From 5b89937212db0c507145187313eb5b326220f47b Mon Sep 17 00:00:00 2001
From: liurunyu <lry9898@163.com>
Date: 星期二, 21 一月 2025 10:18:43 +0800
Subject: [PATCH] 修改RTU升级文件CRC16计算的bug
---
pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/CRC16.java | 19 ++++++++++---------
1 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/CRC16.java b/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/CRC16.java
index d641b85..157257f 100644
--- a/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/CRC16.java
+++ b/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/CRC16.java
@@ -94,7 +94,6 @@
* @param endIndex 鎴涓嬫爣
* @return CRC
*/
- @SuppressWarnings("unused")
public int CRC16_table(byte[] bs, int startIndex, int endIndex) {
int x ;
int crc = 0xffff;
@@ -106,18 +105,20 @@
}
return crc ;
}
+
/**
- * 16浣嶇殑CRC鍊� 锛屾煡琛ㄦ硶
+ * 16浣嶇殑CRC鍊兼槸鏃犵鍙蜂袱瀛楄妭鏁存暟锛�
+ * @param len 鏁扮粍闀垮害
* @param bs 瀛楄妭鏁扮粍
+ * @param crc 鍘熷crc鍊�
* @return CRC
*/
- public short CRC16_table(byte[] bs) {
- short x ;
- short crc = (short)0xffff;
- if(bs != null && bs.length > 0){
- for(byte b : bs){
- x = (short)(crc ^ b) ;
- crc = (short)((crc >> 8) ^ crc16_rev_table[x & 0x00FF]) ;
+ public int CRC16_table(int len, byte[] bs, int crc) {
+ int x ;
+ if(bs != null){
+ for (int i = 0 ; i < len; i++){
+ x = (crc ^ bs[i]) ;
+ crc = ((crc >> 8) ^ crc16_rev_table[x & 0x00FF]) ;
}
}
return crc ;
--
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