Fender Bronco 40 support? about plug

[StillVoidingWarranties]

I read your documentation and the Bronco's amp name packets (0x1c 0x01 0x04) seem to differ from that as the Bronco sends the slot number as the 5th byte, not the 4th which is always 0. It does however send the amp names in bytes 16 - 32. I could decode them from a connection log, e.g. the factory presets were sent as

• Monster
• Redhead
• Rockin' Peg
• KGB800
• Bassman 300
• Bassman TV
• '59 Bassman 4x10
• Rumble Clean

Also, after the mysterious device with address 0x0a there is another packet for a device 0x0d containing only zeroes. After that the following packets seem to be the same as with Mustangs with the confirmation and effects settings.

bronco.txt

[offa]

"Invalid Cabinet" error (id 13).

Yes, Bronco cabinets are likely not complete mapped yet.

The controls of Plug don't seem to do anything, however.

UI needs some additional code too.

I have added some more code get some steps further:

• Amp ID on receive are mapped es above
• Sending one of these amp IDs uses a 59 Bassman (sending needs some more values to figure out)
• Amp UI should show the amp model as above
• Writing of those values to file throws an exception (since this needs some more work too)

Everything far from complete, but at least some steps.

[StillVoidingWarranties]

Amp ID on receive are mapped es above

I can confirm. As long as there are no invalid cab ids the connections are successful and show the correct id in the debug output.

Amp UI should show the amp model as above

When I connect with an amp model active other than the 59 Bassman the Amplifier dropdown text is just empty. When I open the dropdown it shows the Mustang amp names (Fender '57 Deluxe, Fender '59 Bassman, Fender '57 Champ, ...)

Sending one of these amp IDs uses a 59 Bassman (sending needs some more values to figure out)

This seems to work. I changed the Treble and Bass settings in Plug and verified in FUSE that they have been indeed saved to the preset in the amp. Great progress.

Even better, all other amp settings like tone control, USB gain, noise gate settings (even custom ones) are read and saved correctly. Also, all effects settings were read and saved correctly with the exception of the four overdrive effects that are still unknown to Plug. I added the ids of these effects to the table above. This looks very close to a fully working version.

[StillVoidingWarranties]

I just tried to connect with usb debugging enabled.

On plugging in the amp there is

[ 4.647294] [00009504] libusb: debug [linux_get_device_address] getting address for device: 1-7 detached: 0
[ 4.651728] [00009504] libusb: debug [linux_get_device_address] scan 1-7
[ 4.651766] [00009504] libusb: debug [linux_get_device_address] bus=1 dev=28
[ 4.651772] [00009504] libusb: debug [udev_hotplug_event] udev hotplug event. action: add.
[ 4.651775] [00009504] libusb: debug [linux_enumerate_device] busnum 1 devaddr 28 session_id 284
[ 4.651780] [00009504] libusb: debug [linux_enumerate_device] allocating new device for 1/28 (session 284)
[ 4.651812] [00009504] libusb: debug [linux_get_parent_info] dev 0x7faeb4001f60 (1-7) has parent 0x55d1273ed6b0 (usb1) port 7
[ 4.689494] [00009504] libusb: debug [linux_get_device_address] getting address for device: 1-7 detached: 0
[ 4.689511] [00009504] libusb: debug [linux_get_device_address] scan 1-7
[ 4.689544] [00009504] libusb: debug [linux_get_device_address] bus=1 dev=28
[ 4.689551] [00009504] libusb: debug [udev_hotplug_event] udev hotplug event. action: bind.

