X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/0c15a451280d2ff2b2fd962b4c3f9fc4812d3cbf..fa2cc3e1c3abab7c971506bd86ca4e28ecc7d288:/Bootloaders/CDC/BootloaderCDC.txt
diff --git a/Bootloaders/CDC/BootloaderCDC.txt b/Bootloaders/CDC/BootloaderCDC.txt
index 55e5e55a4..f8c349cde 100644
--- a/Bootloaders/CDC/BootloaderCDC.txt
+++ b/Bootloaders/CDC/BootloaderCDC.txt
@@ -59,9 +59,17 @@
*
* \section Sec_Running Running the Bootloader
*
- * This bootloader is designed to be started via the HWB mechanism of the USB AVRs; ground the HWB pin (see device
- * datasheet) then momentarily ground /RESET to start the bootloader. This assumes the HWBE fuse is set and the BOOTRST
- * fuse is cleared.
+ * On the USB AVR8 devices, setting the \c HWBE device fuse will cause the bootloader to run if the \c HWB pin of
+ * the AVR is grounded when the device is reset.
+ *
+ * The are two behaviours of this bootloader, depending on the device's fuses:
+ *
+ * If the device's BOOTRST fuse is set, the bootloader will run any time the system is reset from
+ * the external reset pin, unless no valid user application has been loaded. To initiate the bootloader, the
+ * device's external reset pin should be grounded momentarily.
+ *
+ * If the device's BOOTRST fuse is not set, the bootloader will run only if initiated via a software
+ * jump, or if the \c HWB pin was low during the last device reset (if the \c HWBE fuse is set).
*
* For board specific exceptions to the above, see below.
*
@@ -196,12 +204,6 @@
* access.
* See here for resolution steps.
*
- * \par After loading an application, it is not run automatically on startup.
- * Some USB AVR boards ship with the BOOTRST fuse set, causing the bootloader
- * to run automatically when the device is reset. In most cases, the BOOTRST
- * fuse should be disabled and the HWBE fuse used instead to run the bootloader
- * when needed.
- *
* \section Sec_Options Project Options
*
* The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.