Funciones

analog FM receive and transmit

Includes its children (tones, VOX, APRS, FM VFO)

Requiere: — · Flash: DM-1701 29,296 B · MD-380 28,056 B

CTCSS / DCS encode and decode (needs FM)

MD-380: software decode (ADC) and PWM encode; CTCSS 100.0 Hz works on air both ways (2026-10-19), DCS not yet checked

Requiere: FM · Flash: DM-1701 904 B · MD-380 3,292* B

DMR Tier II voice: modem driver, call stack, AMBE FEC, vocoder hosting

Includes every DMR feature and everything on IP over DMR

Requiere: — · Flash: DM-1701 175,856 B · MD-380 134,308 B

basic privacy (Motorola / Anytone BP) on the voice path (needs DMR)

Requiere: DMR · Flash: DM-1701 1,936 B · MD-380 1,992 B

talker alias decode and TX of our radio name (needs DMR)

Requiere: DMR · Flash: DM-1701 984 B · MD-380 1,300 B

ETSI GPS Info in the embedded LC (FLCO 8): the caller's position decoded and shown, ours sent from the APRS position source when the radio-wide setting is on (needs DMR)

Requiere: DMR · Flash: DM-1701 2,208 B · MD-380 2,152 B

CSBK signaling: call alert, radio check (needs DMR)

Requiere: DMR · Flash: DM-1701 592 B · MD-380 752 B

DMR emergency: the emergency alarm CSBK sent and heard, emergency calls (the LC's emergency service option, hot mic), the receive alert (needs DMR; core/dmr/dmr_emergency.c, docs/spec/dmr-emergency.md)

Requiere: DMR · Flash: DM-1701 3,296 B · MD-380 3,188 B

DMR repeater roaming: move between the repeater sites of a roaming zone by signal strength (needs DMR; core/radio/roam.c, docs/spec/dmr-roaming.md)

Requiere: DMR · Flash: DM-1701 11,952 B · MD-380 12,380 B

VFO: tune a frequency by hand (off: programmed channels only)

Includes the DMR VFO; VFO and VFO_DMR re-measured 2026-10-17 (DM-1701 plain build, MD-380 with LTO). Copy to VFO (dmr-voice.md 2.2) is on top of that figure, behind the same switch: about 630 B on the DM-1701 and 730 B on the MD-380 (default builds, LTO as each has it), 750 B on the C-SKY radios

Requiere: — · Flash: DM-1701 656 B · MD-380 516 B

analog FM VFO (needs VFO and FM)

Requiere: VFO, FM · Flash: DM-1701 504 B · MD-380 452 B

digital DMR VFO: color code, timeslot and talk target typed in, the Mode tile switches it FM / DMR (needs VFO and DMR)

The VFO's mode, color code, slot and talk target are settings of the VFO, kept across power cycles (dmr-voice.md 2.1)

Requiere: VFO, DMR · Flash: DM-1701 144 B · MD-380 104 B

channel / zone scan, VFO band scan, dual watch, nuisance delete (docs/spec/radio-features.md)

Requiere: — · Flash: DM-1701 2,576 B · MD-380 3,032 B

the dual watch screens: two channels on Home, which one PTT uses and which one a call came in on; the radio core's dual watch across zones and with the VFO, PTT on the selected channel (needs SCAN; docs/ux/dual-watch.md)

Needs SCAN. Without it, only the debug link's dual watch (two channels of one zone). Measured 2026-10-21 on the dual watch branch, default builds

Requiere: SCAN · Flash: DM-1701 10,864 B · MD-380 11,456 B

beeps and alert tones as PCM through the speaker (needs the board's PCM audio, which some radios have only with DMR)

Requiere: — · Flash: DM-1701 1,552 B · MD-380 1,800 B

FM transmit tones: roger beep and the 1750 Hz repeater access burst (needs FM)

MD-380: TX tone path not written

Requiere: FM · Flash: DM-1701 568 B

DTMF transmit: keypad digits send touch tones while PTT is held on FM (needs FM; docs/spec/radio-features.md 3.7)

MD-380: TX tone path not written

Requiere: FM · Flash: DM-1701 920 B

FM VOX: voice-operated transmit from the microphone level (needs FM; unverified on the bench)

