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* ao-bringup-avr: cleaner stack switching codeKeith Packard2011-05-13
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: clean up alternate stack codeKeith Packard2011-05-13
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: switching to alternate stack worksKeith Packard2011-05-13
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Create common 'ao-bringup' interfacesKeith Packard2011-05-12
| | | | | | Initializes the clock, configures STDIO to talk to the UART Signed-off-by: Keith Packard <keithp@keithp.com>
* Add uart testKeith Packard2011-05-12
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* Run on new stackKeith Packard2011-05-12
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* ao-bringup-avr: Switch to ADC13Keith Packard2011-05-12
| | | | | | That's what Bdale has wired up in his test setup. Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Flip to 8MHz clock for TeleScienceKeith Packard2011-05-11
| | | | | | The Teensy uses a 16MHz crystal, but TeleScience has an 8MHz crystal. Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Make LED PWM from ADC0 valueKeith Packard2011-05-11
| | | | | | Test ADC inputs by adjusting the waveform using the ADC0 input. Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Initialize crystal clock and 100Hz timer interruptKeith Packard2011-05-11
| | | | | | Just demonstrating further features of the chip Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Enable crystal clock in blink demoKeith Packard2011-05-11
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: fix blinking code to actually drive the pin as outputKeith Packard2011-05-03
| | | | | | Mis-configured the DDR register setting the wrong pin to output. Signed-off-by: Keith Packard <keithp@keithp.com>
* ao-bringup-avr: Add very primitive 'blink' to toggle the 32u4 B7 lineKeith Packard2011-05-03
This should permit basic testing of the chip. Signed-off-by: Keith Packard <keithp@keithp.com>