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| author | Christian Starkjohann <cs+github@obdev.at> | 2008-05-13 15:53:37 +0000 |
|---|---|---|
| committer | Christian Starkjohann <cs+github@obdev.at> | 2008-05-13 15:53:37 +0000 |
| commit | d7549d22b6a93d0aef38d7ed893bf5130e0c9159 (patch) | |
| tree | 7accf7bfb0b96caa9c6294ca6ad9e60179062d7f /usbdrv/Readme.txt | |
| parent | 04bffe59658691d73e85077cf0fad9f484e0190d (diff) | |
| download | v-usb-d7549d22b6a93d0aef38d7ed893bf5130e0c9159.tar.gz v-usb-d7549d22b6a93d0aef38d7ed893bf5130e0c9159.tar.bz2 v-usb-d7549d22b6a93d0aef38d7ed893bf5130e0c9159.zip | |
- documented 20 MHz module
Diffstat (limited to 'usbdrv/Readme.txt')
| -rw-r--r-- | usbdrv/Readme.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/usbdrv/Readme.txt b/usbdrv/Readme.txt index 0dea48b..cb1a70e 100644 --- a/usbdrv/Readme.txt +++ b/usbdrv/Readme.txt @@ -80,6 +80,11 @@ ATTiny26. See the EasyLogger example at http://www.obdev.at/avrusb/easylogger.html for code which calibrates the RC oscillator based on the USB frame clock. +20 MHz Clock +This module is for people who won't do it with less than the maximum. Since +20 MHz is not divisible by the USB low speed bit clock of 1.5 MHz, the code +uses similar tricks as the 16 MHz module to insert leap cycles. + USB IDENTIFIERS =============== |