diff options
| -rw-r--r-- | libs-device/osctune.h | 2 | ||||
| -rw-r--r-- | usbdrv/Changelog.txt | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/libs-device/osctune.h b/libs-device/osctune.h index a48f884..d1e34a0 100644 --- a/libs-device/osctune.h +++ b/libs-device/osctune.h @@ -35,6 +35,8 @@ range and allows a precision of better than +/-1%. A prescaler factor of 8 allows tuning to slightly more than +/-6% of the default frequency and is more precise than one step of OSCCAL. It is therefore not suitable to tune an 8 MHz oscillator to 12.5 MHz. + +Thanks to Henrik Haftmann for the idea to this routine! */ #define TIMER0_PRESCALING 64 /* must match the configuration for TIMER0 in main */ diff --git a/usbdrv/Changelog.txt b/usbdrv/Changelog.txt index 9d6844d..c1d2d5f 100644 --- a/usbdrv/Changelog.txt +++ b/usbdrv/Changelog.txt @@ -249,3 +249,5 @@ Scroll down to the bottom to see the most recent changes. - Added a module for 12.8 MHz RC oscillator with PLL in receiver loop. - Added hook to SOF code so that oscillator can be tuned to USB frame clock. - Added timeout to waitForJ loop. Helps preventing unexpected hangs. + - Added example code for oscillator tuning to libs-device (thanks to + Henrik Haftmann for the idea to this routine). |