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Update README.md

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# The Cricket! - ProDOS Clock Driver
# _The Cricket!_ — ProDOS Clock Driver
I acquired a Cricket sound/clock peripheral on eBay. Therefore it is now critical that we have a conforming ProDOS clock driver for it.
@ -6,7 +6,7 @@ I acquired a Cricket sound/clock peripheral on eBay. Therefore it is now critica
## Background
"The Cricket!" by Street Electronics Corporation, released in 1984, is a hardware peripheral for the Apple //c computer. It plugs into the serial port and offers a multi-voice sound synthesizer, a speech synthesizer, and a real-time clock.
_"The Cricket!"_ by Street Electronics Corporation, released in 1984, is a hardware peripheral for the Apple //c computer. It plugs into the serial port and offers a multi-voice sound synthesizer, a speech synthesizer, and a real-time clock.
The disks supplied with the device include:
* `/CRICKET/PRODOS.MOD` which can be BRUN to patch ProDOS in memory with a clock driver.
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Cricket Manual on Asimov:
* ftp://ftp.apple.asimov.net/pub/apple_II/documentation/hardware/sound/Street%20Electronics%20The%20Cricket.pdf
## FYI...
In the Cricket manual there is a short sample BASIC program to set the clock without the use of any assembly routines, using `PR#2` to talk to the serial card followed by `PRINT` statements. This does not appear to work from ProDOS with the clock driver in place - the time ends up temporarily scrambled until the clock sorts itself out again. Assembly language routines do work, however. I believe ProDOS attempts to read the clock during the execution of the basic program, which interferes the device.