----- Original Message ----- From: "Mauricio Jancic" To: "'Microcontroller discussion list - Public.'" Sent: Friday, May 13, 2005 4:37 PM Subject: RE: [PIC] Error % charts of PIC USART ? > That percentage is the actual error if you compare the actual speed of the > PICmicro using the mentioned (in the datasheet) crystal and the speed > standard. > > For example, the standard speed is 19200 baud, but with the 0.16% error you > will have (in the PIC) 19230 baud. > > See? I see now, but I still do not quite understand what I can choose if I want to connect to the PC com port. If I am not mistaken every char is 9 to 10 bits including the stop bit(s), so if the error is -45.75 percent in the table, I would need to multiply this by 9 for the whole char. This will give me an error of 450%. Am I doing something wrong here? > > Regards, > > Mauricio Jancic > Janso Desarrollos - Microchip Consultants Program Member > info@janso.com.ar > www.janso.com.ar > (54) 11 - 4542 - 3519 > > > > -----Original Message----- > > From: piclist-bounces@mit.edu > > [mailto:piclist-bounces@mit.edu] On Behalf Of kenasw@btinternet.com > > Sent: Friday, May 13, 2005 12:20 PM > > To: Microcontroller discussion list - Public. > > Subject: [PIC] Error % charts of PIC USART ? > > > > In the datasheet of 18F2455 we have > > Table 20-3 Baud Rates For Aynchronous Modes (USART module) (I > > guess other pics would have the same thing as well) The > > errors seem to range from 0.16% up to -45.75%. Are all these > > values valid, or should I be aiming at a certain percentage, > > I am confused? > > -- > > http://www.piclist.com PIC/SX FAQ & list archive View/change > > your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.308 / Virus Database: 266.11.9 - Release Date: 12/05/2005 > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist