index,
unsigned char* buffer, int buflen, int bitclk )
{
int nbytes;
int timeout;
// calculate the amout of time we expect the process to take by
// figuring the bit-clock time and buffer size and adding to the standard USB timeout.
timeout = USB_TIMEOUT + (buflen * bitclk) / 1000;
nbytes = usb_control_msg( usb_handle,
USB_ENDPOINT_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
requestid,
val, index,
(char *)buffer, buflen,
timeout);
if (nbytes != buflen) {
fprintf(stderr, "%s: error: usbtiny_receive: %s (expected %d, got %d)\n",
progname, usb_strerror(), buflen, nbytes);
exit(1);
}
return nbytes;
}
// Wrapper for simple usb_control_msg messages to send data to programmer
static int usb_out (unsigned int requestid, unsigned int val, unsigned int index,
unsigned char* buffer, int buflen, int bitclk )
{
int nbytes;
int timeout;
// calculate the amout of time we expect the process to take by
// figuring the bit-clock time and buffer size and adding to the standard USB timeout.
timeout = USB_TIMEOUT + (buflen * bitclk) / 1000;
nbytes = usb_control_msg( usb_handle,
USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
requestid,
val, index,
(char *)buffer, buflen,
timeout);
if (nbytes != buflen) {
fprintf(stderr, "%s: error: usbtiny_send: %s (expected %d, got %d)\n",
progname, usb_strerror(), buflen, nbytes);
exit(1);
}
return nbytes;
}
// Sometimes we just need to know the SPI command for the part to perform
// a function. Here we wrap this request for an operation so that we
// can just specify the part and operation and it'll do the right stuff
// to get the information from AvrDude and send to the USBtiny
static int usbtiny_avr_op (PROGRAMMER * pgm, AVRPART * p,
int op,
unsigned char res[4])
{
unsigned char cmd[4];
if (p->op[op] == NULL) {
fprintf( stderr, "Operation %d not defined for this chip!\n", op );
return -1;
}
memset(cmd, 0, sizeof(cmd));
avr_set_bits(p->op[op], cmd);
return pgm->cmd(pgm, cmd, res);
}
// ----------------------------------------------------------------------
/* Find a device with the correct VID/PID match for USBtiny */
static int usbtiny_open(PROGRAMMER* pgm, char* name)
{
struct usb_bus *bus;
struct usb_device *dev = 0;
usb_init(); // initialize the libusb system
usb_find_busses(); // have libusb scan all the usb busses available
usb_find_devices(); // have libusb scan all the usb devices available
usb_handle = NULL;
// now we iterate through all the busses and devices
for ( bus = usb_busses; bus; bus = bus->next ) {
for ( dev = bus->devices; dev; dev = dev->next ) {
if (dev->descriptor.idVendor == USBTINY_VENDOR
&& dev->descriptor.idProduct == USBTINY_PRODUCT ) { // found match?
usb_handle = usb_open(dev); // attempt to connect to device
// wrong permissions or something?
if (!usb_handle) {
fprintf(stderr, "%s: Warning: cannot open USB device: %s\n",
progname, usb_strerror());
continue;
}
}
}
}
if (!usb_handle) {
fprintf( stderr, "%s: Error: Could not find USBtiny device (0x%x/0x%x)\n",
progname, USBTINY_VENDOR, USBTINY_PRODUCT );
exit(1);
}
return 0; // If we got here, we must have found a good USB device
}
/* Clean up the handle for the usbtiny */
static void usbtiny_close ( PROGRAMMER* pgm )
{
if (! usb_handle) {
return; // not a valid handle, bail!
}
usb_close(usb_handle); // ask libusb to clean up
usb_handle = NULL;
}
/* A simple calculator function determines the maximum size of data we can
shove through a USB connection without getting errors */
static void usbtiny_set_chunk_size (int period)
{
chunk_size = CHUNK_SIZE; // start with the maximum (default)
while (chunk_size > 8 && period > 16) {
// Reduce the chunk size for a slow SCK to reduce
// the maximum time of a single USB transfer.
chunk_size >>= 1;
period >>= 1;
}
}
/* Given a SCK bit-clock speed (in useconds) we verify its an OK speed and tell the
USBtiny to update itself to the new frequency */
static int usbtiny_set_sck_period (PROGRAMMER *pgm, double v)
{
sck_period = (int)(v * 1e6 + 0.5); // convert from us to 'int', the 0.5 is for rounding up
// Make sure its not 0, as that will confuse the usbtiny
if (sck_period < SCK_MIN)
sck_period = SCK_MIN;
// We can't go slower, due to the byte-size of the clock variable
if (sck_period > SCK_MAX)
sck_period = SCK_MAX;
printf( "%s: Setting SCK period to %d usec\n", progname, sck_period );
// send the command to the usbtiny device.
usb_control(USBTINY_POWERUP, sck_period, RESET_LOW); // MEME: for at90's fix resetstate?
