STMicroelectronics STEVAL-CCM001V1

Overview

STEVAL-CCM001V1 from STMicroelectronics is a digital photo frame demonstration board built around the STM32F103RB Cortex-M3 microcontroller, featuring a 2.4" 320×240 TFT LCD driven via SPI2, Micro SD card interface via SPI1, USB mass-storage support, on-board JTAG for firmware updates, and dual-axis/3-axis MEMS orientation sensing for automatic image rotation.

For engineers reviewing the STEVAL-CCM001V1 datasheet, STEVAL-CCM001V1 pinout, STEVAL-CCM001V1 application, or STEVAL-CCM001V1 equivalent, this board serves as a validated reference design for embedded JPEG slideshow systems with battery/USB power flexibility, MEMS-based UI interaction, and FAT16/FAT32 file system integration on resource-constrained MCUs.

Technical Context

The board implements a complete standalone digital photo frame using the STM32F103RB (72 MHz ARM Cortex-M3, 128 KB Flash, 20 KB RAM), enabling real-time JPEG decompression within its limited RAM budget and supporting FAT16/FAT32 file navigation from Micro SD cards.

It integrates multiple peripheral subsystems: SPI-driven TFT display and SD card, I²C-connected LIS3LV02DQ and LIS202DL MEMS accelerometers, USB 2.0 full-speed interface with ESD protection (USBLC6), and a rechargeable Li-ion battery management circuit with L6924D charger IC and L6920D DC-DC converter.

Key Specifications

Availability

STEVAL-CCM001V1 is available at Aetrix Electronics and suitable for embedded visual display prototyping, MEMS-based UI development, and low-power battery-operated image playback applications requiring stable component supply and legacy reference design validation.

Supply support for STEVAL-CCM001V1 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, designing and manufacturing microcontrollers, analog ICs, power devices, sensors, and automotive electronics for industrial, consumer, and automotive markets.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built demonstration platforms that validate real-world use cases for ST microcontrollers and companion analog/power/sensor components, targeting rapid proof-of-concept and firmware development.

FAQ

Does STEVAL-CCM001V1 support JPEG decoding without external memory?

Yes. The board relies entirely on the STM32F103RB's 20 KB of embedded SRAM to perform JPEG decompression using ST's optimized software library. No external SDRAM or PSRAM is required, making it a self-contained implementation for resource-constrained MCU-based displays.

Can the MEMS accelerometers be used simultaneously for orientation detection?

Yes. Both the LIS3LV02DQ (2-axis) and LIS202DL (3-axis) are independently connected to the I²C bus (I2C1) with separate chip-select and interrupt lines (PC0_INT, PC1_INT), allowing concurrent initialization and orientation fusion in firmware without hardware conflict.

Is USB mass-storage functionality enabled by default?

Yes. The board implements USB device stack firmware that enumerates as a USB Mass Storage Class (MSC) device when connected to a host PC, enabling direct drag-and-drop JPEG file transfer to the Micro SD card without custom drivers or additional software tools.

What power sources can sustain operation during image playback?

The board operates from either USB 5 V (via mini-B connector) or a single-cell Li-ion battery (3.0–4.2 V) charged through the L6924D IC. Regulated 3.3 V is maintained across all peripherals during playback, with brown-out detection and battery voltage monitoring (VBAT1, ST1/ST2 pins).