模式匹配 所有位串均具有模式匹配功能. 该功能可用于检测启动代码等.要使用该功能,则必须用需匹配的模式来对REG_SS 编程 (请注意, POS 达到零时 REG_SS 不会与 REG  交换!) MATCH_MODE 位必须设为1. 输入数据 REG 现在与已编程的模式 REG_SS 相比较.发现匹配时会提出模式匹配中断. Bit MATCH_MODE selects whether the match filter is active or whether data is captured.…

LPC4350 SGPIO Experimentation The NXP LPC43xx microcontrollers have an interesting, programmable serial peripheral called the SGPIO (Serial GPIO). It consists of a slew of counters and shift registers that can be configured to serialize and deseriali…

The SGPIO output pins SGPIO14 and SGPIO15 can trigger a GPDMA request SGPIO pins SGPIO14 and SGPIO15 can trigger a GPDMA request. < Output = '1' > To generate the request, program a pulse in the bit stream of slice 14 or 15. For example, use a patte…

LPC43xx SGPIO Configuration The LPC43xx SGPIO peripheral is used to move samples between USB and the ADC/DAC chip (MAX5864). The SGPIO is a peripheral that has a bunch of 32-bit shift registers. These shift registers can be configured to act as a par…

正则表达式(regular expression)是一个特殊的字符序列,描述了一种字符串匹配的模式,可以用来检查一个字符串是否含有某种子字符串. 将匹配的子字符串替换或者从某个字符串中取出符合某个条件的子字符串,或者是在指定的文章中抓取特定的字符串等. Python处理正则表达式的模块是re模块,它是Python语言中拥有全部的正则表达式功能的模块. 正则表达式由一些普通字符和一些元字符组成.普通字符包括大小写的字母.数字和打印符号,而元字符是具有特殊含义的字符. 正则表达式大致的匹配过程是:…

设定一个pattern 把 'internationalization' 变成 'i18n', 比如word是house,pattern可以是h3e, 3se, 5, 1o1s1等, 给pattern和word,判断是否match, package DataStreamAverage; public class Solution3 { public boolean check(String s1, String s2) { return helper(s1, 0, s2, 0); } publi…

I²C SGPIO Configuration SGPIO is a hardware feature of LPC4300 series. There are 16 SGPIO pins called from SGPIO 0 to SGPIO 15. SGPIO is one of the functions of LPC 4300 pins which can be chosen. SGPIO could work as standard GPIO pins, or do stream p…

SGPIO inverted clock qualifier Hi, With bits 6:5 of SGPIO_MUX_CFG the QUALIFIER_MODE is selected (0x0=enable, 0x1=disable, 0x2=slice, 0x3=pin).With bit 8 (INV_QUALIFIER) of SLICE_MUX_CFG one can invert the qualifier (0x0=normal qualifier, 0x1=inverte…

AN11196: Camera interface design using SGPIO…

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