[求助] MSP430大家用复位芯片吗？

wstt 2012-7-18 15:35 楼主

为了保证MSP430的上电稳定复位，大家怎么做的呢？

是否使用复位芯片呢？

还是使用MSP430自带BOR、SVS等功能完成复位？

希望请教下大家，如何完成简洁可靠的上电复位。

[ 本帖最后由 wstt 于 2012-7-18 15:47 编辑 ]

回复评论（10）

回复楼主 wstt 的帖子

430内部复位库文件支持函数：低边、高边复位设置

点赞 2012-7-18 16:11

板凳学士后

没用过复位芯片，用的MSP430的BOR复位。

点赞 2012-7-18 19:00

回复沙发 lyzhangxiang 的帖子

这个是怎么做的呢？
用到了那个模块，或者是某个430特有的外设？

点赞 2012-7-20 01:04

5楼 peter_zheng

msp430的复位信号，要保证掉电到一定阈值，一般使用外部复位电路就可以。

点赞 2012-7-20 03:58

6楼 elulis

最简单的应用是直接一个电阻把/RST上拉至Vcc，连电容都木有。吧工作完全交给BOR了，据手册介绍BOR会一直拉底RST直到电压适合工作。实际这么用时稳定性没有出过问题的

Python全文搜索引擎：<url>http://code.google.com/p/ming-search/</url>

点赞 2012-7-20 06:24

回复 4楼 wstt 的帖子

/*****************************************************************************
* MACROS
*****************************************************************************/
#define ENABLE_SVSL()       st(PMMCTL0_H = 0xA5; SVSMLCTL |= SVSLE; PMMCTL0_H = 0x00;)
#define DISABLE_SVSL()    st(PMMCTL0_H = 0xA5; SVSMLCTL &= ~SVSLE; PMMCTL0_H = 0x00;)
#define ENABLE_SVML()       st(PMMCTL0_H = 0xA5; SVSMLCTL |= SVMLE; PMMCTL0_H = 0x00;)
#define DISABLE_SVML()    st(PMMCTL0_H = 0xA5; SVSMLCTL &= ~SVMLE; PMMCTL0_H = 0x00;)
#define ENABLE_SVSH()       st(PMMCTL0_H = 0xA5; SVSMHCTL |= SVSHE; PMMCTL0_H = 0x00;)
#define DISABLE_SVSH()    st(PMMCTL0_H = 0xA5; SVSMHCTL &= ~SVSHE; PMMCTL0_H = 0x00;)
#define ENABLE_SVMH()       st(PMMCTL0_H = 0xA5; SVSMHCTL |= SVMHE; PMMCTL0_H = 0x00;)
#define DISABLE_SVMH()    st(PMMCTL0_H = 0xA5; SVSMHCTL &= ~SVMHE; PMMCTL0_H = 0x00;)
#define ENABLE_SVSL_SVML() st(PMMCTL0_H = 0xA5; SVSMLCTL |= (SVSLE + SVMLE); PMMCTL0_H = 0x00;)
#define DISABLE_SVSL_SVML()  st(PMMCTL0_H = 0xA5; SVSMLCTL &= ~(SVSLE + SVMLE); PMMCTL0_H = 0x00;)
#define ENABLE_SVSH_SVMH() st(PMMCTL0_H = 0xA5; SVSMHCTL |= (SVSHE + SVMHE); PMMCTL0_H = 0x00;)
#define DISABLE_SVSH_SVMH()  st(PMMCTL0_H = 0xA5; SVSMHCTL &= ~(SVSHE + SVMHE); PMMCTL0_H = 0x00;)

#define ENABLE_SVSL_RESET()    st(PMMCTL0_H = 0xA5; PMMRIE |= SVSLPE; PMMCTL0_H = 0x00;)
#define DISABLE_SVSL_RESET()    st(PMMCTL0_H = 0xA5; PMMRIE &= ~SVSLPE; PMMCTL0_H = 0x00;)
#define ENABLE_SVML_INTERRUPT() st(PMMCTL0_H = 0xA5; PMMRIE |= SVMLIE; PMMCTL0_H = 0x00;)
#define DISABLE_SVML_INTERRUPT()  st(PMMCTL0_H = 0xA5; PMMRIE &= ~SVMLIE; PMMCTL0_H = 0x00;)
#define ENABLE_SVSH_RESET()    st(PMMCTL0_H = 0xA5; PMMRIE |= SVSHPE; PMMCTL0_H = 0x00;)
#define DISABLE_SVSH_RESET()    st(PMMCTL0_H = 0xA5; PMMRIE &= ~SVSHPE; PMMCTL0_H = 0x00;)
#define ENABLE_SVMH_INTERRUPT() st(PMMCTL0_H = 0xA5; PMMRIE |= SVMHIE; PMMCTL0_H = 0x00;)
#define DISABLE_SVMH_INTERRUPT()  st(PMMCTL0_H = 0xA5; PMMRIE &= ~SVMHIE; PMMCTL0_H = 0x00;)
#define CLEAR_PMM_IFGS()       st(PMMCTL0_H = 0xA5; PMMIFG = 0; PMMCTL0_H = 0x00;)

点赞 2012-7-20 09:11