Scriba - Thingino Programming App

Scriba is a version of SNANDer that doesn't include any code that isn't used in Linux. It has been reorganized and streamlined to serve one sole purpose: to work with flash chips in IP cameras that are used with the Thingino project.

Scriba works well with the first generation of CH341A programmers that have been modified to work at 3.3 volts. You can find more information about the necessary change at https://github.com/themactep/thingino-firmware/wiki/CH341A-Programmer.

Building

Prerequisites

• GCC compiler
• libusb-1.0 development files
• make

Build Options

Standard build (dynamically linked)

make

Static build (includes libusb)

make static

Install

sudo make install

Configuration

USB Permissions

The udev rule 40-persistent-ch341a.rules grants access to CH341A USB devices.

Usage

scriba [options]

Automation:
  -R <file>      Read chip (read twice and compare)
  -W <file>      Write chip (erase + write + verify)

Single operations:
  -i             Read chip ID
  -e             Erase chip
  -r <file>      Read chip to file
  -w <file>      Write file to chip
  -v             Verify after write

Granularity:
  -a <address>   Set address
  -l <bytes>     Set length

SPI NAND:
  -d             Disable internal ECC
  -o <bytes>     Set OOB size
  -I             Ignore ECC errors
  -k             Skip BAD pages

EEPROM:
  -E <chip>      Select EEPROM type
  -8             Set 8-bit organization
  -f <bits>      Set address size
  -s <bytes>     Set page size

General:
  -h             Display help
  -L             List supported chips

Examples

Get flash info

scriba -i

Read and save flash

scriba -r output.bin

Write and verify

scriba -w data.bin -v

Write chip (automatic erase + write + verify)

scriba -W firmware.bin

Read chip (read twice and compare)

scriba -R verified_backup.bin

EEPROM operations

scriba -E 93c46 -r eeprom.bin

Authors

Original code by McMCC, modified by Droid-MAX, modified by Paul Philippov.