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7 Commits

Author SHA1 Message Date
Damien George
056abbcf31 stmhal: Fix unused variables when HW_CLK_LAST_FREQ not defined. 2015-11-23 23:52:09 +00:00
T S
86aa16bea6 stmhal: Implement delayed RTC initialization with LSI fallback. 
If RTC is already running at boot then it's left alone.  Otherwise, RTC is
started at boot but startup function returns straight away.  RTC startup
is then finished the first time it is used.  Fallback to LSI if LSE fails
to start in a certain time.

Also included:
 MICROPY_HW_CLK_LAST_FREQ
        hold pyb.freq() parameters in RTC backup reg
 MICROPY_HW_RTC_USE_US
        option to present datetime sub-seconds in microseconds
 MICROPY_HW_RTC_USE_CALOUT
        option to enable RTC calibration output

CLK_LAST_FREQ and RTC_USE_CALOUT are enabled for PYBv1.0.
 2015-11-23 23:23:07 +00:00
Paul Sokolovsky
16d42368a6 stmhal/modmachine: Initial attempt to add I2C & SPI classes. 
In new hardware API, these classes implement master modes of interfaces,
and "mode" parameter is not accepted. Trying to implement new HW API
in terms of older pyb module leaves variuos corner cases:

In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on
interpretation), while in old API, it means "I2C #1, with no settings
changes".

For I2C class, it's easy to make mode optional, because that's last
positional param, but for SPI, there's "baudrate" after it (which
is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
 2015-11-14 16:14:08 +02:00
Damien George
731f359292 all: Add py/mphal.h and use it in all ports. 
py/mphal.h contains declarations for generic mp_hal_XXX functions, such
as stdio and delay/ticks, which ports should provide definitions for.  A
port will also provide mphalport.h with further HAL declarations.
 2015-10-31 19:14:30 +03:00
Dave Hylands
b83d0b35e9 stmhal: Add define for UNIQUE_ID address (differs per MCU) 2015-10-30 12:53:14 +00:00
Damien George
2f96b1982a stmhal: Bring Pin class close to new machine module specification. 
Looks like we can use the same Pin class for legacy pyb module and new
machine module.
 2015-10-19 22:50:59 +01:00
Dave Hylands
504420c51d stmhal: Early version of machine module for stmhal. 2015-10-19 21:12:42 +01:00