[问答]

L6470在a和b桥上失步了

2070 L6470 寄存器

问答对人有帮助，内容完整，我也想知道答案 0 我一直在成功使用L6470驱动程序但是注意到我在a和b桥上失步了。数据表指出，当发生这种情况时，状态寄存器中的相应位置位。遗憾的是，数据表并未指出如何确定（如果我错过了它，那么通过.pdf文件进行搜索）。有时这些位在有或没有过流条件/欠压条件下被清除。我有兴趣了解失步的原因，所以我可以采取行动来防止这种情况发生。如果有人能指出我正确的方向，我会感恩。斯科特＃l6470＃step-loss 以上来自于谷歌翻译以下为原文 i've been using the L6470 driver successfully but have noticed that i get step loss on the a and b bridge. the data sheet indicates that when this happens the appropriate bits in the status register get set. unfortunately, the data sheet does not indicate how this is being determined (if it has i missed it and so has a search through the .pdf file). sometimes these bits are cleared with or without an over current condition/under voltage condition. i am interested in knowing the reason for the step loss so i can take action to prevent this. if anyone can point me in the right direction i'd be thankful. scott #l6470 #step-loss 0
2019-2-15 08:56:40　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 47 个回答。邀请回答 chm5 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 42 个回答。邀请回答 hgimtk 该类别下有 36 个回答。邀请回答 HengDu 该类别下有 31 个回答。邀请回答 hwp0415229 该类别下有 30 个回答。邀请回答可口可甜该类别下有 30 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 jiangwenwen 该类别下有 28 个回答。邀请回答 kingnet6688 该类别下有 28 个回答。邀请回答麻酱该类别下有 28 个回答。邀请回答 andyfly7 该类别下有 28 个回答。邀请回答 bluepink 该类别下有 27 个回答。邀请回答法规处发该类别下有 27 个回答。邀请回答 ldliu 该类别下有 27 个回答。邀请回答成长的小师弟该类别下有 27 个回答。邀请回答云汉007 该类别下有 27 个回答。邀请回答颜刚YanG 该类别下有 27 个回答。邀请回答柱子图宁该类别下有 27 个回答。邀请回答 uuwyfsdfsf 该类别下有 26 个回答。邀请回答举报望艳妮相关推荐 • L6470步损 1537 • L6470电机失步 2207 • L6470：连接Vreg和Vdd供电？ 3787 • L6470无法达到大于700步/秒的步进速率 3129 • 怎么使用SPI控制L6470 2422 • L6470始终处于步进模式 3456 • L6470怎么将电流限制在100mA 2687 • L6470无法进行微步定位 1890 • 请问L6470是否保持ABS_POS值的有效性？ 1657 • L6470/Soyo SY57ST56-1206A在高速时缺乏扭矩 1982 1个回答

答案对人有帮助，有参考价值 0 对于任何看起来我发现通过增加失速阈值电流（STALL_TH）的人来说，我可以消除步进损失。电流量（在示波器上测量）不超过设定的阈值，但不管我需要增加它。我不记得我测量的是什么或我最初设定的是什么，但它肯定小于一个放大器（通过测量）。我将阈值提高到2.5安培来处理这个问题。以上来自于谷歌翻译以下为原文 for what it is worth to anyone looking i found that by increasing the stall threshold current (STALL_TH) i could eliminate the step loss. the amount of current (as measured on a scope) did not exceed the programmed threshold but regardless i needed to increase it. i do not recall what i measured or what i had originally set it to but it was surely less than an amp (by measurement). i increased the threshold to 2.5 amps to take care of this.

2019-2-15 09:13:40 评论举报望艳妮