Back to VSCP Modules

Current hardware version, 0.0.1
Current firmware version: 0.0.1

Got to http://www.grodansparadis.com for up to date info

• Version 0.0.1: Sourceforge Download area |

• JPEG for schema: Will be published soon.
• JPEG for Board: Will be published soon.

The Accra counter module is an is an open hardware and software six input counter module. Two of them are high frequency counters which can be used for frequency measurements. Its designed for the VSCP (Very Simple Control Protocol) for use over CAN (Controller Area Network).

The module is built around a Microchip PIC 18F2580 and the code is written in C using the Microchip MCC-18 compiler.

The Accra counter module can be powered with 9-16V DC and draws about 0.15W.

The Accra counter module can be powered with 9-16V DC and draws about 0.15W.

Material for the box: Polycarbonate (UL 94-V1)

Grey

IP20

B17,7×H89×D59 mm

The Accra counter module is also available in the form of a bare PCB for home builders.

The module, the PCB and components for it can be bought at http:// www.eurosource.se

The module have screw connections on two sides. One side is for CAN and power (marked “CAN + Power” ) and the other side is for the sensor (marked “sensor”).

Register 0(0x00) - Zone.
Register 1(0x01) - SubZone.

Register 2(0x02) - Status register for counter 1. Read/write
Register 3(0x03) - Status register for counter 2. Read/write
Register 4(0x04) - Status register for counter 3. Read/write
Register 5(0x05) - Status register for counter 4. Read/write
Register 6(0x06) - Status register for counter 5. Read/write
Register 7(0x07) - Status register for counter 6. Read/write

bit 0 - Set to one to activate counter. 
bit 1 - Set to one for persistence.
bit 2 -
bit 3 -
bit 4 -
bit 5 -
bit 6 - 
bit 7 - Set to one to reset counter.

Register 8(0x08) - Counter 0 MSB. Read/Write
Register 9(0x09) - Counter 0. Read/Write
Register 10(0x0A) - Counter 0. Read/Write
Register 11(0x0B) - Counter 0. LSB. Read/Write

Register 12(0x0C) - Counter 1 MSB. Read/Write
Register 13(0x0D) - Counter 1. Read/Write
Register 14(0x0E) - Counter 1. Read/Write
Register 15(0x0F) - Counter 1. LSB. Read/Write

Register 16(0x10) - Counter 2 MSB. Read/Write
Register 17(0x11) - Counter 2. Read/Write
Register 18(0x12) - Counter 2. Read/Write
Register 19(0x13) - Counter 2. LSB. Read/Write

Register 20(0x14) - Counter 3 MSB. Read/Write
Register 21(0x15) - Counter 3. Read/Write
Register 22(0x16) - Counter 3. Read/Write
Register 23(0x17) - Counter 3. LSB. Read/Write

Register 24(0x18) - Counter 4 MSB. Read/Write
Register 25(0x19) - Counter 4. Read/Write
Register 26(0x20) - Counter 4. Read/Write
Register 27(0x21) - Counter 4. LSB. Read/Write

Register 28(0x22) - Counter 5 MSB. Read/Write
Register 29(0x23) - Counter 5. Read/Write
Register 30(0x24) - Counter 5. Read/Write
Register 31(0x25) - Counter 5. LSB. Read/Write

Register 32(0x26) - Counter 1 Frequency MSB. Read Only
Register 33(0x27) - Counter 1 Frequency. Read Only
Register 34(0x28) - Counter 1 Frequency. Read Only
Register 35(0x29) - Counter 1 Frequency. LSB. Read Only

Register 36(0x2A) - Counter 2 Frequency MSB. Read Only
Register 37(0x2B) - Counter 2 Frequency. Read Only
Register 38(0x2C) - Counter 2 Frequency. Read Only
Register 39(0x2D) - Counter 2 Frequency. LSB. Read Only

The module does not have a decision matrix.

None.

Bit 0 - Overflow occurred on counter 1 
Bit 1 - Overflow occurred on counter 2
Bit 2 - Overflow occurred on counter 3
Bit 3 - Overflow occurred on counter 4
Bit 4 - Overflow occurred on counter 5
Bit 5 - Overflow occurred on counter 6
Bit 6 - 
Bit 7 - 

Alarm is sent when counter overflows.

Class: 0x001 
Type: 0x02

Package:

Byte 0: index.
Byte 1: Zone
Byte 2: Subzone

• Index is 0 - Counter overflow counter 1
• Index is 1 - Counter overflow counter 2
• Index is 2 - Counter overflow counter 3
• Index is 3 - Counter overflow counter 4
• Index is 4 - Counter overflow counter 5
• Index is 5 - Counter overflow counter 6