From a6ab1919ebdc9fab74774d9031941aa56cc6206b Mon Sep 17 00:00:00 2001
From: songyueli <songyuedavidli@gmail.com>
Date: Fri, 12 Jun 2026 01:44:43 -0400
Subject: [PATCH] bring back detailed bms

---
 PCAN_project/hytech.sym | 66 +++++++++++++++++++++++++++++++----------
 1 file changed, 51 insertions(+), 15 deletions(-)

diff --git a/PCAN_project/hytech.sym b/PCAN_project/hytech.sym
index 7e09036..3468e10 100644
--- a/PCAN_project/hytech.sym
+++ b/PCAN_project/hytech.sym
@@ -34,23 +34,14 @@ Enum=drivetrain_stateE(0="NOT_CONNECTED", 1="NOT_ENABLED_NO_HV_PRESENT", 2="NOT_
   3="INVERTERS_READY", 4="INVERTERS_HV_ENABLED", 5="ENABLED_DRIVE_MODE", 6="ERROR", 7="CLEARING_ERRORS")
 
 {SIGNALS}
-Sig=thermistor_group_id unsigned 4
-Sig=cell_group_id unsigned 4
+Sig=group_id unsigned 4
 Sig=total_charge unsigned 32 /u:Coulombs /f:0.0001 // UNUSED SIGNAL. See legacy AMS firmware (code-2024) for usage.
 Sig=total_discharge unsigned 32 /u:Coulombs /f:0.0001 // UNUSED SIGNAL. See legacy AMS firmware (code-2024) for usage.
 Sig=chip_id unsigned 4
-Sig=thermistor_cell_group_temp_0 signed 16 /f:0.01
-Sig=thermistor_cell_group_temp_1 signed 16 /f:0.01
-Sig=thermistor_cell_group_temp_2 signed 16 /f:0.01
-Sig=thermistor_cell_group_temp_3 signed 16 /f:0.01
-Sig=cell_group_voltage_0 unsigned 16 /f:0.0001
-Sig=cell_group_voltage_1 unsigned 16 /f:0.0001
-Sig=cell_group_voltage_2 unsigned 16 /f:0.0001
-Sig=temp_0 signed 16 /u:"Deg C" /f:0.01
 Sig=max_board_temp signed 16 /u:"Deg C" /f:0.01
 Sig=min_cell_temp signed 16 /u:"Deg C" /f:0.01
 Sig=max_cell_temp signed 16 /u:"Deg C" /f:0.01
-Sig=shdn_out_voltage_state unsigned 8
+Sig=charging_requested unsigned 8
 Sig=overvoltage_error unsigned 1 /u:none // Whether or not the energy meter is reading an over-voltage error.
 Sig=undervoltage_error unsigned 1
 Sig=total_voltage_high_error unsigned 1
@@ -63,7 +54,7 @@ Sig=overtemp_error unsigned 1
 Sig=current signed 16 /f:0.01
 Sig=shutdown_g_above_threshold_error unsigned 1
 Sig=shutdown_h_above_threshold_error unsigned 1
-Sig=average_voltage unsigned 16 /u:V /f:0.0001
+Sig=average_cell_voltage unsigned 16 /u:V /f:0.0001
 Sig=min_cell_voltage unsigned 16 /f:0.0001
 Sig=max_cell_voltage unsigned 16 /u:V /f:0.0001
 Sig=total_voltage unsigned 16 /f:0.01
@@ -688,21 +679,66 @@ Sig=steering_both_sensors_fail bit
 Sig=steering_interface_sensor_error bit
 Sig=in_steering_calibration_state bit // Input from VCR to tell VCF if steering can calibrate or not
 Sig=dim_button bit // Dim button on dash
+Sig=average_temp signed 16 /u:"Deg C" /f:0.01
+Sig=min_temp signed 16 /f:0.01
+Sig=max_temp signed 16 /u:"deg C" /f:0.01
+Sig=ic_id unsigned 4
+Sig=temp_0 signed 16 /u:"Deg C" /f:0.01
+Sig=temp_1 signed 16 /u:"Deg C" /f:0.01
+Sig=total_pack_voltage unsigned 16 /f:0.01
+Sig=voltage_0 unsigned 16 /f:0.0001
+Sig=voltage_1 unsigned 16 /f:0.0001
+Sig=voltage_2 unsigned 16 /f:0.0001
+Sig=thermistor_id_0 signed 16 /f:0.01
+Sig=thermistor_id_1 signed 16 /f:0.01
+Sig=thermistor_id_2 signed 16 /f:0.01
 
 {SENDRECEIVE}
 
 [BMS_STATUS]
 ID=0DBh
 Len=1
-Sig=shdn_out_voltage_state 0
+Sig=charging_requested 0
 
 [BMS_VOLTAGES]
 ID=0D7h
 Len=8
-Sig=average_voltage 0
+Sig=average_cell_voltage 0
 Sig=min_cell_voltage 16
 Sig=max_cell_voltage 32
-Sig=total_voltage 48
+Sig=total_pack_voltage 48
+
+[BMS_DETAILED_TEMPS]
+ID=0DAh
+Len=7
+Sig=group_id 0
+Sig=ic_id 4
+Sig=thermistor_id_0 8
+Sig=thermistor_id_1 24
+Sig=thermistor_id_2 40
+
+[BMS_DETAILED_VOLTAGES]
+ID=0D8h
+Len=7
+Sig=group_id 0
+Sig=ic_id 4
+Sig=voltage_0 8
+Sig=voltage_1 24
+Sig=voltage_2 40
+
+[BMS_BOARD_DETAILED_TEMPS]
+ID=0D6h
+Len=5
+Sig=ic_id 0
+Sig=temp_0 8
+Sig=temp_1 24
+
+[BMS_TEMPS]
+ID=0D9h
+Len=6
+Sig=max_board_temp 0
+Sig=min_cell_temp 16
+Sig=max_cell_temp 32
 
 [CCU_STATUS]
 ID=0DDh