Skip to content
GitLab
Menu
Projects
Groups
Snippets
Loading...
Help
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
Menu
Open sidebar
ruanhaishen
Nodemcu Firmware
Commits
3430e5f8
Commit
3430e5f8
authored
Jun 20, 2015
by
vowstar
Browse files
Add __attribute__((optimize("O2"))) to ws2812 module.
parent
cda7992c
Changes
1
Hide whitespace changes
Inline
Side-by-side
app/modules/ws2812.c
View file @
3430e5f8
...
...
@@ -16,13 +16,13 @@
// -- This WS2812 code must be compiled with -O2 to get the timing right. Read this:
// -- http://wp.josh.com/2014/05/13/ws2812-neopixels-are-not-so-finicky-once-you-get-to-know-them/
// -- The ICACHE_FLASH_ATTR is there to trick the compiler and get the very first pulse width correct.
static
void
ICACHE_FLASH_ATTR
send_ws_0
(
uint8_t
gpio
)
{
static
void
ICACHE_FLASH_ATTR
__attribute__
((
optimize
(
"O2"
)))
send_ws_0
(
uint8_t
gpio
){
uint8_t
i
;
i
=
4
;
while
(
i
--
)
GPIO_REG_WRITE
(
GPIO_OUT_W1TS_ADDRESS
,
1
<<
gpio
);
i
=
9
;
while
(
i
--
)
GPIO_REG_WRITE
(
GPIO_OUT_W1TC_ADDRESS
,
1
<<
gpio
);
}
static
void
ICACHE_FLASH_ATTR
send_ws_1
(
uint8_t
gpio
)
{
static
void
ICACHE_FLASH_ATTR
__attribute__
((
optimize
(
"O2"
)))
send_ws_1
(
uint8_t
gpio
){
uint8_t
i
;
i
=
8
;
while
(
i
--
)
GPIO_REG_WRITE
(
GPIO_OUT_W1TS_ADDRESS
,
1
<<
gpio
);
i
=
6
;
while
(
i
--
)
GPIO_REG_WRITE
(
GPIO_OUT_W1TC_ADDRESS
,
1
<<
gpio
);
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
.
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment