DDR4是JEDEC组织关于DRAM器件的下一代标准.DDR4主要是针对需要高带宽低功耗的场合.这些需求导致了DDR4芯片引入了一些新的特点,这些新的特点,导致在系统设计中,引入一些新的设计需求. DDR4的I/O架构称为PSOD(Pseudo Open Drain),这个新的设计,将会带来接收端功耗的变化,以及Vref电平的差异.接下来的将会讨论PSOD输出和上一代DDR3标准的差异. POD vs STLL 驱动DRAM工业发展的一个主要市场需求是对内存器件的低功耗要求.介于这个原因,DDR
Advantages of Migrating to DDR5 DDR5 is the next evolution in DRAM, bringing a robust list of new features geared to increase reliability, availability, and serviceability (RAS); reduce power; and dramatically improve performance. Some of the key fea
Redhat 安装DBI和ORACLE DBD tar -zxvf DBI-1.616.tar.gz cd DBI-1.616 perl Makefile.PL make make install 2. oadb01:/root# tar -zxvf DBD-Oracle-1.36.tar.gz 声明ORACLE_HOME oadb01:/root# export ORACLE_HOME=/u01/app/oracle/product/11.2.0.4/db_1 perl Makefile.pl
1)DBI接口 A,也就是通常所讲的MCU借口,俗称80 system接口.The lcd interface between host processor and LCM device list as below,The LCM driver will repeated update panel display.MCU借口通过并行接口传输控制命令和数据,并通过往LCM模组自带的GRAM(graphic RAM)更新数据实现屏幕的刷新. DBI接口分为串行和并行两种,模型如下: B,以典型的18
[root@wx03 mojo]# cat relink.pl use Mojolicious::Lite; use JSON qw/encode_json decode_json/; use Encode; no strict; no warnings; use JSON; use POSIX; use JSON::RPC::Client; use Data::Dumper; use DBI; # /foo?user=sri` my %hash=(); my $dbUser='DEVOPS';
[root@dr-mysql01 ~]# cat t2.pl use DBI; my $dbUser='zabbix'; my $user="root"; my $passwd="1234567"; my $TABLE_NAME='history_uint'; my $date='201605'; my $dbh = DBI->connect("dbi:mysql:database=zabbix;host=192.168.32.55;port=330