디지키에 계속 광고로 뜨길래 간단하게 조사 한번 해봤습니다.

특징은 다음과 같습니다.

- QFP 패키지로 GLCD를 간단하게 연결 가능

- 추가로 외부 SDRAM 장착 가능

- 내부에 3/5/10Mbyte 그래픽,코드 동작용 대용량 SRAM 탑재

- 고속 Cortex-A9 400Mhz

정리해서 

RZ/A1 208P QFP 1개 + 8PIN QuadSPI Serial Flash 외부 장착 1개 또는 2개  : 2층 기판에 800x480 GLCD을 구동 할 수 있는 환경이 나오는 겁니다.

3Mbyte 정도의 양이면 

16bit full color 800x480 에 2layer 구성에 1.5Mbyte 필요 합니다. 

물론 코드 싸이즈와 개별 그래픽 영역 램 구성도 추가로 필요 할듯 하고요.

5Mbyte정도면 걱정없이 쓰겠네요.

홈페이지 게시된 개발 도구나 doc는 여타 반도체 회사보다 많이 빈약해 보이는게 좀...

하지만 일본 자국내에서는 개발보드와 해당 반도체를 이용한 개발이 활발해 보이네요.

Create Superior HMI Designs with Fewer Components

On-chip functions provided by RZ/A1 MPUs reduce BOM cost, save board space and minimize integration tasks. Typical applications like the one shown below take advantage of a rich portfolio of intellectual property from Renesas and can utilize a range of built-in peripherals, including: CMOS camera interface, JPEG Codec Unit, 12-bit ADC, and OpenVG 2D graphics engine, among others.

간혹 시스템 설계시 5V 로직 베이스가 필요한 경우가 있죠...

Kinetis E Series: 5V, Robust Microcontrollers (MCUs) based on ARM® Cortex®-M0+ Cores

The Kinetis E series is the most scalable portfolio of ARM® Cortex®-M0+ MCUs in the industry. Designed to maintain high robustness for complex electrical noise environments and high-reliability applications, the Kinetis E series families offer a broad range of memory, peripheral and package options. They share common peripherals and pincounts allowing developers to migrate easily within an MCU family or between MCU families to take advantage of more memory or feature integration. This scalability allows developers to standardize on the Kinetis E series for their end product platforms, maximizing hardware and software reuse and reducing time-to-market.

Features:

• 32-bit ARM Cortex-M0+ core
• Scalable memory footprints from 8 KB flash / 1 KB SRAM to 128 KB flash / 16 KB SRAM
• Precision mixed-signal capability with on chip analog comparator and 12-bit ADC
• Powerful timers for a broad range of applications including motor control
• Serial communication interfaces such as UART, SPI, I²C, etc.
• High security and safety with internal watchdog and programmable CRC module
• Single power supply (2.7–5.5 V) with full functional flash program/erase/read operations
• Ambient operation temperature range: -40 °C ~ 105 °C

가격싼 Freedom 보드

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-KE02Z

Freescae Kinetis E Series

http://www.freescale.com/webapp/sps/site/taxonomy.jsp?code=KINETIS_E_SERIES&cof=0&am=0

The STM32F756xx devices are based on the high-performance ARM^®Cortex®-M7 32-bit RISC core operating at up to 200 MHz frequency. The Cortex®-M7 core features a single floating point unit (SFPU) precision which supports all ARM® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32F756xx devices incorporate high-speed embedded memories with Flash memory up to 1 Mbyte, 320 KB of SRAM (including 64 KB of Data TCM RAM for critical real time data), 16 KB of instruction TCM RAM (for critical real time routines), 4 KB of backup SRAM available in the lowest power modes, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, a 32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memories access.

All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers, a true random number generator (RNG), and a cryptographic acceleration cell. They also feature standard and advanced communication interfaces.

