ca85a266
 gperson
le vrai commit, c...
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
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
108
109
110
111
112
113
114
115
116
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
|
/** \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.
*/
/** \mainpage AVRISP MKII Programmer Project
*
* \section Sec_Compat Project Compatibility
*
* The following list indicates what microcontrollers are compatible with this project.
*
* \li Series 7 USB AVRs (AT90USBxxx7)
* \li Series 6 USB AVRs (AT90USBxxx6)
* \li Series 4 USB AVRs (ATMEGAxxU4)
* \li Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2) - <i>8KB versions with reduced features only</i>
*
* \section Sec_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>
* <tr>
* <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>Supported USB Speeds:</b></td>
* <td>Full Speed Mode</td>
* </tr>
* </table>
*
* \section Sec_Description Project Description
*
* Firmware for an Atmel Studio 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
* Atmel Studio or with any software capable of driving a real Atmel AVRISP-MKII programmer. In its most
* basic form, it allows for the programming of AVR TINY, MEGA and XMEGA devices at the programmer's VCC voltage from
* within Atmel Studio 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 target AVRs running at a different voltage to the programmer.
*
* This device spoofs Atmel's official AVRISP-MKII device PID so that it remains compatible with Atmel's AVRISP-MKII
* drivers. It is currently tested working under the following configurations:
*
* - <b>Windows:</b> Atmel Studio 7, with alternative driver
* - <b>Windows:</b> AVRDUDE 6.2, with alternative driver
* - <b>Linux:</b> AVRDUDE 6.1
*
* <b>Note that this clone requires a libUSB based driver under Windows,</b> due to an incompatible change in the official
* Jungo based driver. The alternative driver given here will function with both real and clone AVRISP devices in Atmel
* Studio 7 onwards under Windows - and as a bonus, also provides AVRDude access to the programmer.
*
* As of Atmel Studio version 7.0.1417 the legacy Jungo driver has been deprecated in favor of an official libUSB based
* driver, making the driver packaged here superfluous. Use the driver packaged here only if you are still using an earlier
* Atmel Studio 7 build, otherwise the official Atmel libUSB driver should be used.
*
* Note that this design currently has the following limitations:
* - No reversed/shorted target connector detection and notification
* - A separate header is required for each of the ISP, PDI and TPI programming protocols that the user wishes to use
*
* On AVR models with an ADC converter, the USB AVR's AVCC pin should be tied to 5V (e.g. VBUS) and the
* \c 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 3.3V level at all times
* which should allow the programmer to remain compatible at the protocol level with all AVR devices.
*
* 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 protocol programming support can be disabled to reduce program size.
*
* \section Sec_KnownIssues Known Issues:
*
* \par XMEGA EEPROM programming fails in some cases.
* Several users have reported that XMEGA EEPROM programming fails unless the chip is erased first. If a non-blank EEPROM
* is present, writing further EEPROM data causes corruption.
* <a href="https://github.com/abcminiuser/lufa/issues/25">LUFA issue tracker entry</a>.
*
* \section Sec_Installation Installation
* The programmer supports multiple platforms, both Windows and Linux.
*
* \subsection SSec_LinuxInstallation Linux Installation
* On Linux systems, the programmer should be usable out of the box with no special setup other than (on some systems)
* editing of the system permissions to allow the programmer to be used from a non-elevated (root) context. The programmer
* is compatible with the free open source AVRDude programming software project.
*
* \subsection SSec_WindowsInstallation Windows Installation
* On Windows systems, due to an unfortunate limitation of the USB AVR devices and the Atmel Studio platform, the programmer
* requires an alternative libUSB based driver. Uninstall the existing Jungo driver for the device (if installed) and replace
* it with the driver that ships with this project, to enable access to the programmer in Atmel Studio and AVRDUDE.
*
* \section Sec_ISP ISP Connections
* Connections to the device for SPI programming (when enabled):
*
* <table>
* <tr>
* <th><b>Programmer Pin:</b></th>
* <th><b>Target Device Pin:</b></th>
* <th><b>ISP 6 Pin Layout:</b></th>
* </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>
*
* In addition, the AVR's OCR1A pin will generate a 4MHz 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).
