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