This board is sold by several vendors on AliExpress, Amazon and ebay.
It does not have name, but since it comes in the same form-factor and
color as the Bluepill line of boards, I think it makes sense to use that
name.
Flashing is a bit cumbersome as I always had to press the reset button
in time when OpenOCD tries to connect to the CPU.
There is no dedicated reset pin exposed on the board.
Deep-sleep was based on using rx pin as external interrupt to be able to
wake up from stop mode. If rx pin cannot be used as interrupt or user
does not need to wake up from stop from the CAN, an option is now
present. If en_deep_sleep_wake_up is set to false, setting the device to
sleep simply unblock stop mode. Otherwise the behavior is unchanged.
The unittest for flashpage only checks the inline flashpage_ functions
with the assumption that the flashpage layout is uniform. This commit
undefines the macro guarding those functions to force them to be
included even when the flashpage peripheral defines own implementations.
In case a non-gpio EXTI (>= 16) is pending, the isr_exti() used to clear
the flag and try to call a callback, which was out-of-bouds, thus
generating a hard fault.
This fixes it by masking the pending_isr variables with 0xFFFF.
- Use negative errno as error codes, rather than home-grown enums
- Update the home-grown enum with negative errno codes for backward
compatibility and mark it deprecated
- Update API doc to use negative errno codes
- Fix various style issues in Doxygen doc
- Use `@retval` to document specific return values instead of abusing
`@return` for this
- Align parameters to proper indent level
The ram size is exposed as macro value and available for use in code.
For the stm32 it has a value in kilobytes suffixed with 'k'. This is
less than optimal for usage in arithmetic. This commit modifies the
value to bytes so that it can be used in preprocessor magic
R0.14a (December 05, 2020)
Limited number of recursive calls in f_findnext().
Fixed old floppy disks formatted with MS-DOS 2.x and 3.x cannot be mounted.
Fixed some compiler warnings.
- http://elm-chan.org/fsw/ff/updates.txt
CS and MODE are a bit too generic macros and may conflict with headers
defined by the CPU, like in the QN908x case.
This patch renames them to BUS_CS and BUS_MODE to keep it consistent
with the other BUS names.
