SPI refactor.

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.

1 files changed, 10 insertions, 0 deletions

diff --git a/wirish/boards/maple_RET6.h b/wirish/boards/maple_RET6.h
index 97e609d..4195857 100644
--- a/wirish/boards/maple_RET6.h
+++ b/wirish/boards/maple_RET6.h
@@ -55,6 +55,16 @@
 #define BOARD_USART3_TX_PIN     29
 #define BOARD_USART3_RX_PIN     30
 
+#define BOARD_NR_SPI            2
+#define BOARD_SPI1_NSS_PIN      10
+#define BOARD_SPI1_MOSI_PIN     11
+#define BOARD_SPI1_MISO_PIN     12
+#define BOARD_SPI1_SCK_PIN      13
+#define BOARD_SPI2_NSS_PIN      31
+#define BOARD_SPI2_MOSI_PIN     34
+#define BOARD_SPI2_MISO_PIN     33
+#define BOARD_SPI2_SCK_PIN      32
+
 #define BOARD_NR_GPIO_PINS      44
 #define BOARD_NR_PWM_PINS       16
 #define BOARD_NR_ADC_PINS       15