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* Don't disable interrupts before saving interrupt flag on AVRKeith Packard2012-03-28
| | | | | | | This ignores the interrupt disabled state, so we'd always leave ao_yield with interrupts disabled. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Add i2c driver for avr chipKeith Packard2011-10-27
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Split out arch-specific bits of LCD driverKeith Packard2011-10-11
| | | | | | The arch-specific section just puts a single nibble to the device. Signed-off-by: Keith Packard <keithp@keithp.com>
* Bump to 1.0.9.31.0.9.3Keith Packard2011-10-11
| | | | | | TeleScience and TelePyro now work. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: telescience doesn't have room for the flash write codeKeith Packard2011-10-11
| | | | | | | This is useful for debugging the SPI and flash drivers, but not necessary in production code. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Shrink default stack size to use less ramKeith Packard2011-10-11
| | | | | | | Not that we have any way of knowing how much stack we're using, but at least this seems to work. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Clear SPI receive buffer before clocking new data inKeith Packard2011-10-11
| | | | | | | I don't know why this is necessary, but the receive buffer gets 'extra' data added somehow. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Pull-up on the SPI slave select pinKeith Packard2011-10-11
| | | | | | This makes the board work even when disconnected from TeleMetrum. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Register stdio handler when using serial for stdinKeith Packard2011-10-11
| | | | | | This code was left in a bit of a mess; just clean it up. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: telescience does not have a serial portKeith Packard2011-10-11
| | | | | | The USART is used for SPI to talk to the flash part. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Make ao_arch_critical argument be a statementKeith Packard2011-10-11
| | | | | | | Wrap the argument to ao_arch_critical in do { } while (0); to make sure it gets correctly checked as a statement. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: Print newline after dumping ADC valuesKeith Packard2011-10-11
| | | | | | Cleans up the formating a bit. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/avr: SPI mutex is now held by the caller, not the SPI driverKeith Packard2011-10-11
| | | | | | | | | SPI transactions generally require a read followed by a write, with the chip select held the whole time. As a result, the SPI bus must be held across multiple transactions. To make this reliable, the caller must hold the SPI mutex, instead of the underlying SPI driver. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Debug code for telepyro doesn't fit in telescienceKeith Packard2011-09-23
| | | | | | Just too many strings. Signed-off-by: Keith Packard <keithp@keithp.com>
* Dump test conversion of ADC0Keith Packard2011-09-21
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* Dump ADC registersKeith Packard2011-09-21
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* add missing sense_h entry in TelePyro tableBdale Garbee2011-09-21
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* altos: Add TelePyro v0.1 supportKeith Packard2011-09-21
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: SPI slave code is now per-productKeith Packard2011-09-21
| | | | | | | We can't write general purpose SPI slave code as we must eliminate any latency because the SPI ports have no buffering. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Split avr clock initialization to ao_clock.cKeith Packard2011-08-29
| | | | | | This will be shared with the attiny code for TeleTerra v0.1 Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Share log code between telescience and telebt. Add telebt logKeith Packard2011-08-27
| | | | | | | | Telescience and telebt both log data in 32-byte chunks, so share some code which manages that between the two products. Add simple telemetry logging to telebt. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Integrate telescience supportKeith Packard2011-08-26
| | | | | | Adds a few drivers including an LCD driver Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: get avr-demo to build. Pull in AVR drivers and LCD driverKeith Packard2011-08-25
| | | | | | | This completes the basic task of making an AVR version of altos by getting the Teensy 'avr-demo' program to build. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: add GCC/SDCC compat macros, init_stack, save_context and GCC stdio hooksKeith Packard2011-08-25
| | | | | | | | | | | | | | More arch-indepdency bits. GCC stdio is different from SDCC, so create suitable code in avr/ao_avr_stdio.c Create macros to initialize the task stack frame and save the task context. Add GCC/SDCC type definition compatibility macros Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: AVR changes - create ao_arch.h files, define ao_arch_rebootKeith Packard2011-08-25
Start pulling changes needed for avr port; architecture-specific code will live in <architcture>/ao_arch.h. This first change defines the ao_arch_reboot macro to reboot the microcontroller. Signed-off-by: Keith Packard <keithp@keithp.com>
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