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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
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RF24.cpp
+36 -35
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@@ -380,7 +380,7 @@ uint8_t RF24::getPayloadSize(void)
/****************************************************************************/
#if !defined (MINIMAL)
static const char rf24_datarate_e_str_0[] PROGMEM = "1MBPS";
static const char rf24_datarate_e_str_1[] PROGMEM = "2MBPS";
@@ -414,7 +414,7 @@ static const char * const rf24_pa_dbm_e_str_P[] PROGMEM = {
rf24_pa_dbm_e_str_2,
rf24_pa_dbm_e_str_3,
};
#if !defined (MINIMAL)
void RF24::printDetails(void)
{
print_status(get_status());
@@ -1210,50 +1210,51 @@ void RF24::setRetries(uint8_t delay, uint8_t count)
}
//ATTiny support code pulled in from https://github.com/jscrane/RF24
#if defined (ATTINY)
#include "pins_arduino.h"
#if defined( __AVR_ATtiny85__ )
const static uint8_t _CS = PB4;
const static uint8_t _MOSI = PB1;
const static uint8_t _MISO = PB0;
const static uint8_t _SCK = PB2;
#if defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
// see http://gammon.com.au/spi
# define DI 0 // D0, pin 5 Data In
# define DO 1 // D1, pin 6 Data Out (this is *not* MOSI)
# define USCK 2 // D2, pin 7 Universal Serial Interface clock
# define SS 3 // D3, pin 2 Slave Select
#elif defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
// these depend on the core used (check pins_arduino.h)
// this is for jeelabs' one (based on google-code core)
# define DI 4 // PA6
# define DO 5 // PA5
# define USCK 6 // PA4
# define SS 3 // PA7
#endif
#if defined( __AVR_ATtiny84__ )
const static uint8_t _CS = 3;
const static uint8_t _MOSI = 5;
const static uint8_t _MISO = 4;
const static uint8_t _SCK = 6;
#endif
SPIClass SPI;
#if defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__) || defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
void SPIClass::begin() {
pinMode(_SCK, OUTPUT);
pinMode(_MOSI, OUTPUT);
pinMode(_MISO,INPUT);
digitalWrite(SS, HIGH);
pinMode(USCK, OUTPUT);
pinMode(DO, OUTPUT);
pinMode(SS, OUTPUT);
pinMode(DI, INPUT);
USICR = _BV(USIWM0);
digitalWrite(_MISO,HIGH);
digitalWrite(_SCK, LOW);
digitalWrite(_MOSI, LOW);
}
void SPIClass::end() {
byte SPIClass::transfer(byte b) {
USIDR = b;
USISR = _BV(USIOIF);
do
USICR = _BV(USIWM0) | _BV(USICS1) | _BV(USICLK) | _BV(USITC);
while ((USISR & _BV(USIOIF)) == 0);
return USIDR;
pinMode(_SCK, INPUT);
pinMode(_MOSI, INPUT);
pinMode(_MISO,INPUT);
}
void SPIClass::setDataMode(byte mode){}
void SPIClass::setClockDivider(byte rate){}
void SPIClass::end() {}
void SPIClass::setDataMode(uint8_t mode){}
void SPIClass::setBitOrder(uint8_t bitOrder){}
void SPIClass::setClockDivider(uint8_t rate){}
#endif