Then, when trying to connect I get

[10.536388] [00009502] libusb: debug [libusb_get_device_descriptor]  
[10.536393] [00009502] libusb: debug [libusb_open] open 1.28
[10.536422] [00009502] libusb: debug [usbi_add_event_source] add fd 20 events 4
[10.536433] [00009502] libusb: debug [libusb_claim_interface] interface 0
[10.536595] [00009502] libusb: debug [libusb_submit_transfer] transfer 0x55d12770b1b0
[10.536602] [00009502] libusb: debug [add_to_flying_list] arm timer for timeout in 1000ms (first in line)
[10.536618] [00009502] libusb: debug [libusb_handle_events_timeout_completed] doing our own event handling
[10.536622] [00009502] libusb: debug [handle_events] event sources modified, reallocating event data
[10.536627] [00009502] libusb: debug [usbi_wait_for_events] poll() 3 fds with timeout in 60000ms
[10.536632] [00009502] libusb: debug [usbi_wait_for_events] poll() returned 1
[10.536636] [00009502] libusb: debug [handle_event_trigger] event triggered
[10.536639] [00009502] libusb: debug [handle_event_trigger] hotplug message received
[10.536645] [00009502] libusb: debug [libusb_handle_events_timeout_completed] doing our own event handling
[10.536648] [00009502] libusb: debug [usbi_wait_for_events] poll() 3 fds with timeout in 60000ms
[10.536691] [00009502] libusb: debug [usbi_wait_for_events] poll() returned 1
[10.536707] [00009502] libusb: debug [reap_for_handle] urb type=2 status=0 transferred=4
[10.536712] [00009502] libusb: debug [handle_control_completion] handling completion status 0
[10.536716] [00009502] libusb: debug [arm_timer_for_next_timeout] no timeouts, disarming timer
[10.536721] [00009502] libusb: debug [usbi_handle_transfer_completion] transfer 0x55d12770b1b0 has callback 0x7faee25fd100
[10.536725] [00009502] libusb: debug [sync_transfer_cb] actual_length=4
[10.536732] [00009502] libusb: debug [libusb_free_transfer] transfer 0x55d12770b1b0
[10.536738] [00009502] libusb: debug [libusb_submit_transfer] transfer 0x55d12770b1b0
[10.536741] [00009502] libusb: debug [add_to_flying_list] arm timer for timeout in 1000ms (first in line)
[10.536752] [00009502] libusb: debug [libusb_handle_events_timeout_completed] doing our own event handling
[10.536755] [00009502] libusb: debug [usbi_wait_for_events] poll() 3 fds with timeout in 60000ms
[10.536983] [00009502] libusb: debug [usbi_wait_for_events] poll() returned 1
[10.536996] [00009502] libusb: debug [reap_for_handle] urb type=2 status=0 transferred=36
[10.537000] [00009502] libusb: debug [handle_control_completion] handling completion status 0
[10.537003] [00009502] libusb: debug [arm_timer_for_next_timeout] no timeouts, disarming timer
[10.537008] [00009502] libusb: debug [usbi_handle_transfer_completion] transfer 0x55d12770b1b0 has callback 0x7faee25fd100
[10.537011] [00009502] libusb: debug [sync_transfer_cb] actual_length=36
[10.537017] [00009502] libusb: debug [libusb_free_transfer] transfer 0x55d12770b1b0

[...]

