This is the revision A version of the Flame1 module.

Flame1 Module (Revision A)

Table of Contents

• 1. Introduction
• 2. Programming
• 3. Hardware
  • 3.1 Circuit Schematic
  • 3.2 Printed Circuit Board
• 4. Software
• 5. Issues

1. Introduction

The Flame1 module connects to a Hamamatsu^® R2868 ultraviolet flame detector tube. The R2868 tubes are available from Acroname^®.

This circuit is pretty much a complete knock-off of a circuit described by Tom Baraniak in an article in the September 2002 issue of Circuit Cellar (issue 146, pp. 58-61). Indeed, the intention is to use the microcode in his 8-pin PICC672 completely unmodified.

2. Programming

Command Name	Bit									Action	Description
	8	7	6	5	4	3	2	1	0
Common Commands	0	1	1	1	1	1	1	x	x	Send	Standard common command. See specifications for details.
	0	a	a	a	a	a	a	a	a	Receive
Select	1	a	a	a	a	a	a	a	a	Send	Select the module with an address of aaaa aaaa. A time-out indicates that the module is not selected.
	0	0	0	0	0	0	0	0	0	Receive

3. Hardware

The hardware consists of a circuit schematic and a printed circuit board.

The parts list kept in a separate file -- flame1.ptl.

3.1 Circuit Schematic

The schematic for the Flame1 module is shown below:

3.2 Printed Circuit Board

The printed circuit board files are listed below:

flame1_back.png

The solder side layer.

flame1_front.png

The component side layer.

flame1_artwork.png

The artwork layer.

flame1.gbl

The RS-274X "Gerber" back (solder side) layer.

flame1.gtl

The RS-274X "Gerber" top (component side) layer.

flame1.gal

The RS-274X "Gerber" artwork layer.

flame1.gml

The RS-274X "Gerber" mask layer.

flame1.drl

The "Excellon" NC drill file.

flame1.tol

The "Excellon" tool rack file.

4. Software

The following files are available:

flame1.ucl

The µCL source code for the Flame1 module.

flame1.asm

The Flame1 module assembly code file.

flame1.lst

The Flame1 module listing file.

flame1.hex

The µCL Flame1 Intel^® Hex file.

5. Issues

Any fabrication issues are listed here.