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All communications with the hardware is done via registers. This page provides a detailed description of all available registers of the PiLC hardware.

FPGA registers

Identifikation Register

Address (Hex)	Name	Read	Value
0x64	FPGA ID	X	0xEC
0x65	FPGA_Hardware_Version	X	32Bit
0x66	FPGA_Software_Version	X	32Bit
0x67	FPGA_Projekt_Nr.	X	32Bit
0x68	FPGA_Projekt_Version	X	32Bit

IO Register

Address (Hex)	Name	Read	Write	Value
0x01	IO_1_Data_In_Register	x	x	32Bit
0x02	IO_1_Data_Out_Register	x	0	32Bit
0x03	IO_2_Data_In_Register	x	x	32Bit
0x04	IO_2_Data_Out_Register	x	0	32Bit
0x05	IO_3_Data_In_Register	x	x	32Bit
0x06	IO_3_Data_Out_Register	x	0	32Bit
0x07	IO_4_Data_In_Register	x	x	32Bit
0x08	IO_4_Data_Out_Register	x	0	32Bit
0x09	IO_5_Data_In_Register	x	x	32Bit
0x0A	IO_5_Data_Out_Register	x	0	32Bit
0x0B	IO_6_Data_In_Register	x	x	32Bit
0x0C	IO_6_Data_Out_Register	x	0	32Bit
0x0D	IO_7_Data_In_Register	x	x	32Bit
0x0E	IO_7_Data_Out_Register	x	0	32Bit
0x0F	IO_8_Data_In_Register	x	x	32Bit
0x10	IO_8_Data_Out_Register	x	0	32Bit
0x11	IO_9_Data_In_Register	x	x	32Bit
0x12	IO_9_Data_Out_Register	x	0	32Bit
0x13	IO_10_Data_In_Register	x	x	32Bit
0x14	IO_10_Data_Out_Register	x	0	32Bit
0x15	IO_11_Data_In_Register	x	x	32Bit
0x16	IO_11_Data_Out_Register	x	0	32Bit
0x17	IO_12_Data_In_Register	x	x	32Bit
0x18	IO_12_Data_Out_Register	x	0	32Bit
0x19	IO_13_Data_In_Register	x	x	32Bit
0x1A	IO_13_Data_Out_Register	x	0	32Bit
0x1B	IO_14_Data_In_Register	x	x	32Bit
0x1C	IO_14_Data_Out_Register	x	0	32Bit
0x1D	IO_15_Data_In_Register	x	x	32Bit
0x1E	IO_15_Data_Out_Register	x	0	32Bit
0x1F	IO_16_Data_In_Register	x	x	32Bit
0x20	IO_16_Data_Out_Register	x	0	32Bit

IO Status Register

Address (Hex)	Name	Read	Write	Value
0x21	IO_Data_Direction_Register	x	0	32Bit
0x22	IO_Status_Register	x	0	32Bit

IO-card registers

Identifikation Register

Address (Hex)

Name

Read

Write

State

0x64

Card Type ID

x

0

ID (Hex)	Card type
0x01	IO NIM/TTL card
0x02	ADC card
0x03	DAC card
0x04	Temperature card
0x05	Adapter card
0x06	Differential IO card (planned)
0x07	Differential ADC card
0x08	Thermo card

0x65

Hardware Version

x

0

8Bit

0x66

Software Version

x

0

8Bit

The identification register is common to all IO cards. The special registers for each type of IO card are described below.

NIM / TTL IO card register

Address (Hex)

Name

Read

Write

States

0x01

IO Status

x

Value (Hex)	State
0x01	TTL Input
0x02	TTL Output
0x03	NIM Input
0x04	NIM Output

ADC card register

Address (Hex)	Name	Read	Write	State
0x01	ADC Value High Byte	x	0	8Bit
0x02	ADC Value Low Byte	x	0	8Bit
0x03	Offset	x	x	8Bit
0x04	CPLD Firmware Version	x	0	8Bit

DAC card register

Address (Hex)	Name	Read	State
0x01	DAC Value High Byte read	x	8Bit
0x02	DAC Value Low Byte read	x	8Bit
0x04	CPLD Fimware Version read	x	8Bit

Temperature card register

Address (Hex)

Name

Read

Write

State

0x01

Temp. Value 1 Byte read

x

0

8Bit

0x02

Temp. Value 2 Byte read

x

0

8Bit

0x03

Temp.Value 3 Byte read

x

0

8Bit

0x04

Temp.Value 4 Byte read

x

0

8Bit

0x05

PT-Sensor

x

Value (Hex)	State
0x01	PT 10
0x02	PT 50
0x03	PT 100 default
0x04	PT 200
0x05	PT 500
0x06	PT 1000

0x06

PT-Strom

x

Value (Hex)	State
0x01	25µA
0x02	50µA
0x03	100µA
0x04	250µA
0x05	500µA default
0x06	1mA

Adapter card register

Adresse (Hex)

Name

Read

Write

Zustände

0x01

Value 1

x

0

8Bit

0x02

Value 2

x

0

8Bit

0x03

Value 3

x

0

8Bit

0x04

Value 4

x

0

8Bit

0x05

Filter

x

Value (Hex)	State
0x00	Filter Off
0x01	Filter over 2 Values
0x02	Filter over 4 Values
0x03	Filter over 8 Values
0x04	Filter over 16 Values
0x05	Filter over 32 Values
0x06	Filter over 64 Values
0x07	Filter over 128 Values
0x08	Filter over 256 Values
0x09	Filter over 516 Values
0x0A	Filter over 1024 Values