Requiere: FM · Flash: DM-1701 496 B · MD-380 1,064 B

reference oscillator trim: Settings > Advanced > Freq trim moves receive and transmit together (needs the board's hal_radio_t.ref_trim; docs/spec/radio-features.md 6.1)

Figures from tools/ci.sh (2026-10-30); the hook on each radio, the page and the setting

Requiere: — · Flash: DM-1701 2,156 B · MD-380 2,232 B

receiver battery saving: FM receiver duty cycling while idle (needs FM)

Requiere: FM · Flash: DM-1701 296 B · MD-380 740 B

vibration alerts on the board's motor (hal_power_t.vibrate) for messages, call alerts, private calls and emergencies, Settings > Sound > Vibrate (core/radio/vibe.c, docs/spec/radio-features.md 4.1). On for radios with a motor (their config.mk); a board without one shows the setting dimmed

Needs a vibration motor (hal_power_t.vibrate): none of these radios has one RadioFoundry drives. On for the DM-1801 Pro. Measured 2026-10-16 with CONFIG_SNMP=n; 236 B with LTO

Requiere: — · Flash: DM-1701 520* B

the GPS receiver: the board's module driver and its NMEA parsing (drivers/gps, platform/*/gps*, CAP_GPS). Off, the radio has no GPS: DMR_GPS, LRRP and APRS keep a fixed position and answer "no fix". Off where the radio has none

Needs a GPS receiver. Off, DMR GPS, LRRP and APRS keep the fixed position and report no fix. MD-380 measured 2026-10-22 (LTO, 58f2cebe). The DM-1701 has none from the factory but listens for an owner-fitted one (1,308 B, LTO)

Requiere: — · Flash: MD-380 1,196 B

air band AM receive: FM channels and the VFO in 108-137 MHz are received in AM, receive only, on radios whose receiver does AM (CAP_AM_RX; needs FM; docs/spec/airband-and-broadcast.md). Off where the receiver can't

Needs a receiver that does AM; DM-32 board glue not written yet, so nothing runs

Requiere: FM · Flash: DM-1701 408* B

broadcast FM receive: FM channels and the VFO in the broadcast receiver's range play on that second receiver chip, receive only (board.bcast, CAP_BCAST_FM; docs/spec/airband-and-broadcast.md). Off where there is none

Needs a second receiver chip (DM-32's RDA5807M); glue not written yet

Requiere: — · Flash: DM-1701 ~0* B

key assignment: Settings > Keys and the codeplug's quick-key slots say what the board's programmable keys do (core/input/keyassign.c, docs/spec/ui.md 3.1)

Up to 9 keys. Measured 2026-10-24

Requiere: — · Flash: DM-1701 2,120 B · MD-380 2,188 B

the hub's Channels list: every codeplug channel by number, and a channel's settings (read only; core/ui/ui_menus.c, docs/spec/ui.md 2)

Requiere: — · Flash: DM-1701 1,536 B · MD-380 2,140 B

editing a channel on the radio, New channel from current settings, keypad text entry (docs/spec/ui.md 2.1): with the Channels list

Needs CHANNEL_LIST. Without it a channel's settings are read only. Measured 2026-10-17

Requiere: CHANNEL_LIST · Flash: DM-1701 4,656 B · MD-380 4,252 B

the zone editor in a zone's list: add, move, copy here, remove channels; rename, copy, delete zones (docs/spec/ui.md 2.2): with the channel editor

Needs CHANNEL_EDIT. Measured 2026-10-24 on the default builds, LTO as each has it; also about 1.3 KB of RAM

Requiere: CHANNEL_EDIT · Flash: DM-1701 6,580 B · MD-380 6,928 B

the contact editor: a new contact from Find, a call's actions or a typed number, its name, ID, type and timeslot (docs/spec/ui.md 2.4): with the channel editor (its text entry) and DMR

Needs CHANNEL_EDIT and DMR. Measured 2026-10-30 on the default builds

Requiere: CHANNEL_EDIT, DMR · Flash: DM-1701 1,580 B · MD-380 1,580 B

the volume bar over the screen when a knob the MCU reads turns (docs/spec/radio-features.md 4.2)

