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Altera_Forum
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16 years ago

Changing the Size of Data and Instruction Cache

Hello again, I am trying to increase the data and instruction cache to test if the speed increases when reading data from the UART. At first, I tried making it four times bigger, Quartus said ...
Altera_Forum's avatar
Altera_Forum
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16 years ago

Hello again lads,

So I started the system from scratch. I did "git clean -f -x -d" and lost all changes. First I compiled the quartus project including the larger cache memories (8Inst and 4Data), then started from make menuconfig with default options.

then make vendor_hw select

make romfs

make

nios2-configure sof

nios2-download -g

nois2-terminal

the results, the same :( below is a message of where it stops most frequently. 

NiosII EDS]$ nios2-terminal
nios2-terminal: connected to hardware target using JTAG UART on cable
nios2-terminal: "USB-Blaster ", device 1, instance 0
nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)
Uncompressing Linux... Ok, booting the kernel.
Linux version 2.6.30 (pancho@holaamigos) (gcc version 3.4.6)# 5 PREEMPT Tue Jul 14 20:19:15 CDT 2009
uClinux/Nios II
Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 2032
Kernel command line:
NR_IRQS:32
PID hash table entries: 32 (order: 5, 128 bytes)
Dentry cache hash table entries: 1024 (order: 0, 4096 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory available: 5352k/2556k RAM, 0k/0k ROM (1669k kernel code, 887k data)
Calibrating delay loop... 46.48 BogoMIPS (lpj=232448)
Mount-cache hash table entries: 512
net_namespace: 264 bytes
NET: Registered protocol family 16
init_BSP(): registering device resources
bio: create slab <bio-0> at 0
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 512 (order: 0, 4096 bytes)
TCP bind hash table entries: 512 (order: -1, 2048 bytes)
TCP: Hash tables configured (established 512 bind 512)
TCP reno registered
NET: Registered protocol family 1
io scheduler noop registered
io scheduler deadline registered (default)
ttyJ0 at MMIO 0x19020f0 (irq = 2) is a Altera JTAG UART
console  enabled
ttyS0 at MMIO 0x1902040 (irq = 3) is a Altera UART
dm9000 Ethernet Driver, V1.31

Exactly the same line as before. NOw I&#39;ve got to build again all the drivers. Good thing I worte them down hehe.

Still haven&#39;t been able. Any ideas are welcome.

Thank you all

Francisco