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| .. | ||
| .config | ||
| ahbrom.vhd | ||
| config.h | ||
| config.help | ||
| config.in | ||
| config.vhd | ||
| config.vhd.h | ||
| config.vhd.in | ||
| defconfig | ||
| lconfig.tk | ||
| leon3mp.ucf | ||
| leon3mp.vhd | ||
| leon3mp.xcf | ||
| Makefile | ||
| prom.h | ||
| prom.srec | ||
| ram.srec | ||
| README.txt | ||
| systest.c | ||
| testbench.vhd | ||
| tkconfig.h | ||
| wave.do | ||
This leon3 design is tailored to the Digilent Nexys3 board
Simulation and synthesis
------------------------
Compile Modelsim simulation: make sim
Synthesise with Xilinx ISE: make ise
Program the FPGA: make ise-prog-fpga
PROM can not be programmed through ise-prog-impact
Design specifics
----------------
* System reset is mapped to Center button
* LED 0/1 indicate USB-UART RX/TX activity. (Connected to Debug UART)
* LED 2 DSU Debug Mode
* LED 3 indicate processor in error mode
* 16-bit PCM rom can be read at address 0.
* The application UART1 is unconnected. To enable it uncomment the in/out
pads for the apbuart and comment out the ahbuart pads.
* The JTAG DSU interface is enabled and accesible via the USB/JTAG port and USB/UART.
Start grmon with -digilent to connect with USB/JTAG.
Start grmon with -uart </dev/ttyUSB#> to connect with USB/UART.
* The SRAM is accessed asynchronously and has an accestime of 70ns. It is therefore
necesssssary to add extra wait states for the SRAM. This can be done by starting
GRMON with the parameters: -ramrws 3 -ramwws 3
One or two waitstates might also work.
* Output from GRMON is:
grmon -eth 192.168.0.51 -u
GRMON2 LEON debug monitor v2.0.43-2-g95d293c internal version
Copyright (C) 2013 Aeroflex Gaisler - All rights reserved.
For latest updates, go to http://www.gaisler.com/
Comments or bug-reports to support@gaisler.com
Parsing -eth 192.168.0.51
Parsing -u
Commands missing help:
datacache
Ethernet startup...
GRLIB build version: 4137
Detected frequency: 50 MHz
Component Vendor
LEON3 SPARC V8 Processor Aeroflex Gaisler
AHB Debug UART Aeroflex Gaisler
JTAG Debug Link Aeroflex Gaisler
GR Ethernet MAC Aeroflex Gaisler
AHB/APB Bridge Aeroflex Gaisler
LEON3 Debug Support Unit Aeroflex Gaisler
LEON2 Memory Controller European Space Agency
Generic UART Aeroflex Gaisler
Multi-processor Interrupt Ctrl. Aeroflex Gaisler
Modular Timer Unit Aeroflex Gaisler
Use command 'info sys' to print a detailed report of attached cores
grmon2> load ~/dhry.leon3
40000000 .text 54.7kB / 54.7kB [===============>] 100%
4000DAF0 .data 2.7kB / 2.7kB [===============>] 100%
Total size: 57.44kB (29.41Mbit/s)
Entry point 0x40000000
Image /home/alexander/dhry.leon3 loaded
grmon2> run
Execution starts, 1000000 runs through Dhrystone
Total execution time: 11.0 s
Microseconds for one run through Dhrystone: 11.0
Dhrystones per Second: 91156.4
Dhrystones MIPS : 51.9
Program exited normally.
grmon2> info sys
cpu0 Aeroflex Gaisler LEON3 SPARC V8 Processor
AHB Master 0
ahbuart0 Aeroflex Gaisler AHB Debug UART
AHB Master 1
APB: 80000700 - 80000800
Baudrate 115200, AHB frequency 50.00 MHz
ahbjtag0 Aeroflex Gaisler JTAG Debug Link
AHB Master 2
greth0 Aeroflex Gaisler GR Ethernet MAC
AHB Master 3
APB: 80000F00 - 80001000
IRQ: 12
edcl ip 192.168.0.51, buffer 2 kbyte
apbmst0 Aeroflex Gaisler AHB/APB Bridge
AHB: 80000000 - 80100000
dsu0 Aeroflex Gaisler LEON3 Debug Support Unit
AHB: 90000000 - A0000000
AHB trace: 128 lines, 32-bit bus
CPU0: win 8, hwbp 2, itrace 128, V8 mul/div, lddel 1
stack pointer 0x40fffff0
icache 2 * 8 kB, 16 B/line rnd
dcache 2 * 4 kB, 16 B/line rnd
mctrl0 European Space Agency LEON2 Memory Controller
AHB: 00000000 - 20000000
APB: 80000000 - 80000100
16-bit prom @ 0x00000000
16-bit static ram: 1 * 16384 kbyte @ 0x40000000
uart0 Aeroflex Gaisler Generic UART
APB: 80000100 - 80000200
IRQ: 2
Baudrate 38343
irqmp0 Aeroflex Gaisler Multi-processor Interrupt Ctrl.
APB: 80000200 - 80000300
gptimer0 Aeroflex Gaisler Modular Timer Unit
APB: 80000300 - 80000400
IRQ: 8
8-bit scalar, 2 * 32-bit timers, divisor 50