This commit modifies how the Makefile selects dirs for the unit-test target
Instead of assuming all dirs have tests and manually excluding those that don't,
it now recursively finds all dirs containing files with names matching "*_test.go"
A manual exclusion list is maintained for operational use.
Currently, easystepper driver supports only '4-step mode' (12-23-34-41) when energizing the coils
This does not work with all motors & drivers (e.g. 28BJY-48 & ULN2003)
This commit adds support for 8-step mode (1-12-2-23-3-34-4-41)
Note: this commit breaks backward source compatibility for the factory/constructor functions.
The instances of SPI interfaces SPI0, SPI1, ... are
pointers to SPI types on rp2040 machines, rather plain
values like other machines.
This needs restructuring the sdcard API to take a pointer
to the SPI interface rather the SPI type itself.
Removed waitserial() since it needs modem control lines
not available on most boards
See https://github.com/tinygo-org/drivers/pull/401 for details.
I haven't converted it to autogenerated assembly because AVR is
different from many other architectures (8-bit, among others) and it
didn't seem worth the effort as many chips run at 16MHz anyway.
I ran the two AVR smoke tests for the ws2812 driver and the resulting
binary is exactly the same.
This is better for various reasons:
* I don't like the inline assembly implementation in TinyGo. It kinda
works, but it's hard to use correctly.
* The Go version had a subtle bug: the i and value variables weren't
marked as modified. The compiler produced correct code by chance. In
GCC-style inline assembly, it's possible to correctly mark it as an
input+output operand.
* LLVM 14 has some changes to inline assembly that change how memory
operands can be created. Instead of supporting that, I'd like to get
rid of memory operands entirely (and possibly inline assembly in
general).
I did some light testing: the ARM assembly changed a bit but not in any
way that should have a practical effect, and the RISC-V assembly didn't
change at all.
The source code has been ported from C. It seems, the different
semantics of switch-case in Go has not been ported properly.
To fix this, remove 'break' statements and introduce 'fallthrough' where
necessary.
Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
deadprogram
Lucas Bremgartner
sago35
Lucas Matte
Alexandre Jomin
Daniel Esteban
Arsen6331
jmacwhyte
Kenneth Bell
Kamil Wcisło
Neil Davis
tgilkerson
Olaf Flebbe
Yurii Soldak
Daniel Esteban
Michael Meister
Ayke van Laethem
Kuiki
Oliver Stäbler
Patricio Whittingslow