X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/857381185d60eed2ccee7dc7b88d49d90546f8a2..19ecd04f37f68c0674f1194aa8d8a4fc94d6168b:/Projects/AVRISP-MKII/AVRISP.txt

diff --git a/Projects/AVRISP-MKII/AVRISP.txt b/Projects/AVRISP-MKII/AVRISP.txt
index b05bb4da4..fddae6d2b 100644
--- a/Projects/AVRISP-MKII/AVRISP.txt
+++ b/Projects/AVRISP-MKII/AVRISP.txt
@@ -110,6 +110,10 @@
  *   </tr>
  *  </table>
  *
+ *  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.
+ *
  *  <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>
  *
@@ -156,7 +160,7 @@
  *
  *  <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>When XPROG_VIA_HARDWARE_USART is set, the AVR's Tx and Rx become the DATA line when connected together
- *                         via a pair of 300 ohm resistors, and the AVR's XCK pin becomes CLOCK.</i> \n
+ *                         via a pair of 220 ohm resistors, and the AVR's XCK pin becomes CLOCK.</i> \n
  *  <b><sup>3</sup></b> <i>See AUX line related tokens in the \ref SSec_Options section</i>
  *
  *  \section Sec_TPI TPI Connections
@@ -202,7 +206,7 @@
  *
  *  <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>When XPROG_VIA_HARDWARE_USART is set, the AVR's Tx and Rx become the DATA line when connected together
- *                         via a pair of 300 ohm resistors, and the AVR's XCK pin becomes CLOCK.</i> \n
+ *                         via a pair of 220 ohm resistors, and the AVR's XCK pin becomes CLOCK.</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
@@ -243,7 +247,7 @@
  *   <tr>
  *    <td>VTARGET_ADC_CHANNEL</td>
  *    <td>Makefile CDEFS</td>
- *    <td>ADC channel number (on supported AVRs) to use for VTARGET level detection.</td> 
+ *    <td>ADC channel number (on supported AVRs) to use for VTARGET level detection, if NO_VTARGET_DETECT is not defined.</td> 
  *   </tr>
  *   <tr>
  *    <td>ENABLE_ISP_PROTOCOL</td>
@@ -263,5 +267,18 @@
  *        seperate ISP, PDI, and TPI programming headers) but increases programming speed dramatically.
  *        <i>Ignored when compiled for the XPLAIN board.</i></td>  
  *   </tr>
+ *   <tr>
+ *    <td>NO_VTARGET_DETECT</td>
+ *    <td>Makefile CDEFS</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 5V target voltage to the host regardless of the real target voltage.</td>  
+ *   </tr>
+ *   <tr>
+ *    <td>LIBUSB_FILTERDRV_COMPAT</td>
+ *    <td>Makefile CDEFS</td>
+ *    <td>Define to switch to a non-standard endpoint scheme, breaking compatibility with AVRStudio under Windows but making
+ *        the code compatible with Windows builds of avrdude using the libUSB driver. Linux platforms are not affected by this
+ *        option.
+ *   </tr>
  *  </table>
  */