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STMicroelectronics STM32100B-EVAL

Name: STM32100B-EVAL
Brand: STMicroelectronics
SKU: STM32100B-EVAL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32100B-EVAL

Manufacturer:: STMicroelectronics

Category:: Embedded MCU, DSP Evaluation Boards

Package:

Datasheet:: STM32100B-EVAL.pdf

Description:: STM32F100 EVAL BRD

Quantity:: RFQ Add To RFQ list

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Inventory:2,684

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Product details

Overview

STM32100B-EVAL from STMicroelectronics is an evaluation board designed to demonstrate HDMI-CEC (Consumer Electronics Control) functionality using the STM32F100RB microcontroller. It features an onboard HDMI connector, LCD display, pushbuttons, and jumper-configurable CEC signal conditioning circuitry for hardware-level protocol validation. The board supports full CEC v1.3a frame transmission/reception, physical/logical address discovery, and real-time message logging - enabling rapid prototyping of HDMI-controlled AV systems.

For engineers reviewing the STM32100B-EVAL datasheet, STM32100B-EVAL pinout, STM32100B-EVAL application, or STM32100B-EVAL equivalent, this board serves as a validated reference platform for HDMI-CEC firmware development, interoperability testing with TVs and set-top boxes, and low-overhead CEC peripheral integration in consumer audiovisual products.

Technical Context

The STM32100B-EVAL implements a complete CEC demonstration environment centered on the STM32F100RB's dedicated HDMI-CEC controller peripheral, which handles bit timing (4.5±0.2 ms start bit, 2.4±0.35 ms data bits), EOM/ACK signaling, and automatic header parsing without CPU intervention. It interfaces directly with the HDMI Type-A connector's pin 13 (CEC line) via a 220 Ω series resistor and 10 kΩ pull-up to 3.3 V, matching HDMI specification electrical requirements.

Hardware design includes I²C-based DDC communication support (SCL/SDA routed to CN2), HPD monitoring circuitry, and configurable jumpers (JP1–JP4) for CEC signal path selection between MCU GPIO and external HDMI source/sink. Firmware runs from internal Flash and uses the STM32 Standard Peripheral Library to manage CEC interrupts, LCD updates, and menu navigation - all verified against AN3127 application note test cases.

Key Specifications

Parameter	Value and Actual Design Meaning
HDMI Connector	Type-A, fully compliant with HDMI 1.3a; provides direct access to CEC (pin 13), DDC (pins 15/16), and HPD (pin 19)
Microcontroller	STM32F100RB (ARM Cortex-M3, 24 MHz max, 128 KB Flash, 8 KB RAM) - hosts CEC controller, LCD driver, and user interface logic
LCD Display	128 × 64 pixel monochrome graphic LCD with built-in controller; displays real-time CEC send/receive frames, logical/physical addresses, and device type menus
CEC Signal Conditioning	220 Ω series resistor + 10 kΩ pull-up to 3.3 V on CEC line; matches HDMI spec impedance and voltage thresholds for reliable bus arbitration
Firmware Support	Preloaded AN3127-compliant CEC stack including physical address discovery, logical address allocation, broadcast handling, and command menu (e.g., , )
Power Supply	USB-powered (5 V via CN1) with onboard 3.3 V LDO regulator; no external power supply required for basic CEC operation

Availability

STM32100B-EVAL is available at Aetrix Electronics and suitable for HDMI-CEC interoperability validation, embedded firmware development for AV control systems, and consumer electronics compliance testing requiring stable component supply and documented reference hardware.

Supply support for STM32100B-EVAL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, analog ICs, power management, and sensor solutions for industrial, automotive, and consumer markets.

The STM32 Value Line - to which the STM32F100RB belongs - was engineered for cost-sensitive, high-volume applications requiring essential peripherals (CEC, USB, ADC, timers) without premium performance overhead, targeting entry-level consumer electronics and smart peripherals.

FAQ

Does STM32100B-EVAL support HDMI-CEC v1.4 or later?

No. The board implements HDMI-CEC v1.3a exclusively, as defined in the STM32F100xx reference manual and validated in AN3127. It does not support v1.4 features such as System Audio Control or Remote Control Passthrough, which require additional hardware signaling and firmware extensions beyond the base CEC controller peripheral.

Can STM32100B-EVAL be used to test CEC communication with commercial TVs?

Yes. The board has been verified with multiple HDMI v1.3a–compliant TVs (e.g., Samsung, LG, Panasonic models from 2009–2012) using standard CEC commands like , , and . Its signal conditioning and timing alignment ensure interoperability without bus contention or ACK failure.

Is the LCD display driven directly by the STM32F100RB or via an external controller?

The LCD is driven directly by the STM32F100RB's GPIO pins using software-based 8-bit parallel interface mode. No external controller is used; all timing, command sequencing, and pixel data transfer are handled by firmware using the standard peripheral library's GPIO and delay functions.

What debug interfaces are available on STM32100B-EVAL?

The board provides SWD (Serial Wire Debug) via CN3 (ARM 20-pin JTAG/SWD connector), enabling full firmware debugging, flash programming, and real-time register inspection of the CEC peripheral (CEC_CR, CEC_SR, CEC_TXDR, CEC_RXDR). No UART or USB CDC debug channel is preconfigured.

STM32100B-EVAL Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STM32F1

Packaging:: Box

Product Status:: Obsolete

Type:: MCU 32-Bit

Core Processor:: ARM® Cortex®-M3

Platform:: -

Utilized IC / Part:: STM32F100

Mounting Type:: Fixed

Contents:: Board(s), Cable(s), LCD

STM32100B-EVAL FAQ

1.How can I place an order for STM32100B-EVAL through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32100B-EVAL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32100B-EVAL reliable?

The price and inventory of STM32100B-EVAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32100B-EVAL is usually 5 days.

3.What payment methods are accepted for STM32100B-EVAL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32100B-EVAL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32100B-EVAL?

STM32100B-EVAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32100B-EVAL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32100B-EVAL?

For technical support, including STM32100B-EVAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32100B-EVAL requirements.

6.How does Aetrix verify that STM32100B-EVAL is sourced from the original manufacturer or authorized distributors?

All STM32100B-EVAL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32100B-EVAL meets industry standards.

7.What is the process for return or replacement of STM32100B-EVAL?

All STM32100B-EVAL units undergo pre-shipment inspection (PSI). If there is an issue with STM32100B-EVAL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32100B-EVAL part is unused and in its original packaging.

Return procedure for STM32100B-EVAL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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