[12.069805] [00009502] libusb: debug [libusb_submit_transfer] transfer 0x55d12770b1b0
[12.069809] [00009502] libusb: debug [add_to_flying_list] arm timer for timeout in 500ms (first in line)
[12.069815] [00009502] libusb: debug [submit_bulk_transfer] need 1 urbs for new transfer with length 64
[12.069825] [00009502] libusb: debug [libusb_handle_events_timeout_completed] doing our own event handling
[12.069829] [00009502] libusb: debug [usbi_wait_for_events] poll() 3 fds with timeout in 60000ms
[12.569863] [00009502] libusb: debug [usbi_wait_for_events] poll() returned 1
[12.569894] [00009502] libusb: debug [libusb_cancel_transfer] transfer 0x55d12770b1b0
[12.569986] [00009502] libusb: debug [arm_timer_for_next_timeout] no timeouts, disarming timer
[12.573257] [00009502] libusb: debug [libusb_handle_events_timeout_completed] doing our own event handling
[12.573267] [00009502] libusb: debug [usbi_wait_for_events] poll() 3 fds with timeout in 60000ms
[12.573275] [00009502] libusb: debug [usbi_wait_for_events] poll() returned 1
[12.573297] [00009502] libusb: debug [reap_for_handle] urb type=1 status=-2 transferred=0
[12.573301] [00009502] libusb: debug [handle_bulk_completion] handling completion status -2 of bulk urb 1/1
[12.573304] [00009502] libusb: debug [handle_bulk_completion] abnormal reap: urb status -2
[12.573307] [00009502] libusb: debug [handle_bulk_completion] abnormal reap: last URB handled, reporting
[12.573311] [00009502] libusb: debug [usbi_handle_transfer_cancellation] detected timeout cancellation
[12.573314] [00009502] libusb: debug [arm_timer_for_next_timeout] no timeouts, disarming timer
[12.573318] [00009502] libusb: debug [usbi_handle_transfer_completion] transfer 0x55d12770b1b0 has callback 0x7faee25fd100
[12.573321] [00009502] libusb: debug [sync_transfer_cb] actual_length=0
[12.573325] [00009502] libusb: debug [libusb_free_transfer] transfer 0x55d12770b1b0
ERROR:  Invalid amp id: 0

[offa]

ERROR: Invalid amp id: 0

The amp IDs listed above aren't known to plug yet, but 0 usually indicates some kind of communication issues (eg. a different protocol or package format used).

Can you dump the initial packets between PC and device? If not, I can provide you a test version which does it.

[StillVoidingWarranties]

I am sorry but I don't know how to log USB traffic except for what I have posted above. If you could provide me with a test version I will happily make some logs. I may also be able to reactivate an old Windows 7 installation with FUSE installed but I don't know how to create any logs on Windows.

[offa]

The 20-bronco branch contains a very basic dumper – it'll write all received bytes to stdout (hex).

Amp packets are those with a 0x05 on the 3rd position (aka array index 2).

[StillVoidingWarranties]

Ok, thank you very much. I will look into this in a bit.

[StillVoidingWarranties]

Ok, here is what I found. First try:
1c 01 05 00 13 00 01 00 00 00 00 00 00 00 00 00 9b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ba aa ff aa 8f 60 86 80 80 00 80 80 07 07 07 01 02 04 00 01 7f 01 07 64 19 8c b3 80 80 89 00 00

Second try, different virtual amp selection:
1c 01 05 00 07 00 01 00 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 80 ff 8e 63 80 80 80 ff 80 80 01 01 01 02 03 00 00 01 7f 01 00 0d 80 4c ff ff 55 aa 00 00

Third try, different USB port, different virtual amp selection
1c 01 05 00 12 00 01 00 00 00 00 00 00 00 00 00 9a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 59 80 ff 9c 47 aa 80 80 00 80 80 06 06 06 01 02 06 06 01 7f 01 06 60 19 80 b3 80 80 80 00 00

[StillVoidingWarranties]

I have tried each of the 24 presets because they result in different bytes being sent. These are organized in 3 banks:
1 - 8: Factory presets (amber bank)
9 - 16: User presets A (green bank)
17 - 24: User presets B (red bank)

These are the 24 lines of data I received:

