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authorThomas Tsou <ttsou@vt.edu>2010-08-05 11:48:41 -0700
committerThomas Tsou <ttsou@vt.edu>2010-08-13 12:25:36 -0700
commit70eae1d242a9530cab4efa927bd1331b099fdd00 (patch)
treea0050754ec06f71e9b2dd4415e576c370143b429 /firmware/fx2/include/fpga_regs_standard.h
parentef6953024f1075a729e85f2511c75de337879888 (diff)
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usrp1: Add FX2 firmware files
These firmware files for the usrp1 are imported from GNURadio.
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+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2004,2006 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef INCLUDED_FPGA_REGS_STANDARD_H
+#define INCLUDED_FPGA_REGS_STANDARD_H
+
+// Register numbers 0 to 31 are reserved for use in fpga_regs_common.h.
+// Registers 64 to 79 are available for custom FPGA builds.
+
+
+// DDC / DUC
+
+#define FR_INTERP_RATE 32 // [1,1024]
+#define FR_DECIM_RATE 33 // [1,256]
+
+// DDC center freq
+
+#define FR_RX_FREQ_0 34
+#define FR_RX_FREQ_1 35
+#define FR_RX_FREQ_2 36
+#define FR_RX_FREQ_3 37
+
+// See below for DDC Starting Phase
+
+// ------------------------------------------------------------------------
+// configure FPGA Rx mux
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-----------------------+-------+-------+-------+-------+-+-----+
+// | must be zero | Q3| I3| Q2| I2| Q1| I1| Q0| I0|Z| NCH |
+// +-----------------------+-------+-------+-------+-------+-+-----+
+//
+// There are a maximum of 4 digital downconverters in the the FPGA.
+// Each DDC has two 16-bit inputs, I and Q, and two 16-bit outputs, I & Q.
+//
+// DDC I inputs are specified by the two bit fields I3, I2, I1 & I0
+//
+// 0 = DDC input is from ADC 0
+// 1 = DDC input is from ADC 1
+// 2 = DDC input is from ADC 2
+// 3 = DDC input is from ADC 3
+//
+// If Z == 1, all DDC Q inputs are set to zero
+// If Z == 0, DDC Q inputs are specified by the two bit fields Q3, Q2, Q1 & Q0
+//
+// NCH specifies the number of complex channels that are sent across
+// the USB. The legal values are 1, 2 or 4, corresponding to 2, 4 or
+// 8 16-bit values.
+
+#define FR_RX_MUX 38
+
+// ------------------------------------------------------------------------
+// configure FPGA Tx Mux.
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-----------------------+-------+-------+-------+-------+-+-----+
+// | | DAC3 | DAC2 | DAC1 | DAC0 |0| NCH |
+// +-----------------------------------------------+-------+-+-----+
+//
+// NCH specifies the number of complex channels that are sent across
+// the USB. The legal values are 1 or 2, corresponding to 2 or 4
+// 16-bit values.
+//
+// There are two interpolators with complex inputs and outputs.
+// There are four DACs. (We use the DUC in each AD9862.)
+//
+// Each 4-bit DACx field specifies the source for the DAC and
+// whether or not that DAC is enabled. Each subfield is coded
+// like this:
+//
+// 3 2 1 0
+// +-+-----+
+// |E| N |
+// +-+-----+
+//
+// Where E is set if the DAC is enabled, and N specifies which
+// interpolator output is connected to this DAC.
+//
+// N which interp output
+// --- -------------------
+// 0 chan 0 I
+// 1 chan 0 Q
+// 2 chan 1 I
+// 3 chan 1 Q
+
+#define FR_TX_MUX 39
+
+// ------------------------------------------------------------------------
+// REFCLK control
+//
+// Control whether a reference clock is sent to the daughterboards,
+// and what frequency. The refclk is sent on d'board i/o pin 0.
