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| − | These are the routines that turn the juice box in to a cheap serial graphics display.
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| − | unix_driver.pl is an example perl unix driver program.
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| − | winms_driver.pl is an example perl windows driver program.
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| − | display.c is the c program on the juicebox. Look at this program for documentation.
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| − | planet571.jbp and stonehenge.jbp are sample backgrounds but any valid *.jbp can be used as a background. The ex
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| − | driver displays a realtime cpu usage and memory usage on a scrolling grid as well as bargraphs. I alpha blended
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| − | ts so the graphics are partially transparent. I have written all of the 12 bit color routines so you have full access to the 4096 colors(I needed them for the alpha blending).
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| − | Do the usual make -f display.mak, then load it onto the juice box
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| − | example from openocd:
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| − | load_binary /home/steve/juice_box/display/comm_1.bin 0x0c001000
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| − | resume 0x0c001000
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| − | or if you are one of the few with a fatjbox just put display.bin on your sd card and run.
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| − | From another terminal window run the perl driver program (note the two nonstandard modules Device::SerialPort 0
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| − | d Time::HiRes)
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| − | example:
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| − | ./unix_driver.pl planet571.jbp
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| − | The perl driver program supplies the data over the serial port of the pc to the juicebox.
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| − | I assuming that you have a serial port attached to the juice box.
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| − | You can define bitmaps on the pc, download them over the serial port and display them on the juicebox. The barg
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| − | raph and the grid are two intrinsic graphics types that the juice box display program already knows about.
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| − | Future development:
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| − | I hope someone who is clever will rewrite these routines to only use the jtag port. The arm7 has a software bre
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| − | ak instruction,so it is possible to watch the jtag port and wait for the display program running on the juicebo
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| − | x to "break", then jtag data into a register and jtag a continue instruction. This would eliminate the costly s
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| − | erial port. You can build a jtag for less than $5. Using the jtag also eliminates the need for the sd/xd hack.
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| − | So you can use the juice box as a cheap graphics display for your projects like geeXboX or other HTPC.
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| − | [[Display.tar.gz]]
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