【(?)导(Dao)读(Du)】(?)电(Dian)源(Yuan)管(Guan)理(Li)集(Ji)成(Cheng)电(Dian)路(Lu)(PMIC)有(You)益(Yi)于(Yu)简(Jian)化(Hua)最(Zui)终(Zhong)应(Ying)用(Yong)并(Bing)缩(Suo)小(Xiao)其(Qi)尺(Chi)寸(Cun)，(?)也(Ye)因(Yin)此(Ci)备(Bei)受(Shou)青(Qing)睐(?)。(?)然(Ran)而(?)，(?)当(Dang)默(Mo)认(Ren)启(Qi)动(Dong)时(Shi)序(Xu)和(He)输(Shu)出(Chu)电(Dian)压(Ya)与(Yu)应(Ying)用(Yong)要(Yao)求(Qiu)不(Bu)符(Fu)时(Shi)，(?)就(Jiu)需(Xu)要(Yao)定(Ding)制(Zhi)上(Shang)电(Dian)设(She)置(Zhi)。(?)大(Da)多(Duo)数(Shu)情(Qing)况(Kuang)下(Xia)，(?)电(Dian)路(Lu)没(Mei)有(You)可(Ke)以(Yi)存(Cun)储(Chu)这(Zhe)些(Xie)设(She)置(Zhi)的(De)非(Fei)易(Yi)失(Shi)性(Xing)存(Cun)储(Chu)器(Qi)(NVM)。(?)对(Dui)此(Ci)，(?)低(Di)功(Gong)耗(Hao)微(Wei)控(Kong)制(Zhi)器(Qi)是(Shi)一(Yi)个(Ge)很(Hen)好(Hao)的(De)解(Jie)决(Jue)方(Fang)案(An)，(?)其(Qi)功(Gong)能(Neng)特(Te)性(Xing)和(He)所(Suo)包(Bao)含(Han)的(De)工(Gong)具(Ju)可(Ke)以(Yi)在(Zai)上(Shang)电(Dian)时(Shi)对(Dui)PMIC控(Kong)制(Zhi)寄(Ji)存(Cun)器(Qi)进(Jin)行(Xing)编(Bian)程(Cheng)，(?)而(?)不(Bu)需(Xu)要(Yao)开(Kai)发(Fa)固(Gu)件(Jian)。(?)本(Ben)文(Wen)将(Jiang)探(Tan)讨(Tao)如(Ru)何(He)使(Shi)用(Yong)工(Gong)具(Ju)链(Lian)来(Lai)解(Jie)决(Jue)集(Ji)成(Cheng)难(Nan)题(Ti)。(?)该(Gai)工(Gong)具(Ju)链(Lian)无(Wu)需(Xu)开(Kai)发(Fa)固(Gu)件(Jian)，(?)能(Neng)够(Gou)简(Jian)化(Hua)PMIC的(De)定(Ding)制(Zhi)过(Guo)程(Cheng)，(?)并(Bing)显(Xian)著(Zhu)缩(Suo)短(Duan)开(Kai)发(Fa)周(Zhou)期(Qi)。(?)
摘(Zhai)要(Yao)
电(Dian)源(Yuan)管(Guan)理(Li)集(Ji)成(Cheng)电(Dian)路(Lu)(PMIC)有(You)益(Yi)于(Yu)简(Jian)化(Hua)最(Zui)终(Zhong)应(Ying)用(Yong)并(Bing)缩(Suo)小(Xiao)其(Qi)尺(Chi)寸(Cun)，(?)也(Ye)因(Yin)此(Ci)备(Bei)受(Shou)青(Qing)睐(?)。(?)然(Ran)而(?)，(?)当(Dang)默(Mo)认(Ren)启(Qi)动(Dong)时(Shi)序(Xu)和(He)输(Shu)出(Chu)电(Dian)压(Ya)与(Yu)应(Ying)用(Yong)要(Yao)求(Qiu)不(Bu)符(Fu)时(Shi)，(?)就(Jiu)需(Xu)要(Yao)定(Ding)制(Zhi)上(Shang)电(Dian)设(She)置(Zhi)。(?)大(Da)多(Duo)数(Shu)情(Qing)况(Kuang)下(Xia)，(?)电(Dian)路(Lu)没(Mei)有(You)可(Ke)以(Yi)存(Cun)储(Chu)这(Zhe)些(Xie)设(She)置(Zhi)的(De)非(Fei)易(Yi)失(Shi)性(Xing)存(Cun)储(Chu)器(Qi)(NVM)。(?)对(Dui)此(Ci)，(?)低(Di)功(Gong)耗(Hao)微(Wei)控(Kong)制(Zhi)器(Qi)是(Shi)一(Yi)个(Ge)很(Hen)好(Hao)的(De)解(Jie)决(Jue)方(Fang)案(An)，(?)其(Qi)功(Gong)能(Neng)特(Te)性(Xing)和(He)所(Suo)包(Bao)含(Han)的(De)工(Gong)具(Ju)可(Ke)以(Yi)在(Zai)上(Shang)电(Dian)时(Shi)对(Dui)PMIC控(Kong)制(Zhi)寄(Ji)存(Cun)器(Qi)进(Jin)行(Xing)编(Bian)程(Cheng)，(?)而(?)不(Bu)需(Xu)要(Yao)开(Kai)发(Fa)固(Gu)件(Jian)。(?)本(Ben)文(Wen)将(Jiang)探(Tan)讨(Tao)如(Ru)何(He)使(Shi)用(Yong)工(Gong)具(Ju)链(Lian)来(Lai)解(Jie)决(Jue)集(Ji)成(Cheng)难(Nan)题(Ti)。(?)该(Gai)工(Gong)具(Ju)链(Lian)无(Wu)需(Xu)开(Kai)发(Fa)固(Gu)件(Jian)，(?)能(Neng)够(Gou)简(Jian)化(Hua)PMIC的(De)定(Ding)制(Zhi)过(Guo)程(Cheng)，(?)并(Bing)显(Xian)著(Zhu)缩(Suo)短(Duan)开(Kai)发(Fa)周(Zhou)期(Qi)。(?)
