FreeCalypso > hg > freecalypso-hwlab

annotate doc/DUART28-EEPROM-config @ 121:87b34a244901

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fc-simtool: pb-erase-range command implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 28 Jan 2021 05:04:16 +0000
parents f0b0970fbe2e
children df4bf4e06221
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
78
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 The EEPROM on the DUART28 adapter board has two valid configurations: DUART28C
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 and DUART28S. As of this writing the S configuration is the default shipping
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 one, but this situation may change in the future. The difference between the
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 two configs is in the USB VID:PID presented by the USB device, and this USB ID
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 difference has the following practical impact:
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 * The C configuration presents a custom USB ID and requires a custom patch to
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 the Linux kernel ftdi_sio driver in order to work - without this ftdi_sio
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 driver patch it won't work at all. But if you do go through the pain of
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 applying the needed patch to your Linux kernel ftdi_sio driver, the reward
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 is that you get not only the two Calypso UARTs, but also working boot control
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 outputs.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 * The S configuration presents the default FT2232x USB ID and is therefore
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 supported out of the box by the standard Linux ftdi_sio driver without needing
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 any patches. However, the adapter's CTL1 and CTL2 outputs cannot be used in
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 this configuration (they will be bogusly asserted whenever Channel B ttyUSB
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 device is opened), and thus they must be left unconnected, and you don't get
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 to play with the remote boot control feature.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 The physical hardware is identical between the two configurations, only the
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 EEPROM programming changes, thus end users need to be able to switch freely
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 between the two EEPROM configs as they wish. This article explains how to
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 program the EEPROM back and forth between the two configs.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 Determining your current DUART28 config
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 =======================================
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 Connect the USB cable between your DUART28 board and your Linux host, and
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 observe dmesg output. If your DUART28 board is in the C configuration, it will
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 present as USB ID 0403:7152, and if it is in the S config, it will present as
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 USB ID 0403:6010. You can also see these USB IDs with lsusb. The product ID
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 string is also programmed as "DUART28C" or "DUART28S".
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 Converting from DUART28S to DUART28C
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 ====================================
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 If your DUART28 board is currently in the S config, its USB ID will be
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 0403:6010, which is the default ID for FTDI's two-channel FT2232x family.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 Because it is the standard default, there are plenty of other gadgets using the
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 same ID - thus you need to ensure that you have no other USB devices with the
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 same ID connected to your system during the reprogramming operation. Run lsusb
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 and ensure that you see only one USB device with ID 0403:6010. Ensure that this
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 one device really is your DUART28 board: unplug that USB cable and make sure
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 that the device disappears, plug it back in and make sure that it reappears.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 One you have confirmed that you won't inadvertently hit some other FT2232x
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 device, execute the actual programming command as follows (from the top
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 directory of this code repository):
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 ftee-gen2232c eeproms/duart28c $Serial | fteeprom-prog i:0x0403:0x6010
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 (See FTDI-EEPROM-tools article for other ways to specify the target device to
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 fteeprom-prog.)
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 Replace the $Serial metavariable with the 3-digit serial number of your DUART28
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 adapter board as it appears on the factory serial number sticker.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 After this operation completes successfully, unplug and replug the USB cable
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 between the DUART28 board and your host - the adapter should now show up with
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 USB ID 0403:7152.
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 Converting from DUART28C to DUART28S
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 ====================================
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 If your DUART28 board is currently in the C config, its USB ID will be
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 0403:7152, which is a private ID that belongs to us and should not be used by
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 other parties. The reverse conversion command is as follows:
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69
f0b0970fbe2e doc/DUART28-EEPROM-config article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 ftee-gen2232c eeproms/duart28s $Serial | fteeprom-prog i:0x0403:0x7152