// with the new speed, we'll have to update how much data we send per usb transfer
usbtiny_set_chunk_size(sck_period);
return 0;
}
static int usbtiny_initialize (PROGRAMMER *pgm, AVRPART *p )
{
unsigned char res[4]; // store the response from usbtinyisp
// Check for bit-clock and tell the usbtiny to adjust itself
if (pgm->bitclock > 0.0) {
// -B option specified: convert to valid range for sck_period
usbtiny_set_sck_period(pgm, pgm->bitclock);
} else {
// -B option not specified: use default
sck_period = SCK_DEFAULT;
if (verbose) {
printf( "%s: Using SCK period of %d usec\n",
progname, sck_period );
}
usb_control( USBTINY_POWERUP, sck_period, RESET_LOW );
usbtiny_set_chunk_size(sck_period);
}
// Let the device wake up.
usleep(50000);
// Attempt to use the underlying avrdude methods to connect (MEME: is this kosher?)
if (! usbtiny_avr_op(pgm, p, AVR_OP_PGM_ENABLE, res)) {
// no response, RESET and try again
usb_control(USBTINY_POWERUP, sck_period, RESET_HIGH);
usb_control(USBTINY_POWERUP, sck_period, RESET_LOW);
usleep(50000);
if ( ! usbtiny_avr_op( pgm, p, AVR_OP_PGM_ENABLE, res)) {
// give up
return -1;
}
}
return 0;
}
/* Tell the USBtiny to release the output pins, etc */
static void usbtiny_powerdown(PROGRAMMER * pgm)
{
if (!usb_handle) {
return; // wasn't connected in the first place
}
usb_control(USBTINY_POWERDOWN, 0, 0); // Send USB control command to device
}
/* Send a 4-byte SPI command to the USBtinyISP for execution
This procedure is used by higher-level Avrdude procedures */
static int usbtiny_cmd(PROGRAMMER * pgm, unsigned char cmd[4], unsigned char res[4])
{
int nbytes;
// Make sure its empty so we don't read previous calls if it fails
memset(res, '\0', sizeof(res) );
nbytes = usb_in( USBTINY_SPI,
(cmd[1] << 8) | cmd[0], // convert to 16-bit words
(cmd[3] << 8) | cmd[2], // "
res, sizeof(res), 8 * sck_period );
if (verbose > 1) {
// print out the data we sent and received
printf( "CMD: [%02x %02x %02x %02x] [%02x %02x %02x %02x]\n",
cmd[0], cmd[1], cmd[2], cmd[3],
res[0], res[1], res[2], res[3] );
}
return ((nbytes == sizeof(res)) && // should have read 4 bytes
res[2] == cmd[1]); // AVR's do a delayed-echo thing
}
/* Send the chip-erase command */
static int usbtiny_chip_erase(PROGRAMMER * pgm, AVRPART * p)
{
unsigned char res[4];
if (p->op[AVR_OP_CHIP_ERASE] == NULL) {
fprintf(stderr, "Chip erase instruction not defined for part \"%s\"\n",
p->desc);
return -1;
}
// get the command for erasing this chip and transmit to avrdude
if (! usbtiny_avr_op( pgm, p, AVR_OP_CHIP_ERASE, res )) {
return -1;
}
usleep( p->chip_erase_delay );
// prepare for further instruction
pgm->initialize(pgm, p);
return 0;
}
// These are required functions but don't actually do anything
static void usbtiny_enable ( PROGRAMMER* pgm ) {}
static void usbtiny_disable ( PROGRAMMER* pgm ) {}
/* To speed up programming and reading, we do a 'chunked' read.
* We request just the data itself and the USBtiny uses the SPI function
* given to read in the data. Much faster than sending a 4-byte SPI request
* per byte
*/
static int usbtiny_paged_load (PROGRAMMER * pgm, AVRPART * p, AVRMEM* m,
int page_size, int n_bytes )
{
int i;
int chunk;
int function;
// First determine what we're doing
if (strcmp( m->desc, "flash" ) == 0) {
function = USBTINY_FLASH_READ;
} else {
function = USBTINY_EEPROM_READ;
}
for (i = 0; i < n_bytes; i += chunk) {
chunk = chunk_size; // start with the maximum chunk size possible
// If we want to xmit less than a chunk, thats OK
if (chunk > n_bytes-i)
chunk = n_bytes - i;
// Send the chunk of data to the USBtiny with the function we want
// to perform
usb_in(function, // EEPROM or flash
0, // delay between SPI commands
i, // index
m->buf + i, // pointer to where we store data
chunk, // number of bytes
32 * sck_period); // each byte gets turned into a 4-byte SPI cmd
// usb_in() multiplies this per byte.
// Tell avrdude how we're doing to provide user feedback
report_progress(i + chunk, n_bytes, NULL );
}
return n_bytes;
}
/* To speed up programming and reading, we do a 'chunked' write.
* We send just the data itself and the USBtiny uses the SPI function
* given to write the data. Much faster than sending a 4-byte SPI request
* per byte.
