git.gag.com Git - debian/cc1111/blob - device/lib/pic16/libio/i2c/i2creads.c

   1
   2 #include <pic18fregs.h>
   3
   4 #include <i2c.h>
   5
   6
   7 char i2c_readstr(_I2CPARAM_SPEC unsigned char *ptr, unsigned char len)
   8 {
   9   unsigned char count=0;
  10
  11   while( len-- ) {
  12     *ptr++ = i2c_readchar();
  13
  14     while(SSPCON2bits.RCEN) {
  15       if(PIR2bits.BCLIF)return (-1);
  16       count++;
  17
  18       if(len) {
  19         I2C_ACK();
  20         while(SSPCON2bits.ACKEN);
  21       }
  22     }
  23   }
  24
  25   return count;
  26 }