#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/spi/spidev.h>
+#include <string.h>
#include "rp_spi.h" /*struct rpi_in */
.bits_per_word = bits,
};
+ memset(&in,0,sizeof(in));
+
ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
/*vypisovani prichozich dat */
- /*/
+
if (ret < 1)
pabort("can't send spi message");
for (ret = 0; ret < ARRAY_SIZE; ret++) {
- if (!(ret % 6))
- puts("");
- printf("%.2X ", rx[ret]);
+ in.debug_rx[ret]=rx[ret];
}
- puts("");
+
/*/
/*prichozi data:
uint8_p[1]=rx[2];
uint8_p[2]=rx[1];
uint8_p[3]=rx[0]; /*MSB*/ /*with sign bit*/
- uint8_p[4]=uint8_p[5]=uint8_p[6]=uint8_p[7]=0;
/*halove sondy
* hal1 - bit95
in.hal2=!!(0x40 & rx[4]);
in.hal3=!!(0x20 & rx[4]);
- /*pwm enable
- * en1 - bit92
- * en2 - bit91
- * en2 - bit90
+ /* index position
+ * bits 92 downto 81
+ * 92..88 in rx[4] last 5 bits (from left)
+ * 87..81 in rx[5] first 7 bits (from left)
*/
- in.en1=!!(0x10 & rx[4]);
- in.en2=!!(0x08 & rx[4]);
- in.en3=!!(0x04 & rx[4]);
-
- /*shutdown
- * shdn1 - bit89
- * shdn2 - bit88
- * shdn3 - bit87
- */
- in.shdn1=!!(0x02 & rx[4]);
- in.shdn2=!!(0x01 & rx[4]);
- in.shdn3=!!(0x80 & rx[5]);
+ in.index_position=0x1F & rx[4];
+ in.index_position<<=8;
+ in.index_position|=0xFE & rx[5];
+ in.index_position>>=1;
/* current measurments count
* bits 80 downto 72
/** currents
- * ch0 - bits 71 downto 48
+ * ch2 - bits 71 downto 48
* 71..64 in rx[7] - all byte
* 63..56 in rx[8] - all byte
* 55..48 in rx[9] - all byte
- * ch1 - bits 47 downto 24
+ * ch0 - bits 47 downto 24
* 47..40 in rx[10] - all byte
* 39..32 in rx[11] - all byte
* 31..24 in rx[12] - all byte
- * ch2 - bits 23 downto 0
+ * ch1 - bits 23 downto 0
* 23..16 in rx[13] - all byte
* 15..8 in rx[14] - all byte
* 7..0 in rx[15] - all byte
*/
- in.ch0=rx[7];
+ in.ch2=rx[7];
+ in.ch2<<=8;
+ in.ch2|=rx[8];
+ in.ch2<<=8;
+ in.ch2|=rx[9];
+
+ in.ch0=rx[10];
in.ch0<<=8;
- in.ch0|=rx[8];
+ in.ch0|=rx[11];
in.ch0<<=8;
- in.ch0|=rx[9];
+ in.ch0|=rx[12];
- in.ch1=rx[10];
+ in.ch1=rx[13];
in.ch1<<=8;
- in.ch1|=rx[11];
+ in.ch1|=rx[14];
in.ch1<<=8;
- in.ch1|=rx[12];
-
- in.ch2=rx[13];
- in.ch2<<=8;
- in.ch2|=rx[14];
- in.ch2<<=8;
- in.ch2|=rx[15];
+ in.ch1|=rx[15];
return in;