0x67

ID of the attached card

x

0

8Bit

DADC card register

Adresse (Hex)	Name	Read	Zustände
0x01	Value 1	x	8Bit
0x02	Value 2	x	8Bit
0x03	Value 3	x	8Bit
0x04	Value 4	x	8Bit
0x67	ID of the attached card	x	8Bit

Thermo card register

Adresse (Hex)

Name

Read

Write

Zustände

0x01

Value 1

x

0

8Bit

0x02

Value 2

x

0

8Bit

0x03

Value 3

x

0

8Bit

0x04

Value 4

x

0

8Bit

0x05

Error

x

0

Value	State
Bit 0	no connections
Bit 1	short-circuited to GND
Bit 2	short-circuited to VCC

0x06

Thermo Typ

x

0

8Bit (CHAR)

0x67

ID of the attached card

x

0

8Bit

IO board registers

Identifikation register

Adresse (Hex)	Name	Read	Zustände
0x64	IO Board ID	x	0xEC
0x65	Hardware Version	x	8Bit
0x66	Software Version	x	8Bit

Register

Register (Hex)

Name

Read

Write

States

0x01

IO LED 1

0

x

Value 1	Value 2	Value 3		Example
red	green	blue	color	interpretation
0x00	0x00	0x00	LED Aus	no card
0x00	0x00	0x64		NIM/TTL Output High
0x00	0x64	0x00		NIM/TTL Input High
0x00	0x64	0x64		ADC card
0x64	0x00	0x00		DAC card
0x64	0x00	0x64		NIM/TTL Input Low
0x64	0x64	0x00		NIM/TTL Output Low
0x64	0x32	0x00		Temperature card
0xXX	0xXX	0xXX		Adapter card - Farbe passt sich an

0x02

IO LED 2

0

x

0x03

IO LED 3

0

x

0x04

IO LED 4

0

x

0x06

IO LED 6

0

x

0x07

IO LED 7

0

x

0x08

IO LED 8

0

x

0x09

IO LED 9

0

x

0x0A

IO LED 10

0

x

0x0B

IO LED 11

0

x

0x0C

IO LED 12

0

x

0x0D

IO LED 13

0

x

0x0E

IO LED 14

0

x

0x0F

IO LED 15

0

x

0x10

IO LED 16

0

x

0x11

Status LED 1

0

x

0x12

Status LED 2

0

x

0x14

All LEDs have same color

0

x

0x15

LEDs Dimmen

0

x

Value 1	Value 2	Value 3
LED 18 & 17	LED 16 to 9	LED 8 to 1
0b000000XX	0bXXXXXXXX	0bXXXXXXXX

0x16

LEDs blinking

0

x

Value 1	Value 2	Value 3
LED 18 & 17	LED 16 to 9	LED 8 to 1
0b000000XX	0bXXXXXXXX	0bXXXXXXXX

0x17

Dimm Geschwindigkeit x*100ms

0

x

Value 1	Value 2	Value 3
0x00	0x00	0x00->0xFF

0x18

Blink Geschwindigkeit x*100ms

0

x

Value 1	Value 2	Value 3
0x00	0x00	0x00->0xFF

Display registers

Identification Register

Address (Hex)	Name	Read	State
0x64	IO Board ID	x	0xEC
0x65	Hartware Version	x	8Bit
0x66	Software Version	x	8Bit

Register

Address (Hex)

Name

Read

Write

State

0x01

Status

x

Value (Hex)	State
0x00	Brightness is automatically adjusted (Default)
0x01	Brightness adjusted by Poti on main board (Display Leiterplatte)
0x02	Brightness is adjusted by the Brighness Value (see 0x02)
0x03	Display off

0x02

Brightness Value

x

8 Bit

Mainboard registers

Register

Address (Hex)	Name	Read	State
0x64	IO Board ID	x	0xEC
0x65	Hartware Version	x	8Bit
0x66	Software Version	x	8Bit

Register

Adresse (Hex)

Name

Read

Write

States

0x01

USV Status

x

Value (Hex)	State
0x00	USV deactivated
0x01	USV active (Default)

0x02

Charging Status

x

Value (Hex)	State
0x00	Battery charging off
0x01	Battery charging on (Default)

0x03

USV Überbrückungszeit nach Stromausfall in sek.

x

8Bit (Value * Seconds)

0x04

Time after power failure in seconds

x

0

8Bit (Value * Seconds)

0x05

Charging controller status

x

0

Value (Hex)	State
0x00	Charging controller deactivated / no input voltage
0x01	Charging controller standby / no battery attached
0x03	Battery fully charged
0x04	Battery voltage is low
0x05	Battery is charging
0x07	Temperature failure / Timer failure

0x06

Audio-Volume

x

Value (Hex)	State
0x2B	Volume_Low
0x35	Volume_Medium (Default)
0x63	Volume_High

0x07

Battery voltage MSB read

x

0

8Bit

0x08

Battery voltage LSB read

x

0

8Bit