yetangitu/Battery-Emulator
1
0
Fork 0
mirror of https://github.com/dalathegreat/Battery-Emulator.git synced 2025-10-05 10:49:42 +02:00
Code Issues Projects Releases Packages Wiki Activity

Add inverter string detection to BYD CAN

Browse source
This commit is contained in:
Daniel 2024-01-27 23:20:18 +02:00
parent 78b69be460
commit fb5cf25cf9
1 changed files with 29 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

32
Software/src/inverter/BYD-CAN.cpp
View file

@ -9,6 +9,13 @@ static unsigned long previousMillis60s = 0; // will store last time a 60s CAN M
static const int interval2s = 2000; // interval (ms) at which send CAN Messages
static const int interval10s = 10000; // interval (ms) at which send CAN Messages
static const int interval60s = 60000; // interval (ms) at which send CAN Messages
static uint8_t char1_151 = 0;
static uint8_t char2_151 = 0;
static uint8_t char3_151 = 0;
static uint8_t char4_151 = 0;
static uint8_t char5_151 = 0;
static uint8_t char6_151 = 0;
static uint8_t char7_151 = 0;
//Startup messages
const CAN_frame_t BYD_250 = {
@ -172,13 +179,34 @@ void update_values_can_byd() { //This function maps all the values fetched from
//Temperature min
BYD_210.data.u8[2] = (temperature_min >> 8);
BYD_210.data.u8[3] = (temperature_min & 0x00FF);
#ifdef DEBUG_VIA_USB
if (char1_151 != 0) {
Serial.print("Detected inverter: ");
Serial.print((char)char1_151);
Serial.print((char)char2_151);
Serial.print((char)char3_151);
Serial.print((char)char4_151);
Serial.print((char)char5_151);
Serial.print((char)char6_151);
Serial.println((char)char7_151);
}
#endif
}
void receive_can_byd(CAN_frame_t rx_frame) {
switch (rx_frame.MsgID) {
case 0x151: //Message originating from BYD HVS compatible inverter. Reply with CAN identifier!
if (rx_frame.data.u8[0] & 0x01) {
if (rx_frame.data.u8[0] & 0x01) { //Battery requests identification
send_intial_data();
} else { // We can identify what inverter type we are connected to
char1_151 = rx_frame.data.u8[1];
char2_151 = rx_frame.data.u8[2];
char3_151 = rx_frame.data.u8[3];
char4_151 = rx_frame.data.u8[4];
char5_151 = rx_frame.data.u8[5];
char6_151 = rx_frame.data.u8[6];
char7_151 = rx_frame.data.u8[7];
}
break;
case 0x091:
@ -217,14 +245,12 @@ void send_can_byd() {
ESP32Can.CANWriteFrame(&BYD_150);
ESP32Can.CANWriteFrame(&BYD_1D0);
ESP32Can.CANWriteFrame(&BYD_210);
//Serial.println("CAN 10s done");
}
//Send 60s message
if (currentMillis - previousMillis60s >= interval60s) {
previousMillis60s = currentMillis;
ESP32Can.CANWriteFrame(&BYD_190);
//Serial.println("CAN 60s done");
}
}