#include "nrf.h"
#include "spi.h"
-//Weird HOPE badge wiring. This was a fuckup.
-//BIT0 should be SS, but in point of fact it is IRQ.
-//BIT4 is actually SS, BIT5 is CE.
-#define SS BIT4
-#define CE BIT5;
-
-#define RADIOACTIVE P5OUT|=CE
-#define RADIOPASSIVE P5OUT&=~CE
+#define RADIOACTIVE SETCE
+#define RADIOPASSIVE CLRCE
//! Set up the pins for NRF mode.
void nrfsetup(){
- P5OUT|=SS;
+ SETSS;
P5DIR&=~MISO;
- P5DIR|=MOSI+SCK+SS+CE;
-
+ P5DIR|=MOSI+SCK;
+ DIRSS;
+ DIRCE;
//Begin a new transaction.
- P5OUT&=~SS;
- P5OUT|=SS;
+ CLRSS;
+ SETSS;
}
//! Read and write an NRF byte.
//! Writes a register
u8 nrf_regwrite(u8 reg, const u8 *buf, int len){
- P5OUT&=~SS;
+ CLRSS;
reg=nrftrans8(reg);
while(len--)
nrftrans8(*buf++);
- P5OUT|=SS;
+ SETSS;
return reg;//status
}
//! Reads a register
u8 nrf_regread(u8 reg, u8 *buf, int len){
- P5OUT&=~SS;
+ CLRSS;
reg=nrftrans8(reg);
while(len--)
*buf++=nrftrans8(0);
- P5OUT|=SS;
+ SETSS;
return reg;//status
}
//Drop CE to passify radio.
RADIOPASSIVE;
//Raise !SS to end transaction, just in case we forgot.
- P5OUT|=SS;
+ SETSS;
nrfsetup();
switch(verb){
//PEEK and POKE might come later.
case READ:
case WRITE:
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
for(i=0;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case PEEK://Grab NRF Register
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
nrftrans8(NRF_R_REGISTER | cmddata[0]); //000A AAAA
for(i=1;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case POKE://Poke NRF Register
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
nrftrans8(NRF_W_REGISTER | cmddata[0]); //001A AAAA
for(i=1;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case SETUP:
case NRF_RX:
RADIOPASSIVE;
//Get the packet.
- P5OUT&=~SS;
+ CLRSS;
nrftrans8(NRF_R_RX_PAYLOAD);
for(i=0;i<32;i++)
cmddata[i]=nrftrans8(0xde);
- P5OUT|=SS;
+ SETSS;
//no break
txdata(app,verb,32);
break;
case NRF_RX_FLUSH:
//Flush the buffer.
- P5OUT&=~SS;
+ CLRSS;
nrftrans8(NRF_FLUSH_RX);
- P5OUT|=SS;
+ SETSS;
//Return the packet.
txdata(app,verb,32);
}
- P5OUT|=SS;//End session
+ SETSS;//End session
RADIOACTIVE;
}
#include <iomacros.h>
//! Receive a byte.
-unsigned char serial_rx(){
+unsigned char serial0_rx(){
char c;
while(!(IFG2&UCA0RXIFG));//wait for a byte
}
//! Transmit a byte.
-void serial_tx(unsigned char x){
+void serial0_tx(unsigned char x){
while ((IFG2 & UCA0TXIFG) == 0); //loop until buffer is free
UCA0TXBUF = x; /* send the character */
while(!(IFG2 & UCA0TXIFG));
}
//! Set the baud rate.
-void setbaud(unsigned char rate){
+void setbaud0(unsigned char rate){
//Table 15-4, page 481 of 2xx Family Guide
switch(rate){
//No longer works for Hope badge.
#define SETSS P5OUT|=BIT0
#define CLRSS P5OUT&=~BIT0
-
-
+#define DIRSS P5DIR|=BIT0;
+
+//BIT5 is Chip Enable. Need to document this
+//#define RADIOACTIVE P5OUT|=BIT5
+//#define RADIOPASSIVE P5OUT&=~BIT5
+#define SETCE P5OUT|=BIT5
+#define CLRCE P5OUT&=~BIT5
+#define DIRCE P5DIR|=BIT5
--- /dev/null
+/*! \file nhbadge.h
+ \author Travis Goodspeed
+ \brief Port descriptions for the Next Hope Badge.
+*/
+
+
+//LED on P1.0
+#define PLEDOUT P1OUT
+#define PLEDDIR P1DIR
+#define PLEDPIN BIT0
+
+
+//No longer works for Hope badge.
+#define SETSS P5OUT|=BIT4
+#define CLRSS P5OUT&=~BIT4
+#define DIRSS P5DIR|=BIT4;
+
+//BIT5 is Chip Enable
+//#define RADIOACTIVE P5OUT|=BIT5
+//#define RADIOPASSIVE P5OUT&=~BIT5
+#define SETCE P5OUT|=BIT5
+#define CLRCE P5OUT&=~BIT5
+#define DIRCE P5DIR|=BIT5