Author |
Message |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
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Forum: General CCS C Discussion Posted: Thu Apr 16, 2015 2:25 am Subject: using DDR , SDRAM externally ? |
the price is not an issue
our markets is no more contains these stuffs
and buying online isn't available for me
if I could buy online , then I would buy a "sega genesis everdrive"
it's a ... |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Wed Apr 15, 2015 4:15 am Subject: using DDR , SDRAM externally ? |
this cartridge 8 mbits = 1 mbytes : 2 ICs
so I need 8 ICs for MK3 rom which it's size is 4 mbyte
.
is this reasonable ? |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Tue Apr 14, 2015 1:47 pm Subject: using DDR , SDRAM externally ? |
only I need to make a genesis sega cart (U MK3)
because it's unavailable in our markets
any way I would like to thank you all
for great information . |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Tue Apr 14, 2015 1:26 pm Subject: using DDR , SDRAM externally ? |
the problem isn't only with making a parallel 16 data pins
the sega will first give an address to get a specific byte
it's 4 mbytes addressing which equals to 32 pins
so the MCU should get this add ... |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Tue Apr 14, 2015 11:54 am Subject: using DDR , SDRAM externally ? |
Fine ..
MMC memory is really large capacity , small size , cheap , widely available
but it is serial , while genesis sega needs a parallel data output
what's the other options
* buying a cartrid ... |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Tue Apr 14, 2015 6:58 am Subject: using DDR , SDRAM externally ? |
there is some types of MCU's have the ability to interfacing SDRAM
like AT91SAM9 , I'm not sure of it's availability though . |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Mon Apr 13, 2015 4:40 pm Subject: using DDR , SDRAM externally ? |
SRAM was the first memory I thought with
but here in my country it's no more available.
let me explain what my project exactly
I need to make 'SEGA GENESIS CARTRIDGE'
'ultimate mortal kombat 3'
... |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Mon Apr 13, 2015 2:14 pm Subject: using DDR , SDRAM externally ? |
I need only one IC of it
and no more than (4 mbyte) 16 bit data output
I have pic18f2550 , cant it do it ? |
Topic: using DDR , SDRAM externally ? |
camp david
Replies: 21
Views: 25006
|
Forum: General CCS C Discussion Posted: Sun Apr 12, 2015 12:22 pm Subject: using DDR , SDRAM externally ? |
is there a possibility of using ddr or sdram externally
let's say controlled by microcontroller ?
thanx in advance. |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Thu Feb 19, 2015 9:05 am Subject: NOKIA LCD |
temtronic, it's a simple 16f677 based circuit
from RB4 to RB7 connected to LCD #sck to #sres
4 wires out from pic to LCD, mclr of pic connected to vdd through 10k resistor no more.
Let me just ma ... |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Thu Feb 19, 2015 8:49 am Subject: NOKIA LCD |
I don't need an invitation as this is an open forum where any member can politely ask for help.
Thanks for inferring I'm young though; at 37 that's a compliment :-)
Keith
no need for thanx, ... |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Thu Feb 19, 2015 8:16 am Subject: NOKIA LCD |
A good explanation, the supply will be 3.3 for all devices.
I made my hardware already, I agree with you no simulator gives 100% result of the real circuit, but Proteus consider a nice pre-test.
t ... |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Thu Feb 19, 2015 7:22 am Subject: NOKIA LCD |
To be honest Jay, I'm surprised you even bothered to reply after the impudent remarks the poster wrote.
"Many younger kids more focused?" Not to my knowledge. Most of the young people I ... |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Thu Feb 19, 2015 7:03 am Subject: NOKIA LCD |
Sure , in logic 0=0 v & 1=supply voltage
I missed the difference between lcd & pic voltages
and I depended on the circuit I have built in Proteus
I will give it a try then back . |
Topic: NOKIA LCD |
camp david
Replies: 26
Views: 29088
|
Forum: General CCS C Discussion Posted: Wed Feb 18, 2015 11:32 pm Subject: NOKIA LCD |
Many younger kids more focusing and very well done the works
than elders ,for sure I just started the work with mcu's PIC since less than 6 months
you probably work since 80's , but you post as a ne ... |
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