DM32.01.01.049 - Reads from but does not write to

[rough-ton]

I have a DM32 running firmware version DM32.01.01.049. NeonPlug is able to read from the radio but not write to it. I have included the debug stack trace below. I am aware that this version of firmware is not fully tested. Let me know if you need additional information or want me to test again if you find a solution.

`NeonPlug Connection Debug
Timestamp: 2026-02-09T03:49:48.938Z
Error: Connection failed: No reply from the radio. Is the radio connected and turned on? Please click the Read/Write button again and select the correct serial port when prompted.

--- Recent logs ---
[2026-02-09T03:41:44.909Z][INFO][Connection] Ready to communicate.
[2026-02-09T03:41:46.880Z][INFO][Memory] Reading metadata from 200 blocks from 0x1000 to 0xc8000 (endAddr was 0xc8fff)
[2026-02-09T03:41:59.719Z][INFO][Memory] Discovered 200 blocks: Channels=48, Zones=1, Scan Lists=1, Unknown=49, Empty=93
[2026-02-09T03:41:59.783Z][INFO][Protocol] Channel count: 20
[2026-02-09T03:41:59.784Z][INFO][Protocol] Found required metadata block 0xb at 0x08D000 (marked as unknown type, but will read)
[2026-02-09T03:41:59.784Z][INFO][Protocol] Found required metadata block 0x44 at 0x00B000 (marked as unknown type, but will read)
[2026-02-09T03:41:59.784Z][INFO][Protocol] Found required metadata block 0x42 at 0x008000 (marked as unknown type, but will read)
[2026-02-09T03:41:59.784Z][INFO][Protocol] Found required metadata block 0x43 at 0x00A000 (marked as unknown type, but will read)
[2026-02-09T03:41:59.784Z][INFO][Protocol] Bulk reading 15 blocks (channels, zones, scan lists, and fixed metadata blocks)
[2026-02-09T03:42:08.259Z][INFO][Protocol] Bulk read complete: 15 blocks cached
[2026-02-09T03:42:08.259Z][INFO][Protocol] Set allBlockData with 15 blocks for store persistence (allBlockMetadata has 200 entries)
[2026-02-09T03:42:08.262Z][INFO][Protocol] Channel count: 20
[2026-02-09T03:42:08.262Z][INFO][Protocol] Parsing 1 cached channel blocks for 20 channels
[2026-02-09T03:42:08.263Z][INFO][Protocol] Successfully parsed 20 channels (expected 20)
[2026-02-09T03:42:08.265Z][INFO][Protocol] Found 1 zone blocks (metadata 0x5c)
[2026-02-09T03:42:08.265Z][INFO][Protocol] Successfully parsed 3 zones
[2026-02-09T03:42:08.290Z][INFO][Protocol] Found 1 scan list blocks (metadata 0x11)
[2026-02-09T03:42:08.290Z][INFO][Protocol] Successfully parsed 3 scan lists: Scan List 1, SIMP SCN, WX SCN
[2026-02-09T03:42:47.894Z][INFO][Protocol] Restoring cache from store: 15 block data entries, 200 metadata entries
[2026-02-09T03:42:47.894Z][INFO][Protocol] Restored 15 blocks from store cache
[2026-02-09T03:42:48.476Z][INFO][Connection] Ready to communicate.
[2026-02-09T03:42:53.594Z][WARN][Protocol] Connection failed with previously granted port
Error: No reply from the radio. Is the radio connected and turned on?
[2026-02-09T03:42:53.595Z][WARN][Protocol] Error closing failed port
Error: Failed to execute 'close' on 'SerialPort': Cannot cancel a locked stream
[2026-02-09T03:49:43.219Z][INFO][Protocol] Restoring cache from store: 15 block data entries, 200 metadata entries
[2026-02-09T03:49:43.220Z][INFO][Protocol] Restored 15 blocks from store cache
[2026-02-09T03:49:43.814Z][INFO][Connection] Ready to communicate.
[2026-02-09T03:49:48.935Z][WARN][Protocol] Connection failed with previously granted port
Error: No reply from the radio. Is the radio connected and turned on?
[2026-02-09T03:49:48.936Z][WARN][Protocol] Error closing failed port
Error: Failed to execute 'close' on 'SerialPort': Cannot cancel a locked stream`

[infamy]

Radio seems to time out. The firmware maybe a lot slower to respond and need more delay. Let me increase it and you can test it..

But it did read fine.. I assume everything decoded as expected? channels, zones, scanlist?

[infamy]

under about at the bottom hit enable diagnostics. On the new diagnostics tab that appears there is a button near the top to download the data. If you don't mind sending to me.. Feel free to do it on discord instead of here.

[rough-ton]

Thanks for the quick response! I had no issues with any decoded content. Everything was there as expected. Though I am only using analog at the moment and don’t have anything set for digital yet. I can test that soon.

[infamy]

I had a fix I was sitting on that increased some of the timing. I don't think it will fix the issue. But worth a try. If not the addition debug information in diagnostic tab may help me..

[rough-ton]

Here's the full export. There isn't any personal/private data.

neonplug-full-export-2026-02-09T04-27-35.zip

[infamy]

I assume this did not work any better? if you refreshed the page before reading the radio in the last 4-5mins you would have been with the new code.

[infamy]

The export looks good. I'm leaning towards timing issues. Or unexpected reply from the radio.

[rough-ton]

Correct, no improvements for writes to the radio. The radio's settings are pretty vanilla. The only things that have been adjusted are the display colors and channels, zones, and scan groups.

[infamy]

Yeah, that is all I saw too. Nothing that would cause it to have a connection issue. Do you know what type of cable you are using? The chipset? and what OS and browser? I think this is related to #39

[rough-ton]

A write just worked!!! Possibly a cache issue since your change. What hosting provider are you using and do you have a CDN/Proxy in front like Cloudflare?

I'm using a MIRKIT Radio (FTDI Chip) cable on a macOS M3 running Tahoe and Google Chrome.

Also, the Discord link in the README has expired and no longer works.

[infamy]

github pages + Cloudflare.. so my push may have taken a bit of time.. AWESOME yeah so its timing.. I also have a red mirkit radio cable in my test pile. And all my dev is on macOS in chrome.. So that is good.

Adding more debug for future, but it sounds like yours is working.. and good spot on the discord link let me fix that.

[rough-ton]

Very nice! I'll keep an eye on this project and keep testing. I'm glad I'm able to program on my macOS now!

[infamy]

Closing this.. discord link should post up in a minute just merge it and some addition debugging #115