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Ugh.
Fix BOARD_NR_ADC_PINS and boardADCPins on Maple, Maple Mini, and Maple
RET6 Edition:
Maple and Maple RET6 Ed. don't have ADC on pin 3. Seems likely that
the error was due to AIN being missing on the silkscreen. They also
have ADC on pin 13. This is not really true due to the voltage drop
across the built-in LED.
Maple Mini really should not include BOARD_LED_PIN among its ADC pins,
since it's not broken out to a header.
Fix BOARD_NR_PWM_PINS and boardPWMPins on Maple and RET6 Ed:
Both boards falsely include pin 25 as a PWM pin. Maple RET6 Edition
also lacks some PWM pins.
Fix BOARD_NR_SPI on Maple RET6 Edition:
SPI3 uses PB4, which is unusable since it's tied to NRST. This means
that SPI3 is not available on the RET6 edition. Decreasing
BOARD_NR_SPI to 2 to accomodate this. Leave the BOARD_SPI3_*_PIN
defines intact so as not to further clutter the rest of the library
with RET6-specific wrinkles.
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Still a polling driver, but the libmaple proper interface exposes
enough that users enable the various interrupts and define their own
IRQ handlers if they feel like it.
Wirish HardwareSPI interface was largely redone; it's more like the
Arduino implementation now, although there are some differences when I
didn't like their API. The old methods are still there, but are
deprecated and slated for deletion in 0.1.0.
New board-specific values: BOARD_NR_SPI, BOARD_SPIx_NSS_PIN,
BOARD_SPIx_MOSI_PIN, BOARD_SPIx_MISO_PIN, and BOARD_SPIx_SCK_PIN, for
x from 1 to BOARD_NR_SPI.
Documentation was updated appropriately.
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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.
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/wirish/boards/ contains xxx.h and xxx.cpp (for xxx=maple,
maple_native, maple_mini, maple_RET6). The headers contain the
board-specific #defines that used to live in boards.h (except
BOARD_INIT, which was removed). The CPP files contain the PIN_MAP
definitions that used to live in boards.cpp, and a proper boardInit()
function to replace the old BOARD_INIT macro. This will make it
easier to add new boards in the future.
struct PinMapping was renamed struct stm32_pin_info, and was moved
into a new wirish_types.h. Its external interrupt field was moved
into struct gpio_dev, which saves memory by storing an afio_exti_port
per port, rather than one per pin. Also rearranged the stm32_pin_info
fields to improve packing. Maple's PIN_MAP is now down to below 500
bytes.
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