简(Jian)介(Jie)
为(Wei)了(Liao)减(Jian)小(Xiao)手(Shou)持(Chi)设(She)备(Bei)、(?)智(Zhi)能(Neng)相(Xiang)机(Ji)和(He)其(Qi)他(Ta)便(Bian)携(Xie)式(Shi)设(She)备(Bei)的(De)尺(Chi)寸(Cun)并(Bing)降(Jiang)低(Di)成(Cheng)本(Ben)，(?)设(She)计(Ji)时(Shi)需(Xu)使(Shi)用(Yong)高(Gao)度(Du)集(Ji)成(Cheng)且(Qie)功(Gong)能(Neng)强(Qiang)大(Da)的(De)器(Qi)件(Jian)。(?)MAX77714是(Shi)一(Yi)款(Kuan)高(Gao)度(Du)集(Ji)成(Cheng)的(De)PMIC，(?)包(Bao)含(Han)多(Duo)个(Ge)降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)、(?)低(Di)压(Ya)差(Cha)(LDO)稳(Wen)压(Ya)器(Qi)、(?)通(Tong)用(Yong)输(Shu)入(Ru)输(Shu)出(Chu)(GPIO)和(He)实(Shi)时(Shi)时(Shi)钟(Zhong)(RTC)，(?)可(Ke)用(Yong)于(Yu)生(Sheng)成(Cheng)应(Ying)用(Yong)所(Suo)需(Xu)的(De)所(Suo)有(You)电(Dian)源(Yuan)轨(Gui)。(?)
灵(Ling)活(Huo)的(De)时(Shi)序(Xu)控(Kong)制(Zhi)器(Qi)支(Zhi)持(Chi)针(Zhen)对(Dui)目(Mu)标(Biao)应(Ying)用(Yong)定(Ding)制(Zhi)上(Shang)电(Dian)和(He)关(Guan)断(Duan)时(Shi)序(Xu)。(?)
这(Zhe)款(Kuan)PMIC提(Ti)供(Gong)的(De)几(Ji)种(Zhong)VOUT/时(Shi)序(Xu)控(Kong)制(Zhi)器(Qi)选(Xuan)项(Xiang)（(?)由(You)完(Wan)整(Zheng)产(Chan)品(Pin)型(Xing)号(Hao)定(Ding)义(Yi)）(?)不(Bu)符(Fu)合(He)应(Ying)用(Yong)要(Yao)求(Qiu)。(?)为(Wei)了(Liao)提(Ti)高(Gao)灵(Ling)活(Huo)性(Xing)，(?)可(Ke)以(Yi)使(Shi)用(Yong)低(Di)功(Gong)耗(Hao)微(Wei)控(Kong)制(Zhi)器(Qi)作(Zuo)为(Wei)替(Ti)代(Dai)解(Jie)决(Jue)方(Fang)案(An)。(?)该(Gai)器(Qi)件(Jian)可(Ke)以(Yi)在(Zai)上(Shang)电(Dian)时(Shi)唤(Huan)醒(Xing)，(?)对(Dui)器(Qi)件(Jian)寄(Ji)存(Cun)器(Qi)进(Jin)行(Xing)编(Bian)程(Cheng)，(?)然(Ran)后(Hou)休(Xiu)眠(Mian)以(Yi)节(Jie)省(Sheng)电(Dian)力(Li)。(?)
要(Yao)求(Qiu)高(Gao)集(Ji)成(Cheng)度(Du)的(De)中(Zhong)等(Deng)规(Gui)模(Mo)应(Ying)用(Yong)需(Xu)要(Yao)采(Cai)用(Yong)现(Xian)成(Cheng)器(Qi)件(Jian)的(De)简(Jian)单(Dan)解(Jie)决(Jue)方(Fang)案(An)，(?)并(Bing)根(Gen)据(Ju)需(Xu)求(Qiu)定(Ding)制(Zhi)操(Cao)作(Zuo)。(?)
