AVRISP-MKII.txt 10.3 KB
Newer Older
1
2
3
4
5
/** \file
 *
 *  This file contains special DoxyGen information for the generation of the main page and other special
 *  documentation pages. It is not a project source file.
 */
6

7
8
9
10
11
12
/** \mainpage AVRISP MKII Programmer Project
 *
 *  \section SSec_Compat Project Compatibility:
 *
 *  The following list indicates what microcontrollers are compatible with this project.
 *
13
14
15
 *  - Series 7 USB AVRs (AT90USBxxx7)
 *  - Series 6 USB AVRs (AT90USBxxx6)
 *  - Series 4 USB AVRs (ATMEGAxxU4)
16
 *  - Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2) - <i>8KB versions with reduced features only</i>
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 *
 *  \section SSec_Info USB Information:
 *
 *  The following table gives a rundown of the USB utilization of this project.
 *
 * <table>
 *  <tr>
 *   <td><b>USB Mode:</b></td>
 *   <td>Device</td>
 *  </tr>
 *  <tr>
 *   <td><b>USB Class:</b></td>
 *   <td>Vendor Specific Class</td>
 *  </tr>
31
 *  <tr>
32
33
34
35
36
37
38
39
40
41
42
43
44
 *   <td><b>USB Subclass:</b></td>
 *   <td>N/A</td>
 *  </tr>
 *  <tr>
 *   <td><b>Relevant Standards:</b></td>
 *   <td>Atmel AVRISP MKII Protocol Specification</td>
 *  </tr>
 *  <tr>
 *   <td><b>Usable Speeds:</b></td>
 *   <td>Full Speed Mode</td>
 *  </tr>
 * </table>
 *
45
 *  \section SSec_Description Project Description:
46
47
48
49
50
51
52
53
54
55
56
57
 *
 *  Firmware for an AVRStudio compatible AVRISP-MKII clone programmer. This project will enable the USB AVR series of
 *  microcontrollers to act as a clone of the official Atmel AVRISP-MKII programmer, usable within AVRStudio. In its
 *  most basic form, it allows for the programming of 5V AVRs from within AVRStudio with no special hardware other than
 *  the USB AVR and the parts needed for the USB interface. If the user desires, more advanced circuits incorporating
 *  level conversion can be made to allow for the programming of 3.3V AVR designs.
 *
 *  This device spoofs Atmel's official AVRISP-MKII device PID so that it remains compatible with Atmel's AVRISP-MKII
 *  drivers. When prompted, direct your OS to install Atmel's AVRISP-MKII drivers provided with AVRStudio.
 *
 *  Note that this design currently has the following limitations:
 *    - No reversed/shorted target connector detection and notification
58
 *    - A separate header is required for each of the ISP, PDI and TPI programming protocols that the user wishes to use
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 *
 *  On AVR models with an ADC converter, AVCC should be tied to 5V (e.g. VBUS) and the VTARGET_ADC_CHANNEL token should be
 *  set to an appropriate ADC channel number in the project makefile for VTARGET detection to operate correctly. On models
 *  without an ADC converter, VTARGET will report a fixed 5V level at all times.
 *
 *  While this application can be compiled for USB AVRs with as little as 8KB of FLASH, for full functionality 16KB or more
 *  of FLASH is required. On 8KB devices, ISP or PDI/TPI programming support can be disabled to reduce program size.
 *
 *  \section Sec_ISP ISP Connections
 *  Connections to the device for SPI programming (when enabled):
 *
 *  <table>
 *   <tr>
 *    <td><b>Programmer Pin:</b></td>
 *    <td><b>Target Device Pin:</b></td>
 *    <td><b>ISP 6 Pin Layout:</b></td>
 *   </tr>
 *   <tr>
 *    <td>MISO</td>
 *    <td>PDO</td>
 *    <td>1</td>
 *   </tr>
 *   <tr>
 *    <td>ADCx <b><sup>1</sup></b></td>
 *    <td>VTARGET</td>
 *    <td>2</td>
 *   </tr>
 *   <tr>
 *    <td>SCLK</td>
 *    <td>SCLK</td>
 *    <td>3</td>
 *   </tr>
 *   <tr>
 *    <td>MOSI</td>
 *    <td>PDI</td>
 *    <td>4</td>
 *   </tr>
 *   <tr>
 *    <td>PORTx.y <b><sup>2</sup></b></td>
 *    <td>/RESET</td>
 *    <td>5</td>
 *   </tr>
 *   <tr>
 *    <td>GND</td>
 *    <td>GND</td>
 *    <td>6</td>
 *   </tr>
 *  </table>
 *
108
109
110
 *  In addition, the AVR's OCR1A pin will generate a .5MHz clock, to act as an external rescue device clock
 *  if the fuses have been mis-set. To use the recovery clock, connect the OCR1A pin of the USB AVR to the target
 *  AVR's XTAL1 pin, and set the ISP programming speed to 125KHz (note: other ISP speeds will not work correctly).
