X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/4f74075fad7f1e7a35d04ff534d9d6a57d2b97fc..de8313cd9b7ac44b83a819ea7d4c1a00d16da7e4:/Projects/XPLAINBridge/XPLAINBridge.txt

diff --git a/Projects/XPLAINBridge/XPLAINBridge.txt b/Projects/XPLAINBridge/XPLAINBridge.txt
index ec6eee7eb..f967d3b76 100644
--- a/Projects/XPLAINBridge/XPLAINBridge.txt
+++ b/Projects/XPLAINBridge/XPLAINBridge.txt
@@ -4,7 +4,7 @@
  *  documentation pages. It is not a project source file.
  */
  
-/** \mainpage XPLAIN UART Bridge Project
+/** \mainpage XPLAIN UART Bridge/PDI Programmer Project
  *
  *  \section SSec_Compat Project Compatibility:
  *
@@ -19,38 +19,50 @@
  *  <table>
  *   <tr>
  *    <td><b>USB Mode:</b></td>
- *    <td>Device</td>
+ *    <td>1) Device</td>
+ *    <td>2) Device</td>
  *   </tr>
  *   <tr>
  *    <td><b>USB Class:</b></td>
- *    <td>Communications Device Class (CDC)</td>
+ *    <td>1) Communications Device Class (CDC)</td>
+ *    <td>2) Vendor Specific Class</td>
  *   </tr>
  *   <tr> 
  *    <td><b>USB Subclass:</b></td>
- *    <td>Abstract Control Model (ACM)</td>
+ *    <td>1) Abstract Control Model (ACM)</td>
+ *    <td>2) N/A</td>
  *   </tr>
  *   <tr>
  *    <td><b>Relevant Standards:</b></td>
- *    <td>USBIF CDC Class Standard</td>
+ *    <td>1) USBIF CDC Class Standard</td>
+ *    <td>2) Atmel AVRISP MKII Protocol Specification</td>
  *   </tr>
  *   <tr>
  *    <td><b>Usable Speeds:</b></td>
- *    <td>Full Speed Mode</td>
+ *    <td>1) Full Speed Mode</td>
+ *    <td>2) Full Speed Mode</td>
  *   </tr>
  *  </table>
  *
  *  \section SSec_Description Project Description: 
  *
- *  This is a virtual serial port to soft-UART converter, for use on the Atmel XPLAIN boards. This project replaces the firmware
- *  preloaded onto the XPLAIN's onboard AT90USB1287 microcontroller to act as a a UART-to-USB bridge between the device and the
- *  host. When inserted, the device will enumerate as a regular COM port on the host, which can then be opened and data exchanged
- *  between the XMEGA and Host as if the XMEGA was connected directly to the host's serial port.
+ *  This project serves a dual purpose. When loaded into the USB AVR on the XPLAIN board, it will act as either a USB to Serial
+ *  converter for the XPLAIN's hardware USART (at a speed of 9600 baud), or an AVRStudio compaible PDI programmer for the XMEGA.
+ *  This project replaces the firmware preloaded onto the XPLAIN's onboard AT90USB1287 microcontroller.
+ *
+ *  When power to the board is applied, the TDI pin (pin 9) of the USB AVR's JTAG port is read. If the pin is left high, the device
+ *  will enumerate as a regular COM port on the host, which can then be opened and data exchanged between the XMEGA and Host as if
+ *  the XMEGA was connected directly to the host's serial port. If the pin is pulled low by shorting it to GND (pin 10), the device
+ *  will enumerate as an AVRISP-MKII to the host, so that the XMEGA can be reprogrammed by AVRStudio or other compatible software
+ *  such as avrdude.
  *
  *  After running this project for the first time on a new computer, you will need to supply the .INF file located in this project
  *  project's directory as the device's driver when running under Windows. This will enable Windows to use its inbuilt CDC drivers,
  *  negating the need for custom drivers for the device. Other Operating Systems should automatically use their own inbuilt CDC-ACM
  *  drivers.
  *
+ *  This project relies on files from the LUFA AVRISP-MKII project for compilation.
+ *
  *  \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.