*
* <b><sup>1</sup></b> <i>Optional, see \ref Sec_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 Sec_Options section</i>
*
* \section Sec_PDI PDI Connections
* Connections to the device for PDI programming (when enabled):
*
* <table>
* <tr>
* <th><b>Programmer Pin:</b></th>
* <th><b>Target Device Pin:</b></th>
* <th><b>PDI 6 Pin Layout:</b></th>
* </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>
* <td>XCK</td>
* <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 Sec_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
* Connections to the device for TPI programming (when enabled):
*
* <table>
* <tr>
* <th><b>Programmer Pin:</b></th>
* <th><b>Target Device Pin:</b></th>
* <th><b>TPI 6 Pin Layout:</b></th>
* </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>XCK <b><sup>2</sup></b></td>
* <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 Sec_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 Sec_Options section</i>
*
* \section Sec_Options Project Options
*
* The following defines can be found in this project, which can control the project behaviour when defined, or changed in value.
*
* <table>
* <tr>
* <th><b>Define Name:</b></th>
* <th><b>Location:</b></th>
* <th><b>Description:</b></th>
* </tr>
* <tr>
* <td>AUX_LINE_PORT</td>
* <td>AppConfig.h</td>
* <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.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>AUX_LINE_PIN</td>
* <td>AppConfig.h</td>
* <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.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>AUX_LINE_DDR</td>
* <td>AppConfig.h</td>
* <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.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>AUX_LINE_MASK</td>
* <td>AppConfig.h</td>
* <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>.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>VTARGET_ADC_CHANNEL</td>
* <td>AppConfig.h</td>
* <td>ADC channel number (on supported AVRs) to use for VTARGET level detection, if NO_VTARGET_DETECT is not defined.
* \n \n <i>Ignored when compiled for targets lacking an ADC.</i></td>
* </tr>
* <tr>
* <td>ENABLE_ISP_PROTOCOL</td>
* <td>AppConfig.h</td>
* <td>Define to enable SPI programming protocol support.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>ENABLE_XPROG_PROTOCOL</td>
* <td>AppConfig.h</td>
* <td>Define to enable PDI and TPI programming protocol support.
* \n \n <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
* <td>NO_VTARGET_DETECT</td>
* <td>AppConfig.h</td>
* <td>Define to disable VTARGET sampling and reporting on AVR models with an ADC converter. This will cause the programmer
* to report a fixed 3.3V target voltage to the host regardless of the real target voltage.
* \n \n <i>Ignored when compiled for targets lacking an ADC.</i></td>
* </tr>
* <tr>
* <td>VTARGET_REF_VOLTS</td>
* <td>AppConfig.h</td>
* <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
* to the ADC.
* \n \n <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
* </tr>
* <tr>
* <td>VTARGET_USE_INTERNAL_REF</td>
* <td>AppConfig.h</td>
* <td>Selects the internal 2.56V ADC reference voltage, instead of using the AVR's VREF pin. When enabled, this option will
* override the VTARGET_REF_VOLTS configuration option.
* \n \n <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
* </tr>
* <tr>
* <td>VTARGET_SCALE_FACTOR</td>
* <td>AppConfig.h</td>
* <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
* to 2.
* \n \n <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
* </tr>
* <tr>
* <td>XCK_RESCUE_CLOCK_ENABLE</td>
* <td>AppConfig.h</td>
* <td>Define to move the ISP rescue clock to the AVR's XCK pin instead of the OCR1A output pin. This is useful for existing programming
* hardware that does not expose the OCR1A pin of the AVR, but <i>may</i> cause some issues with PDI programming mode.</td>
* </tr>
* <tr>
* <td>INVERTED_ISP_MISO</td>
* <td>AppConfig.h</td>
* <td>Define to invert the received data on the ISP MISO line. This is sometimes needed depending on the level translation hardware used,
* if the translator hardware inverts the received logic level.</td>
* </tr>
* <tr>
* <td>FIRMWARE_VERSION_MINOR</td>
* <td>AppConfig.h</td>
* <td>Define to set the minor firmware revision nunber reported to the host on request. By default this will use a firmware version compatible
* with the latest Atmel IDE version, however if desired the reported minor value can be adjusted here.</td>
* </tr>
* </table>
*/
|