artery - SKILL.md Agent Skill

name: artery description: Artery Technology MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Artery AT32 MCUs (STM32-compatible ARM Cortex-M4) or ArteryHandler.

Artery Technology Manufacturer Skill

MPN Structure

Artery MCUs follow a structure similar to STM32:

AT32[FAMILY][SERIES][VARIANT][PIN][FLASH][PKG][TEMP]
│      │       │       │       │     │      │     │
│      │       │       │       │     │      │     └── Temperature (6/7)
│      │       │       │       │     │      └── Package (T=LQFP, U=QFN, H=BGA)
│      │       │       │       │     └── Flash size (4=16KB...M=4096KB)
│      │       │       │       └── Pin code (C=48, R=64, V=100, Z=144)
│      │       │       └── Optional variant (A, etc.)
│      │       └── Series number (403, 413, 415, 421, 435, etc.)
│      └── Family (F=MCU, WB=Wireless)
└── AT32 prefix

Example Decoding

AT32F403AVCT7
│   │  │ ││││
│   │  │ │││└── Temp 7 (industrial extended, -40 to +105C)
│   │  │ ││└── Package T (LQFP)
│   │  │ │└── Flash C (256KB)
│   │  │ └── Pin V (100-pin)
│   │  └── Variant A
│   └── Series 403 (high performance)
└── F = MCU family

AT32WB415CCU6
│     │  │││
│     │  ││└── Temp 6 (industrial, -40 to +85C)
│     │  │└── Package U (QFN)
│     │  └── Flash C (256KB)
│     └── Pin C (48-pin)
└── WB415 = Wireless (Bluetooth LE)

Package Codes

Package Type (2nd from last character)

Code	Package
T	LQFP
U	QFN
H	BGA

Pin Count (4th from last character)

Code	Pin Count
K	32
T	36
C	48
R	64
V	100
Z	144
I	176

Flash Size Encoding (3rd from last character)

Code	Flash Size
4	16KB
6	32KB
8	64KB
B	128KB
C	256KB
D	384KB
E	512KB
G	1024KB
M	4096KB

Temperature Grades (last character)

Code	Range	Description
6	-40 to +85C	Industrial
7	-40 to +105C	Industrial Extended

Product Series

High Performance (AT32F403, AT32F407)

Series	Core	Clock	Features
AT32F403	Cortex-M4	240MHz	High performance, up to 1MB Flash
AT32F403A	Cortex-M4	240MHz	Enhanced AT32F403
AT32F407	Cortex-M4	240MHz	Ethernet + CAN

Mainstream (AT32F413, AT32F415)

Series	Core	Clock	Features
AT32F413	Cortex-M4	200MHz	Mainstream, cost-effective
AT32F415	Cortex-M4	150MHz	USB OTG support

Value Line (AT32F421, AT32F423, AT32F425)

Series	Core	Clock	Features
AT32F421	Cortex-M4	120MHz	Entry-level
AT32F423	Cortex-M4	150MHz	Enhanced value
AT32F425	Cortex-M4	96MHz	USB device

High-Performance Plus (AT32F435, AT32F437)

Series	Core	Clock	Features
AT32F435	Cortex-M4	288MHz	High-perf, up to 4MB Flash
AT32F437	Cortex-M4	288MHz	High-perf + Ethernet

Wireless (AT32WB415)

Series	Core	Clock	Features
AT32WB415	Cortex-M4	150MHz	Bluetooth LE 5.0

Handler Implementation Notes

Package Code Extraction

// Package type is 2nd from last character
// AT32F403AVCT7 -> T = LQFP
char packageChar = upperMpn.charAt(upperMpn.length() - 2);
String packageType = MCU_PACKAGE_CODES.get(packageChar);

// Combine with pin count for full package name
int pinCount = extractMCUPinCount(upperMpn);
return packageType + pinCount;  // e.g., "LQFP100"

Pin Count Extraction

// Pin code is 4th from last character
// AT32F403AVCT7 -> V = 100 pins
char pinCode = upperMpn.charAt(upperMpn.length() - 4);
Integer pinCount = MCU_PIN_COUNTS.get(pinCode);

Flash Size Extraction

// Flash code is 3rd from last character
// AT32F403AVCT7 -> C = 256KB
char flashCode = upperMpn.charAt(upperMpn.length() - 3);
Integer flashSize = MCU_FLASH_SIZES.get(flashCode);

Series Extraction

// AT32WB must be checked before AT32F
if (upperMpn.startsWith("AT32WB415")) return "AT32WB415";

// Standard series extraction
if (upperMpn.startsWith("AT32F403")) return "AT32F403";
if (upperMpn.startsWith("AT32F407")) return "AT32F407";
// etc.

Official Replacement Logic

// Same series AND same pin count = valid replacement
// Flash size, package type, and temperature can differ

String series1 = extractSeries(mpn1);
String series2 = extractSeries(mpn2);
if (!series1.equals(series2)) return false;

int pins1 = extractMCUPinCount(mpn1);
int pins2 = extractMCUPinCount(mpn2);
return pins1 == pins2;

Related Files

Handler: manufacturers/ArteryHandler.java
Component types: MICROCONTROLLER, IC

STM32 Compatibility

Artery AT32 MCUs are designed as enhanced STM32-compatible alternatives:

AT32 Series	STM32 Equivalent	Advantages
AT32F403A	STM32F103	Higher clock (240 vs 72MHz)
AT32F407	STM32F107	Higher clock, more Flash
AT32F413	STM32F103	Better price/performance
AT32F415	STM32F105	USB OTG compatible
AT32F421	STM32F030	Cortex-M4 vs M0
AT32F435/437	STM32F4xx	Up to 4MB Flash

Important: While register-compatible for most peripherals, always verify critical functionality when migrating from STM32.

Variant Suffixes

Some series have variant letters after the series number:

Variant	Meaning
A	Enhanced version (e.g., AT32F403A)
(none)	Standard version

Learnings & Edge Cases

Position-based extraction: Package at -2, flash at -3, pin at -4 from end
4MB Flash: AT32F435/437 support M=4096KB, larger than most STM32
AT32WB prefix: Wireless series uses WB instead of F in family position
240MHz+ clocks: Artery MCUs often have higher clock speeds than equivalent STM32
Variant letter optional: AT32F403 and AT32F403A are different series
Temperature 7 is extended: Goes to +105C vs standard industrial +85C
STM32 migration: Pin-compatible but verify peripheral registers for critical functions