Measured 2026-11-08 on the default builds; shows only on a radio with such a knob. Off, the volume screen keeps the segment drawing it now shares (about 90 bytes)

Requiere: — · Flash: DM-1701 496 B · MD-380 428 B

DMR text messages (SMS; needs DMR): ETSI IP text and ETSI defined short data, sent and received (docs/spec/dmr-data.md 5)

Includes the TMS format. Individual ETSI IP texts go confirmed ("Delivered to")

Requiere: DMR · Flash: DM-1701 2,640 B · MD-380 5,072 B

Motorola TMS format support for text messages: send, receive, the TMS ACK (needs DMR_SMS; docs/spec/dmr-data.md 5.1)

Optional format next to ETSI IP text

Requiere: DMR_SMS · Flash: DM-1701 784 B · MD-380 740 B

ARS registration with a presence server (needs DMR; docs/spec/dmr-data.md)

Requiere: DMR · Flash: DM-1701 1,112 B · MD-380 1,324 B

LRRP location request / response (needs DMR; uses GPS where the board has it, else answers "no fix")

Requiere: DMR · Flash: DM-1701 8,548 B · MD-380 2,048 B

zone and channel sharing over DMR data: "Share zone to..." and offers of zones from other radios, imported only when the user accepts (needs DMR; core/dmr/zoneShare*.c, docs/spec/zone-share.md)

Includes its screens and the import; about 4 KB of RAM. Received shares are offered by default, imported only when the user says so (zone-share.md). Measured 2026-10-24 with LTO, on the zone share branch

Requiere: DMR · Flash: DM-1701 12,240 B · MD-380 12,388 B

compressed UDP/IPv4 headers on transmit (SAP 3, ETSI TS 102 361-3 5.6 / 7.2): UDP packets whose header fits the compression rules go with a 5 to 9 octet header instead of 28 (needs DMR; docs/spec/dmr-data.md 11)

Auto: not for ports 4000-4099 or ETSI IP text

Requiere: DMR · Flash: DM-1701 408 B · MD-380 356 B

single frequency repeater (needs DMR): the MMDVM hotspot's SFR mode (core/hotspot/hotspotSfr.c, core/dmr/sfrRunner.c) and the standalone repeater and user roles of a channel (core/radio/radio_sfr.c, docs/spec/sfr.md 4)

MD-380: HR_C5000 lacks what the SFR glue uses

Requiere: DMR · Flash: DM-1701 6,884 B

SFR user receive mode "dual-path RX": a voice frame whose FEC failed is taken from the other copy (needs SFR)

Needs SFR. DM-1701 figure with LTO (2026-10-22)

Requiere: SFR · Flash: DM-1701 696 B

the standalone SFR repeater's periodic CW ID: its callsign in Morse, in FM on the channel (needs SFR)

Needs SFR. DM-1701 figure with LTO (2026-10-22)

Requiere: SFR · Flash: DM-1701 900 B

APRS (core/aprs, docs/spec/aprs.md): position, status and message packets as AX.25 / 1200 baud AFSK on FM, positions over DMR (LRRP / UDT), a KISS TNC on the host port. Transmit stays off until the user turns it on (needs FM)

Includes APRS receive, KISS over TCP and APRS-IS where built. MD-380: AFSK TX needs the tone path (not written), DMR positions work

Requiere: FM · Flash: DM-1701 26,568 B · MD-380 26,628 B

APRS receive: the AFSK demodulator, station list, messages to us, digipeater (needs APRS; useful only on boards whose board.afsk can sample received audio)

DM-1701: FM receive audio on the I2S stream, squelch gated (aprs 5.3). MD-380: not written

Requiere: APRS · Flash: DM-1701 8,892 B

APRS iGate rules, RF <-> APRS-IS through the host helper tools/aprs_gate.py (needs APRS_RX and HOSTLINK)

Needs APRS receive. DM-1701: off by default

Requiere: APRS_RX, HOSTLINK · Flash: DM-1701 1,820* B

the GPS status screen: satellites on a sky plot and signal bars, fix quality, grid locator (core/aprs/nmea_sky.c, core/ui/ui_gps.c, docs/spec/aprs.md 7.1). Needs GPS and APRS; off, Tools > Position is a page of text