1c 01 05 00 07 00 01 00 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 80 ff 8e 63 80 80 80 ff 80 80 01 01 01 02 03 00 00 01 7f 01 00 0d 80 4c ff ff 55 aa 00 00 
1c 01 05 00 06 00 01 00 00 00 00 00 00 00 00 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 bf 81 00 80 63 a7 a4 91 80 ff 80 80 02 02 02 00 00 0d 02 01 7f 01 01 03 99 40 ff ff 80 80 00 00 
1c 01 05 00 05 00 01 00 00 00 00 00 00 00 00 00 97 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ed aa 80 63 55 55 9c 80 80 ff 80 80 03 03 03 00 00 0a 00 01 7f 01 01 03 99 40 ff ff ff 80 00 00 
1c 01 05 00 04 00 01 00 00 00 00 00 00 00 00 00 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b8 88 80 80 78 55 a0 80 80 00 80 80 04 04 04 01 02 05 04 01 7f 01 01 03 99 40 ff ff 57 50 00 00 
1c 01 05 00 03 00 01 00 00 00 00 00 00 00 00 00 9b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 aa ff aa 80 80 9c 80 80 ff 80 80 07 07 07 02 03 00 00 01 7f 01 00 03 99 40 ff ff 80 80 00 00 
1c 01 05 00 02 00 01 00 00 00 00 00 00 00 00 00 9a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d5 80 80 ff 9c 47 9c 80 80 00 80 80 06 06 06 01 02 06 06 01 7a 01 01 03 99 40 ff ff 80 80 00 00 
1c 01 05 00 01 00 01 00 00 00 00 00 00 00 00 00 99 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 9e 80 ff 80 80 b6 80 a3 00 80 80 05 05 05 01 02 02 00 01 7d 01 06 60 19 80 b3 80 80 80 00 00 
1c 01 05 00 00 00 01 00 00 00 00 00 00 00 00 00 bd 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b9 50 80 e3 55 47 aa 80 80 00 80 80 08 08 08 01 02 09 08 01 7f 01 01 03 99 40 ff ff ff e3 00 00 
1c 01 05 00 0f 00 01 00 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 88 80 ff 64 c9 b4 80 80 00 80 80 01 01 01 05 02 0a 00 01 7b 01 00 27 66 59 e6 c0 00 7e 00 00 
1c 01 05 00 0e 00 01 00 00 00 00 00 00 00 00 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 cd 69 00 80 ad 8f 84 9e 80 00 80 80 02 02 02 00 02 08 02 02 7f 01 00 60 19 80 b3 80 80 80 00 00 
1c 01 05 00 0d 00 01 00 00 00 00 00 00 00 00 00 97 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a2 aa 80 63 40 55 b9 80 80 ff 80 80 03 03 03 00 00 0c 00 01 7b 01 03 27 66 59 e6 c0 ff 80 00 00 
1c 01 05 00 0c 00 01 00 00 00 00 00 00 00 00 00 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 22 80 80 7c 7c c2 80 80 00 80 80 04 04 04 01 02 05 04 01 7d 01 01 03 99 40 ff ff 34 49 00 00 
1c 01 05 00 0b 00 01 00 00 00 00 00 00 00 00 00 9b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7c aa ff aa 8c 4e 7d 80 80 00 80 80 07 07 07 01 02 04 00 01 7a 01 0a 7d 19 c0 80 40 80 9b 00 00 
1c 01 05 00 0a 00 01 00 00 00 00 00 00 00 00 00 9a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c2 54 80 ff 69 47 9c 80 80 00 80 80 06 06 06 01 02 06 06 01 7a 01 01 03 99 40 ff ff 80 80 00 00 
1c 01 05 00 09 00 01 00 00 00 00 00 00 00 00 00 99 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 9e 80 ff 80 80 b6 80 a3 00 80 80 05 05 05 01 02 03 00 01 7d 01 06 60 19 80 b3 80 80 80 00 00 
1c 01 05 00 08 00 01 00 00 00 00 00 00 00 00 00 bd 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c9 51 80 e3 55 47 aa 80 80 00 80 80 08 08 08 01 02 05 08 01 7f 01 01 03 99 40 ff ff ff e3 00 00 
1c 01 05 00 17 00 01 00 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 88 80 ff 1b a8 c7 80 80 00 80 80 01 01 01 05 02 0a 00 01 7f 01 00 27 66 59 e6 c0 00 41 00 00 
1c 01 05 00 16 00 01 00 00 00 00 00 00 00 00 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 cd 69 00 80 ff 8f 63 e2 80 00 80 80 02 02 02 00 02 08 02 02 7f 01 00 60 19 80 b3 80 80 80 00 00 
1c 01 05 00 15 00 01 00 00 00 00 00 00 00 00 00 97 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ba 80 63 55 55 67 80 80 ff 80 80 03 03 03 00 00 0a 00 01 ff 01 01 03 99 40 ff ff ff 80 00 00 
1c 01 05 00 14 00 01 00 00 00 00 00 00 00 00 00 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e2 00 80 80 7c 7c c2 80 80 00 80 80 04 04 04 01 02 03 04 01 7d 01 06 60 19 80 b3 80 34 3b 00 00 
1c 01 05 00 13 00 01 00 00 00 00 00 00 00 00 00 9b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ba aa ff aa 8f 60 86 80 80 00 80 80 07 07 07 01 02 04 00 01 7f 01 07 64 19 8c b3 80 80 89 00 00 
1c 01 05 00 12 00 01 00 00 00 00 00 00 00 00 00 9a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 59 80 ff 9c 47 aa 80 80 00 80 80 06 06 06 01 02 06 06 01 7f 01 06 60 19 80 b3 80 80 80 00 00 
1c 01 05 00 11 00 01 00 00 00 00 00 00 00 00 00 99 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7d 9c 80 ff 80 4b b6 80 a3 00 80 80 05 05 05 01 02 03 00 01 7d 01 09 6e 19 a6 80 40 80 5c 00 00 
1c 01 05 00 10 00 01 00 00 00 00 00 00 00 00 00 bd 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a4 ff 80 e3 55 47 aa 80 80 00 80 80 08 08 08 01 02 05 08 01 7f 01 01 03 99 40 ff ff ff e3 00 00

