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ATTiny support fr jscrane fork tested and working

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ATTiny support pulled in from https://github.com/jscrane/RF24
- SPI support for ATTiny is included with the library. Do NOT include
SPI.h with tiny.

Pin info etc can be found at:
http://programmablehardware.blogspot.ca/2013/09/rf24-with-attiny84.html

ATTiny 85 Example:
RF24 radio(4,3);    // CE: 4  CS: 3
This commit is contained in:
TMRh20
2014-04-09 10:53:47 -06:00
parent 8077f56a7f
commit 07eb9f8749
3 changed files with 97 additions and 103 deletions
Download Patch File Download Diff File Expand all files Collapse all files
RF24_config.h
+54 -64
View File
@@ -24,8 +24,15 @@
//#define MINIMAL
// Define _BV for non-Arduino platforms and for Arduino DUE
#if defined (ARDUINO)
#include <SPI.h>
#else
#include <stdint.h>
#include <stdio.h>
#include <string.h>
extern HardwareSPI SPI;
#define _BV(x) (1<<(x))
#endif
#undef SERIAL_DEBUG
@@ -33,6 +40,9 @@
#define IF_SERIAL_DEBUG(x) ({x;})
#else
#define IF_SERIAL_DEBUG(x)
#if defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny85__)
#define printf_P(...)
#endif
#endif
// Avoid spurious warnings
@@ -49,13 +59,13 @@
// Progmem is Arduino-specific
// Arduino DUE is arm and does not include avr/pgmspace
#if defined(ARDUINO) && ! defined(__arm__)
#include <avr/pgmspace.h>
#define PRIPSTR "%S"
#include <avr/pgmspace.h>
#define PRIPSTR "%S"
#else
#if ! defined(ARDUINO) // This doesn't work on Arduino DUE
typedef char const char;
typedef char const char;
#else // Fill in pgm_read_byte that is used, but missing from DUE
#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#endif
typedef uint16_t prog_uint16_t;
@@ -65,75 +75,55 @@ typedef char const char;
#define PROGMEM
#define pgm_read_word(p) (*(p))
#define PRIPSTR "%s"
#endif
// Define _BV for non-Arduino platforms and for Arduino DUE
#if ! defined(ARDUINO) || (defined(ARDUINO) && defined(__arm__))
#define _BV(x) (1<<(x))
#endif
// Stuff that is normally provided by Arduino
#if !defined (ARDUINO)
#include <stdint.h>
#include <stdio.h>
#include <string.h>
extern HardwareSPI SPI;
#define _BV(x) (1<<(x))
#else
#if !defined( __AVR_ATtiny85__ ) || defined( __AVR_ATtiny84__)
#include <SPI.h>
#else
#define ATTINY
#define SPI_CLOCK_DIV4 0x00
#define SPI_CLOCK_DIV16 0x01
#define SPI_CLOCK_DIV64 0x02
#define SPI_CLOCK_DIV128 0x03
#define SPI_CLOCK_DIV2 0x04
#define SPI_CLOCK_DIV8 0x05
#define SPI_CLOCK_DIV32 0x06
//#define SPI_CLOCK_DIV64 0x07
#define SPI_MODE0 0x00
#define SPI_MODE1 0x04
#define SPI_MODE2 0x08
#define SPI_MODE3 0x0C
#define SPI_MODE_MASK 0x0C // CPOL = bit 3, CPHA = bit 2 on SPCR
#define SPI_CLOCK_MASK 0x03 // SPR1 = bit 1, SPR0 = bit 0 on SPCR
#define SPI_2XCLOCK_MASK 0x01 // SPI2X = bit 0 on SPSR
class SPIClass {
public:
inline static byte transfer(byte _data);
// ATTiny support code is from https://github.com/jscrane/RF24
static void begin(); // Default
static void end();
#if defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__) || defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
#include <stdio.h>
#include <Arduino.h>
#include <avr/pgmspace.h>
static void setDataMode(byte);
static void setClockDivider(byte);
static void setBitOrder(byte);
};
#define SPI_CLOCK_DIV4 0x00
#define SPI_CLOCK_DIV16 0x01
#define SPI_CLOCK_DIV64 0x02
#define SPI_CLOCK_DIV128 0x03
#define SPI_CLOCK_DIV2 0x04
#define SPI_CLOCK_DIV8 0x05
#define SPI_CLOCK_DIV32 0x06
//#define SPI_CLOCK_DIV64 0x07
extern SPIClass SPI;
#define SPI_MODE0 0x00
#define SPI_MODE1 0x04
#define SPI_MODE2 0x08
#define SPI_MODE3 0x0C
byte SPIClass::transfer(byte _data){
#define SPI_MODE_MASK 0x0C // CPOL = bit 3, CPHA = bit 2 on SPCR
#define SPI_CLOCK_MASK 0x03 // SPR1 = bit 1, SPR0 = bit 0 on SPCR
#define SPI_2XCLOCK_MASK 0x01 // SPI2X = bit 0 on SPSR
USIDR = _data;
USISR = _BV(USIOIF);
while((USISR & _BV(USIOIF)) == 0){
USICR = _BV(USIWM0) | _BV(USICS1) | _BV(USICLK) | _BV(USITC);
}
return USIDR;
}
#endif //ATTINY
#endif //Defined Arduino
class SPIClass {
public:
static byte transfer(byte _data);
// SPI Configuration methods
inline static void attachInterrupt();
inline static void detachInterrupt(); // Default
static void begin(); // Default
static void end();
static void setBitOrder(uint8_t);
static void setDataMode(uint8_t);
static void setClockDivider(uint8_t);
};
extern SPIClass SPI;
#endif //ATTiny
#endif // __RF24_CONFIG_H__