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-rw-r--r--bsp/stm32/stm32l475-atk-pandora/README.md2
-rw-r--r--bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md2
2 files changed, 2 insertions, 2 deletions
diff --git a/bsp/stm32/stm32l475-atk-pandora/README.md b/bsp/stm32/stm32l475-atk-pandora/README.md
index 2a90081c97..a4d46c0e3d 100644
--- a/bsp/stm32/stm32l475-atk-pandora/README.md
+++ b/bsp/stm32/stm32l475-atk-pandora/README.md
@@ -134,7 +134,7 @@ msh >
## 注意事项
-暂无
+关于ST-Link无法升级的问题请参考:https://github.com/armink/HackSTLinkUpgrade
## 联系人信息
diff --git a/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md b/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
index 3c71e48dd1..03dbb1f7f6 100644
--- a/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
@@ -154,5 +154,5 @@ Arduino的 analogWrite 函数虽为模拟写,但是实际输出的是PWM数字
在潘多拉板上,使用PA4来当做真模拟输出功能引脚,使用方法为:
```c
-analogWrite(DAC0, 1024); // STM32的DAC分辨率为12位,因此第二个参数范围可以为0-4095
+analogWrite(DAC0, 128);
```