Questions tagged [spi]
Acronym for 'Serial Peripheral Interface' (SPI), the SPI bus is a synchronous serial communication interface specification used for short distance communication, primarily in embedded systems.
20 questions
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What are the general steps for reverse engineering a windows SPI driver for linux?
I have a fingerprint reader on my laptop that works under windows that doesn't show up on lsusb. Which means its not connected via USB. Through some digging around, I found out that this specific ...
2 votes
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Reverse engineering 18 Bytes protocol
I'm not really used to do algorithm reverse engineering, so I need some help It's a SPI communication between a STM and a wireless chip, hopefully the data were correctly acquired by the logic ...
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Contents of SPI NOR Flash appears scrambled
I'm working on reverse engineering a small household weather station, and I have successfully managed to extract the contents of a SPI NOR flash chip (using a modified version of this Python library ...
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2 votes
1 answer
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Where is the legacy BIOS stored on a UEFI system?
Where is the legacy BIOS (the 16 bit reset code that jumps to the POST entry point at F000:E05B and indeed POST itself and all the BIOS routines) originally stored on a UEFI system before it's ...
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3 votes
1 answer
277 views
Dump Headunit Software
I am a computer engineering senior and have a few quick questions i couldn't find any hits about online. I know just enough to get myself into trouble. Note: I have no specialized tools just a DMM and ...
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2 votes
1 answer
421 views
How to dump firmware from ATWINC1510
I got a ATWINC-1510 based device in front of me where I want to dump the firmware / flash contents from into a bin file. I know that the IC offers an SPI interface through the pins described in the ...
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1 vote
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293 views
SD card microcontroller
I have an SD card that I want to copy the firmware / memory from, my question is what pinouts do I connect to the SPI programmer and what are the commands to copy all of the firmware /memory. Thank ...
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2 votes
1 answer
833 views
SPI Flash, how to find the System memory addresses?
How to determine the System memory addresses of SPI Flash used in device running eCos operating system? For example, show flash command returns the following info: Flash Device Information: ...
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2 votes
1 answer
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Reverse Engineering BIOS (AMI A0.57)
Recently I got really interested in BIOS RE and I used chipsec to dump the content of SPI Flash ROM of my HP Omen Desktop PC to start my journey. But unlike older BIOSes, the binary file was pretty ...
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1 vote
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SPI device sniffing/mirror feature
I have an an embedded Linux ARM board, where an application opens the /dev/spidev1.0 device and constantly talks through with another MCU. Now, if I I try to look at what exchanges (that's what I'd ...
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Dump a MX25L12845E with a bus pirate and flashrom
I just received my buspirate, I now want to dump a flash (MX25L12845E). I tried the following command: flashrom -V -p buspirate_spi:dev=/dev/tty.usbserial-AJ02XILF,spispeed=1M -r MX25L128.bin -c ...
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8 votes
1 answer
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Reversing a 2.4Ghz Quadcopter remote control
TL;DR - I can't figure out why I'm failing to replicate the Quadcopter's remote control with, say, Arduino and NRF24L01 after eavesdropping the SPI commands on the remote control. So I got this ...
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I wonder about the SPI memory access [closed]
Good evening. I have a question. I have been using router has failed. I would like to proceed with the SPI memory dump. And I have connected to the SPI memory in the router board using the Bus ...
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2 votes
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723 views
Flashing NVRAM with U-Boot 1.2.0
I tried to program SPI Flash NVRAM (S25FL064A) from U-boot, but it not allow to write: tftp 0x80000100 nvram.bin cp.b 0x80000100 0x007b0000 0x00050000 There is no error shown after cp.b command, just ...
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1 vote
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Erase the data from the NVRAM
Cable modem SPI Flash memory have the following structure: 7 cmdlinepart partitions found on MTD device spansion partitions[0] = {.name = U-Boot, .offset = 0x00000000,.size = 0x00020000 (128K) } ...
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