[offa]

The packets seem similar to the mustang ones. I've taken your first example and decoded it using it's format (some values only):

• Header:
  • stage: ready
  • type: operation
  • dsp: amp
  • slot: 0x13 (19 dez.)
• Payload:
  • model: 0x9b
  • volume: 0xba (186 of 255)

Could these match your settings?

[StillVoidingWarranties]

Yes, this looks plausible, I think for the first try I used the 3rd model in the 3rd bank which would be #19.

BTW: The amps of the Bronco 40 are called:

• Rumble
• '59 Bassman
• Bassman TV
• Bassman 300
• Redhead
• Rockin' Peg
• KGB800
• Monster

[offa]

The 59 Bassman is included with id 0x64. Could you select that one, start Plug and see if you get past the invalid amp id error?

We have to figure out the id's of each amp model. Selecting on of those prior to starting Plug should yield a Invalid amp id <ID of selected amp> error.

[StillVoidingWarranties]

Sadly, the Bronco's 59 Bassman preset does not seem to work.

Strangely, I get different IDs without changing the preset. The first one (Rumble) was reported as 0, 71, 171, 238, 244, 245, 251, 252 and 255 on different attempts. Now, after a few tries I cannot get anything other than 0. I tried different cables and different USB ports and power cycling the amp. I will try rebooting the computer.

[StillVoidingWarranties]

Error ids vary wildly even after reboot or closing and reopening Plug.

[offa]

Error ids vary wildly even after reboot or closing and reopening Plug.

Did your test with the log attached fail with a 0 too? The amp packet seems to use model 0x9a there.

Bronco sends the slot number as the 5th byte, not the 4th which is always 0.

Could it be that the slot is not one, but two bytes?

[StillVoidingWarranties]

Did your test with the log attached fail with a 0 too? The amp packet seems to use model 0x9a there.

I didn't remember so I redid the test. I selected the "Bassman '59" factory preset (device id 0x01) and the log is about the same (except for the selected amp), see attached log.
bronco_bassman59.log

Could it be that the slot is not one, but two bytes?

Yes. I guess Fender wanted to accomodate more than 256 devices and extended the device id to a little endian Word.

[offa]

I do get a amp model id of 0x99, did you get an error containing that id?
The value appeared in the examples above too.