111
112
113
114
115
 *
 *  <b><sup>1</sup></b> <i>Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only</i> \n
 *  <b><sup>2</sup></b> <i>See AUX line related tokens in the \ref SSec_Options section</i>
 *
 *  \section Sec_PDI PDI Connections
116
 *  Connections to the device for PDI programming (when enabled):
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
 *
 *  <table>
 *   <tr>
 *    <td><b>Programmer Pin:</b></td>
 *    <td><b>Target Device Pin:</b></td>
 *    <td><b>PDI 6 Pin Layout:</b></td>
 *   </tr>
 *   <tr>
 *    <td>Tx/Rx <b><sup>2</sup></b></td>
 *    <td>DATA</td>
 *    <td>1</td>
 *   </tr>
 *   <tr>
 *    <td>ADCx <b><sup>1</sup></b></td>
 *    <td>VTARGET</td>
 *    <td>2</td>
 *   </tr>
 *   <tr>
 *    <td>N/A</td>
 *    <td>N/A</td>
 *    <td>3</td>
 *   </tr>
 *   <tr>
 *    <td>N/A</td>
 *    <td>N/A</td>
 *    <td>4</td>
 *   </tr>
 *   <tr>
145
 *    <td>XCK</td>
146
147
148
149
150
151
152
153
154
155
156
157
158
159
 *    <td>CLOCK</td>
 *    <td>5</td>
 *   </tr>
 *   <tr>
 *    <td>GND</td>
 *    <td>GND</td>
 *    <td>6</td>
 *   </tr>
 *  </table>
 *
 *  <b><sup>1</sup></b> <i>Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only</i> \n
 *  <b><sup>2</sup></b> <i>The AVR's Tx and Rx become the DATA line when connected together via a pair of 220 ohm resistors</i> \n
 *
 *  \section Sec_TPI TPI Connections
160
 *  Connections to the device for TPI programming (when enabled):
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
 *
 *  <table>
 *   <tr>
 *    <td><b>Programmer Pin:</b></td>
 *    <td><b>Target Device Pin:</b></td>
 *    <td><b>TPI 6 Pin Layout:</b></td>
 *   </tr>
 *   <tr>
 *    <td>Tx/Rx <b><sup>2</sup></b></td>
 *    <td>DATA</td>
 *    <td>1</td>
 *   </tr>
 *   <tr>
 *    <td>ADCx <b><sup>1</sup></b></td>
 *    <td>VTARGET</td>
 *    <td>2</td>
 *   </tr>
 *   <tr>
179
 *    <td>XCK <b><sup>2</sup></b></td>
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
 *    <td>CLOCK</td>
 *    <td>3</td>
 *   </tr>
 *   <tr>
 *    <td>N/A</td>
 *    <td>N/A</td>
 *    <td>4</td>
 *   </tr>
 *   <tr>
 *    <td>PORTx.y <b><sup>3</sup></b></td>
 *    <td>/RESET</td>
 *    <td>5</td>
 *   </tr>
 *   <tr>
 *    <td>GND</td>
 *    <td>GND</td>
 *    <td>6</td>
 *   </tr>
 *  </table>
 *
 *  <b><sup>1</sup></b> <i>Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only</i> \n
 *  <b><sup>2</sup></b> <i>The AVR's Tx and Rx become the DATA line when connected together via a pair of 220 ohm resistors</i> \n
 *  <b><sup>3</sup></b> <i>See AUX line related tokens in the \ref SSec_Options section</i>
 *
 *  \section SSec_Options Project Options
 *
206
 *  The following defines can be found in this project, which can control the project behaviour when defined, or changed in value.