硬(Ying)件(Jian)设(She)计(Ji)人(Ren)员(Yuan)一(Yi)直(Zhi)希(Xi)望(Wang)能(Neng)够(Gou)拥(Yong)有(You)可(Ke)以(Yi)自(Zi)动(Dong)生(Sheng)成(Cheng)固(Gu)件(Jian)代(Dai)码(Ma)的(De)工(Gong)具(Ju)，(?)让(Rang)他(Ta)们(Men)可(Ke)以(Yi)在(Zai)前(Qian)期(Qi)开(Kai)发(Fa)时(Shi)避(Bi)免(Mian)涉(She)及(Ji)软(Ruan)件(Jian)资(Zi)源(Yuan)，(?)同(Tong)时(Shi)还(Huan)能(Neng)优(You)化(Hua)资(Zi)源(Yuan)的(De)使(Shi)用(Yong)。(?)
MAX28200
MAX28200是(Shi)一(Yi)款(Kuan)低(Di)功(Gong)耗(Hao)、(?)小(Xiao)尺(Chi)寸(Cun)（(?)1.7 mm ×(?) 1.8 mm）(?)RISC微(Wei)控(Kong)制(Zhi)器(Qi)，(?)带(Dai)有(You)多(Duo)种(Zhong)外(Wai)设(She)。(?)对(Dui)于(Yu)此(Ci)应(Ying)用(Yong)，(?)我(Wo)们(Men)使(Shi)用(Yong)两(Liang)个(Ge)GPIO引(Yin)脚(Jiao)作(Zuo)为(Wei)位(Wei)触(Chu)发(Fa)I2C主(Zhu)机(Ji)。(?)
电(Dian)源(Yuan)电(Dian)压(Ya)最(Zui)高(Gao)为(Wei)3.6 V，(?)因(Yin)此(Ci)如(Ru)果(Guo)输(Shu)入(Ru)电(Dian)压(Ya)超(Chao)过(Guo)3.6 V，(?)则(Ze)使(Shi)用(Yong)始(Shi)终(Zhong)开(Kai)启(Qi)的(De)LDO稳(Wen)压(Ya)器(Qi)为(Wei)微(Wei)控(Kong)制(Zhi)器(Qi)供(Gong)电(Dian)。(?)该(Gai)器(Qi)件(Jian)可(Ke)以(Yi)通(Tong)过(Guo)I2C节(Jie)点(Dian)接(Jie)口(Kou)进(Jin)行(Xing)编(Bian)程(Cheng)。(?)
MAX77714
MAX77714（(?)图(Tu)1）(?)是(Shi)一(Yi)款(Kuan)高(Gao)度(Du)集(Ji)成(Cheng)的(De)PMIC，(?)包(Bao)含(Han)四(Si)个(Ge)降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)、(?)九(Jiu)个(Ge)LDO稳(Wen)压(Ya)器(Qi)、(?)八(Ba)个(Ge)GPIO、(?)一(Yi)个(Ge)RTC和(He)一(Yi)个(Ge)灵(Ling)活(Huo)的(De)电(Dian)源(Yuan)时(Shi)序(Xu)控(Kong)制(Zhi)器(Qi)(FPS)。(?)降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)和(He)LDO稳(Wen)压(Ya)器(Qi)按(An)照(Zhao)默(Mo)认(Ren)时(Shi)序(Xu)和(He)电(Dian)压(Ya)上(Shang)电(Dian)，(?)并(Bing)遵(Zun)循(Xun)电(Dian)压(Ya)轨(Gui)规(Gui)范(Fan)。(?)用(Yong)户(Hu)可(Ke)以(Yi)通(Tong)过(Guo)I2C嵌(Qian)入(Ru)式(Shi)接(Jie)口(Kou)进(Jin)行(Xing)修(Xiu)改(Gai)。(?)然(Ran)而(?)，(?)在(Zai)大(Da)多(Duo)数(Shu)情(Qing)况(Kuang)下(Xia)，(?)我(Wo)们(Men)需(Xu)确(Que)保(Bao)默(Mo)认(Ren)时(Shi)序(Xu)和(He)电(Dian)压(Ya)与(Yu)连(Lian)接(Jie)到(Dao)PMIC的(De)器(Qi)件(Jian)的(De)要(Yao)求(Qiu)相(Xiang)匹(Pi)配(Pei)；(?)如(Ru)果(Guo)电(Dian)压(Ya)超(Chao)过(Guo)其(Qi)最(Zui)大(Da)额(E)定(Ding)值(Zhi)，(?)器(Qi)件(Jian)可(Ke)能(Neng)会(Hui)损(Sun)坏(Huai)。(?)
