mjb/altos/src/stm, branch debian/1.2.1-2AltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=debian%2F1.2.1-22013-05-08T04:30:27+00:00altos: Wait after configuring boot pin before testing it2013-05-08T04:30:27+00:00Keith Packardkeithp@keithp.com2013-04-29T06:06:24+00:00urn:sha1:ecb128579e7576fc27c8ca93708f316b9ac91630
Clearly the pin isn't quite ready just after it's been configured, so
hang around for a while (100 nops) to let things setting down before
testing the value of the pin. Makes booting a lot more reliable.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Create per-product flash loaders2013-05-08T04:30:27+00:00Keith Packardkeithp@keithp.com2013-04-27T22:33:04+00:00urn:sha1:4a90eec4b8ee4a35711aa74c13b3f30d12c0fe08
Split the flash loader prototype into pieces so that each product can
build a custom flash loader with very little code.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Get rodata into flash, make sure sections are aligned2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-27T07:24:08+00:00urn:sha1:a2e0676f476b0e2bdd5102315ebd5904b57f384a
.rodata* needs to be in flash; otherwise strings get left in ram.
Failing to align sections makes the initialized data get dumped into
the wrong place in memory.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Run self loader when application sets boot addr to 02013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-27T07:20:47+00:00urn:sha1:0b1797312b34ba2b8121f82605f8d2c419167737
This causes the flash loader startup code to fall into the loader when
the application sets the boot address to zero.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Allow STM usb driver to be used without stdio2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-27T07:19:13+00:00urn:sha1:e2412e867138635d79ea0fa8d43efc0a6aa19784
This lets the self flashing loader be linked without any of the stdio
code, which saves a bunch of memory.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm-flash: Check target flash address against AO_BOOT_APPLICATION_BASE2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T02:08:35+00:00urn:sha1:afad5ae893a48785f3b50ff4125dc78648343a2d
Allows that value to change
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Use flash loader on all STM products2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T01:35:57+00:00urn:sha1:dfc268e0021e1cd3045f73339a749d292a6a6300
Includes the boot chain stuff
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Provide another 4kB of flash space for apps2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T01:33:33+00:00urn:sha1:8ded61d59888c79ef1f94e664b5fb770841a801a
With the flash loader now < 4kB, we can use the spare 4kB for applications
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Shrink stm flash loader to < 4kB2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T01:32:18+00:00urn:sha1:6cd015b8b6b02bd8e0ce28f248426ae75c242b53
Saves 4kB of flash space for applications.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Allow core timer to be excluded from build2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T01:30:31+00:00urn:sha1:02681adbc5919bd3713788da352aa36ace619ef4
This removes all of the support for the base 100Hz timer from the
system, saving space when not needed
Signed-off-by: Keith Packard <keithp@keithp.com>