ST STM32L4 5 Series User Manual

Low-power universal asynchronous receiver transmitter (LPUART) RM0351
1382/1830 DocID024597 Rev 5
Table 241. Error calculation for programmed baud rates at f
ck
= 32,768 KHz
Baud rate f
CK
= 32,768 KHz
S.No Desired Actual
Value programmed in the baud
rate register
% Error = (Calculated - Desired)
B.rate / Desired B.rate
1 300 Bps 300 Bps 0x6D3A 0
2 600 Bps 600 Bps 0x369D 0
3 1200 Bps 1200.087 Bps 0x1B4E 0.007
4 2400 Bps 2400.17 Bps 0xDA7 0.007
5 4800 Bps 4801.72 Bps 0x6D3 0.035
6 9600 Bps 9608.94 Bps 0x369 0.093
Table 242. Error calculation for programmed baud rates at f
ck
= 80 MHz
Desired Actual
Value programmed in the
baud rate register
% Error = (Calculated -
Desired)
B.rate / Desired B.rate
38400 38400,02 82355 0,00006
57600 57600,09 56CE3 0,0001
115200 115200,50 2B671 0,0004
230400 230402,30 15B38 0,001
460800 460804,61 AD9C 0,001
921600 921609,22 56CE 0,001
4000000 4000000,00 1400 0
10000000 10000000,00 800 0
20000000 20000000,00 400 0
26000000 26022871,66 313 0,09

ST STM32L4 5 Series Specifications

General

Brand	ST
Model	STM32L4 5 Series
Category	Microcontrollers
Language	English