上(Shang)电(Dian)和(He)关(Guan)断(Duan)时(Shi)序(Xu)也(Ye)很(Hen)重(Zhong)要(Yao)，(?)因(Yin)为(Wei)现(Xian)场(Chang)可(Ke)编(Bian)程(Cheng)门(Men)阵(Zhen)列(Lie)(FPGA)等(Deng)器(Qi)件(Jian)为(Wei)了(Liao)正(Zheng)常(Chang)运(Yun)行(Xing)，(?)需(Xu)要(Yao)按(An)照(Zhao)正(Zheng)确(Que)的(De)时(Shi)序(Xu)使(Shi)能(Neng)和(He)禁(Jin)用(Yong)电(Dian)压(Ya)。(?)图(Tu)2为(Wei)默(Mo)认(Ren)上(Shang)电(Dian)时(Shi)序(Xu)。(?)共(Gong)有(You)八(Ba)个(Ge)时(Shi)隙(Xi)，(?)电(Dian)压(Ya)可(Ke)以(Yi)在(Zai)任(Ren)意(Yi)一(Yi)个(Ge)时(Shi)隙(Xi)中(Zhong)使(Shi)能(Neng)。(?)该(Gai)器(Qi)件(Jian)可(Ke)以(Yi)由(You)高(Gao)达(Da)5.5 V的(De)电(Dian)压(Ya)供(Gong)电(Dian)。(?)
图(Tu)1.MAX77714简(Jian)化(Hua)功(Gong)能(Neng)框(Kuang)图(Tu)。(?)
图(Tu)2.MAX77714EWC+默(Mo)认(Ren)上(Shang)电(Dian)时(Shi)序(Xu)。(?)
器(Qi)件(Jian)接(Jie)口(Kou)
P0.0和(He)P0.1用(Yong)于(Yu)生(Sheng)成(Cheng)针(Zhen)对(Dui)PMIC的(De)I2C事(Shi)务(Wu)；(?)P0.2负(Fu)责(Ze)监(Jian)控(Kong)GPIO4的(De)状(Zhuang)态(Tai)；(?)P0.3利(Li)用(Yong)SPDT开(Kai)关(Guan)选(Xuan)择(Ze)I2C主(Zhu)机(Ji)（(?)MAX28200或(Huo)主(Zhu)机(Ji)微(Wei)控(Kong)制(Zhi)器(Qi)）(?)。(?)模(Mo)拟(Ni)开(Kai)关(Guan)是(Shi)选(Xuan)配(Pei)项(Xiang)，(?)仅(Jin)在(Zai)主(Zhu)机(Ji)微(Wei)控(Kong)制(Zhi)器(Qi)需(Xu)在(Zai)上(Shang)电(Dian)后(Hou)控(Kong)制(Zhi)PMIC时(Shi)才(Cai)需(Xu)要(Yao)配(Pei)置(Zhi)（(?)见(Jian)图(Tu)3）(?)。(?)
图(Tu)3.MAX28200和(He)MAX77714与(Yu)MAX14689和(He)ADP166连(Lian)接(Jie)。(?)
上(Shang)电(Dian)复(Fu)位(Wei)(POR)如(Ru)图(Tu)4所(Suo)示(Shi)：(?)
1. P0.3置(Zhi)为(Wei)低(Di)电(Dian)平(Ping)，(?)选(Xuan)择(Ze)该(Gai)器(Qi)件(Jian)作(Zuo)为(Wei)PMIC的(De)I2C主(Zhu)机(Ji)。(?)
2. 写(Xie)入(Ru)以(Yi)下(Xia)所(Suo)需(Xu)的(De)数(Shu)据(Ju)寄(Ji)存(Cun)器(Qi)。(?)
3. P0.3置(Zhi)为(Wei)高(Gao)电(Dian)平(Ping)，(?)选(Xuan)择(Ze)主(Zhu)机(Ji)微(Wei)控(Kong)制(Zhi)器(Qi)作(Zuo)为(Wei)I2C主(Zhu)机(Ji)，(?)该(Gai)器(Qi)件(Jian)进(Jin)入(Ru)休(Xiu)眠(Mian)模(Mo)式(Shi)。(?)
4. P0.2连(Lian)接(Jie)到(Dao)GPIO4，(?)用(Yong)于(Yu)在(Zai)关(Guan)断(Duan)时(Shi)唤(Huan)醒(Xing)器(Qi)件(Jian)并(Bing)对(Dui)寄(Ji)存(Cun)器(Qi)重(Zhong)新(Xin)编(Bian)程(Cheng)。(?)
请(Qing)注(Zhu)意(Yi)，(?)在(Zai)配(Pei)置(Zhi)结(Jie)束(Shu)时(Shi)，(?)必(Bi)须(Xu)将(Jiang)GPIO4置(Zhi)为(Wei)高(Gao)电(Dian)平(Ping)。(?)
一(Yi)旦(Dan)使(Shi)用(Yong)EN0和(He)EN1信(Xin)号(Hao)使(Shi)能(Neng)PMIC，(?)它(Ta)就(Jiu)会(Hui)以(Yi)新(Xin)的(De)时(Shi)序(Xu)/电(Dian)压(Ya)配(Pei)置(Zhi)上(Shang)电(Dian)。(?)