207
208
209
210
211
212
213
214
215
 *
 *  <table>
 *   <tr>
 *    <td><b>Define Name:</b></td>
 *    <td><b>Location:</b></td>
 *    <td><b>Description:</b></td>
 *   </tr>
 *   <tr>
 *    <td>AUX_LINE_PORT</td>
216
 *    <td>Makefile LUFA_OPTS</td>
217
218
219
220
221
 *    <td>PORT register for the programmer's AUX target line. The use of this line varies between the programming protocols,
 *        but is generally used for the target's /RESET line. <i>Ignored when compiled for the XPLAIN board.</i></td>
 *   </tr>
 *   <tr>
 *    <td>AUX_LINE_PIN</td>
222
 *    <td>Makefile LUFA_OPTS</td>
223
224
225
226
227
 *    <td>PIN register for the programmer's AUX target line. The use of this line varies between the programming protocols,
 *        but is generally used for the target's /RESET line. <i>Ignored when compiled for the XPLAIN board.</i></td>
 *   </tr>
 *   <tr>
 *    <td>AUX_LINE_DDR</td>
228
 *    <td>Makefile LUFA_OPTS</td>
229
230
231
232
233
 *    <td>DDR register for the programmer's AUX target line. The use of this line varies between the programming protocols,
 *        but is generally used for the target's /RESET line. <i>Ignored when compiled for the XPLAIN board.</i></td>
 *   </tr>
 *   <tr>
 *    <td>AUX_LINE_MASK</td>
234
 *    <td>Makefile LUFA_OPTS</td>
235
236
237
238
239
240
 *    <td>Mask for the programmer's AUX target line. The use of this line varies between the programming protocols,
 *        but is generally used for the target's /RESET line. <b>Must not be the AVR's /SS pin</b>. <i>Ignored when
 *        compiled for the XPLAIN board.</i></td>
 *   </tr>
 *   <tr>
 *    <td>VTARGET_ADC_CHANNEL</td>
241
 *    <td>Makefile LUFA_OPTS</td>
242
 *    <td>ADC channel number (on supported AVRs) to use for VTARGET level detection, if NO_VTARGET_DETECT is not defined.
243
 *        <i>Ignored when compiled for targets lacking an ADC.</i></td>
244
245
246
 *   </tr>
 *   <tr>
 *    <td>ENABLE_ISP_PROTOCOL</td>
247
 *    <td>Makefile LUFA_OPTS</td>
248
 *    <td>Define to enable SPI programming protocol support. <i>Ignored when compiled for the XPLAIN board.</i></td>
249
250
251
 *   </tr>
 *   <tr>
 *    <td>ENABLE_XPROG_PROTOCOL</td>
252
 *    <td>Makefile LUFA_OPTS</td>
253
 *    <td>Define to enable PDI and TPI programming protocol support. <i>Ignored when compiled for the XPLAIN board.</i></td>
254
255
256
 *   </tr>
 *   <tr>
 *    <td>NO_VTARGET_DETECT</td>
257
 *    <td>Makefile LUFA_OPTS</td>
258
 *    <td>Define to disable VTARGET sampling and reporting on AVR models with an ADC converter. This will cause the programmer
259
 *        to report a fixed 5V target voltage to the host regardless of the real target voltage. <i>Ignored when compiled for
260
 *        targets lacking an ADC.</i></td>
261
262
 *   </tr>
 *   <tr>
263
 *    <td>VTARGET_REF_VOLTS</td>
264
 *    <td>Makefile LUFA_OPTS</td>
265
266
 *    <td>Indicates the programmer AVR's AVCC reference voltage when measuring the target's supply voltage. Note that the supply
 *        voltage should never exceed the reference voltage on the programmer AVR without some form of protection to prevent damage
267
 *        to the ADC. <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
268
269
270
 *   </tr>
 *   <tr>
 *    <td>VTARGET_SCALE_FACTOR</td>
271
 *    <td>Makefile LUFA_OPTS</td>
272
273
274
 *    <td>Indicates the target's supply voltage scale factor when applied to the ADC. A simple resistive divider can be used on the
 *        ADC pin for measuring the target's supply voltage, so that voltages above the programmer AVR's AVCC reference voltage can be
 *        measured. This should be the reciprocal of the division performed - e.g. if the VTARGET voltage is halved, this should be set
275
276
 *        to 2. <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
 *   </tr>
277
 *   <tr>
278
 *    <td>LIBUSB_DRIVER_COMPAT</td>
279
 *    <td>Makefile LUFA_OPTS</td>
280
 *    <td>Define to switch to a non-standard endpoint scheme, breaking compatibility with AVRStudio under Windows but making
281
 *        the code compatible with software such as avrdude (all platforms) that use the libUSB driver.
282
283
284
 *   </tr>
 *  </table>
 */
285