ErrLookup › embassy-rs/embassy

embassy-rs/embassy

Modern embedded framework, using Rust and async. · Rust · 897 source files

Analyzed at 463a07b963 on 2026-09-10. 265 documented errors.

Code / Message	Type	Severity	Tags
DMA address error	panic	error
init called more than once!	panic	error
invalid burst size	panic	error	embedded, dma, stm32, unimplemented
Waker not present for GPIO pin	panic	error
InterruptExecutor::start() called multiple times on the…	panic	error
SpawnToken instances may not be dropped. You must pass them…	panic	error
Invalid GPIO port index	panic	error
Waker not present for GPIO port	panic	error
Partition size must be a multiple of read, write and erase…	panic	error
ipv6 support not enabled	panic	error	network, embedded, ipv6, feature-flags
InterruptExecutor::spawner() called on uninitialized…	panic	error
heartbeat from esp32 stopped	panic	critical	embedded, esp32, wifi, hardware, panic
CRACEN RNG health test failed	panic	critical	rng, embedded, nrf, cracen, entropy, security
EVENT_CHANNEL not initialized	panic	critical	embedded, stm32, ble, initialization-order, panic
Could not find any timer	panic	error	build-script, embedded, timer, panic, rust
unwrap of ` ` failed	panic	error	embedded, panic, unwrap, macro, nrf
TRNG: consecutive health check failures. Increase…	panic	error	embedded, rp235x, trng, random, hardware
Consecutive read operations are not supported!	panic	error	embedded, i2c, twim, nrf, panic
not implemented	panic	error	embedded, stm32, dts, temperature, unimplemented
MSIx auto-calibration is enabled for a source that has not…	panic	error	rust, embedded, stm32, rcc, clock-config, panic
ErevidIsZero	panic	critical	embedded, rust, ethernet, spi, hardware, panic
Enabling OsTimer clock should not fail	panic	error	embedded, mcx, clock-config, panic, time-driver
MCLK frequency < 9.5 MHz is not compatible with the TRNG	panic	error	embedded, rust, trng, clock-config, panic
Embassy is configured as dual-bank, but the hardware is…	panic	error	embedded, stm32, flash, hardware-config, panic
Bad mode	panic	error	embedded, can, panic, invalid-state
WatchdogChannels::All is not supported for AWD2; use…	panic	error	embedded, stm32, adc, watchdog, panic
Can only take the executor once	panic	critical	embedded, rust, panic, executor, singleton
Bad Mode	panic	error	embedded, stm32, can, bxcan, panic, concurrency
Invalid FilterConfig (TooManyFilters)! A FilterConfig must…	panic	error	embedded, rust, can, filter, capacity-limit
Failed to apply workaround for UART	panic	critical	embedded, uart, nrf, errata, hardware-workaround, panic
Maximal allowed frequency for ADC4 is	panic	error	embedded, stm32, adc, clock-config, rust
All pins must either be <32 or >=16, in	panic	error	pio, embedded, gpio, config, rust
attempted to use peripheral	panic	error	rcc, clock-mux, stm32, runtime-panic
cursed bit offset	panic	error	build-script, bitfield, metadata, stm32
DMA: error on DMA@ channel	panic	critical	embedded, dma, panic, interrupt, hardware-error
MDMA: max block count hit	panic	error	dma, mdma, panic, embedded, buffer-size, factorization
unwrap of ` ` failed	panic	error	rust, embedded, unwrap-panic, macro
EEPROM regions for chip	panic	error	embedded, stm32, build-time, eeprom, rust
out of memory	panic	error	embedded, memory, allocator, panic, nrf91
unsupported configuration	panic	error	spi, i2s, embedded, panic
ipv4 support not enabled	panic	error	embedded, rust, networking, tcp, feature-flags, panic
Boot prepare error	panic	critical	embedded, bootloader, firmware-update, panic, nrf
The read size for the concatenated flashes must be the same	panic	error	embedded, flash, compile-time, panic, const-eval
Maximal allowed frequency for the ADC is	panic	error	embedded, stm32, adc, clock-config, rust
you can only call `interface/interface_alt` after…	panic	error	usb, embedded, panic, descriptor-builder
Embassy is configured as single-bank, but the hardware is…	panic	critical	embedded, stm32, flash, build-configuration, panic
Invalid PIO_NO: , expected one of 0,1,2	panic	error	pio, embedded, rust, internal
AHB frequency is too low	panic	error	embedded, usb, clock-config, nxp, panic
Embassy is configured as single-bank, but the hardware is…	panic	critical	embedded, stm32, flash, build-configuration, panic
IC2 is not ready to be selected as system clock source…	panic	error	rust, embedded, rcc, clock-config, stm32n6
Period cannot exceed	panic	error	embedded, rp2040, watchdog, timeout
