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chenxin
2025-06-27 10:03:05 +08:00
commit 89a0366629
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src/vsmd_parser.cpp Normal file
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#include "vsmd_parser.h"
#include "ble.h"
extern HardwareSerial debugSerial;
// BCC 校验函数
uint8_t VSMDParser::bcc_checksum(uint8_t* data, int size) {
uint8_t sum = 0;
for (int index = 0; index < size; index++) {
sum ^= data[index];
}
return sum;
}
// 构造函数
VSMDParser::VSMDParser() {
// 可选初始化
}
// 数据转换函数
void VSMDParser::convert(uint8_t* data, value_info& info) {
info.udata = data[0];
info.udata <<= 7;
info.udata |= data[1];
info.udata <<= 7;
info.udata |= data[2];
info.udata <<= 7;
info.udata |= data[3];
info.udata <<= 7;
info.udata |= data[4];
}
// 解析函数
// void VSMDParser::parse(uint8_t* data, int size) {
// // if (size < 10) {
// // debugSerial.println("data too short");
// // return;
// // }
// if (data[0] == 0xFF && data[size - 1] == 0xFE) {
// uint8_t checksum = bcc_checksum(&data[1], size - 3);
// if (checksum == data[size - 2]) {
// switch (data[2]) {
// case 1: { // dev
// debugSerial.print("dev:");
// int start = 0;
// while (start < size && data[start] != 'V') start++;
// if (start < size) {
// int end = start;
// while (end < size && data[end] >= 32 && data[end] < 127) end++;
// for (int i = start; i < end; i++) {
// debugSerial.print((char)data[i]);
// }
// debugSerial.println();
// } else {
// debugSerial.println("dev err");
// }
// break;
// }
// case 2: { // sts
// float spd = 0;
// int pos = 0;
// uint32_t sts = 0;
// value_info info;
// convert(&data[3], info);
// spd = info.fdata;
// convert(&data[8], info);
// pos = info.idata;
// convert(&data[13], info);
// sts = info.udata;
// debugSerial.print("Speed: ");
// debugSerial.print(spd);
// debugSerial.print(", Position: ");
// debugSerial.print(pos);
// debugSerial.print(", Status: ");
// debugSerial.println(sts);
// break;
// }
// case 3: { // cfg
// debugSerial.print("cfg:");
// int payloadStart = 3;
// int payloadEnd = size - 3;
// if (payloadStart < payloadEnd) {
// for (int i = payloadStart; i < payloadEnd; i++) {
// debugSerial.print((char)data[i]);
// }
// debugSerial.println();
// } else {
// debugSerial.println(" 数据长度不足");
// }
// break;
// }
// case 4: { // demo
// debugSerial.print("demo:");
// int payloadStart = 3;
// int payloadEnd = size - 3;
// if (payloadStart < payloadEnd) {
// for (int i = payloadStart; i < payloadEnd; i++) {
// debugSerial.print((char)data[i]);
// }
// debugSerial.println();
// } else {
// debugSerial.println(" 数据长度不足");
// }
// break;
// }
// default:
// debugSerial.print("未知命令: ");
// debugSerial.println(data[2]);
// break;
// }
// } else {
// return;
// debugSerial.println("BCC ERROR");
// debugSerial.print("CHECK BCC: ");
// debugSerial.println(checksum);
// debugSerial.print("RES BCC: ");
// debugSerial.println(data[size - 2], HEX);
// }
// } else {
// debugSerial.println("Head or Tail ERROR");
// debugSerial.print("Receive Data: ");
// for (int i = 0; i < size; i++) {
// debugSerial.print(data[i], HEX);
// debugSerial.print(" ");
// }
// debugSerial.println();
// }
// }
/**************************** ble read ************************************ */
void VSMDParser::parse(uint8_t* data, int size) {
if (data[0] == 0xFF && data[size - 1] == 0xFE) {
uint8_t checksum = bcc_checksum(&data[1], size - 3);
if (checksum == data[size - 2]) {
switch (data[2]) {
case 1: { // dev
String response = "dev:";
int start = 0;
while (start < size && data[start] != 'V') start++;
if (start < size) {
int end = start;
while (end < size && data[end] >= 32 && data[end] < 127) end++;
for (int i = start; i < end; i++) {
response += (char)data[i];
}
response += "\n";
} else {
response += "dev err\n";
}
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
break;
}
case 2: { // sts
float spd = 0;
int pos = 0;
uint32_t sts = 0;
value_info info;
convert(&data[3], info);
spd = info.fdata;
convert(&data[8], info);
pos = info.idata;
convert(&data[13], info);
sts = info.udata;
String response = "Speed: " + String(spd) + ", Position: " + String(pos) + ", Status: " + String(sts) + "\n";
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
break;
}
case 3: { // cfg
String response = "cfg:";
int payloadStart = 3;
int payloadEnd = size - 3;
if (payloadStart < payloadEnd) {
for (int i = payloadStart; i < payloadEnd; i++) {
response += (char)data[i];
}
response += "\n";
} else {
response += " 数据长度不足\n";
}
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
break;
}
case 4: { // demo
String response = "demo:";
int payloadStart = 3;
int payloadEnd = size - 3;
if (payloadStart < payloadEnd) {
for (int i = payloadStart; i < payloadEnd; i++) {
response += (char)data[i];
}
response += "\n";
} else {
response += " 数据长度不足\n";
}
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
break;
}
default:
String response = "未知命令: ";
response += data[2];
response += "\n";
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
break;
}
} else {
// BCC 校验失败
String response = "BCC ERROR\nCHECK BCC: ";
response += checksum;
response += "\nRES BCC: ";
response += data[size - 2], HEX;
response += "\n";
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
}
} else {
String response = "Head or Tail ERROR\nReceive Data: ";
for (int i = 0; i < size; i++) {
response += data[i], HEX;
response += " ";
}
response += "\n";
// 发送通过蓝牙
if (pCharacteristic) {
pCharacteristic->setValue(response.c_str());
pCharacteristic->notify();
}
}
}