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Fixed accuracy of the SERIAL_UBBRVAL() and SERIAL_2X_UBBRVAL() macros for higher baudrates (thanks to Renaud Cerrato).

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This commit is contained in:
Dean Camera 2010-02-12 05:01:11 +00:00
parent d49cc0f783
commit a71820b259
3 changed files with 5 additions and 5 deletions
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4
LUFA/Drivers/Peripheral/Serial.h
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@ -68,12 +68,12 @@
/** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is
* not set.
*/
#define SERIAL_UBBRVAL(baud) (((F_CPU / 16) / (baud)) - 1)
#define SERIAL_UBBRVAL(baud) ((((F_CPU / 16) + (baud / 2)) / (baud)) - 1)
/** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is
* set.
*/
#define SERIAL_2X_UBBRVAL(baud) (((F_CPU / 8) / (baud)) - 1)
#define SERIAL_2X_UBBRVAL(baud) ((((F_CPU / 8) + (baud / 2)) / (baud)) - 1)
/* Pseudo-Function Macros: */
#if defined(__DOXYGEN__)