ST STM32F410 User Manual

Universal synchronous receiver transmitter (USART) /universal asynchronous receiver transmit-
648/771 RM0401 Rev 3
7 460.8 KBps 461.538 KBps 8.1250 0.16% 461.538 KBps 16.2500 0.16%
8 896 KBps 909.091 KBps 4.1250 1.46% 895.522 KBps 8.3750 0.05%
9 921.6 KBps 909.091 KBps 4.1250 1.36% 923.077 KBps 8.1250 0.16%
10 1.792 MBps 1.7647 MBps 2.1250 1.52% 1.8182 MBps 4.1250 1.46%
11 1.8432 MBps 1.8750 MBps 2.0000 1.73% 1.8182 MBps 4.1250 1.36%
12 3.584 MBps 3.7500 MBps 1.0000 4.63% 3.5294 MBps 2.1250 1.52%
13 3.6864 MBps 3.7500 MBps 1.0000 1.73% 3.7500 MBps 2.0000 1.73%
14 7.168 MBps NA NA NA 7.5000 MBps 1.0000 4.63%
15 7.3728 MBps NA NA NA 7.5000 MBps 1.0000 1.73%
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.
2. Only USART1 and USART6 are clocked with PCLK2. Other USARTs are clocked with PCLK1. Refer to the device
datasheets for the maximum values for PCLK1 and PCLK2.
Table 114. Error calculation for programmed baud rates at f
PCLK
= 30 MHz or f
PCLK
= 60 MHz,
oversampling by 8
(1) (2)
(continued)
Oversampling by 8 (OVER8=1)
Baud rate f
PCLK
= 30 MHz f
PCLK
=60 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 115. Error calculation for programmed baud rates at f
PCLK
= 42 MHz or f
PCLK
= 84 Hz,
oversampling by 16
(1)(2)
Oversampling by 16 (OVER8=0)
Baud rate f
PCLK
= 42 MHz f
PCLK
= 84 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 2187.5 0 1.2 KBps 4375 0
2 2.4 KBps 2.4 KBps 1093.75 0 2.4 KBps 2187.5 0
3 9.6 KBps 9.6 KBps 273.4375 0 9.6 KBps 546.875 0
4 19.2 KBps 19.195 KBps 136.75 0.02 19.2 KBps 273.4375 0
5 38.4 KBps 38.391 KBps 68.375 0.02 38.391 KBps 136.75 0.02
6 57.6 KBps 57.613 KBps 45.5625 0.02 57.613 KBps 91.125 0.02
7 115.2 KBps 115.068 KBps 22.8125 0.11 115.226 KBps 45.5625 0.02
8 230.4 KBps 230.769 KBps 11.375 0.16 230.137 KBps 22.8125 0.11
9 460.8 KBps 461.538 KBps 5.6875 0.16 461.538 KBps 11.375 0.16

ST STM32F410 Specifications

General

Brand	ST
Model	STM32F410
Category	Microcontrollers
Language	English