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-----------------------------------------------+-+------------+
+// | Reserved (Must be zero) |E| DIVISOR |
+// +-----------------------------------------------+-+------------+
+
+//
+// Bit 7 -- 1 turns on refclk, 0 allows IO use
+// Bits 6:0 Divider value
+
+#define FR_TX_A_REFCLK 40
+#define FR_RX_A_REFCLK 41
+#define FR_TX_B_REFCLK 42
+#define FR_RX_B_REFCLK 43
+
+# define bmFR_REFCLK_EN 0x80
+# define bmFR_REFCLK_DIVISOR_MASK 0x7f
+
+// ------------------------------------------------------------------------
+// DDC Starting Phase
+
+#define FR_RX_PHASE_0 44
+#define FR_RX_PHASE_1 45
+#define FR_RX_PHASE_2 46
+#define FR_RX_PHASE_3 47
+
+// ------------------------------------------------------------------------
+// Tx data format control register
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-------------------------------------------------------+-------+
+// | Reserved (Must be zero) | FMT |
+// +-------------------------------------------------------+-------+
+//
+// FMT values:
+
+#define FR_TX_FORMAT 48
+# define bmFR_TX_FORMAT_16_IQ 0 // 16-bit I, 16-bit Q
+
+// ------------------------------------------------------------------------
+// Rx data format control register
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-----------------------------------------+-+-+---------+-------+
+// | Reserved (Must be zero) |B|Q| WIDTH | SHIFT |
+// +-----------------------------------------+-+-+---------+-------+
+//
+// FMT values:
+
+#define FR_RX_FORMAT 49
+
+# define bmFR_RX_FORMAT_SHIFT_MASK (0x0f << 0) // arithmetic right shift [0, 15]
+# define bmFR_RX_FORMAT_SHIFT_SHIFT 0
+# define bmFR_RX_FORMAT_WIDTH_MASK (0x1f << 4) // data width in bits [1, 16] (not all valid)
+# define bmFR_RX_FORMAT_WIDTH_SHIFT 4
+# define bmFR_RX_FORMAT_WANT_Q (0x1 << 9) // deliver both I & Q, else just I
+# define bmFR_RX_FORMAT_BYPASS_HB (0x1 << 10) // bypass half-band filter
+
+// The valid combinations currently are:
+//
+// B Q WIDTH SHIFT
+// 0 1 16 0
+// 0 1 8 8
+
+
+// Possible future values of WIDTH = {4, 2, 1}
+// 12 takes a bit more work, since we need to know packet alignment.
+
+// ------------------------------------------------------------------------
+// FIXME register numbers 50 to 63 are available
+
+// ------------------------------------------------------------------------
+// Registers 64 to 95 are reserved for user custom FPGA builds.
+// The standard USRP software will not touch these.
+
+#define FR_USER_0 64
+#define FR_USER_1 65
+#define FR_USER_2 66
+#define FR_USER_3 67
+#define FR_USER_4 68
+#define FR_USER_5 69
+#define FR_USER_6 70
+#define FR_USER_7 71
+#define FR_USER_8 72
+#define FR_USER_9 73
+#define FR_USER_10 74
+#define FR_USER_11 75
+#define FR_USER_12 76
+#define FR_USER_13 77
+#define FR_USER_14 78
+#define FR_USER_15 79
+#define FR_USER_16 80
+#define FR_USER_17 81
+#define FR_USER_18 82
+#define FR_USER_19 83
+#define FR_USER_20 84
+#define FR_USER_21 85
+#define FR_USER_22 86
+#define FR_USER_23 87
+#define FR_USER_24 88
+#define FR_USER_25 89
+#define FR_USER_26 90
+#define FR_USER_27 91
+#define FR_USER_28 92
+#define FR_USER_29 93
+#define FR_USER_30 94
+#define FR_USER_31 95
+
+//Registers needed for multi usrp master/slave configuration
+//
+//Rx Master/slave control register (FR_RX_MASTER_SLAVE = FR_USER_0)
+//
+#define FR_RX_MASTER_SLAVE 64
+#define bitnoFR_RX_SYNC 0
+#define bitnoFR_RX_SYNC_MASTER 1
+#define bitnoFR_RX_SYNC_SLAVE 2
+# define bmFR_RX_SYNC (1 <<bitnoFR_RX_SYNC) //1 If this is a master "sync now" and send sync to slave.
