From 0e4f298824b83e1a1e81ec8ced2e6c007a1c8961 Mon Sep 17 00:00:00 2001
From: guanjiao <sqrgj@163.com>
Date: 星期三, 29 八月 2018 21:10:40 +0800
Subject: [PATCH] 1. 修改为外部晶振 2. 修改led与蜂鸣器pin角
---
源码/核心板/Src/OnChipDevices/Usart.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
index d410b56..1ef8263 100644
--- "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
@@ -44,3 +44,13 @@
}
+uint16_t Checksum_u16(uint8_t *pdata, uint32_t len)
+{
+ uint16_t sum = 0;
+ uint32_t i;
+ for(i = 0; i < len; i++)
+ sum += pdata[i];
+ sum = ~sum;
+ return sum;
+}
+
--
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