P5DIR|=MOSI+SCK+SS;
- /*
//Begin a new transaction.
P5OUT&=~SS;
P5OUT|=SS;
- */
}
-
//! Read and write an NRF byte.
-unsigned char nrftrans8(unsigned char byte){
+u8 nrftrans8(u8 byte){
register unsigned int bit;
//This function came from the NRF Wikipedia article.
//Minor alterations.
}
+//! Writes a register
+u8 nrf_regwrite(u8 reg, const u8 *buf, int len){
+ P5OUT&=~SS;
+
+ reg=nrftrans8(reg);
+ while(len--)
+ nrftrans8(*buf++);
+
+ P5OUT|=SS;
+}
+//! Reads a register
+u8 nrf_regread(u8 reg, u8 *buf, int len){
+ P5OUT&=~SS;
+
+ reg=nrftrans8(reg);
+ while(len--)
+ *buf++=nrftrans8(0);
+
+ P5OUT|=SS;
+}
+
//! Handles a Nordic RF command.
void nrfhandle(unsigned char app,
unsigned char verb,
switch(verb){
//PEEK and POKE might come later.
- case READ:
+ case READ:
case WRITE:
P5OUT&=~SS; //Drop !SS to begin transaction.
for(i=0;i<len;i++)
case PEEK://Grab NRF Register
P5OUT&=~SS; //Drop !SS to begin transaction.
- nrftrans8(0|(NRF_R_REGISTER & cmddata[0])); //000A AAAA
+ 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.
case POKE://Poke NRF Register
P5OUT&=~SS; //Drop !SS to begin transaction.
- nrftrans8(0|(NRF_W_REGISTER & cmddata[0])); //001A AAAA
+ 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.