Add skeleton for CMFA-EV battery

Software/USER_SETTINGS.h

@@ -17,6 +17,7 @@
 //#define FOXESS_BATTERY
 //#define CELLPOWER_BMS
 //#define CHADEMO_BATTERY	//NOTE: inherently enables CONTACTOR_CONTROL below
+#define CMFA_EV_BATTERY
 //#define IMIEV_CZERO_ION_BATTERY
 //#define JAGUAR_IPACE_BATTERY
 //#define KIA_E_GMP_BATTERY
@@ -66,7 +67,7 @@
 //#define SUNGROW_CAN      //Enable this line to emulate a "Sungrow SBR064" over CAN bus
 
 /* Select hardware used for Battery-Emulator */
-//#define HW_LILYGO
+#define HW_LILYGO
 //#define HW_STARK
 //#define HW_3LB
 //#define HW_DEVKIT

Software/src/battery/BATTERIES.h

@@ -38,6 +38,10 @@ void setup_can_shunt();
 #include "CHADEMO-SHUNTS.h"
 #endif
 
+#ifdef CMFA_EV_BATTERY
+#include "CMFA-EV-BATTERY.h"
+#endif
+
 #ifdef FOXESS_BATTERY
 #include "FOXESS-BATTERY.h"
 #endif

Software/src/battery/CMFA-EV-BATTERY.cpp

@@ -0,0 +1,108 @@
+#include "../include.h"
+#ifdef CMFA_EV_BATTERY
+#include "../datalayer/datalayer.h"
+#include "../devboard/utils/events.h"
+#include "CMFA-EV-BATTERY.h"
+
+/*
+TODO:
+
+/*
+
+/* Do not change code below unless you are sure what you are doing */
+
+CAN_frame ZOE_423 = {.FD = false,
+                     .ext_ID = false,
+                     .DLC = 8,
+                     .ID = 0x423,
+                     .data = {0x07, 0x1d, 0x00, 0x02, 0x5d, 0x80, 0x5d, 0xc8}};
+
+static unsigned long previousMillis100 = 0;
+
+void update_values_battery() {  //This function maps all the values fetched via CAN to the correct parameters used for modbus
+  datalayer.battery.status.soh_pptt;
+
+  datalayer.battery.status.real_soc;
+
+  datalayer.battery.status.current_dA;
+
+  datalayer.battery.status.voltage_dV;
+
+  //Calculate the remaining Wh amount from SOC% and max Wh value.
+  datalayer.battery.status.remaining_capacity_Wh = static_cast<uint32_t>(
+      (static_cast<double>(datalayer.battery.status.real_soc) / 10000) * datalayer.battery.info.total_capacity_Wh);
+
+  datalayer.battery.status.max_discharge_power_W;
+
+  datalayer.battery.status.max_charge_power_W;
+
+  datalayer.battery.status.temperature_min_dC;
+
+  datalayer.battery.status.temperature_max_dC;
+
+  datalayer.battery.status.cell_min_voltage_mV;
+
+  datalayer.battery.status.cell_max_voltage_mV;
+}
+
+void handle_incoming_can_frame_battery(CAN_frame rx_frame) {
+  switch (rx_frame.ID) {  //These frames are transmitted by the battery
+    case 0x127:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x3D6:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x3D7:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x3D8:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x43C:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x431:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x5A9:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x5AB:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x5C8:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    case 0x5E1:
+      datalayer.battery.status.CAN_battery_still_alive = CAN_STILL_ALIVE;
+      break;
+    default:
+      break;
+  }
+}
+
+void transmit_can_battery() {
+  unsigned long currentMillis = millis();
+  // Send 100ms CAN Message
+  if (currentMillis - previousMillis100 >= INTERVAL_100_MS) {
+    // Check if sending of CAN messages has been delayed too much.
+    if ((currentMillis - previousMillis100 >= INTERVAL_100_MS_DELAYED) && (currentMillis > BOOTUP_TIME)) {
+      set_event(EVENT_CAN_OVERRUN, (currentMillis - previousMillis100));
+    }
+  }
+}
+
+void setup_battery(void) {  // Performs one time setup at startup
+  strncpy(datalayer.system.info.battery_protocol, "CMFA platform 26.8/27.4kWh", 63);
+  datalayer.system.info.battery_protocol[63] = '\0';
+  datalayer.system.status.battery_allows_contactor_closing = true;
+  datalayer.battery.info.number_of_cells = 96;
+  datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_DV;
+  datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_DV;
+  datalayer.battery.info.max_cell_voltage_mV = MAX_CELL_VOLTAGE_MV;
+  datalayer.battery.info.min_cell_voltage_mV = MIN_CELL_VOLTAGE_MV;
+  datalayer.battery.info.max_cell_voltage_deviation_mV = MAX_CELL_DEVIATION_MV;
+}
+
+#endif  //CMFA_EV_BATTERY

Software/src/battery/CMFA-EV-BATTERY.h

@@ -0,0 +1,15 @@
+#ifndef CMFA_EV_BATTERY_H
+#define CMFA_EV_BATTERY_H
+#include "../include.h"
+
+#define BATTERY_SELECTED
+#define MAX_PACK_VOLTAGE_DV 4200  //5000 = 500.0V
+#define MIN_PACK_VOLTAGE_DV 3000
+#define MAX_CELL_DEVIATION_MV 150
+#define MAX_CELL_VOLTAGE_MV 4250  //Battery is put into emergency stop if one cell goes over this value
+#define MIN_CELL_VOLTAGE_MV 2700  //Battery is put into emergency stop if one cell goes below this value
+
+void setup_battery(void);
+void transmit_can_frame(CAN_frame* tx_frame, int interface);
+
+#endif