📖 更新文档

Signed-off-by: DAVE <ro7enkranz@qq.com>

README.md

@@ -1,4 +1,4 @@
-# PEAK PCAN firmware for STM32F042 based boards <a title="Hits" target="_blank" href="https://github.com/SummerFalls/pcan_cantact"><img src="https://hits.b3log.org/SummerFalls/pcan_cantact.svg"></a>
+# PEAK PCAN firmware for STM32F042C6T6(STM32F072C8T6) based boards <a title="Hits" target="_blank" href="https://github.com/SummerFalls/pcan_cantact"><img src="https://hits.b3log.org/SummerFalls/pcan_cantact.svg"></a>
 
 [![Build PCAN firmware](https://github.com/SummerFalls/pcan_cantact/actions/workflows/firmware_build.yml/badge.svg)](https://github.com/SummerFalls/pcan_cantact/actions/workflows/firmware_build.yml)
 
@@ -8,7 +8,31 @@
 - [CANable](https://canable.io/) - opensource USB-CAN adapter based on CANtact project `make canable`
 - [Entreé](https://github.com/tuna-f1sh/entree) - opensource USB-C CAN adapter based on CANable project `make entree`
 - [Ollie](https://github.com/slimelec/ollie-hw) - opensource USB-CAN adapter with isolated USB `make ollie`
-- Any other STM32F042 based boards with external or internal OSC.
+- Any other STM32F042C6T6(STM32F072C8T6) based boards with external or internal OSC.
+
+<div style="margin: 0 auto; width: 100%;">
+<table>
+<tr>
+<td style = "width: 80%;">
+
+![PinConfig](PinConfig.jpg)
+
+</td>
+<td style = "width: 20%;">
+
+| PINs | FUNCTIONs  |
+|-----:|------------|
+| PA0  | CAN_RX_LED |
+| PA1  | CAN_TX_LED |
+| PB8  | CAN_RX     |
+| PB9  | CAN_TX     |
+| PA11 | USB_DM     |
+| PA12 | USB_DP     |
+
+</td>
+</tr>
+</table>
+</div>
 
 ## :wrench: 工具链 / Toolchain