Please read
Errata Sheet

Download
Data Brief

Key Features

• Core: ARM® 32-bit Cortex®-M7 CPU with FPU, adaptive real-time accelerator (ART Accelerator™) and L1 cache: 4KB data cache and 4KB instruction cache, allowing 0-wait state execution from embedded Flash memory and external memories, frequency up to 200 MHz, MPU, 428 DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions.
• Memories
• Up to 1MB of Flash memory
• SRAM: 320KB (including 64KB of data TCM RAM for critical real time data) + 16KB of instruction TCM RAM (for critical real time routines) + 4KB of backup SRAM (available in the lowest power modes)
• Flexible external memory controller with up to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND memories
• Dual mode Quad SPI
• LCD parallel interface, 8080/6800 modes
• LCD-TFT controller up to XGA resolution with dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D)
• Clock, reset and supply management
• 1.7 V to 3.6 V application supply and I/Os
• POR, PDR, PVD and BOR
• Dedicated USB power
• 4-to-26 MHz crystal oscillator
• Internal 16 MHz factory-trimmed RC (1% accuracy)
• 32 kHz oscillator for RTC with calibration
• Internal 32 kHz RC with calibration
• Sleep, Stop and Standby modes
• V_BATsupply for RTC, 32×32 bit backup registers + 4KB backup SRAM
• 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
• 2×12-bit D/A converters
• General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
• Up to 18 timers: up to thirteen 16-bit (1x low power 16-bit timer available in stop mode) and two 32-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input. All 15 timers running up to 200 MHz. 2x watchdogs, SysTick timer
• Debug mode
• SWD & JTAG interfaces
• Cortex®-M7 Trace Macrocell™
• Up to 168 I/O ports with interrupt capability
• Up to 164 fast I/Os up to 100 MHz
• Up to 166 5 V-tolerant I/Os
• Up to 25 communication interfaces
• Up to 4× I²C interfaces (SMBus/PMBus)
• Up to 4 USARTs/4 UARTs (12.5 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
• Up to 6 SPIs (up to 50 Mbits/s), 3 with muxed simplex I²S for audio class accuracy via internal audio PLL or external clock
• 2 x SAI (serial audio interface)
• 2 × CAN (2.0B Active) and SDMMC interface
• SPDIF-IN interface
• HDMI-CEC
• Advanced connectivity
• USB 2.0 full-speed device/host/OTG controller with on-chip PHY
• USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
• 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII
• 8- to 14-bit parallel camera interface up to 54 Mbytes/s
• Cryptographic acceleration: hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1, SHA-2), and HMAC
• True random number generator
• CRC calculation unit
• RTC: subsecond accuracy, hardware calendar
• 96-bit unique ID

SDFSDFS

요즘 IoT도 그렇고, 저전력이 많이 잇슈화 되는것 같습니다.

Key Features

• STM32L053C8T6 microcontroller featuring 64 KB of flash memory, 8 KB RAM in an LQFP48 package.
• On-board ST-LINK/V2-1 with selection mode switch to use the kit as a standalone ST-LINK/V2-1 (with SWD connector for programming and debugging)
• USB re-enumeration capability: three different interfaces supported on USB
• Virtual com port
• Mass storage
• Debug port
• Board power supply: through USB bus or from an external 5 V supply voltage
• External application power supply: 3 V and 5 V.
• One linear touch sensor or four touch keys.
• IDD current measurement.
• 2.04” E-paper display, 172x72 pixels
• Four LEDs:
• LD1 (red/green) for USB communication
• LD2 (red) for 3.3 V power on
• Two user LEDs: LD3 (green), LD4 (red)
• Two pushbuttons (user and reset)
• Extension header for LQFP48 I/Os for a quick connection to the prototyping board and easy probing.

Image

ST 개발자 분들 요즘 약드시고 힘내서 일하나 봅니다.

좋은 MCU뿐만 아니라 좋은 개발 보드도 열심히 잘 만들고 계시네요.

단돈 만원에 가져 가세요~

MBED 플랫폼 사용하면 컴파일러도 필요 없어요~!!

Automotive용 LS 전선 입니다.

검색 하다보니 차량 DIY하시는 분들이 직접 구해서 쓰시는 것 같아서 한번 찾아 봤는데..

특징이 Low-tension이네요....??

스펙만 보고는 뭐가 좋은지 잘 모르겠습니다...

실제 차량에서 사용하는 케이블이 텐션이 없어서 좀 뻑뻑 하긴 합니다.

이유가 뭘까요?

Datasheet 입니다.

LS_Automotive_Wire&Cable_EN_05.pdf

STM32 저전력 MCU 입니다.

LCD 인터페이스에 Analog Comparator, OPAMP까지 들어 있고,

EEPROM도 들어 있네요.