Needs GPS and APRS. 176 B of RAM. MD-380 measured 2026-10-29 (LTO)

Requiere: GPS, APRS · Flash: MD-380 5,244 B

IP over DMR packet data through a network link to the host: the USB network adapter or PPP on the serial host port (needs DMR and USB_NETWORK or NET_PPP; core/hostlink/hostlink_net.c)

Includes the radio's own services below

Requiere: DMR, (USB_NETWORK | NET_PPP) · Flash: DM-1701 44,128 B · MD-380 43,220 B

a minimal TCP for the radio's own services on the USB network link, never over RF (needs DMR_IP_GATEWAY, whose IPv4 layer it uses; core/net, docs/spec/tcp-services.md)

Includes KISS, HTTP, rigctld, APRS-IS. About 4.5 KB RAM

Requiere: DMR, DMR_IP_GATEWAY · Flash: DM-1701 16,240 B · MD-380 15,656 B

KISS over TCP on port 8001, bridged to the APRS KISS TNC (needs NET_TCP and APRS; core/net/kiss_tcp.c)

Requiere: DMR, NET_TCP, APRS · Flash: DM-1701 700 B · MD-380 752 B

the HTTP status server on port 80: a page, JSON status and view sections, the screen (needs NET_TCP; core/net/http.c)

Requiere: DMR, NET_TCP · Flash: DM-1701 4,796 B · MD-380 4,860 B

the status server's static files (core/net/http_assets) stored gzip compressed at build time and served with Content-Encoding: gzip; off: stored and served as they are (needs NET_HTTP; tools/gen_http_assets.py)

Negative: saves flash, nearly all of it on web control's files. MD-380: web control follows this switch (hardware-md380.md 19)

Requiere: DMR, NET_HTTP · Flash: DM-1701 -19,456 B · MD-380 -18,572 B

web control on the status server: /ws (WebSocket) for the radio's front panel page, keys, status and receive audio (needs NET_HTTP; core/net/ws.c, docs/spec/tcp-services.md 5)

The page and the radio's drawing included (about 6 KB gzip compressed); 1 KB RAM (tcp-services.md 5.1)

Requiere: NET_HTTP · Flash: DM-1701 9,620 B · MD-380 9,332 B

Hamlib rigctld on port 4532: frequency, mode, PTT, S meter for loggers and SDR programs (needs NET_TCP; core/net/rigctld.c)

Requiere: DMR, NET_TCP · Flash: DM-1701 3,852 B · MD-380 3,728 B

the radio's own APRS-IS client through the host: our beacons and the iGate's lines, off until a server is set (needs NET_TCP and APRS; core/net/aprsis.c)

Needs NAT on the host

Requiere: DMR, NET_TCP, APRS · Flash: DM-1701 2,856 B · MD-380 2,720 B

audio linking for AllStarLink, DVSwitch and bridges (USRP voice over UDP, port 34001): the radio sends what it receives, with the squelch as keyup, and transmits what the computer sends. DMR works both ways on every radio; FM needs the radio's audio paths to the processor, which radios have both ways, DMR only or FM one way (docs/feature-matrix.md) (needs DMR_IP_GATEWAY; core/usbaudio, docs/spec/usb-audio.md)

DM-1701: DMR and FM both ways. MD-380: DMR only (FM audio doesn't reach the processor yet). DM-32UV: DMR only until its board code has the FM audio paths

Requiere: DMR, DMR_IP_GATEWAY · Flash: DM-1701 4,552 B · MD-380 4,888 B

mDNS / DNS-SD responder on the USB network link: <host>.local and the radio's services (needs DMR_IP_GATEWAY, the IP stack it runs on; core/net/mdns.c, docs/spec/mdns.md)

Requiere: DMR, DMR_IP_GATEWAY · Flash: DM-1701 6,744 B · MD-380 6,504 B

TFTP server on the USB network link: codeplug.bin read and (staged, checked) written, info.txt (needs DMR_IP_GATEWAY; core/net/tftp.c, docs/spec/tftp.md)

