From 06b1a193c87d7055643e48b1bd56f59c8e7fa519 Mon Sep 17 00:00:00 2001
From: Martin Prudek <prudemar@fel.cvut.cz>
Date: Wed, 15 Apr 2015 20:31:58 +0200
Subject: [PATCH] Bit positioning description changed after switching to
 128-bit SPI.

---
 pmsm-control/test_sw/rp_spi.c | 57 +++++++++++++++--------------------
 1 file changed, 25 insertions(+), 32 deletions(-)

diff --git a/pmsm-control/test_sw/rp_spi.c b/pmsm-control/test_sw/rp_spi.c
index a1de3ce..57a2122 100644
--- a/pmsm-control/test_sw/rp_spi.c
+++ b/pmsm-control/test_sw/rp_spi.c
@@ -97,18 +97,22 @@ struct rpi_in spi_read(uint8_t * tx)
 	/*/
 
 	/*prichozi data:
-	 * rx[0] - bity 95 downto 88 - bits, that come first
-	 * rx[1] - bity 87 downto 80
-	 * rx[2] - bity 79 downto 72
-	 * rx[3] - bity 71 downto 64
-	 * rx[4] - bity 63 downto 56
-	 * rx[5] - bity 55 downto 48
-	 * rx[6] - bity 47 downto 40
-	 * rx[7] - bity 39 downto 32
-	 * rx[8] - bity 31 downto 24
-	 * rx[9] - bity 23 downto 16
-	 * rx[10] - bity 15 downto 8
-	 * rx[11] - bity 7 downto 0
+	 * rx[0] - bity 127 downto 120
+	 * rx[1] - bity 119 downto 112
+	 * rx[2] - bity 111 downto 104
+	 * rx[3] - bity 103 downto 96
+	 * rx[4] - bity 95 downto 88
+	 * rx[5] - bity 87 downto 80
+	 * rx[6] - bity 79 downto 72
+	 * rx[7] - bity 71 downto 64
+	 * rx[8] - bity 63 downto 56
+	 * rx[9] - bity 55 downto 48
+	 * rx[10] - bity 47 downto 40
+	 * rx[11] - bity 39 downto 32
+	 * rx[12] - bity 31 downto 24
+	 * rx[13] - bity 23 downto 16
+	 * rx[14] - bity 15 downto 8
+	 * rx[15] - bity 7 downto 0
 	 */
 
 	/*uprava endianity pozice*/
@@ -121,27 +125,27 @@ struct rpi_in spi_read(uint8_t * tx)
 	uint8_p[4]=uint8_p[5]=uint8_p[6]=uint8_p[7]=0;
 
 	/*halove sondy
-	 * hal1 - bit63
-	 * hal2 - bit62
-	 * hal3 - bit61
+	 * hal1 - bit95
+	 * hal2 - bit94
+	 * hal3 - bit93
 	 */
 	in.hal1=!!(0x80 & rx[4]);
 	in.hal2=!!(0x40 & rx[4]);
 	in.hal3=!!(0x20 & rx[4]);
 
 	/*pwm enable
-	 * en1 - bit60
-	 * en2 - bit59
-	 * en2 - bit58
+	 * en1 - bit92
+	 * en2 - bit91
+	 * en2 - bit90
 	 */
 	in.en1=!!(0x10 & rx[4]);
 	in.en2=!!(0x08 & rx[4]);
 	in.en3=!!(0x04 & rx[4]);
 
 	/*shutdown
-	 * shdn1 - bit57
-	 * shdn2 - bit56
-	 * shdn3 - bit55
+	 * shdn1 - bit89
+	 * shdn2 - bit88
+	 * shdn3 - bit87
 	 */
 	in.shdn1=!!(0x02 & rx[4]);
 	in.shdn2=!!(0x01 & rx[4]);
@@ -170,17 +174,6 @@ struct rpi_in spi_read(uint8_t * tx)
 	in.b37=!!(0x20 & rx[7]);
 	in.b36=!!(0x10 & rx[7]);
 
-	/** currents
-	 * ch0 - bits 35 downto 24
-	 * 	35..32 in rx[7] - last 4
-	 * 	31..24 in rx[8] - all bytte
-	 * ch1 - bits 23 downto 12
-	 * 	23..16 in rx[9] - all byte
-	 * 	15..12 in rx[10] - first 4
-	 * ch2 - bits 11 downto 0
-	 * 	11..8 in rx[10] - last 4
-	 * 	7..0 in rx[11] - all byte
-	 */
 
 	in.ch0=0x0F & rx[7];
 	in.ch0<<=8;
-- 
2.39.2