[StillVoidingWarranties]

No, the error message showed id 0.

[offa]

Could it be, that the amp uses a different order of packets, thus leading to a non-amp packet being parsed as an amp packet? The current implementation isn't that clever and does quite some assumptions regarding packet order.

[offa]

I have added a commit to investigate this. It'll print the actual bytes considered as amp packet and the value at the amp id position. Let's see what is decoded on the bronco! :-)

[StillVoidingWarranties]

Here are three logfiles.

• bronco_01.log is a connection attempt with factory preset "Rumble" (Nr. 1). Plug reported error id 0.
• bronco_02.log is a connection attempt with factory preset "'59 Bassman" (Nr. 2). Plug reported error id 0.
• bronco_03.log is a connection attempt with user preset 9. Plug reported error id 208

Does that help? Do you have similar logs of a Mustang amp?

[offa]

Sorry, I made a mistake – logging after parsing doesn't make much sense if the former fails 🤦‍♂️. Could you do the test again with the updated commit? One is enough.

[StillVoidingWarranties]

Sure. Here it is: bronco_04.log
I made a few more attempts with the same result: All bytes in the amp packet are zeroes.

[StillVoidingWarranties]

Here it (propably incorrectly) identified amp id 28: bronco_05.log

[offa]

As expected there's garbage decoded instead of amp data …

It could be that Broncos transmit a different number of packets. At least we have found the root of the issue …

[StillVoidingWarranties]

I already mentioned that the Bronco does not send its id on the 4th position of the amp name packets but at the 5th position, e.g.
1c 01 04 00 02 00 00 00 00 00 00 00 00 00 00 00 52 6f 63 6b 69 6e 27 20 50 65 67 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

instead of

1c 01 04 02 00 00 00 00 00 00 00 00 00 00 00 00 52 6f 63 6b 69 6e 27 20 50 65 67 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Is ist possible that this confuses Plug when it later tries to reference that amp id (which is always 00 on the Bronco).

[offa]

The slot isn't involved yet. The value would be wrong, but the amp packet itself is complete garbage:

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1c 01 0c 01 02 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 08 01 00 00 00 00 00 00 00 00 00 00 27 66 59 e6 c0 80 80 80 00 00 00 00 00 00 00 00 

Plug assumes a fixed number of packets in a given order. A different number of eg. presets on the amp could break this already. The original implementation is sometimes still mysterious …

We can narrow it down a bit tough. I'm going to update the debug code to give some more insight of the data loaded.

[StillVoidingWarranties]

If it helps I could try to log a complete connection with Fender Fuse and Wireshark.

[offa]

While Mustangs transmit presets with two packets each (first starts with 0x1c 0x01 0x04) plus an additional for the current preset, the bronco does something different: After 24 preset (each 2 packets) comes an additional set of packets (the current values?) but then more with the preset prefix, but varying number of follow-ups. This could be the fxloop?

However, the amp packet seems at the right place but is decoded wrong later!?

[offa]

Branch updated: It'll print the number of presets received (should be 48) and the 7 packets, that contain the current settings. Expected are a 1c 01 04 … and 1c 01 05 … as the first two.

[StillVoidingWarranties]

Thank you. Two logs, both resulted in

ERROR: No device found
ERROR: Invalid amp id: 0

bronco_07.log
bronco_08.log

And another with a result in amp data:

ERROR: Invalid amp id: 255

bronco_09.log

[StillVoidingWarranties]

I managed to capture a connection between the Bronco and the Fender Fuse software using Wireshark :-). I hope this will be helpful in unterstanding what is going on.

Connection_01.zip^

Here is an export of the raw data transmitted. I removed the first packets which I guess are associated with the Bronco's USB audio interface and the packets from the host to the Bronco since these seem to be just acknowledgement packets.

Connection_01_dissected_raw.txt

[offa]

Preset packets: 200

🤦 That's a problem. It should be 48 on your device (2x number of presets).

