Are your ESP flash attempts failing? Or perhaps not working at all anymore? I have been there. Just when I was ready to give up…after many, many flash attempts, a flash will actually succeed. You think everything is good again, but the problem just keeps coming back…. What is wrong? Is this just a cheap Chinese trinket? An illusion of the Holy Grail? The ESP specs look great.
With such a cheap price tag that sucked you in? Or is there something your doing wrong? What many of us have experienced wit these ESP modules, especially those that like to tinker and flash often, is the very low flash cycle count that the memory chips shipped with many of these modules will tolerate before failing. In my experience, flash failures start after only 20 flash cycles or so. The good news is that the memory chips are not difficult to replace. And they are cheap when you order them with free shipping from the slow boat from China.
You should be able to find them on AliExpress or your other favorite source. Here are some recent quotes for the different chips found on ESP modules:. From looking at the firmware binary header, it looks like the flashes are made for a KByte flash chip byte 3 upper 4 bits are 0. That is what I am using to replace the flash chip when they start to fail intolerably.
I have recently replaced a 4MByte flash chip with a KByte component, it worked flawlessly. With the same amount of space free for the application. I have been using the ESP modules. The only added step needed for flash chip replacement from an ESP is that the golden metal case must be removed to gain access to the SPI memory chip. This is not impossible, you just have to take your time, be patient, and careful.
I use a razor blade to pop the cover off. You just have to score the crease where the metal case meets the PCB. Only do this on the edge that is away from the PCB antenna.
This minimizes the risk of damaging something. Eventually, the blade will breach the case bonding. When it starts to give, the rest of the cover will soon separate from the module — cover removed! Take it slow so you do not cut yourself, damage the module, or snap the blade.
I use a blade with a safety cover. It only require minutes to remove the cover in this manner. I have done it to two modules so far with no damage incurred. I have seen some folks use a heat gun to remove the cover.
This is too risky in my opinion. The SPI memory chip will be the obvious 8-pin device. Not to worry. While the ESP would be very challenging to remove, not so with the memory chip.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.
Download the latest stable release from here. Please report any bugs in issues. Do not include csPin if using the default slave select pin for your board. Also make sure to include flash. This enables the library to detect the type of flash chip installed and load the right parameters. As of v3. The library has Address overflow enabled by default - i.
All write functions have Error checking turned on by default - i. Also make sure to include fram. This enables the library to detect the type of fram chip installed and load the right parameters. The methods in SPIFram are not final and subject to change over the next few revisions. Please follow the issue template that show up at the link. Skip to content.
Adding a new part: the Winbond 25Q32
Please contact Winbond for details. Upon power-up or at power-down, the W25Q32BV willfeature is available upon special order. More thanBlockWinbond for ordering information. Some package types are special orders, please contact Winbond for ordering information.
Upon power-up or atcontact Winbond for details. Winbond customersindemnify Winbond for any damages resulting from such improper use or sales. The codeprocessors, so long as proper care is given to the pins used in the SPI interface to the Winbond flashpulled high to ensure that the feature is not enabled during operation. Winbond W25X16 Pin. WR SA Winbond Chip ID. Winbond Chip. WF 5. Contact the local Winbond Sales Representative or Distributor for availability information.
Initial issue ISD Winbond products are not designed, intended, authorizedor sustain life. Furthermore, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or.
Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damagesFLOW Furthermore, Winbond products are not intended for applications wherein failure of Winbond products couldcould occur.So I decided to upgrade them from K to 4M!
I had actually planned to do this a while back, but never got around to doing it. I had bought the flash off Aliexpress a while back and got to me like 2 days ago. One tricky part I found was that the pads are not long enough to accommodate the new flash length, so I had to improvise and bend the pins inwards so that I could solder the new flash down. After all of them, I tested them with the Arduino ESP Library which can check the flash size, and they all reported the correct size!
So why go to the effort to upgrade the flash? Well because the ESP has the ability to take Arduino Sketches over the network, rather than serial. But to do that, the flash needs to be large enough to have 2 sketches on it at once, one to be running, and one backup in case the main one fails, and then also some more info for how the OTA works I am not too familiar with the software side of things.
