Extension Connectors; Table 5. Mcu Pin Description Versus Board Function - ST STM32F411 User Manual

UM1842
Bridge
SB19 (BOOT0)
SB20 (BOOT1)
1. Default SBx state is shown in bold.
4.13

Extension connectors

The male headers P1 and P2 can connect the STM32F411 Discovery board to a standard
prototyping/wrapping board. STM32F411VET6 GPI/Os are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
Table 5. MCU pin description versus board function (page 1 of 8)
MCU pin
Main Alternate
function functions
BOOT0
NRST
TIM2_CH1/TIM2_ETR,
PA0- TIM5_CH1,
WKUP USART2_CTS,
ADC1_0, WKUP
TIM2_CH2, TIM5_CH2,
PA1 USART2_RTS,
ADC1_1
TIM2_CH3, TIM5_CH3,
PA2 TIM9_CH1,
USART2_TX, ADC1_2
TIM2_CH4, TIM5_CH4,
PA3 TIM9_CH2,
USART2_RX, ADC1_3
Table 4. Solder bridges (continued)
(1)
State
BOOT0 signal of the STM32F411VET6 MCU is held low through a 510
ON
down resistor
BOOT0 signal of the STM32F411VET6 MCU is held high through a 10 K
OFF
up resistor
The BOOT1 signal of the STM32F411VET6 MCU is held high through a 10 K
OFF
pull-up resistor
The BOOT1 signal of the STM32F411VET6 MCU is held low through a 510
ON
pull-down resistor
- 94 -
- 14 -
23 -
24 -
25 -
26 -
Description
Board function
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DocID027213 Rev 1
Hardware layout
(1)
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Ω
pull-
Ω
pull-
Ω
Ω
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