static void chb_frame_read()
{
U8 i, len, data;
CHB_ENTER_CRIT();
CHB_SPI_ENABLE();
/*Send frame read command and read the length.*/
chb_xfer_byte(CHB_SPI_CMD_FR);
len = chb_xfer_byte(0);
/*Check for correct frame length.*/
// TODO: CHECK FOR THE CRC VALID BIT TO QUALIFY THE FRAME
// check the length of the frame to make sure the incoming frame
// doesn't overflow the buffer
if ((len >= CHB_MIN_FRAME_LENGTH) && (len <= CHB_MAX_FRAME_LENGTH))
{
chb_buf_write(len);
for (i=0; i<len; i++)
{
data = chb_xfer_byte(0);
chb_buf_write(data);
}
}
CHB_SPI_DISABLE();
CHB_LEAVE_CRIT();
}
static void chb_frame_read()
{
U8 i, len, data;
CHB_ENTER_CRIT();
RadioCS(TRUE);
/*Send frame read command and read the length.*/
SPID_write(CHB_SPI_CMD_FR);
len = SPID_write(0);
/*Check for correct frame length.*/
if ((len >= CHB_MIN_FRAME_LENGTH) && (len <= CHB_MAX_FRAME_LENGTH))
{
// check to see if there is room to write the frame in the buffer. if not, then drop it
if (len < (CHB_BUF_SZ - chb_buf_get_len()))
{
chb_buf_write(len);
for (i=0; i<len; i++)
{
data = SPID_write(0);
chb_buf_write(data);
}
//generate message received event here
//EVSYS.STROBE = 0x04; //generate event on channel 3
//generate interrupt on port E by toggling pin 2
//PORTE.OUTSET = PIN2_bm;
//PORTE.OUTCLR = PIN2_bm;
}
else
{
// we've overflowed the buffer. toss the data and do some housekeeping
pcb_t *pcb = chb_get_pcb();
//char buf[50];
// read out the data and throw it away
for (i=0; i<len; i++)
{
data = SPID_write(0);
}
// Increment the overflow stat
pcb->overflow++;
// grab the message from flash & print it out
//strcpy_P(buf, chb_err_overflow);
//printf(buf);
}
}
RadioCS(FALSE);
CHB_LEAVE_CRIT();
}
static void chb_frame_read()
{
U8 i, len, data;
CHB_ENTER_CRIT();
CHB_SPI_ENABLE();
/*Send frame read command and read the length.*/
chb_xfer_byte(CHB_SPI_CMD_FR);
len = chb_xfer_byte(0);
// check the length of the frame to make sure its within the correct size limits
if ((len >= CHB_MIN_FRAME_LENGTH) && (len <= CHB_MAX_FRAME_LENGTH))
{
// check to see if there is room to write the frame in the buffer. if not, then drop it
if (len < (CHB_BUF_SZ - chb_buf_get_len()))
{
chb_buf_write(len);
for (i=0; i<len; i++)
{
data = chb_xfer_byte(0);
chb_buf_write(data);
}
}
else
{
// this frame will overflow the buffer. toss the data and do some housekeeping
pcb_t *pcb = chb_get_pcb();
char buf[50];
// read out the data and throw it away
for (i=0; i<len; i++)
{
data = chb_xfer_byte(0);
}
// Increment the overflow stat, and print a message.
pcb->overflow++;
// grab the message from flash & print it out
strcpy_P(buf, chb_err_overflow);
Serial.print(buf);
}
}
CHB_SPI_DISABLE();
CHB_LEAVE_CRIT();
}
static void chb_frame_read()
{
U8 i, len, data;
// CHB_ENTER_CRIT();
CHB_SPI_ENABLE();
/*Send frame read command and read the length.*/
chb_xfer_byte(CHB_SPI_CMD_FR);
len = chb_xfer_byte(0);
/*Check for correct frame length.*/
if ((len >= CHB_MIN_FRAME_LENGTH) && (len <= CHB_MAX_FRAME_LENGTH))
{
// check to see if there is room to write the frame in the buffer. if not, then drop it
if (len < (CFG_CHIBI_BUFFERSIZE - chb_buf_get_len()))
{
chb_buf_write(len);
for (i=0; i<len; i++)
{
data = chb_xfer_byte(0);
chb_buf_write(data);
}
}
else
{
// we've overflowed the buffer. toss the data and do some housekeeping
chb_pcb_t *pcb = chb_get_pcb();
// read out the data and throw it away
for (i=0; i<len; i++)
{
data = chb_xfer_byte(0);
}
// Increment the overflow stat
pcb->overflow++;
// print the error message
printf(chb_err_overflow);
}
}
CHB_SPI_DISABLE();
CHB_LEAVE_CRIT();
}