Without the ID database below

Requiere: DMR, DMR_IP_GATEWAY · Flash: DM-1701 6,356 B · MD-380 6,412 B

DMR ID database over TFTP: iddb.bin read and written in place, and the database part of a combined codeplug.bin (needs TFTP; core/net/tftp_iddb.c, docs/spec/tftp.md 5)

Follows TFTP

Requiere: TFTP · Flash: DM-1701 2,184 B · MD-380 2,264 B

the compact DMR ID database (format C): dictionary-coded names, IDs as gaps, pages with room to grow, read beside format N (needs DMR; core/codeplug/dmr_iddb.c, docs/spec/iddb-compact.md)

Follows DMR (iddb-compact.md)

Requiere: DMR · Flash: DM-1701 988 B · MD-380 992 B

control station mode for PC dispatch software on the USB network link: the PC as the endpoint of the radio's own data ports (passthrough) and a fixed private link address pair (needs DMR_IP_GATEWAY; docs/spec/usb-network.md 5)

Requiere: DMR_IP_GATEWAY · Flash: DM-1701 288 B · MD-380 484 B

SNMP agent (SNMPv2c) on UDP 161 of the radio's address, over the USB network and over the air, with notifications (needs DMR_IP_GATEWAY; core/snmp, docs/spec/snmp.md)

Requiere: DMR_IP_GATEWAY · Flash: DM-1701 8,460 B · MD-380 8,036 B

USB network adapter personality (CDC-NCM, switched with the serial one at run time; needs USB)

Includes everything below

Requiere: USB, HOSTLINK · Flash: DM-1701 48,344 B · MD-380 47,468 B

IPv4 over PPP on the serial host port, into the IP gateway and its services: for radios whose only host link is a USB-serial cable, and a fallback on the USB serial port (needs HOSTLINK and DMR_IP_GATEWAY, which it turns on by default; core/net/ppp.c, core/hostlink/hostlink_ppp.c, docs/spec/ppp.md). On in the config.mk of a radio whose only IP link it is; off on the USB radios (docs/feature-matrix.md)

Interop tested with pppd; checked on the DB25-D PRO and the DM-1801 Pro (docs/spec/ppp.md 8). Fits neither default image as it is when measured (DM-1701 688 B short, MD-380 1,588 B short of its 275 KB then; DM-1701 with LTO: +3,948, fits). DM-32: its only IP link, on by default with the gateway and every service (Whole images, DM-32UV)

Requiere: HOSTLINK, DMR_IP_GATEWAY · Flash: DM-1701 4,368* B · MD-380 3,816* B

every task's least free stack in the debug link's tasks view: the kernel's task create / delete trace hooks keep a table of the tasks (core/app/task_stack.c, docs/spec/debuglink.md 3.7; needs DEBUGLINK). About 0.6 KB

Each task's least free stack, the tasks view section (debuglink 3.7)

Requiere: DEBUGLINK · Flash: DM-1701 536 B · MD-380 560 B

USB device (CDC serial)

DM-32 has no USB (host link on the programming cable's UART). Includes everything on USB

Requiere: — · Flash: DM-1701 127,300 B · MD-380 87,848 B

the host link (core/hostlink): MMDVM hotspot, CPS and debug link over the board's host port (USB CDC, or the programming cable's UART on radios without USB)

Includes its children

Requiere: — · Flash: DM-1701 115,640 B · MD-380 77,644 B

MMDVM modem / hotspot mode over the host port (needs DMR and HOSTLINK)

Includes split duplex and MMDVM SFR where built. MD-380: size estimated

Requiere: DMR, HOSTLINK · Flash: DM-1701 34,196 B · MD-380 ~12,400 B

split duplex repeater: two radios as one duplex MMDVM modem through the hotspot's vendor command 0xD6 (needs HOTSPOT; core/hotspot/hotspotSplit.c, core/dmr/bsOutbound.c, core/dmr/slotEpoch.c, docs/spec/split-duplex.md)

MD-380: HR_C6000-only glue. DM-1701, DM-32UV, DM-1801 Pro: each half checked alone on the SDR bench; one pair (DM-1801 Pro TX, DM-32UV RX) with a subscriber: 29 of 31 calls on the right slot

