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# Revisionhistory of PC_DIMMER Firmware #
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v1.0
-> Initial Firmware-Release

v1.1
-> Changed LED behaviour. Now Status-/Receive-LED is normally off

v2.0
-> Firmware now with 128 channel support for PC_DIMMER Software v2.0 and above
-> Added SW1 and SW2 on PD2 and PD4 to address setting
-> Added a new byte for receiving additional bits for up to 16 devices on RS232-bus
-> Changed bit- and byte-order in rs232-data-frame
-> Commented some curve-settings (needed the inputs for addressing)
-> Removed some testfunctions

v2.0b
-> Fixed a bug on reboot. The synchronisation to 50/60Hz was not found correctly

v2.0c
-> cleaned the source - no changes

v2.0d
-> Added linear dimming table

v2.0e (15.09.2005 - Beta)
-> Faster RS232-communication with up to 38400 Bit/s (only with upcoming PC_DIMMER v2.1.1.5)
-> Automatic deactivation of CKDIV/8-Fusebit of ATtiny2313
-> Change the INT0-Routine to avoid wrong interrupt-calling by disturbance in mains-AC (first try!)

v2.0f (21.09.2005)
-> Changed the Prell-Filter for filtering wrong interrupt-requests
-> Status LED now works again
-> Fixed some internal problems

v2.1b
-> Removed new Prell-Filter - wasn't good and made problems only (sometimes the dimmer dimms around on its own)
-> Removed automatic deactivation of CKDIV/8-Fusebit of ATtiny2313 - did not work
-> Faster RS232-communication with up to 57600 Bit/s

v2.1c (17.01.2006)
-> Switched down RS232-communcation to 38400 Bit/s because of huge errors in signal with bad lines

v2.2b (02.03.2006)
-> Added ZC-Error-Detection to the StatusLED. If LED stays on darkly, the ZC-Signal is missing.
-> Support for 115.200 Baud/s (you have to use a 7,3728 MHz crystal)
-> Support for native sending of statusinformation over the RS232-port (still beta and disabled up to now)

v2.3 (04.08.2006)
-> Added SoftID - please change the address with the PC_DIMMER diagnostic-program
-> Added sending statusinformation over the RS232-port

v2.3e (29.11.2006)
-> fixed a bug with wrong pullup-settings on PortD

v2.4 (08.12.2009)
-> firmware is now compatible to DMX512-Dimmerpack-PCBs

D1 = LED Yellow (old boards) and RS232-TxD
D4 = LED Green
D5 = LED Yellow


RS232-Bit 2 = send status infos to computer
RS232-Bit 3 = send channel infos to computer
RS232-Bit 4 = change startaddress of device
RS232-Bit 5 = not used
RS232-Bit 6 = set Port on D6



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# Revisionhistory for PC_DIMMER Hardware-Interface-Firmware #
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v1.0 (Interface)
Prerelease-Beta

v1.1 (Interface) (17.01.2006)
-> Official Beta

v1.5 (Interface) (02.03.2006)
-> Support for 115.200 Baud/s (you have to use a 7,3728 MHz crystal)
-> Added receiving RS232-Dataframesfor synchronisation
-> Lots of bugfixes
-> cleaned up the code

v1.6b (04.08.2006)
-> Fixed display-corruption on receiving bad RS232-frame