图(Tu)4.MAX28200程(Cheng)序(Xu)流(Liu)程(Cheng)。(?)
MAX77714上(Shang)电(Dian)和(He)关(Guan)断(Duan)时(Shi)序(Xu)由(You)此(Ci)处(Chu)提(Ti)供(Gong)的(De)MAX77714 GUI定(Ding)义(Yi)。(?)
使(Shi)用(Yong)“(?)GUI导(Dao)入(Ru)/导(Dao)出(Chu)”(?)选(Xuan)项(Xiang)卡(Ka)，(?)可(Ke)以(Yi)将(Jiang)寄(Ji)存(Cun)器(Qi)值(Zhi)导(Dao)出(Chu)为(Wei)Excel文(Wen)件(Jian)。(?)
在(Zai)展(Zhan)示(Shi)如(Ru)何(He)使(Shi)用(Yong)GUI EVKIT之(Zhi)前(Qian)，(?)我(Wo)们(Men)需(Xu)要(Yao)先(Xian)知(Zhi)道(Dao)哪(Na)些(Xie)寄(Ji)存(Cun)器(Qi)对(Dui)于(Yu)定(Ding)制(Zhi)启(Qi)动(Dong)很(Hen)重(Zhong)要(Yao)。(?)
MAX77714寄(Ji)存(Cun)器(Qi)详(Xiang)细(Xi)信(Xin)息(Xi)
降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)
每(Mei)个(Ge)降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)实(Shi)例(Li)都(Du)有(You)三(San)个(Ge)相(Xiang)关(Guan)寄(Ji)存(Cun)器(Qi)（(?)SDx_CNFG1、(?)SDx_CNFG2和(He)SDx_CNFG3）(?)，(?)用(Yong)于(Yu)定(Ding)义(Yi)启(Qi)动(Dong)电(Dian)压(Ya)、(?)斜(Xie)坡(Po)速(Su)率(Lu)和(He)工(Gong)作(Zuo)模(Mo)式(Shi)。(?)
CNFG1用(Yong)于(Yu)设(She)置(Zhi)输(Shu)出(Chu)电(Dian)压(Ya)，(?)7位(Wei)至(Zhi)8位(Wei)位(Wei)域(Yu)如(Ru)下(Xia)：(?)
VSD0 = 0.26 V + ((SD0VOUT[6:0] - 1) ×(?) 10 mV) 范(Fan)围(Wei)为(Wei)0.26 V到(Dao)1.56 V
VSD1 = 0.26 V + ((SD1VOUT[6:0] - 1) ×(?) 10 mV) 范(Fan)围(Wei)为(Wei)0.26 V到(Dao)1.56 V
VSD2 = 0.6 V + (SD2VOUT[7:0] ×(?) 6.25 mV) 范(Fan)围(Wei)为(Wei)0.6 V到(Dao)2.194 V
VSD3 = 0.6 V + (SD3VOUT[7:0] ×(?) 12.5 mV) 范(Fan)围(Wei)为(Wei)0.6 V到(Dao)3.7875 V
CNFG2和(He)CNFG3寄(Ji)存(Cun)器(Qi)用(Yong)于(Yu)选(Xuan)择(Ze)斜(Xie)坡(Po)速(Su)率(Lu)（(?)2.5 mV/μ(?)s或(Huo)10 mV/μ(?)s）(?)、(?)使(Shi)能(Neng)/禁(Jin)用(Yong)主(Zhu)动(Dong)放(Fang)电(Dian)、(?)使(Shi)能(Neng)/禁(Jin)用(Yong)跳(Tiao)频(Pin)模(Mo)式(Shi)、(?)选(Xuan)择(Ze)响(Xiang)应(Ying)时(Shi)间(Jian)和(He)过(Guo)压(Ya)阈(Yu)值(Zhi)。(?)
LDO电(Dian)压(Ya)调(Diao)节(Jie)器(Qi)
每(Mei)个(Ge)LDO稳(Wen)压(Ya)器(Qi)实(Shi)例(Li)都(Du)有(You)两(Liang)个(Ge)相(Xiang)关(Guan)寄(Ji)存(Cun)器(Qi)（(?)LDO_CNFG1_Lx和(He)LDO_CNFG2_Lx）(?)。(?)
CNFG1设(She)置(Zhi)输(Shu)出(Chu)电(Dian)压(Ya)：(?)
LDO0和(He)LDO1为(Wei)0.8 V至(Zhi)2.375 V。(?)
