PSU Setup - Geowissenschaften/EXCISS GitHub Wiki

The following step by step instruction must be executed, to change some of the factory default values, to match the exciss requirements.

Required hardware

EV2400 - USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module

Software preparation

Install bqStudio:

BatteryManagementStudio-1.3.54.1_Build1 (sluc525u)

Update bqStudio Chemistry Database:

download: bqStudio Chemistry Updater (Rev. EE) - ChemUpdate632 (sluc564dw)
copy files in Chemitry foler to: ..\TI\BatteryManagementStudio\chemistry

Update Charger definiton:

download: Charger_1_00-bq25700A.bqz
copy to: ..\TI\BatteryManagementStudio\config\

Update Gauge definition:

download: bq40z50-R2 Gauging Embedded Firmware v2.11 (sluc649)
copy: 4500_2_11-bq40z50R2.bqz to ..\TI\BatteryManagementStudio\config\
use: bq40z50R2_v2_11_build_52.srec for fimware update (description below)

Change bqStudio View Type

In the Window menu select Preferences
click on All Global Settings
under Battery Management Studio (bqStudio) View Type choose: Show Advanced Views

Charger

The charger IC doesn't require to be prepared. All the pre define parameters are define as hardware based values. Some parameters must be defined during runtime by the MCU.

Gauge Preparation

The gauge IC requires some preparation before first usage. Follow the step by step instruction to prepare the gauge before productive usage.

Connect PSU's SMBus TI EV2400 USB Adapter.
Power up PSU

Gauge firmware update

Start bqStudio
select gauge and click next
select 4500_2_11-bq40z50R2.bqz and click Finish
click OK
click Firmware
select bq40z50R2_v2_11_build_52.srec (mentioned above in Software preparation: Update Gauge definition)
click Program
restart bqStudio

Gauge battery parameters

Update cell chemistry

A chemistry database update might be required to add the required chem-id(2152) (mentioned above in Software preparation: Update bqStudio Chemistry Database:)

select chemid: 2152
click on Update Chemistry from Database

Update Gas Gauging parameters

click Data Memory
click Gas Gauging
set Design Capacity mAh (under Design) to: 3500mAh
set Design Capacity cWh (under Design) to: 5089cWh

(Nominal Voltage (V) * cell count * capacity(Ah) * 100 =

3,635V * 4 * 3,5Ah * 100 = 5089cWh)
set Design Voltage (under Design) to: 14540mV

(Nominal voltage (mV) * cell count)
set Chg Current Threshold (under Current Thresholds) to: 30mA
set Term Voltage (under IT Cfg) to: 12000mV

(3000mV * cell count)
set Load Mode (under IT Cfg) to: 1 (constant power)

Advanced Charge Alorithm parameters

click Data Memory
click Advanced Charge Alorithm
set Charge Term Taper Current (under Termination Config) to: 50mA

Considerations

We need to ensure:

Taper Current > Chg Current Threshold > Quit Current
Dsg Current Threshold > Quit Current

Gauge change DA Configuration (0x0012 -> 0x0117)

SLUUBK0A page 150

gauge change DA configuration 0x0012-0x0117

click Data Memory
click on Settings
click on DA Configuration (under Configuration)
toggle NR (red)

NR (Bit 2) = 1 (Use PRES in system detection: NON-REMOVABLE mode)
toggle CC0 (red)

CC1, CC0 (Bit 1,0): Cell Count set to CC1 = 1, CC0 = 1 (Cell Count: 4 cell)
toggle EMSHUT_PEXIT_DIS (red)

EMSHUT_PEXIT_DIS (BIT 8) = 1 (Prevents usage of SHUTDN pin as exit option)

Gauge change Temperature Mode (0x0004 -> 0x001)

SLUUBK0A page 149

gauge change temperature mode 0x0004-0x0001

click Data Memory
click on Settings
click on Temperature Mode (under Configuration)
toggle TS2 Mode (green)

TS2 Mode (Bit 2) = 1 (Cell temperature)
toggle TSInt Mode (red)

TSInt Mode (Bit 0) = 1 (FET temperature)

Gauge change Temperature Enable (0x0006 -> 0x01f) 1e

SLUUBK0A page 148

click Data Memory
click on Settings
click on Temperature Enable (under Configuration)
toggle TSint (red)

TSint (Bit 0) = 1 (Enable internal TS)
toggle TS3 (red)

TS3 (Bit 3) = 1 (Enable TS4)
toggle TS4 (red)

TS3 (Bit 4) = 1 (Enable TS4)

Gauge Mfg Status init (0x0000 -> 0x0010)

SLUUBK0A page 161

gauge mfg status init 0x0000->0x0010

toggle FET_EN (red)

FET_EN (Bit 4) = 1 (All FET Action: Enabled)
Power cycle PSU

Gauge change FET Options (0x0020 -> 0x0024)

SLUUBK0A page 138

click Data Memory
click on Settings
click on FET Options (under Configuration)
toggle OTFET (red)

OTFET (Bit 2) = 1 (CHG and DSG FETs will be turned off for overtemperature conditions)

Gauge Calibration

Explained at the end of this page

Gauge Mfg Status init (0x0010 -> 0x00b8)