In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Beau Schwabe wrote:

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">Did you adjust for the difference in Baud speed settings?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Symbol; mso-ascii-font-family: Verdana">·<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><SPAN style="mso-spacerun: yes">  BS2, BS2e, and BS2pe = INT(1,000,000 ÷ baud rate) - 20 <o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Symbol; mso-ascii-font-family: Verdana">·<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><SPAN style="mso-spacerun: yes">  BS2sx and BS2p = INT(2,500,000 ÷ baud rate) - 20 <o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Symbol; mso-ascii-font-family: Verdana">·<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><SPAN style="mso-spacerun: yes">  BS2px = INT(4,000,000 ÷ baud rate) - 20 <o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"> <o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">If you are using 188 on the BS2, then you should be using 500 on the BS2sx when referring to baud speed in the SERIN or SEROUT commands.<o:p></o:p>

<SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">Likewise if you are using 16572 on the BS2, then for the BS2sx you should be using 16884 when referring to baud speed in the SERIN or SEROUT commands.<o:p></o:p>

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