VLDO = 0.8 V + (VOUT_LDO[5:0] ×(?) 25 mV)
LDO2、(?)LDO3、(?)LDO5、(?)LDO6、(?)LDO7、(?)LDO8为(Wei)0.8 V至(Zhi)3.95 V
VLDO = 0.8 V + (VOUT_LDO[5:0] ×(?) 50 mV)
LDO4为(Wei)0.4 V至(Zhi)1.275 V
VLDO = 0.4 V + (VOUT_LDO[5:0] ×(?) 12.5 mV)
CNFG2用(Yong)于(Yu)使(Shi)能(Neng)/禁(Jin)用(Yong)过(Guo)压(Ya)箝(Qian)位(Wei)、(?)使(Shi)能(Neng)/禁(Jin)用(Yong)自(Zi)动(Dong)低(Di)功(Gong)耗(Hao)模(Mo)式(Shi)、(?)使(Shi)能(Neng)/禁(Jin)用(Yong)主(Zhu)动(Dong)放(Fang)电(Dian)、(?)选(Xuan)择(Ze)快(Kuai)速(Su)/慢(Man)速(Su)启(Qi)动(Dong)。(?)
GPIO
每(Mei)个(Ge)GPIO实(Shi)例(Li)都(Du)有(You)一(Yi)个(Ge)相(Xiang)关(Guan)寄(Ji)存(Cun)器(Qi)CNFG_GPIOx，(?)该(Gai)器(Qi)件(Jian)负(Fu)责(Ze)选(Xuan)择(Ze)方(Fang)向(Xiang)GPO/GPI、(?)输(Shu)出(Chu)类(Lei)型(Xing)（(?)开(Kai)漏(Lou)/推(Tui)挽(Wan)）(?)和(He)输(Shu)出(Chu)驱(Qu)动(Dong)电(Dian)平(Ping)（(?)若(Ruo)为(Wei)GPO）(?)，(?)以(Yi)及(Ji)输(Shu)入(Ru)驱(Qu)动(Dong)电(Dian)平(Ping)、(?)中(Zhong)断(Duan)行(Xing)为(Wei)和(He)去(Qu)抖(Dou)动(Dong)配(Pei)置(Zhi)（(?)若(Ruo)为(Wei)GPI）(?)。(?)
FPS
时(Shi)序(Xu)由(You)xxxFPS寄(Ji)存(Cun)器(Qi)定(Ding)义(Yi)，(?)LDO0FPS至(Zhi)LDO8FPS用(Yong)于(Yu)线(Xian)性(Xing)稳(Wen)压(Ya)器(Qi)，(?)SD0FPS至(Zhi)SD3FPS用(Yong)于(Yu)降(Jiang)压(Ya)转(Zhuan)换(Huan)器(Qi)，(?)GPIO0FPS、(?)GPIO1FPS、(?)GPIO2FPS、(?)GPIO7FPS用(Yong)于(Yu)GPIO，(?)RSTIOFPS用(Yong)于(Yu)复(Fu)位(Wei)。(?)
FPS[2:0]用(Yong)于(Yu)设(She)置(Zhi)关(Guan)断(Duan)时(Shi)隙(Xi)（(?)SLOT0至(Zhi)SLOT7）(?)
FPS[5:3]用(Yong)于(Yu)设(She)置(Zhi)上(Shang)电(Dian)时(Shi)隙(Xi)（(?)SLOT0至(Zhi)SLOT7）(?)
FPS[7:6]用(Yong)于(Yu)设(She)置(Zhi)分(Fen)配(Pei)的(De)时(Shi)序(Xu)控(Kong)制(Zhi)器(Qi)（(?)FPS0、(?)FPS1）(?)
FPS0由(You)EN0使(Shi)能(Neng)，(?)FPS1由(You)EN1使(Shi)能(Neng)
上(Shang)电(Dian)和(He)关(Guan)断(Duan)时(Shi)隙(Xi)的(De)大(Da)小(Xiao)可(Ke)以(Yi)利(Li)用(Yong)MSTR_PU_PD寄(Ji)存(Cun)器(Qi)指(Zhi)定(Ding)：(?)
MSTR_PU_PD[2:0]用(Yong)于(Yu)指(Zhi)定(Ding)关(Guan)断(Duan)时(Shi)隙(Xi)，(?)MSTR_PU_PD[6:4]用(Yong)于(Yu)指(Zhi)定(Ding)上(Shang)电(Dian)时(Shi)隙(Xi)
可(Ke)能(Neng)的(De)步(Bu)长(Chang)为(Wei)：(?)31 μ(?)s、(?)63 μ(?)s、(?)127 μ(?)s、(?)253 μ(?)s、(?)508 μ(?)s、(?)984 μ(?)s、(?)1936 μ(?)s、(?)3904 μ(?)s，(?)MAX77714EWC+的(De)默(Mo)认(Ren)值(Zhi)为(Wei)3904 μ(?)s。(?)
GUI实(Shi)际(Ji)应(Ying)用(Yong)
在(Zai)图(Tu)5中(Zhong)，(?)已(Yi)利(Li)用(Yong)GUI将(Jiang)SD0的(De)输(Shu)出(Chu)电(Dian)压(Ya)修(Xiu)改(Gai)为(Wei)0.7 V。(?)
图(Tu)5.用(Yong)于(Yu)修(Xiu)改(Gai)SD0电(Dian)压(Ya)的(De)GUI。(?)
SD0上(Shang)电(Dian)和(He)关(Guan)断(Duan)时(Shi)序(Xu)已(Yi)修(Xiu)改(Gai)为(Wei)时(Shi)隙(Xi)2（(?)图(Tu)6）(?)。(?)