CORTEX-M3 Platform 그대로 활용 할 수 있어서 저전력 기기 구성시 사용하면 좋을 듯 합니다.

The STM32L-DISCOVERY and 32L152CDISCOVERY kits help you to discover the STM32L ultra low power features and to develop and share your applications.

They are based on an STM32L152RBT6 and an STM32L152RCT6, respectively; and include an ST-Link/V2 embedded debugging tool interface, an LCD (24 segments, 4 commons), LEDs, pushbuttons, a linear touch sensor or touchkeys.

Download
Data Brief

Key Features

• STM32L152RBT6 (128 KB Flash memory, 16 KB RAM, 4 KB EEPROM) or STM32L152RCT6 (256 KB Flash memory, 32 KB RAM, 8 KB EEPROM) microcontroller in an LQFP64 package
• On-board ST-Link/V2 with selection mode switch to use the kit as a standalone ST-Link/V2 (with SWD connector for programming and debugging)
• Board power supply: through USB bus or from an external 3.3 or 5 V supply voltage
• External application power supply: 3 V and 5 V
• I_DD current measurement
• LCD
• DIP28 package
• 24 segments, 4 commons
• Four LEDs:
• LD1 (red/green) for USB communication
• LD2 (red) for 3.3 V power on
• Two user LEDs, LD3 (green) and LD4 (blue)
• Two pushbuttons (user and reset)
• One linear touch sensor or four touchkeys
• Extension header for LQFP64 I/Os for quick connection to prototyping board and easy probing 
• 
  

STM32L 계열은 MicroXplorer 프로그램으로 아래와 같이 예상 Power Consumption을 예측 할 수 있네요.

Atmel-8535-SEEPROM-AT25320B-640B_Datasheet.pdf

1. Unprotected Block은 HW nWP신호와 Status Register의 WPEN과 상관없이 WEN으로만 Write 권한을 관리 함.

2. Protected Block은 이미 Status Register에서 BP1, BP0으로 관리가 되기 시작하면 HW nWP, WEN과 상관없이 어떤 

   조건에서도 Write 가 안됨.

3. Protected, Unprotected을 설정하기 위해 Status Register을 Write 하기 위해서는 WPEN이 0일때는 WEN만으로 Write 

    가능하고, WPEN이 1일때는 WEN과 nWP가 같이 조건이 맞아야 Write 가능함.

시간이 걸려도 데이터를 귀신같이 보호 하려면

문제는 WPEN, BP1, BP0 도 같은 EEPROM 메모리 구성이라서 반복적인 Write에는 장사 없다는거...

모든 cell에 각각 제어 할때마다 WPEN, BP1, BP0 같이 RW을 반복하면 훨씬 빨리 수명이 끝날 수 있다는...

-->

      1. WEN(1)

      2. nWP(H)

      3. WPEN(0), BP1(0), BP0(0)

      4. Data Write

      5. WPEN(1), BP1(1), BP0(1)

      6. nWP(L)

      7. WEN(0)

합리적으로 하려면 아래와 같이.. 아니면 WPEN을 최소한으로 하던지..Self Power off System이면 가능.

이전에 WPEN(0, BP1(0), BP0(0) 한번만 만들어 놓고 이후부터는 

-->

     1. WEN(1)

     2. Data Write

     3. WEN(0)

기존 ST-LINK에서 Digital Isolation을 추가한 버젼 이네요..

일반 접지공사된 랩실에서는 별 탈 없이 사용 중인데요.

혹시나 필드에서 JTAG이 자꾸 죽어버리거나, 보드가 죽거나, 모터쪽 고전압 회로와 같이 사용되는

보드에서는 좀 안심하고 사용 할 수 있겠네요. 

가격은 일반 ST-LINK 보다 3.5배 비싸네요.

The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32 microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces are used to communicate with any STM8 or STM32 microcontroller located on an application board.

In addition to providing the same functionalities as the ST-LINK/V2, the ST-LINK/V2-ISOL features digital isolation between the PC and the target application board. It also withstands voltages of up to 2500 VRMS.

STM8 applications use the USB full speed interface to communicate with STMicroelectronic’s ST Visual Develop (STVD) or ST Visual Program (STVP) software.

STM32 applications use the USB full speed interface to communicate with Atollic, IAR, Keil or TASKING integrated development environments