*/
static int usbtiny_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
int page_size, int n_bytes)
{
int i;
int chunk; // Size of data to write at once
int next;
int function; // which SPI command to use
int delay; // delay required between SPI commands
// First determine what we're doing
if (strcmp( m->desc, "flash" ) == 0) {
function = USBTINY_FLASH_WRITE;
} else {
function = USBTINY_EEPROM_WRITE;
}
delay = 0;
if (! m->paged) {
// Does this chip not support paged writes?
i = (m->readback[1] << 8) | m->readback[0];
usb_control( USBTINY_POLL_BYTES, i, 0 );
delay = m->max_write_delay;
}
for (i=0; i < n_bytes; i=next) {
// start with the max chunk size
chunk = chunk_size;
// we can only write a page at a time anyways
if (m->paged && chunk > page_size)
chunk = page_size;
// if there's less data remaining than one chunk
if (chunk > n_bytes-i)
chunk = n_bytes - i;
usb_out(function, // Flash or EEPROM
delay, // How much to wait between each byte
i, // Index of data
m->buf + i, // Pointer to data
chunk, // Number of bytes to write
32 * sck_period + delay // each byte gets turned into a
// 4-byte SPI cmd usb_in() multiplies
// this per byte. Then add the cmd-delay
);
next = i + chunk; // Calculate what address we're at now
if (m->paged
&& ((next % page_size) == 0 || next == n_bytes) ) {
// If we're at a page boundary, send the SPI command to flush it.
avr_write_page(pgm, p, m, (unsigned long) i);
}
report_progress( next, n_bytes, NULL );
}
return n_bytes;
}
extern void usbtiny_initpgm ( PROGRAMMER* pgm )
{
strcpy(pgm->type, "USBtiny");
/* Mandatory Functions */
pgm->initialize = usbtiny_initialize;
pgm->enable = usbtiny_enable;
pgm->disable = usbtiny_disable;
pgm->program_enable = NULL;
pgm->chip_erase = usbtiny_chip_erase;
pgm->cmd = usbtiny_cmd;
pgm->open = usbtiny_open;
pgm->close = usbtiny_close;
pgm->read_byte = avr_read_byte_default;
pgm->write_byte = avr_write_byte_default;
/* Optional Functions */
pgm->powerup = NULL;
pgm->powerdown = usbtiny_powerdown;
pgm->paged_load = usbtiny_paged_load;
pgm->paged_write = usbtiny_paged_write;
pgm->set_sck_period = usbtiny_set_sck_period;
}
#else /* !HAVE_LIBUSB */
// Give a proper error if we were not compiled with libusb
static int usbtiny_nousb_open(struct programmer_t *pgm, char * name)
{
fprintf(stderr, "%s: error: no usb support. Please compile again with libusb installed.\n",
progname);
exit(1);
}
void usbtiny_initpgm(PROGRAMMER * pgm)
{
strcpy(pgm->type, "usbtiny");
pgm->open = usbtiny_nousb_open;
}
#endif /* HAVE_LIBUSB */

76
usbtiny.h Normal file
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@ -0,0 +1,76 @@
/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2007 Limor Fried
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef usbtiny_h
#define usbtiny_h
#include "avrpart.h"
// these are specifically assigned to USBtiny,
// if you need your own VID and PIDs you can get them for cheap from
// www.mecanique.co.uk so please don't reuse these. Thanks!
#define USBTINY_VENDOR 0x1781
#define USBTINY_PRODUCT 0x0C9F
// Generic requests to the USBtiny
#define USBTINY_ECHO 0 // echo test
#define USBTINY_READ 1 // read byte (wIndex:address)
#define USBTINY_WRITE 2 // write byte (wIndex:address, wValue:value)
#define USBTINY_CLR 3 // clear bit (wIndex:address, wValue:bitno)
#define USBTINY_SET 4 // set bit (wIndex:address, wValue:bitno)
// Programming requests
#define USBTINY_POWERUP 5 // apply power (wValue:SCK-period, wIndex:RESET)
#define USBTINY_POWERDOWN 6 // remove power from chip
#define USBTINY_SPI 7 // issue SPI command (wValue:c1c0, wIndex:c3c2)
#define USBTINY_POLL_BYTES 8 // set poll bytes for write (wValue:p1p2)
#define USBTINY_FLASH_READ 9 // read flash (wIndex:address)
#define USBTINY_FLASH_WRITE 10 // write flash (wIndex:address, wValue:timeout)
#define USBTINY_EEPROM_READ 11 // read eeprom (wIndex:address)
#define USBTINY_EEPROM_WRITE 12 // write eeprom (wIndex:address, wValue:timeout)
// Flags to indicate how to set RESET on power up
#define RESET_LOW 0
#define RESET_HIGH 1
// The SCK speed can be set by avrdude, to allow programming of slow-clocked parts
#define SCK_MIN 1 // usec delay (target clock >= 4 MHz)
#define SCK_MAX 250 // usec (target clock >= 16 KHz)
#define SCK_DEFAULT 10 // usec (target clock >= 0.4 MHz)
// How much data, max, do we want to send in one USB packet?
#define CHUNK_SIZE 128 // must be power of 2 less than 256
// The default USB Timeout
#define USB_TIMEOUT 500 // msec
#ifdef __cplusplus
extern "C" {
#endif
void usbtiny_initpgm (PROGRAMMER * pgm);
#ifdef __cplusplus
}
#endif
#endif /* usbtiny_h */