Requiere: HOTSPOT · Flash: DM-1701 12,584 B

the debug link: framed commands on the host port for bench automation (docs/spec/debuglink.md; needs HOSTLINK)

Requiere: HOSTLINK · Flash: DM-1701 32,376 B · MD-380 29,084 B

the open-firmware CPS protocol shim on the host port, so qdmr and the open-firmware CPS can read and write the codeplug (docs/spec/open-firmware-cps.md; needs HOSTLINK)

Requiere: HOSTLINK · Flash: DM-1701 3,064 B · MD-380 3,008 B

the fast codeplug protocol on the debug link's framing: blank blocks skipped, CRC-32 compare so only changed blocks move, LZ4 both ways, staged writes with a power-cut safe commit (docs/spec/cps-fast.md; needs CPS_OPENFW, and DEBUGLINK or STUB_ENTRY, whose own listener carries it without the debug link)

Changed 4 KB blocks only, LZ4 both ways, staged commit (cps-fast.md). DM-1701 figure with LTO (2026-10-18)

Requiere: CPS_OPENFW, (DEBUGLINK | STUB_ENTRY) · Flash: DM-1701 3,732 B · MD-380 3,948* B

runtime RAM-monitor entry: command 0x1A on the host port loads the host's flash-access stub into free RAM and jumps to it without a power cycle, so updates need no key combo at power-on (the web flasher, stub/stubtool.py, rfoundry; core/stubentry, docs/spec/stub-entry.md). Its own feature: with the debug link off it answers on its own small listener (PING, VERSION, STUB). Needs HOSTLINK (the task that owns the port) and a platform with hal_system_t.enter_stub: the HR_C7000, and the STM32F4 with an 8 KB staging buffer (docs/spec/stub-stm32f4.md). On wherever the host link is; a board leaves it off in its config.mk only for a stated reason

Updates and backups over the radio's own link without the bootloader key press: the web flasher and stub/stubtool.py. On by default on every radio, with or without the debug link (stub-entry.md); on the STM32 radios a RAM flash stub that also takes 8 KB of RAM (stub-stm32f4.md) (the DM-1701's RAM is 95 % used with it on)

Requiere: HOSTLINK · Flash: DM-1701 768* B

the crash log: a CPU fault, a task stack overflow, running out of heap or a failed assertion keeps a record (registers, fault status, task, stack words) where a reset doesn't clear it and restarts the radio; the next start shows it (core/crash, docs/spec/crash-log.md). Off: a crash stops the radio until a power cycle, as before. Needs nothing else

A fault, stack overflow, heap exhaustion or failed assertion keeps a record across the restart; the debug link shows it (crash-log.md)

Requiere: — · Flash: DM-1701 1,572 B · MD-380 1,756 B

the crash log's screen: Settings > Advanced > Crash log, the record's summary and Clear (needs CRASH_LOG). Off, the debug link still shows the record

Settings > Advanced > Crash log: the record's summary and Clear

Requiere: CRASH_LOG · Flash: DM-1701 1,024 B · MD-380 1,408* B

the crash report: the crash log's record, packed (76-124 bytes), as one UDP datagram over DMR packet data to a codeplug contact, from the Crash log screen or after the restart (off / ask / automatic; docs/spec/crash-log.md 5) (needs CRASH_SCREEN and DMR)

Sends the crash record as one UDP datagram to a codeplug contact, from the menu or after the restart (Off, Ask, Auto) (crash-log.md 5). Needs the screen

Requiere: CRASH_SCREEN, DMR · Flash: DM-1701 1,440 B · MD-380 1,712* B

the hardware watchdog: started in main(), fed by the idle task, so a hang or a starved system of a few seconds resets the chip (the IWDG on the STM32F4, the SoC's watchdog on the HR_C7000; docs/spec/watchdog.md). With the debug link it also has a bench test (command 0x1D). Off: no watchdog runs, as before. Needs nothing else

Fed by the idle task; a hang or a starved system resets the radio. Timeout about 5 s on the STM32 radios, 4 s on the HR_C7000 radios (watchdog.md)

