PCB Release 7

Revised to replace MCU due to part availability.

As produced PCBWAY 9/14/2021

Replaces MCU with larger 64A size part due to availability.

Major reroute and had to switch flash LEDs to different pins. FOE now connected to MCU Vcc rather than IO pin.

As produced by ALLPCB 9/23/2019

• Rings rather than plated-thru mounting holes
• RTC input pin tied to Vcc

PCB Release candidate 6B

All files for PCBA pre-production test.

See....

	File	Desc
1.	/notes.txt	assembly notes
2.	/orientation photos	part orientation hints
3.	/mousebites.png	panelization hints

Test PCB Version 6 as produced PCBWAY 9/1/2019

Added new RX8900 10-SMD package component

Updated windows EXE files to have less DLL dependency

Only changes Windows tool packaging. Actual software and firmware unchanged.

Fixer daughterboard V1

First attempt to fix the static discharge problem on V5 PCBs by bonding the ground pin on the ISP to the aluminum endcap.

As submitted to PCBWAY 3/13/2019.

Firmware 1.40 with optimized LCD updates

This update adds in the new machine generated LCD update code that saves power in both Ready To Launch and Time Since Launch modes.

It also refines the eeprom block generator tool with additional options, and adds a new tool for viewing eeprom blocks in human readable format.

Probably the only outwardly visible change is that the boring dash pattern displayed after power up has been replaced with an ostentatious disco sine wave flourish.

Other changes include:

• Further refined documentation
• Cleaned up folder structure and deleted some dead files
• Switched around diagnostic pins so that "T" pin now shows clock time rather than "B" because "T"=Time is easier to remember, right?
  *Updated BOM to reflect the as-built flash LED part
  *Some updates to the PCB are also included, but these will be documented in a future PCB release. PCB work still in progress.

Firmware 1.03, refined programming cycle

New firmware sets the trigger pin line low after pin is pulled to try and mitigate static resets. This is based on the observation that resets are less likely when the pin is out (and therefore the switch is connecting the line to ground).

Refined burnthis.bat changes the screen color to make it easier to see success or failure, keeps firmware hash in an airtable database, keeps airtable API key in local windows register for security, and is generally cleaned up.

NOTE: Because there are now subdirectories in the programming directory, this release is in a zip file.

Programming cycle now creates record in airtable with serial number

Also potentially fixes the fuse write. Needs more documentation, but should work.