User manual

EXTERNAL CONNECTOR DESCRIPTION:
EXTENSION 1
Pin # Signal Name Pin # Signal Name
1 PA11/USBDM/CANRX 2 PA8
3 PA12/USBDP/CANTX 4 PA9/UART1.TX
5 +3.3V out 6 GND
7 PA10/UART1.RX 8 PC10
9 PC11/USBpull 10 PC12/LED
11 PD2 12 PB5/I2C1.SMBA
13 PB6/I2C.SCL 14 PA6/SPI1.MISO
15 PB7/I2C.SDA 16 PB8
17 PB9 18 PA5/SPI1.SCK
19 PC0 20 PC1
21 PB0 22 PA7/SPI1.MOSI
23 VBAT 24 PC13
25 RST 26 PB1
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