Requiere: — · Flash: DM-1701 932 B · MD-380 856 B

the fault trace: a CPU fault prints its registers on the host UART, three framed lines a second apart, before the restart (core/crash/crash_trace.c, tools/rfoundry_fault_trace.py; docs/spec/crash-log.md 2.3). Only where the host port is a UART the fault handler can drive polled: the HR_C7000 radios (the STM32 radios' config.mk turn it off: USB only). Off: straight to the record and the restart. Needs nothing else

A CPU fault's registers in three framed lines before the restart, about 600 B (crash-log.md 2.3). The STM32 radios' host port is USB

Requiere: — · Flash: —

the diagnostics page

Requiere: — · Flash: DM-1701 3,752 B · MD-380 3,532 B

16x32 font, only useful on 240 px and wider displays

Only useful at 240 px and wider (MD-380 is 160 px). Anti-aliased on the DM-32 (7.4 KB of glyphs)

Requiere: — · Flash: DM-1701 6,352* B

anti-aliased fonts from 6x12 up (JetBrains Mono Bold, 2 bits a pixel) instead of the bitmap ones: smooth text on color panels. About 5 KB more flash, 12 KB more with FONT_XL; a mono panel draws them as plain ink and gains nothing. On a 4 bpp color panel the edge grays share the 16 palette entries with the screen's colors: some font sizes or colors can be slightly harder to read (docs/spec/ui.md 5)

Smooth text on color panels (measured 2026-10-17); the DM-32's image grew 9.5 KB with it and FONT_XL

Requiere: — · Flash: DM-1701 3,004* B

larger text on 240 px and wider color panels: lists, labels and the status strip in a 9x18 font instead of 8x16 (12% larger, 24 characters a line on a 240 px panel instead of 27). About 3 KB more flash (needs FONT_AA)

9x18 lists and labels on 240 px color panels (needs FONT_AA); 3,588 B on the DM-32 (measured 2026-10-17)

Requiere: FONT_AA · Flash: —

Spanish on the radio (Settings > Display > Language; core/ui/lang/es.po, docs/dev/translating.md). About 28 KB with the lookup and the accented letters of every font (7.5 KB), which the first language brings; each further one adds its text only (about 17 KB)

The first language brings the lookup and the accented letters of every font (about 7.5 KB); the rest is its text. Measured 2026-10-31

Requiere: — · Flash: DM-1701 28,456 B · MD-380 28,348 B

Italian on the radio (core/ui/lang/it.po): off by default, listed dimmed; the web flasher offers it to Italian browsers. About 17 KB with Spanish on

Off by default; measured with Spanish on (its text, and the hashes of strings Spanish leaves untranslated). Alone it costs about as much as Spanish

Requiere: — · Flash: DM-1701 17,304 B · MD-380 17,304 B

the language the radio starts in, until the user picks one in Settings > Display > Language: one switch per language, at most one on (with more, the first listed wins), off = English. Needs that language's switch. No flash cost

The language the radio starts in until the user picks one (needs LANG_ES); the web flasher sets it from its Radio language choice

Requiere: LANG_ES · Flash: DM-1701 0 B · MD-380 0 B

As LANG_DEFAULT_ES (needs LANG_IT)

Requiere: LANG_IT · Flash: DM-1701 0 B · MD-380 0 B

color screen settings: theme, highlight color, filled status bar (off: the dark theme only; for radios whose only screen is monochrome)

Off on the DM-1801 Pro (monochrome screen; 628 B there). Measured 2026-10-17; DM-1701 with LTO 612 B

Requiere: — · Flash: DM-1701 672 B · MD-380 608 B

the Settings menu on the radio (off: settings keep their stored values and are set with qdmr; docs/spec/ui.md)

Requiere: — · Flash: DM-1701 5,304 B · MD-380 5,640 B

the core's storage (settings, codeplug) on SPI NAND: the NOR-like 4 KB sector layer over the board's own block range (drivers/flash/nand_sectors, docs/spec/nand-sectors.md). On in the config.mk of radios whose data flash is SPI NAND (docs/feature-matrix.md); off, such a radio runs on the default settings and stores nothing. Radios with SPI NOR don't use it

For radios whose data flash is SPI NAND: on for the DB25-D (about 6.6 KB flash, 1.5 KB RAM), not in these columns. These radios have SPI NOR and don't use it (nand-sectors)

Requiere: — · Flash: —