USART and IrDA

huebler · ‎2007-07-16

Posted on July 16, 2007 at 09:47

USART and IrDA

huebler · ‎2011-05-17

Posted on May 17, 2011 at 12:15

Hello,

Case i use an external oscillator of 8Mhz, PLL multiplication by 4, no AHB prescaling, no APB-prescaling and i want to use 115kBit the baudrateprescaler has to be programmed with 17.36.

What influence has the USART's baudrate-prescaler (especially the fractional part) onto the nominal pulselength (1.628Âµs LowPower-Mode ), if i use such non-baudrate-quarzes ?

Does the pulselength fullfill the IrDA-Spec ?

Are there shorter and longer pulses possible ?

Kind regards

Joerg