图(Tu)6.用(Yong)于(Yu)修(Xiu)改(Gai)SDO时(Shi)隙(Xi)号(Hao)的(De)GUI。(?)
GPIO4已(Yi)配(Pei)置(Zhi)为(Wei)推(Tui)挽(Wan)输(Shu)出(Chu)，(?)驱(Qu)动(Dong)电(Dian)平(Ping)为(Wei)高(Gao)电(Dian)平(Ping)（(?)图(Tu)7）(?)。(?)
图(Tu)7.用(Yong)于(Yu)配(Pei)置(Zhi)GPIO4的(De)GUI。(?)
最(Zui)后(Hou)，(?)使(Shi)用(Yong)“(?)导(Dao)入(Ru)/导(Dao)出(Chu)”(?)选(Xuan)项(Xiang)卡(Ka)将(Jiang)修(Xiu)改(Gai)后(Hou)的(De)寄(Ji)存(Cun)器(Qi)值(Zhi)导(Dao)出(Chu)为(Wei)Excel文(Wen)件(Jian)（(?)图(Tu)8）(?)。(?)
图(Tu)8.用(Yong)于(Yu)导(Dao)出(Chu)寄(Ji)存(Cun)器(Qi)值(Zhi)的(De)GUI。(?)
以(Yi)下(Xia)是(Shi)生(Sheng)成(Cheng)的(De).csv文(Wen)件(Jian)（(?)图(Tu)9）(?)。(?)
图(Tu)9.MAX77714 .csv文(Wen)件(Jian)的(De)格(Ge)式(Shi)。(?)
请(Qing)注(Zhu)意(Yi)，(?)如(Ru)果(Guo)必(Bi)须(Xu)在(Zai)上(Shang)电(Dian)期(Qi)间(Jian)对(Dui)连(Lian)接(Jie)到(Dao)I2C的(De)其(Qi)他(Ta)器(Qi)件(Jian)进(Jin)行(Xing)编(Bian)程(Cheng)，(?)用(Yong)户(Hu)可(Ke)以(Yi)使(Shi)用(Yong)相(Xiang)同(Tong)格(Ge)式(Shi)将(Jiang)其(Qi)他(Ta)命(Ming)令(Ling)附(Fu)加(Jia)到(Dao).csv文(Wen)件(Jian)。(?)
从(Cong).csv文(Wen)件(Jian)创(Chuang)建(Jian)I2C主(Zhu)机(Ji)固(Gu)件(Jian)
您(Nin)可(Ke)以(Yi)点(Dian)击(Ji)此(Ci)处(Chu)获(Huo)取(Qu)MAX28200 GUI，(?)按(An)照(Zhao)以(Yi)下(Xia)步(Bu)骤(Zhou)可(Ke)对(Dui)器(Qi)件(Jian)进(Jin)行(Xing)编(Bian)程(Cheng)：(?)
1. 从(Cong).csv文(Wen)件(Jian)构(Gou)建(Jian).hex文(Wen)件(Jian)（(?)图(Tu)10）(?)。(?)
2. 对(Dui)器(Qi)件(Jian)进(Jin)行(Xing)编(Bian)程(Cheng)（(?)图(Tu)11和(He)图(Tu)12）(?)。(?)
图(Tu)10.从(Cong)原(Yuan)始(Shi).csv文(Wen)件(Jian)构(Gou)建(Jian).hex文(Wen)件(Jian)。(?)
图(Tu)11.使(Shi)用(Yong)选(Xuan)定(Ding)脚(Jiao)本(Ben)对(Dui)器(Qi)件(Jian)进(Jin)行(Xing)编(Bian)程(Cheng)。(?)
图(Tu)12.使(Shi)用(Yong)数(Shu)据(Ju)模(Mo)式(Shi)对(Dui)器(Qi)件(Jian)进(Jin)行(Xing)编(Bian)程(Cheng)。(?)
对(Dui)建(Jian)议(Yi)解(Jie)决(Jue)方(Fang)案(An)进(Jin)行(Xing)测(Ce)试(Shi)
一(Yi)旦(Dan)在(Zai)上(Shang)电(Dian)时(Shi)使(Shi)用(Yong)MAX77714.hex进(Jin)行(Xing)编(Bian)程(Cheng)，(?)P0.3就(Jiu)会(Hui)置(Zhi)为(Wei)低(Di)电(Dian)平(Ping)，(?)以(Yi)将(Jiang)MAX77714 I2C线(Xian)连(Lian)接(Jie)到(Dao)MAX28200，(?)并(Bing)使(Shi)用(Yong)新(Xin)值(Zhi)对(Dui)SD0和(He)GPIO4寄(Ji)存(Cun)器(Qi)进(Jin)行(Xing)编(Bian)程(Cheng)（(?)图(Tu)13）(?)。(?)
