{"id":1985,"date":"2022-03-28T16:58:40","date_gmt":"2022-03-28T06:58:40","guid":{"rendered":"https:\/\/blog.hegars.com\/?p=1985"},"modified":"2022-04-20T19:29:45","modified_gmt":"2022-04-20T09:29:45","slug":"omron-nb-series-hmi-erasing-flash-fail","status":"publish","type":"post","link":"https:\/\/blog.hegars.com\/?p=1985","title":{"rendered":"OMRON NB-Series HMI “Erasing Flash Fail”"},"content":{"rendered":"\n

you my friend have a worn out FLASH chip<\/p>\n\n\n\n

\"\"
MT29F1G08ABADA – WP (TSOP48) 1Gb x8: NAND Flash Memory<\/figcaption><\/figure>\n\n\n\n

Diaganosis<\/h2>\n\n\n\n

I got a failed HMI from work where the HMI looks to be locked up which was only displaying the LOGO screen, uploading anything in application mode fails and trying to erase the flash in Download mode fails. My Guess is that its a worn out flash chip, so i’m going to try an remove\/test and replace it. <\/p>\n\n\n\n

I’ve seen the same wear issue in https:\/\/blog.hegars.com\/?p=1403<\/a> which is usally caused by excessive writes by logging.<\/p>\n\n\n\n

Trying to erase <\/h2>\n\n\n\n

Downloader Mode<\/h3>\n\n\n\n

Set device to Downloader Mode<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

NBManager<\/h3>\n\n\n\n

In NBManager<\/p>\n\n\n\n

System Operation <\/p>\n\n\n\n

Write the new Kernel works fine (which blocks does it reside?)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Write Root File System<\/p>\n\n\n\n

\"\"
spelling mistake<\/figcaption><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Error Management Details<\/h2>\n\n\n\n

“Over time, some memory locations may fail to program or erase properly. In order to
ensure that data is stored properly over the life of the NAND Flash device, the following
precautions are required”<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Flash Areas<\/h2>\n\n\n\n

Blocks<\/h3>\n\n\n\n

Block 0 – 0x0 thru 0x20fff<\/p>\n\n\n\n

Times 1024 blocks<\/p>\n\n\n\n

extending to 0x83fffff<\/p>\n\n\n\n

OTP<\/h3>\n\n\n\n

0x0 thru 0xf77f<\/p>\n\n\n\n

Uniquie ID<\/h3>\n\n\n\n

0x0 thru 0x1f<\/p>\n\n\n\n

Replacing Flash<\/h2>\n\n\n\n

Ordering<\/h3>\n\n\n\n

Desoldering <\/h3>\n\n\n\n

Reading Chip<\/h3>\n\n\n\n

New Chip FOB,<\/h3>\n\n\n\n
\"\"
1716 – so, Year 2017 Week 16<\/figcaption><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Might need to upgrade to the T56 to get the OPT scction done.<\/p>\n\n\n\n

Resoldering <\/h3>\n\n\n\n

Initial boot<\/h3>\n\n\n\n

Updating Root File System<\/h3>\n","protected":false},"excerpt":{"rendered":"

you my friend have a worn out FLASH chip Diaganosis I got a failed HMI from work where the HMI looks to be locked up which was only displaying the LOGO screen, uploading anything in application mode fails and trying to erase the flash in Download mode fails. My Guess is that its a worn […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1985"}],"collection":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1985"}],"version-history":[{"count":24,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1985\/revisions"}],"predecessor-version":[{"id":2064,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1985\/revisions\/2064"}],"wp:attachment":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}