+ // If this is a slave "sync now" (testing purpose only)
+ // Sync is allmost the same as reset (clear all counters and buffers)
+ // except that the io outputs and settings don't get reset (otherwise it couldn't send the sync to the slave)
+ //0 Normal operation
+
+# define bmFR_RX_SYNC_MASTER (1 <<bitnoFR_RX_SYNC_MASTER) //1 This is a rx sync master, output sync_rx on rx_a_io[15]
+ //0 This is not a rx sync master
+# define bmFR_RX_SYNC_SLAVE (1 <<bitnoFR_RX_SYNC_SLAVE) //1 This is a rx sync slave, follow sync_rx on rx_a_io[bitnoFR_RX_SYNC_INPUT_IOPIN]
+ //0 This is not an rx sync slave.
+
+//Caution The master settings will output values on the io lines.
+//They inheritely enable these lines as output. If you have a daughtercard which uses these lines also as output then you will burn your usrp and daughtercard.
+//If you set the slave bits then your usrp won't do anything if you don't connect a master.
+// Rx Master/slave control register
+//
+// The way this is supposed to be used is connecting a (short) 16pin flatcable from an rx daughterboard in RXA master io_rx[8..15] to slave io_rx[8..15] on RXA of slave usrp
+// This can be done with basic_rx boards or dbsrx boards
+//dbsrx: connect master-J25 to slave-J25
+//basic rx: connect J25 to slave-J25
+//CAUTION: pay attention to the lineup of your connector.
+//The red line (pin1) should be at the same side of the daughterboards on master and slave.
+//If you turnaround the cable on one end you will burn your usrp.
+
+//You cannot use a 16pin flatcable if you are using FLEX400 or FLEX2400 daughterboards, since these use a lot of the io pins.
+//You can still link them but you must use only a 2pin or 1pin cable
+//You can also use a 2-wire link. put a 2pin header on io[15],gnd of the master RXA daughterboard and connect it to io15,gnd of the slave RXA db.
+//You can use a cable like the ones found with the leds on the mainbord of a PC.
+//Make sure you don't twist the cable, otherwise you connect the sync output to ground.
+//To be save you could also just use a single wire from master io[15] to slave io[15], but this is not optimal for signal integrity.
+
+
+// Since rx_io[0] can normally be used as a refclk and is not exported on all daughterboards this line
+// still has the refclk function if you use the master/slave setup (it is not touched by the master/slave settings).
+// The master/slave circuitry will only use io pin 15 and does not touch any of the other io pins.
+#define bitnoFR_RX_SYNC_INPUT_IOPIN 15
+#define bmFR_RX_SYNC_INPUT_IOPIN (1<<bitnoFR_RX_SYNC_INPUT_IOPIN)
+//TODO the output pin is still hardcoded in the verilog code, make it listen to the following define
+#define bitnoFR_RX_SYNC_OUTPUT_IOPIN 15
+#define bmFR_RX_SYNC_OUTPUT_IOPIN (1<<bitnoFR_RX_SYNC_OUTPUT_IOPIN)
+// =======================================================================
+// READBACK Registers
+// =======================================================================
+
+#define FR_RB_IO_RX_A_IO_TX_A 1 // read back a-side i/o pins
+#define FR_RB_IO_RX_B_IO_TX_B 2 // read back b-side i/o pins
+
+// ------------------------------------------------------------------------
+// FPGA Capability register
+//
+// 3 2 1
+// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+// +-----------------------------------------------+-+-----+-+-----+
+// | Reserved (Must be zero) |T|NDUC |R|NDDC |
+// +-----------------------------------------------+-+-----+-+-----+
+//
+// Bottom 4-bits are Rx capabilities
+// Next 4-bits are Tx capabilities
+
+#define FR_RB_CAPS 3
+# define bmFR_RB_CAPS_NDDC_MASK (0x7 << 0) // # of digital down converters 0,1,2,4
+# define bmFR_RB_CAPS_NDDC_SHIFT 0
+# define bmFR_RB_CAPS_RX_HAS_HALFBAND (0x1 << 3)
+# define bmFR_RB_CAPS_NDUC_MASK (0x7 << 4) // # of digital up converters 0,1,2
+# define bmFR_RB_CAPS_NDUC_SHIFT 4
+# define bmFR_RB_CAPS_TX_HAS_HALFBAND (0x1 << 7)
+
+
+#endif /* INCLUDED_FPGA_REGS_STANDARD_H */