aboutsummaryrefslogtreecommitdiffstats
path: root/source/lang/api/pwmwrite.rst
diff options
context:
space:
mode:
authorMarti Bolivar <mbolivar@leaflabs.com>2011-03-30 00:55:51 -0400
committerMarti Bolivar <mbolivar@leaflabs.com>2011-03-30 07:19:13 -0400
commit1e42c8777e04e100d2b1589ae71c6e76a1646eb9 (patch)
treed0de541e0f19b9690092a9044a45f5f03d4e642d /source/lang/api/pwmwrite.rst
parentd7d69bf0aa45ef7f9e5b06a30f914c4b7252821d (diff)
downloadlibrambutan-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.rst2
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.