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| author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-03-30 00:55:51 -0400 |
|---|---|---|
| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-03-30 07:19:13 -0400 |
| commit | 1e42c8777e04e100d2b1589ae71c6e76a1646eb9 (patch) | |
| tree | d0de541e0f19b9690092a9044a45f5f03d4e642d /source/lang/api/pwmwrite.rst | |
| parent | d7d69bf0aa45ef7f9e5b06a30f914c4b7252821d (diff) | |
| download | librambutan-1e42c8777e04e100d2b1589ae71c6e76a1646eb9.tar.gz librambutan-1e42c8777e04e100d2b1589ae71c6e76a1646eb9.zip | |
Board-specific values; corresponding QA test generalizations.
Various board-specific #defines and arrays of pins added.
For the changelog (some of this information predates this commit):
* wirish/boards.h now declares the following arrays of pin numbers:
* boardPWMPins - PWM-capable pins
* boardADCPins - ADC-capable pins
* boardUsedPins - pins already in use, e.g. BOARD_BUTTON_PIN
It also declares a bool boardUsesPin(uint8 pin) function for
convenient testing of whether a pin is in use.
* wirish/boards/*.h now define:
* BOARD_USART1_TX_PIN
* BOARD_USART1_RX_PIN
* BOARD_USART2_TX_PIN
* BOARD_USART2_RX_PIN
* BOARD_USART3_TX_PIN
* BOARD_USART3_RX_PIN
* BOARD_NR_GPIO_PINS (renamed from NR_GPIO_PINS)
* BOARD_NR_USARTS (renamed from NR_USARTS)
* BOARD_NR_PWM_PINS
* BOARD_NR_ADC_PINS
* BOARD_NR_USED_PINS
* wirish/boards/maple_native.h now defines:
* BOARD_UART4_TX_PIN
* BOARD_UART4_RX_PIN
* BOARD_UART5_TX_PIN
* BOARD_UART5_RX_PIN
(Unfortunately, wirish/boards/maple_RET6.h cannot, since at least
one of the UART4/UART5 pins are used already; this will require layout
changes for a wide-release Maple form factor RET6 board).
* wirish/boards/*.cpp all include the corresponding array definitions.
They all live in flash by default, thanks to the new __FLASH__ macro
in wirish/wirish_types.h, which is a synonym for the existing __attr_flash
#define in libmaple/libmaple_types.h.
The documentation was updated to include this information. It also
gained various FIXME/TODO comments related to its generalization
across boards.
The quality assurance-related examples (examples/qa-slave-shield.cpp
and examples/test-session.cpp) now make heavy use of board-specific
values to ensure portability.
Diffstat (limited to 'source/lang/api/pwmwrite.rst')
| -rw-r--r-- | source/lang/api/pwmwrite.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/source/lang/api/pwmwrite.rst b/source/lang/api/pwmwrite.rst index 9d50077..cea602b 100644 --- a/source/lang/api/pwmwrite.rst +++ b/source/lang/api/pwmwrite.rst @@ -11,6 +11,8 @@ pwmWrite(), the pin will output a steady square wave with the given duty cycle. You can change the duty cycle later by calling pwmWrite() again with the same pin and a different duty. +.. FIXME board-specific information + On the Maple, the pins which support PWM are: 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 14, 24, 27, and 28. |