aboutsummaryrefslogtreecommitdiffstats
path: root/docs/internals_gpio_control.md
diff options
context:
space:
mode:
authorJohSchneider <JohSchneider@googlemail.com>2020-04-29 11:04:29 +0000
committerGitHub <noreply@github.com>2020-04-29 04:04:29 -0700
commitd26a14c1699e72ca3e0ae3d4e9871b620a833080 (patch)
tree9731a3b6fc0e9de396cc99c00fde6a2b21e2dce9 /docs/internals_gpio_control.md
parent195be50745e6f476bcef17085fde0cd32760a46b (diff)
downloadfirmware-d26a14c1699e72ca3e0ae3d4e9871b620a833080.tar.gz
firmware-d26a14c1699e72ca3e0ae3d4e9871b620a833080.tar.bz2
firmware-d26a14c1699e72ca3e0ae3d4e9871b620a833080.zip
add 'togglePin' convenience function (#8734)
* add 'togglePin' conveniance function for AVR and chibios * drop outmost parantheses Co-Authored-By: Konstantin Đorđević <vomindoraan@gmail.com> * toggle pin on avrs toggle a pin configured as output by writing the corresponding bit to the PIN register Co-Authored-By: Takeshi ISHII <2170248+mtei@users.noreply.github.com> * togglepin: add documentation for newly added function * Update docs/internals_gpio_control.md Co-Authored-By: Konstantin Đorđević <vomindoraan@gmail.com> * on AVR: use PORTD to toggle the output ... since not all MCUs support toggling through writing to PIN Co-Authored-By: Ryan <fauxpark@gmail.com> Co-authored-by: Johannes <you@example.com> Co-authored-by: Konstantin Đorđević <vomindoraan@gmail.com> Co-authored-by: Takeshi ISHII <2170248+mtei@users.noreply.github.com> Co-authored-by: Ryan <fauxpark@gmail.com>
Diffstat (limited to 'docs/internals_gpio_control.md')
-rw-r--r--docs/internals_gpio_control.md1
1 files changed, 1 insertions, 0 deletions
diff --git a/docs/internals_gpio_control.md b/docs/internals_gpio_control.md
index 74ac09035..48eaf8875 100644
--- a/docs/internals_gpio_control.md
+++ b/docs/internals_gpio_control.md
@@ -16,6 +16,7 @@ The following functions can provide basic control of GPIOs and are found in `qua
| `writePinLow(pin)` | Set pin level as low, assuming it is an output | `PORTB &= ~(1<<2)` | `palClearLine(pin)` |
| `writePin(pin, level)` | Set pin level, assuming it is an output | `(level) ? PORTB \|= (1<<2) : PORTB &= ~(1<<2)` | `(level) ? palSetLine(pin) : palClearLine(pin)` |
| `readPin(pin)` | Returns the level of the pin | `_SFR_IO8(pin >> 4) & _BV(pin & 0xF)` | `palReadLine(pin)` |
+| `togglePin(pin)` | Invert pin level, assuming it is an output | `PORTB ^= (1<<2)` | `palToggleLine(pin)` |
## Advanced Settings :id=advanced-settings