Update: For quick testing there's a fixed number now, could you give the newest commit a try please?

Here is an export of the raw data transmitted.

Interesting, the packets use some different values than those received over plug!?

[StillVoidingWarranties]

Thank you. But still no luck (Invalid amp id: 189).
Log: bronco_10.log

[offa]

But this time the correct amp packet is parsed. An invalid amp id is normal here as it's not mapped yet. 189 = 0xbd looks plausible. Do subsequent tests with the same amp yield the same value?

The first thing to fix is the wrong number of presets for Bronco.

[StillVoidingWarranties]

Do subsequent tests with the same amp yield the same value?

Mostly yes. In my tests I sometimes got a different error on the first try but subsequent tries were consistent. Here are the IDs for the first 8 presets (amber bank, factory presets):

Preset	Amp id dec	Amp id hex	Amp Name
1	150	0x96	Rumble
2	no error	no error	'59 Bassman
3	151	0x97	Bassman TV
4	152	0x98	Bassman 300
5	155	0x9b	KGB 800
6	154	0x9a	Rockin' Peg
7	153	0x99	SWR Redhead
8	189	0xbd	Monster

The ids repeat in the two other banks (green, red) because I left the amp models the same in the user presets and only changed the settings and effects.

On the second preset I did not get an "Invalid Amp" error but rather an "Invalid Cabinet" error (id 13). The controls of Plug don't seem to do anything, however. Here is the logfile of this connection:
bronco_preset_02a.txt

In the preset 10 (2nd in the green bank) I even got a connection without any error! However, trying to set an amp setting resulted in an Input/Output error. Here is the log for that:
bronco_preset_10b.txt

[StillVoidingWarranties]

Awesome, I will give it a try. In the meantime, here are some ids of the cabinet simulations the bronco uses. I took them from the FUSE backup files, there they are called "ControlIndex 17". Maybe these are the same ids that are received from/sent to the Bronco. I listed them in the order they appear in the FUSE cabinet selection.

id dec	id hex	name
0	0x00	No Cabsim
1	0x01	1x10 modern
2	0x02	2x10 modern
3	0x03	4x10 modern
4	0x04	4x10 Hi-Fi
13	0x0d	4x10 vintage
5	0x05	8x10 modern
6	0x06	8x10 vintage
7	0x07	1x12 modern
9	0x09	4x12 modern
10	0x0a	1x15 vintage
11	0x0b	1x15 modern
8	0x08	2x15 vintage
12	0x0c	1x18 vintage

[StillVoidingWarranties]

Next, I will try to find out the ids of the effects of the Bronco.

Type	id dec	id hex	Effect
Stomp Box / Post Gain	198	0xc6	Modern Bass Overdrive
	195	0xc3	Overdrive
	196	0xc7	Fuzz
	186	0xba	Greenbox
			Simple Comp
Mod / Filter			Sine Chorus
			Triangle Chorus
			Sine Flanger
			Triangle Flanger
			Vibratone
			Phaser
			Step Filter
			Envelope Controlled Filter
			Octave
Delay			Mono Delay
			Ducking Delay
			Multitap Delay
			Ping Pong Delay
			Reverse Delay
			Tape Delay
			Stereo Tape Delay
			Mono Echo Filter
			Stereo Echo Filter
			Pitch Shift Delay
Reverb			Small Hall Reverb
			Large Hall Reverb
			Small Room Reverb
			Large Room Reverb
			Small Plate Reverb
			Large Plate Reverb
			Ambient Reverb
			Arena Reverb
			'63 Fender Spring Reverb
			'65 Fender Spring Reverb

[offa]

These are good news! 😄

[offa]

The current architecture makes it quite challenging to support new devices unfortunately. And there's no proper way to do it right now :-/.

[StillVoidingWarranties]

Sad to hear. Maybe one day someone will have the motivation to do a refactoring or rewrite. Thank you very much for looking into this anyways.