AVRISP.txt 9.19 KB
 Dean Camera committed May 08, 2010 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 /** \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 SSec_Compat Project Compatibility: * * The following list indicates what microcontrollers are compatible with this project. * * - Series 7 USB AVRs * - Series 6 USB AVRs * - Series 4 USB AVRs * - Series 2 USB AVRs (8KB versions with reduced features only) * * \section SSec_Info USB Information: * * The following table gives a rundown of the USB utilization of this project. * * *
USB Mode:Device
USB Class:Vendor Specific Class
USB Subclass:N/A
Relevant Standards:Atmel AVRISP MKII Protocol Specification
Usable Speeds:Full Speed Mode
* * * * * * * * * * * * * * * * * * * * * * \section SSec_Description Project Description: * * 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: * - Minimum ISP target clock speed of 500KHz due to hardware SPI module prescaler limitations * - No reversed/shorted target connector detection and notification * - A seperate header is required for each of the ISP, PDI and TPI programming protocols that the user wishes to use  Dean Camera committed May 17, 2010 60  * - XMEGA EEPROM erase section command does not work (but EEPROM read/write and chip erase does)  Dean Camera committed May 08, 2010 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  * * 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): * * *
Programmer Pin:Target Device Pin:ISP 6 Pin Layout:
MISOPDO1
SCLKSCLK3
MOSIPDI4
PORTx.y 2/RESET5
GNDGND6
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * In addition, the AVR's XCK pin will generate a .5MHz clock when SPI programming is used, to act as an external * device clock if the fuses have been mis-set. To use the recovery clock, connect XCK to the target AVR's XTAL1 * pin, and set the ISP programming speed to 125KHz or below. * * 1 Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only \n * 2 See AUX line related tokens in the \ref SSec_Options section * * \section Sec_PDI PDI Connections * Connections to the device for PDI programming1 (when enabled): * * *
Programmer Pin:Target Device Pin:PDI 6 Pin Layout:
Tx/Rx 2DATA1
N/AN/A3
N/AN/A4
XCLKCLOCK5
GNDGND6
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 1 Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only \n * 2 The AVR's Tx and Rx become the DATA line when connected together via a pair of 220 ohm resistors \n * * \section Sec_TPI TPI Connections * Connections to the device for TPI programming1 (when enabled): * * *
Programmer Pin:Target Device Pin:TPI 6 Pin Layout:
Tx/Rx 2DATA1
XCLK 2CLOCK3
N/AN/A4
PORTx.y 3/RESET5
GNDGND6
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 1 Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only \n * 2 The AVR's Tx and Rx become the DATA line when connected together via a pair of 220 ohm resistors \n * 3 See AUX line related tokens in the \ref SSec_Options section * * \section SSec_Options Project Options * * The following defines can be found in this project, which can control the project behaviour when defined, or changed in value. * * *
Define Name:Location:Description:
AUX_LINE_PORTMakefile CDEFSPORT 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. Ignored when compiled for the XPLAIN board.
AUX_LINE_PINMakefile CDEFSPIN 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. Ignored when compiled for the XPLAIN board.
AUX_LINE_DDRMakefile CDEFSDDR 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. Ignored when compiled for the XPLAIN board.
AUX_LINE_MASKMakefile CDEFSMask 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. Must not be the AVR's /SS pin. Ignored when * compiled for the XPLAIN board.
VTARGET_ADC_CHANNELMakefile CDEFSADC channel number (on supported AVRs) to use for VTARGET level detection, if NO_VTARGET_DETECT is not defined.
ENABLE_ISP_PROTOCOLMakefile CDEFSDefine to enable SPI programming protocol support. Ignored when compiled for the XPLAIN board.
ENABLE_XPROG_PROTOCOLMakefile CDEFSDefine to enable PDI and TPI programming protocol support. Ignored when compiled for the XPLAIN board.
NO_VTARGET_DETECTMakefile CDEFSDefine to disable VTARGET sampling and reporting on AVR models with an ADC converter. This will cause the programmer * to report a fixed 5V target voltage to the host regardless of the real target voltage.
LIBUSB_DRIVER_COMPATMakefile CDEFSDefine to switch to a non-standard endpoint scheme, breaking compatibility with AVRStudio under Windows but making  Dean Camera committed May 13, 2010 266  * the code compatible with software such as avrdude (all platforms) that use the libUSB driver.  Dean Camera committed May 08, 2010 267 268 269  *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *  Dean Camera committed May 13, 2010 263  *  Dean Camera committed May 08, 2010 264 265  * * * */