UM1570
6.12
Extension connectors
The male headers P1 and P2 can connect the STM32F3DISCOVERY to a standard
prototyping/wrapping board. STM32F303VCT6 GPIOs are available on these connectors.
An oscilloscope, logical analyzer, or voltmeter can also probe P1 and P2.
Table 7. STM32F303VCT6 MCU pin description versus board function
MCU pin
Main
Alternate function
function
BOOT0
NRST
TIM2_CH1_ETR,
G1_IO1,
USART2_CTS,
PA0
COMP1_OUT,
TIM8_BKIN,
TM8_ETR
TIM2_CH2, G1_IO2,
PA1
USART2_RTS,
TIM15_CH1N
TIM2_CH3, G1_IO3,
USART2_TX,
PA2
COMP2_OUT,
TIM15_CH1,
AOP1_OUT
TIM2_CH4, G1_IO4,
PA3
USART2_RX,
TIM15_CH2
TIM3_CH2, G2_IO1,
SPI1_NSS,
PA4
SPI3_NSS/I2S3_WS,
USART2_CK
-
94
-
-
14
-
23
-
24
-
25
-
26
-
29
-
Board function
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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UM1570 Rev 7
Hardware layout and configuration
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(1)
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19
5
4
-
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12
-
-
9
-
-
14
-
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11
-
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16
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23/41
40
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