Tried to select , which is not available on this device	panic	error	build-script, cargo-features, stm32, compile-time-panic
Invalid ADC channel side	panic	error	embedded, build-script, codegen, adc, nxp, panic
Pin has no IOMUXC definitions	panic	error	embedded, build-script, codegen, nxp, metadata, panic
read error	panic	error	linux, tun-tap, network, io-error, panic
Embassy is configured as single-bank, but the hardware is…	panic	error	rust, embassy, embedded, stm32, flash, build-configuration
USB clock should be one of 16, 19.2, 20, 24, 26, 32Mhz but…	panic	error	embedded, stm32, usb, rcc, clock-config, panic
PKA initialization failed	panic	error	embedded, stm32, pka, crypto, initialization, panic
UART DMA reported invalid `write_addr`	panic	critical	uart, dma, embedded, panic, rp2040
alloc_endpoint_in failed	panic	critical	rust, embedded, usb, allocation
QSPI data is empty, so the data width should be NONE	panic	error	rust, embedded, qspi, panic, invalid-configuration
DSI requires configured HSE	panic	error	embedded, rcc, clock-config, panic
Implementation is limited to	panic	error	embedded, stm32, adc, rust
invalid word size	panic	error	embedded, dma, stm32, word-size, unimplemented
PKA error	panic	critical	rust, embedded, stm32, pka, crypto, hardware-fault
DMA data error	panic	critical	embedded, rust, dma, interrupt, panic
bad dma channel kind	panic	error	dma, build-script, metadata, stm32
RTS and CTS pins must be either both set or none set.	panic	error	embedded, uart, nrf, pin-config, panic
Unknown value	panic	error	embedded, rust, ethernet, register-map, panic
divide by zero error when dividing duration by scalar	panic	error	arithmetic, duration, divide-by-zero, panic
Selected output pixel format not supported	panic	error	embedded, rust, dma2d, graphics
transmit error	panic	error	linux, tun-tap, network, io-error, panic
Extended Filter Slot Too High!	panic	error	embedded, can, panic, range-check
LSE frequency more than 5% off from 32.768 kHz, cannot use…	panic	error	rust, embedded, stm32, rcc, clock-config, panic
the AES is in use	panic	error	embedded, stm32, aes, concurrency, mutex, panic
time-driver-any requested, but the chip doesn't have a TIM…	panic	error	build-script, cargo-features, stm32, time-driver
reserved PLL source not allowed	panic	error	rust, embedded, rcc, pll, stm32n6
does not support use as a time driver on this chip yet…	panic	error	build-script, stm32, unsupported-hardware, time-driver
failed to find dma interrupt for channel	panic	error	dma, interrupt, build-script, metadata
The top value cannot be changed after the initialization.	panic	error	rust, embedded, pwm, lpc55, unsupported-operation
Lcd clock error	panic	error	rust, embedded, stm32, lcd, clock-config
PLL is unavailable in voltage range 2	panic	error	rcc, embedded, panic, voltage-range, pll
Partition offset must be a multiple of read, write and…	panic	error	embedded, flash, partition, panic, alignment
HCLK results in MDC clock > 2.5MHz even for the highest CSR…	panic	error	embedded, rust, ethernet, clock-config, stm32
the RNG is in use	panic	error	embedded, rng, concurrency, mutex, panic
could not parse mul/div. enum=	panic	error	build-script, parsing, rcc, metadata
MCLK frequency > 160 MHz is not compatible with the TRNG	panic	error
No mspm0xx/mspsxx Cargo feature enabled	panic	error	rust, build-script, cargo-features, embedded, compile-time
DMA: error on DMA_0 channel	panic	critical	embedded, dma, lpc55, nxp, interrupt, panic
USB clock should be 48Mhz but is	panic	error	embedded, stm32, usb, rcc, clock-config, panic
Embassy is configured as single-bank, but the hardware is…	panic	error	rust, embassy, embedded, stm32, flash, build-configuration
Ethernet PTP clock already started	panic	error	embedded, rust, ethernet, ptp, api-misuse
overflow when adding duration to instant	panic	error	rust, embedded, overflow, time
No mimxrt/lpc Cargo feature enabled	panic	error	embedded, cargo, build-script, feature-flags, nxp
Passphrase is too short or too long	validation	error	embedded, wifi, wireless, panic, validation
Incorrect Vrs setting!	panic	error	embedded, stm32, panic, config
take called more than once!	panic	error	embedded, ownership, peripheral, rust
must not select PLL source as DISABLE	panic	error	rust, embedded, rcc, clock-config, panic
MSI is not ready to be selected as CPU clock source	panic	error	rust, embedded, rcc, stm32n6, msi, panic
Multiple stm32xx Cargo features enabled	panic	error	build-script, cargo-features, embedded, stm32