ST STM32F410 User Manual

Universal synchronous receiver transmitter (USART) /universal asynchronous receiver transmit-
644/771 RM0401 Rev 3
9 460.8 KBps 470.588 KBps 2.125 2.12 461.538 KBps 3.25 0.16
10 921.6 KBps 888.889 KBps 1.125 3.55 923.077 KBps 1.625 0.16
1. The lower the CPU clock the lower the accuracy for a particular baud rate. The upper limit of the achievable baud rate can
be fixed with these data.
Table 108. Error calculation for programmed baud rates at f
PCLK
= 8 MHz or f
PCLK
= 12 MHz,
oversampling by 8
(1)
(continued)
Oversampling by 8 (OVER8 = 1)
Baud rate f
PCLK
= 8 MHz f
PCLK
= 12 MHz
S.No Desired Actual
Value
programmed
in the baud
rate register
% Error =
(Calculated -
Desired)
B.rate /
Desired
B.rate
Actual
Value
programmed
in the baud
rate register
% Error
Table 109. Error calculation for programmed baud rates at f
PCLK
= 16 MHz or f
PCLK
= 24 MHz,
oversampling by 16
(1)
Oversampling by 16 (OVER8 = 0)
Baud rate
f
PCLK
= 16 MHz f
PCLK
= 24 MHz
S.No Desired Actual
Value
programmed
in the baud
rate register
% Error =
(Calculated -
Desired) B.rate /
Desired B.rate
Actual
Value
programmed
in the baud
rate register
% Error
1 1.2 KBps 1.2 KBps 833.3125 0 1.2 1250 0
2 2.4 KBps 2.4 KBps 416.6875 0 2.4 625 0
3 9.6 KBps 9.598 KBps 104.1875 0.02 9.6 156.25 0
4 19.2 KBps 19.208 KBps 52.0625 0.04 19.2 78.125 0
5 38.4 KBps 38.369 KBps 26.0625 0.08 38.4 39.0625 0
6 57.6 KBps 57.554 KBps 17.375 0.08 57.554 26.0625 0.08
7 115.2 KBps 115.108 KBps 8.6875 0.08 115.385 13 0.16
8 230.4 KBps 231.884 KBps 4.3125 0.64 230.769 6.5 0.16
9 460.8 KBps 457.143 KBps 2.1875 0.79 461.538 3.25 0.16
10 921.6 KBps 941.176 KBps 1.0625 2.12 923.077 1.625 0.16
1. The lower the CPU clock the lower the accuracy for a particular baud rate. The upper limit of the achievable baud rate can
be fixed with these data.

ST STM32F410 Specifications

General

Brand	ST
Model	STM32F410
Category	Microcontrollers
Language	English