bmptk::hardware::spi_bus_sclk_mosi_miso< sclk_extern, mosi_extern, miso_extern, frequency > Struct Template Reference

bit-banged spi bus More...

#include <spi.h>

Public Types
enum	{ type = type_spi_bus }
	identify this type as a spi bus
typedef bmptk::hardware::pin_out_from < sclk_extern >	sclk
	the sck pin
typedef bmptk::hardware::pin_out_from < mosi_extern >	mosi
	the mosi pin
typedef bmptk::hardware::pin_in_from < miso_extern >	miso
	the miso pin

Static Public Member Functions
static void	wait ()
	wait at least a half-period since the previous call
static void	init ()
	initialize the pins

Detailed Description

template<class sclk_extern, class mosi_extern, class miso_extern, unsigned int frequency = 1 * bmptk::MHz>
struct bmptk::hardware::spi_bus_sclk_mosi_miso< sclk_extern, mosi_extern, miso_extern, frequency >

bit-banged spi bus

This class represents a simple bit-banged (software-only) spi bus master.

The SS (slave select) line is not part of this bus, it is part of a spi channel (specific to one chip on the spi bus).

The last parameter is the (maximum) frequency of the clock. For higher frequency arguments, the actual frequency will be limited by the target's bmptk::current_time() calls. On an LPC1114 at 12 MHz, the real maximum frequency is ~ 50 kHz.

Definition at line 52 of file spi.h.

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The documentation for this struct was generated from the following file:

• hardware/spi.h