mjb/altos/src/stmf0, branch 1.8.4

altos/stm: Align 'data' to 8 bytes, just like textram

2017-12-12T23:31:27+00:00

The textram section must be aligned to 8 bytes to keep the linker happy. However, if that section contains no data, the declaration will set the __data_start__ value to that alignment, but the data section itself would start on a 4-byte alignment, potentially 4 bytes lower than the value indicated by __data_start__. This completely scrambles initialized memory as the startup code will copy the data segment to __data_start__, 4 bytes off of the actual data segment start. Fix this by forcing the data segment to also be aligned to 8 bytes. Signed-off-by: Keith Packard

altos: Allow building with newlib + avr stdio on ARM

2017-12-11T20:20:25+00:00

Redefines some stdio bits so that we can build with either pdclib or newlib + avr stdio. Signed-off-by: Keith Packard

altos/stmf0: Initialize UART RTS/CTS before turning it on

2017-06-28T06:37:49+00:00

If you try this after the UART is running, it won't work. Signed-off-by: Keith Packard

altos/stmf: Fix up serial port flow control configuration bits

2017-05-15T15:58:21+00:00

Compute whether any sw/hw flow control is in use. Compute whether hw flow control is in use as a separate value. These make the code a bit easier to follow. Signed-off-by: Keith Packard

altos: Make CDC ACM 'line coding' public

2017-05-05T05:10:36+00:00

This allows other systems to see what baud rate the host has requested. Signed-off-by: Keith Packard

altos/stmf0: Add code to use SoC flash as storage

2017-05-02T18:35:18+00:00

Signed-off-by: Keith Packard

altos/stmf0: Add support for HSI clocked applications

2017-04-28T07:05:01+00:00

And allow application space to be limited to less than available flash. Signed-off-by: Keith Packard

altos/stmf0: Fix HSI clock rate.

2017-04-28T07:04:33+00:00

It's 8MHz, not 16MHz Signed-off-by: Keith Packard

altos/stmf0: Make sure systick is off before programming

2017-04-28T07:04:14+00:00

Signed-off-by: Keith Packard

altos/stmf0: Compute serial baud rate registers at runtime

2017-04-28T07:02:54+00:00

This allows the system clock to vary at runtime, instead of requiring a fixed value. Signed-off-by: Keith Packard