With 4MB, its easily able to handle the new requirements. I also upgraded my monitor servo controller with 4MB too, so I can now remotely update its firmware rather than having to upload it with serial. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Skip to content Menu About.
One side lifted off. The Chip desoldered from the board. Empty pads from desoldering the flash One tricky part I found was that the pads are not long enough to accommodate the new flash length, so I had to improvise and bend the pins inwards so that I could solder the new flash down.
Top View when installed. Share this: Twitter Facebook. Like this: Like Loading Leave a Reply Cancel reply Enter your comment here Fill in your details below or click an icon to log in:. Email required Address never made public. Name required.Package: sop. Supply Voltage: International standard. Dissipation Power: International standard. Operating Temperature: International standard.
Upgrading the Flash on ESP8266
Dear Buyers, Please pay attention to the following instruction upon receipt our chips. The BGA chips you buy from our company are of high technology and as precise as nanometer.
For small quantity of chips, they are exposed to the air after being taken out from package. So they probably will adhere to some humidity. The soldering process is complicated. As BGA chips are fragile, complicatedly structured, with numerous balls, any slightly faulty positioning, careless temperature-control, or incomplete cleaning PCB boards will result in insufficient soldering or missing soldering.
The chips will, as a result, die. BGA chips are easily get broken by improper soldering.
Before buying, you should consider 3 points:. If you are not confident to solder it, please don't buy. If you find any discrepancy, pls be free to contact us for immediate solution. If you receive a wrong item from us, we will send you free replacement. If you don't receive your item in 60 days, we will send you free replacement or refund you.
If you receive short shipment incomplete orderwe will send you free replacement or refund you. Please remember, if you want to solder the chip, it means that you accept it without disagreement. Once the chip is soldered, it can't be replaced or refunded.
Returns of any part that has been used on machine will not be acceptable.Whiteboard Wednesday: Memory Extraction from SPI Flash Devices
This item will be shipped by Registered Mail within 2 working days after full payment. If you want to get it fast, please choose Expedited Shipping.Got a Raspberry Pi?
The Winbond 25Q is a really cool part : high capacity 16 MBytesvery fast, good support for many standard instructions, supports wide bus modes But it can be expensive depending on the application. I found the little sister 25Q32 : I use 6 of them on each board of a project. I expect it to be almost exactly the same as the 25Q but with only 4MBytes so the board has 24MB, still nice.
I got them off eBay and received them. Now comes the time to try them! As I am writing a detailed tutorial, I want to use this project log to show how to add a part to the SPI flasher so others can add their own and as much as possible provide feedback so I can make this system better, for me and everybody else.
Google gives the right PDF on the first result when I type "datasheet 25q32bvsig". The 25Q32 follows all the conventions so it's safe and easy to use with the flasher. The PCBs need pins too: these come from special DIP8 sockets that I hacked a bit and provides a sturdy base, but you'll use your own parts. The software tools are installed in the Apache data directory.
I go there to execute one of the test programs:. I can now copy the extracted signature very similar to the 25Q and paste into the chips library :. A deeper reading of the datasheet lets me complete the instruction table, which is not as extensive as the 25Q but comparable to the other 32Mb parts.
Create an account to leave a comment. Already have an account? Log In. Yes, delete it Cancel. About Us Contact Hackaday. By using our website and services, you expressly agree to the placement of our performance, functionality, and advertising cookies.
Learn More. First, let's get the datasheet! Let's analyse the data : The device operates on a single 2. This time I put the capacitor directly close to the chip's power supply pins. Now I can test it! My IP address is Become a Hackaday. Sign up. Ok, I agree.Winbond is the 1 supplier of Serial Flash products in the industry and is the largest unit supplier of NOR flash memories.
These products in the flash memory family are used in computer, communication, consumer, mobile, automotive and industrial applications.
Product Category. You are now leaving our web site. The web site you wish to link to is owned or operated by an entity other than Winbond Electronics Corporation. We do not control this third party web site. WEC provides links to other sites solely as a convenience for you. WEC does not endorse or make any representations or warranties about the contents, products or services available there at.
Learn more. Serial NOR Flash. Authentication Flash.
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