X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/5a4def747897c1c6ffbe465506d846c7c686d3e9..b20d25854d7134ed5c73bfcd852a6e3e4febdc0b:/Projects/AVRISP-MKII/AVRISP-MKII.txt

diff --git a/Projects/AVRISP-MKII/AVRISP-MKII.txt b/Projects/AVRISP-MKII/AVRISP-MKII.txt
index e36ffe231..7489cf6a0 100644
--- a/Projects/AVRISP-MKII/AVRISP-MKII.txt
+++ b/Projects/AVRISP-MKII/AVRISP-MKII.txt
@@ -105,9 +105,9 @@
  *   </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.
+ *  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 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>
@@ -280,6 +280,12 @@
  *    <td>Define to switch to a non-standard endpoint scheme, breaking compatibility with AVRStudio under Windows but making
  *        the code compatible with software such as avrdude (all platforms) that use the libUSB driver.
  *   </tr>
+ *   <tr>
+ *    <td>XCK_RESCUE_CLOCK_ENABLE</td>
+ *    <td>Makefile LUFA_OPTS</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 *may* cause some issues with PDI programming mode.
+ *   </tr>
  *  </table>
  */