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This leon3 design is tailored to the Digilent Spartan3-1600E Evaluation board:
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http://www.digilentinc.com/Products/Detail.cfm?Prod=S3E1600&Nav1=Products&Nav2=Programmable
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Design specifics:
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* System reset is mapped to SW_SOUTH (reset)
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* DSU break is mapped to SW_EAST
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* LED 0/1 indicates console UART RX and TX activity.
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* LED 2/3 indicates DSU UART RX and TX activity.
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* LED 4 indicates processor in debug mode
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* LED 7 indicates processor in error mode
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* The GRETH core is enabled and runs without problems at 100 Mbit.
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Ethernet debug link is enabled, default IP is 192.168.0.51.
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* 16-bit flash prom can be read at address 0. It can be programmed
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with GRMON version 1.1.16 or later.
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* DDR is mapped at address 0x40000000 (64 Mbyte) and is clocked
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at 100 MHz. The processor and AMBA system runs on a different
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clock, and can typically reach 40 MHz. The processor clock
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is generated from the 50 MHz clock oscillator, scaled with the
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DCM factors (4/5) in xconfig.
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* The APBPS2 PS/2 core is attached to the PS/2 connector
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* The SVGA frame buffer runs fine with 800x600 resolution. Due to the
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limited number of clock buffers, no other resoltion is supported.
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Note that the board does not have a video DAC, so only the MSB bit (7)
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of the three colour channels is connected to the VGA connector.
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A test patter can be generated using grmon-1.1.18 or later with:
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draw test_screen 800 16
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* The DSU uart is connected to the female RS232 connected.
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The application UART1 is connected to the male RS232 connector.
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* The JTAG DSU interface is enabled.
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* Output from GRMON info sys is:
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ethernet startup.
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GRLIB build version: 4090
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initialising ..............
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detected frequency: 40 MHz
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Component Vendor
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LEON3 SPARC V8 Processor Gaisler Research
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AHB Debug UART Gaisler Research
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AHB Debug JTAG TAP Gaisler Research
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SVGA Controller Gaisler Research
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GR Ethernet MAC Gaisler Research
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AHB/APB Bridge Gaisler Research
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LEON3 Debug Support Unit Gaisler Research
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DDR266 Controller Gaisler Research
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LEON2 Memory Controller European Space Agency
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Generic APB UART Gaisler Research
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Multi-processor Interrupt Ctrl Gaisler Research
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Modular Timer Unit Gaisler Research
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PS/2 interface Gaisler Research
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General purpose I/O port Gaisler Research
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Use command 'info sys' to print a detailed report of attached cores
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grlib> inf sys
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00.01:003 Gaisler Research LEON3 SPARC V8 Processor (ver 0x0)
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ahb master 0
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01.01:007 Gaisler Research AHB Debug UART (ver 0x0)
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ahb master 1
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apb: 80000700 - 80000800
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baud rate 115200, ahb frequency 40.00
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02.01:01c Gaisler Research AHB Debug JTAG TAP (ver 0x0)
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ahb master 2
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03.01:063 Gaisler Research SVGA Controller (ver 0x0)
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ahb master 3
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apb: 80000600 - 80000700
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clk0: 40.00 MHz
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04.01:01d Gaisler Research GR Ethernet MAC (ver 0x0)
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ahb master 4, irq 12
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apb: 80000f00 - 80001000
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edcl ip 192.168.0.51, buffer 2 kbyte
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01.01:006 Gaisler Research AHB/APB Bridge (ver 0x0)
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ahb: 80000000 - 80100000
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02.01:004 Gaisler Research LEON3 Debug Support Unit (ver 0x1)
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ahb: 90000000 - a0000000
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AHB trace 256 lines, 32-bit bus, stack pointer 0x43fffff0
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CPU#0 win 8, hwbp 2, itrace 256, V8 mul/div, srmmu, lddel 1, GRFPU-lite
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icache 2 * 4 kbyte, 32 byte/line rnd
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dcache 2 * 4 kbyte, 16 byte/line rnd
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04.01:025 Gaisler Research DDR266 Controller (ver 0x0)
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ahb: 40000000 - 50000000
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ahb: fff00100 - fff00200
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16-bit DDR : 1 * 64 Mbyte @ 0x40000000
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100 MHz, col 10, ref 7.8 us, trfc 80 ns
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05.04:00f European Space Agency LEON2 Memory Controller (ver 0x1)
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ahb: 00000000 - 20000000
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ahb: 20000000 - 40000000
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ahb: 60000000 - 70000000
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apb: 80000000 - 80000100
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16-bit prom @ 0x00000000
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01.01:00c Gaisler Research Generic APB UART (ver 0x1)
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irq 2
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apb: 80000100 - 80000200
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baud rate 38461, DSU mode (FIFO debug)
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02.01:00d Gaisler Research Multi-processor Interrupt Ctrl (ver 0x3)
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apb: 80000200 - 80000300
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03.01:011 Gaisler Research Modular Timer Unit (ver 0x0)
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irq 8
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apb: 80000300 - 80000400
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8-bit scaler, 2 * 32-bit timers, divisor 40
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05.01:060 Gaisler Research PS/2 interface (ver 0x2)
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irq 5
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apb: 80000500 - 80000600
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0b.01:01a Gaisler Research General purpose I/O port (ver 0x0)
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apb: 80000b00 - 80000c00
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grlib>
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grlib> flas
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Intel-style 16-bit flash on D[31:16]
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Manuf. Intel
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Device MT28F128J3 )
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Device ID 0418ffff008844d1
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User ID ffffffffffffffff
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1 x 16 Mbyte = 16 Mbyte total @ 0x00000000
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CFI info
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flash family : 1
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flash size : 128 Mbit
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erase regions : 1
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erase blocks : 128
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write buffer : 32 bytes
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region 0 : 128 blocks of 128 Kbytes
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grlib>
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grlib> lo ~/examples/dhry412
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section: .text at 0x40000000, size 53296 bytes
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section: .data at 0x4000d030, size 2764 bytes
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total size: 56060 bytes (63.3 Mbit/s)
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read 262 symbols
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entry point: 0x40000000
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grlib> run
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Execution starts, 1000000 runs through Dhrystone
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Total execution time: 10.5 s
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Microseconds for one run through Dhrystone: 10.5
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Dhrystones per Second: 95073.0
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Dhrystones MIPS : 54.1
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Program exited normally.
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grlib>
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