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Kenneth: /* FTDI Programming */
2020-11-05T20:14:19Z
<p><span dir="auto"><span class="autocomment">FTDI Programming</span></span></p>
<p><b>New page</b></p><div>== FTDI Driver ==<br />
<br />
To detect the FTDI device, install the extra module package:<br />
apt install linux-image-extra-`uname -r`<br />
<br />
Then either reboot, or manually load the module<br />
modprobe ftdi_sio<br />
<br />
Find with:<br />
/dev/ttyUSB0<br />
<br />
== FTDI Programming ==<br />
<br />
apt install ftdi-eeprom<br />
<br />
modprobe -r ftdi_sio<br />
ftdi_eeprom --read-eeprom asmith.conf<br />
<br />
modprobe ftdi_sio<br />
tio /dev/ttyUSB0<br />
<br />
<br />
udevadm info -a -p $(udevadm info -q path -n /dev/ttyUSB0) | less<br />
<br />
ATTRS{idProduct}=="6011"<br />
ATTRS{idVendor}=="0403"<br />
<br />
<br />
---<br />
<br />
mydevice.conf:<br />
<pre><br />
vendor_id=0x0403<br />
product_id=0x6011<br />
<br />
max_power=0<br />
<br />
manufacturer="Aznot"<br />
product="Aznot Device"<br />
serial="1944d0021"<br />
<br />
filename="eeprom.new"<br />
</pre><br />
<br />
---<br />
<br />
<br />
<pre><br />
# ftdi_eeprom --read-eeprom test.conf<br />
<br />
FTDI eeprom generator v0.17<br />
(c) Intra2net AG and the libftdi developers <opensource@intra2net.com><br />
FTDI read eeprom: 0<br />
EEPROM size: 128<br />
FTDI close: 0<br />
</pre><br />
<br />
<br />
---<br />
<br />
<pre><br />
# ftdi_eeprom --erase-eeprom asmith.conf<br />
<br />
FTDI eeprom generator v0.17<br />
(c) Intra2net AG and the libftdi developers <opensource@intra2net.com><br />
FTDI read eeprom: 0<br />
EEPROM size: -1<br />
FTDI erase eeprom: 0<br />
Used eeprom space: 224 bytes<br />
Writing to file: eeprom.new<br />
FTDI close: 0<br />
</pre><br />
<br />
---<br />
<br />
<pre><br />
# ftdi_eeprom --flash-eeprom asmith.conf<br />
<br />
FTDI eeprom generator v0.17<br />
(c) Intra2net AG and the libftdi developers <opensource@intra2net.com><br />
FTDI read eeprom: 0<br />
EEPROM size: -1<br />
Used eeprom space: 96 bytes<br />
FTDI write eeprom: 0<br />
Writing to file: eeprom.new<br />
FTDI close: -1<br />
</pre><br />
<br />
---<br />
<br />
<pre><br />
# ftdi_eeprom --flash-eeprom asmith.conf<br />
<br />
FTDI eeprom generator v0.17<br />
(c) Intra2net AG and the libftdi developers <opensource@intra2net.com><br />
FTDI read eeprom: 0<br />
EEPROM size: 256<br />
Used eeprom space: 224 bytes<br />
FTDI write eeprom: 0<br />
Writing to file: eeprom.new<br />
FTDI close: 0<br />
</pre><br />
<br />
---<br />
<br />
<pre><br />
[18849.738246] usb 1-5: new high-speed USB device number 6 using xhci_hcd<br />
[18849.880956] usb 1-5: New USB device found, idVendor=0403, idProduct=6011<br />
[18849.880957] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0<br />
[18849.880958] usb 1-5: Product: Aznot Device<br />
[18849.880959] usb 1-5: Manufacturer: Aznot<br />
[18849.882541] ftdi_sio 1-5:1.0: FTDI USB Serial Device converter detected<br />
[18849.882555] usb 1-5: Detected FT4232H<br />
[18849.882635] usb 1-5: FTDI USB Serial Device converter now attached to ttyUSB0<br />
[18849.883942] ftdi_sio 1-5:1.1: FTDI USB Serial Device converter detected<br />
[18849.883953] usb 1-5: Detected FT4232H<br />
[18849.884028] usb 1-5: FTDI USB Serial Device converter now attached to ttyUSB1<br />
[18849.885338] ftdi_sio 1-5:1.2: FTDI USB Serial Device converter detected<br />
[18849.885349] usb 1-5: Detected FT4232H<br />
[18849.885423] usb 1-5: FTDI USB Serial Device converter now attached to ttyUSB2<br />
[18849.886763] ftdi_sio 1-5:1.3: FTDI USB Serial Device converter detected<br />
[18849.886779] usb 1-5: Detected FT4232H<br />
[18849.886866] usb 1-5: FTDI USB Serial Device converter now attached to ttyUSB3<br />
</pre><br />
<br />
---<br />
<br />
<blockquote><br />
that means that the EEPROM is erased (all 0xff);<br />
see ftdi_read_eeprom() in ftdi.c: "Guesses size of eeprom ... will not <br />
work with blank eeprom"<br />
<br />
> Checksum Error: aaaa 0000<br />
> Malloc failed, aborting<br />
<br />
these errors follow from EEPROM size being -1<br />
<br />
with an erased EEPROM the FTDI chip falls back to the default <br />
vendor:product (which is 0403:6011)<br />
</blockquote><br />
<br />
ref: [http://libftdi.141977.n3.nabble.com/Reading-Writing-FT4232-EEPROM-td4025376.html]<br />
<br />
---<br />
<br />
Source:<br />
<br />
https://chromium.googlesource.com/chromiumos/third_party/libftdi/+/b790d38e9fac3e2144293a84bfc6de72b01a6c6d/src/ftdi.c<br />
<br />
=== UDEV ===<br />
<br />
See [[Linux/udev]]<br />
<br />
== Notes ==<br />
<br />
Barnaby Walters • How to read and program the EEPROM and configuration of FTDI FT2xx ICs on Linux or Mac OS X<br />
https://waterpigs.co.uk/articles/ftdi-configure-mac-linux/<br />
<br />
Flashing the FTDI EEPROM under linux · mozilla-sensorweb/sensorweb-wiki Wiki · GitHub<br />
https://github.com/mozilla-sensorweb/sensorweb-wiki/wiki/Flashing-the-FTDI-EEPROM-under-linux<br />
<br />
developer.intra2net.com Git - libftdi/blob - README.build<br />
http://developer.intra2net.com/git/?p=libftdi;a=blob;f=README.build<br />
<br />
<br />
After updating the EEPROM, you should unplug and replug the board.<br />
<br />
== keywords ==</div>
Kenneth