图(Tu)13.MAX77714 SD0和(He)GPIO4寄(Ji)存(Cun)器(Qi)已(Yi)用(Yong)新(Xin)值(Zhi)进(Jin)行(Xing)编(Bian)程(Cheng)。(?)
现(Xian)在(Zai)，(?)当(Dang)MAX77714使(Shi)能(Neng)时(Shi)，(?)EN0置(Zhi)为(Wei)高(Gao)电(Dian)平(Ping)，(?)SD0将(Jiang)按(An)照(Zhao)编(Bian)程(Cheng)设(She)定(Ding)，(?)以(Yi)0.7 V在(Zai)时(Shi)隙(Xi)2上(Shang)电(Dian)。(?)图(Tu)14为(Wei)寄(Ji)存(Cun)器(Qi)写(Xie)入(Ru)之(Zhi)前(Qian)上(Shang)电(Dian)(a)和(He)寄(Ji)存(Cun)器(Qi)写(Xie)入(Ru)之(Zhi)后(Hou)上(Shang)电(Dian)(b)的(De)情(Qing)况(Kuang)。(?)
图(Tu)14.SDO在(Zai)寄(Ji)存(Cun)器(Qi)写(Xie)入(Ru)之(Zhi)前(Qian)和(He)之(Zhi)后(Hou)上(Shang)电(Dian)。(?)(a)寄(Ji)存(Cun)器(Qi)写(Xie)入(Ru)之(Zhi)前(Qian)上(Shang)电(Dian)。(?)(b)寄(Ji)存(Cun)器(Qi)写(Xie)入(Ru)之(Zhi)后(Hou)上(Shang)电(Dian)。(?)
结(Jie)论(Lun)
MAX28200是(Shi)一(Yi)款(Kuan)颇(Po)具(Ju)吸(Xi)引(Yin)力(Li)的(De)微(Wei)控(Kong)制(Zhi)器(Qi)解(Jie)决(Jue)方(Fang)案(An)，(?)能(Neng)够(Gou)为(Wei)PMIC提(Ti)供(Gong)上(Shang)电(Dian)设(She)置(Zhi)。(?)此(Ci)过(Guo)程(Cheng)可(Ke)以(Yi)使(Shi)用(Yong)工(Gong)具(Ju)来(Lai)自(Zi)动(Dong)执(Zhi)行(Xing)，(?)无(Wu)需(Xu)设(She)计(Ji)人(Ren)员(Yuan)编(Bian)写(Xie)任(Ren)何(He)代(Dai)码(Ma)。(?)对(Dui)于(Yu)不(Bu)熟(Shu)悉(Xi)软(Ruan)件(Jian)的(De)硬(Ying)件(Jian)设(She)计(Ji)人(Ren)员(Yuan)来(Lai)说(Shuo)，(?)这(Zhe)是(Shi)一(Yi)个(Ge)非(Fei)常(Chang)方(Fang)便(Bian)的(De)解(Jie)决(Jue)方(Fang)案(An)。(?)微(Wei)控(Kong)制(Zhi)器(Qi)就(Jiu)像(Xiang)黑(Hei)匣(Xia)子(Zi)一(Yi)样(Yang)，(?)工(Gong)作(Zuo)时(Shi)无(Wu)需(Xu)固(Gu)件(Jian)设(She)计(Ji)人(Ren)员(Yuan)参(Can)与(Yu)。(?)设(She)计(Ji)人(Ren)员(Yuan)可(Ke)以(Yi)使(Shi)用(Yong)针(Zhen)对(Dui)特(Te)定(Ding)应(Ying)用(Yong)定(Ding)制(Zhi)的(De)现(Xian)成(Cheng)器(Qi)件(Jian)来(Lai)达(Da)到(Dao)集(Ji)成(Cheng)目(Mu)标(Biao)。(?)
（(?)作(Zuo)者(Zhe)：(?)Franco Contadini，(?)主(Zhu)管(Guan)工(Gong)程(Cheng)师(Shi)）(?)
免(Mian)责(Ze)声(Sheng)明(Ming)：(?)本(Ben)文(Wen)为(Wei)转(Zhuan)载(Zai)文(Wen)章(Zhang)，(?)转(Zhuan)载(Zai)此(Ci)文(Wen)目(Mu)的(De)在(Zai)于(Yu)传(Chuan)递(Di)更(Geng)多(Duo)信(Xin)息(Xi)，(?)版(Ban)权(Quan)归(Gui)原(Yuan)作(Zuo)者(Zhe)所(Suo)有(You)。(?)本(Ben)文(Wen)所(Suo)用(Yong)视(Shi)频(Pin)、(?)图(Tu)片(Pian)、(?)文(Wen)字(Zi)如(Ru)涉(She)及(Ji)作(Zuo)品(Pin)版(Ban)权(Quan)问(Wen)题(Ti)，(?)请(Qing)联(Lian)系(Xi)小(Xiao)编(Bian)进(Jin)行(Xing)处(Chu)理(Li)。(?)
推(Tui)荐(Jian)阅(Yue)读(Du)：(?)
