boop/betty_TAE/MSP430/trunk/cc1100.c
2017-07-01 21:56:25 +02:00

158 lines
3.2 KiB
C

/*
cc1100.c
Copyright (C) 2009 <telekatz@gmx.de>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "cc1100.h"
#include "hardware.h"
#include <msp430.h>
//#include <signal.h>
//#include <iomacros.h>
//#include <mspgcc/util.h>
unsigned char WORsend;
unsigned char cc1100Addr;
const unsigned char conf[0x2f] = {
0x29 , 0x06 , 0x06 , 0x47 , 0xD3 , 0x91 , 0x3E , 0x1A ,
0x45 , cc1100_addr , cc1100_chan , 0x06 , 0x00 , 0x10 , 0x0B , 0xDA ,
0x8A , 0x75 , 0x13 , 0x22 , 0xC1 , 0x35 , 0x07 , 0x0C ,
0x18 , 0x16 , 0x6C , 0x43 , 0x40 , 0x91 , 0x46 , 0x50 ,
0x78 , 0x56 , 0x10 , 0xA9 , 0x0A , 0x00 , 0x11 , 0x41 ,
0x00 , 0x57 , 0x7F , 0x3F , 0x98 , 0x31 , 0x0B
};
void CC1100_Select(void) {
P1OUT &= ~CC_CS;
while (P1IN & CC_MISO);
}
void CC1100_DeSelect(void) {
P1OUT |= CC_CS;
}
void cc1100_init(void) {
unsigned char i;
P1OUT = (P1OUT & ~CC_MOSI) | (CC_CS | CC_SCLK);
P1DIR |= CC_CS;
P1OUT &= ~CC_CS;
delay(40);
P1OUT |= CC_CS;
delay(240);
CC1100_Select();
spi_rw(SRES);
while (P1IN & CC_MISO);
spi_rw(0x00 | BURST);
for (i=0; i < 0x2f; i++)
spi_rw(conf[i]);
CC1100_DeSelect();
cc1100Addr = conf[0x09];
WORsend=0;
}
unsigned char cc1100_write(unsigned char addr,unsigned char* dat, unsigned char lenght) {
unsigned char i;
unsigned char status;
CC1100_Select();
status = spi_rw(addr | WRITE);
for (i=0; i < lenght; i++)
spi_rw(dat[i]);
CC1100_DeSelect();
return(status);
}
unsigned char cc1100_write1(unsigned char addr,unsigned char dat) {
unsigned char status;
CC1100_Select();
status = spi_rw(addr | WRITE);
spi_rw(dat);
CC1100_DeSelect();
return(status);
}
unsigned char cc1100_read(unsigned char addr, unsigned char* dat, unsigned char lenght) {
unsigned char i;
unsigned char status;
CC1100_Select();
status = spi_rw(addr | READ);
for (i=0; i < lenght; i++)
dat[i]=spi_rw(0x00);
CC1100_DeSelect();
return(status);
}
unsigned char cc1100_read1(unsigned char addr) {
unsigned char r;
CC1100_Select();
r = spi_rw(addr | READ);
r=spi_rw(0x00);
CC1100_DeSelect();
return(r);
}
unsigned char cc1100_strobe(unsigned char cmd) {
unsigned char status;
CC1100_Select();
status = spi_rw(cmd);
CC1100_DeSelect();
return(status);
}
unsigned char spi_rw(unsigned char write) {
unsigned char z;
for (z= 8; z > 0; z--) {
P1OUT &= ~CC_SCLK; //SCK = 0;
if (write & 0x80)
P1OUT |= CC_MOSI; //MOSI1 = 1;
else
P1OUT &= ~CC_MOSI; //MOSI1 = 0;
P1OUT |= CC_SCLK; //SCK = 1;
write <<=1;
if (P1IN & CC_MISO)
write |= 0x01;
}
P1OUT &= ~CC_SCLK;
return(write);
}