Zvika Rozenshein,General Manager, EngineeringIQ
- 1. May 9, 2016 1 Zvika Rozenshein EngineeringIQ
- 2. May 9, 2016 2 Introduction/Embedded Systems • Uses a computer to perform certain functions • Conceived with specific application in mind • examples: dash controller in automobiles, remote controller for robots, answering machines, etc. • IoT, Control type of applications • Design consists of hardware components and software programs that execute on the hardware platforms. • Hardware-Software Co-Design ?
- 3. May 9, 2016 3 Why Co-Design? • Reduce time to market • Achieve better design • Explore alternative designs • Good design can be found by balancing the HW/SW • To meet strict design constraint • power, size, timing, and performance trade-offs • safety and reliability • system on chip
- 4. May 9, 2016 4 Concurrent design Traditional design HW SW start Designed by independent groups of experts Concurrent (Co-Design) start HW SW Designed by Same group of experts with cooperation
- 5. May 9, 2016 5 Basic Design Systems • Must-have components: – Schematic entry – Spice simulation for passive and active components – Most systems also include PCB design capabilities • Popular products:
- 6. May 9, 2016 6 Common Capabilities Schematic Capture Measurement & Analysis Digital Logic Basic Electricity Analog Electronics Simulation Connectivity 3D Models PCB Layout Visualization & MCAD PCB Design Constraint Driven Layout Design for Manufacture End-to-End Engineering
- 7. May 9, 2016 7 What about Embedded ? Schematic Capture Measurement & Analysis Simulation Connectivity 3D Models PCB Layout Visualization & MCAD Traditional SPICE Simulators don’t support micro-controllers !
- 8. May 9, 2016 8 Possible Solutions • Use a Bus Functional Model (BFM) of the MCU – Encapsulates the bus functionality of a processor • Can execute bus transactions on the processor bus (cycle accurate) • Cannot execute any instructions – BFM is an abstract model of processor that can be used to verify how a processor interacts with its peripherals SWSW HWHWHWSW C/C++ BFM
- 9. May 9, 2016 9 Possible Solutions • Use an Instruction-Set Simulator (ISS) – Processor model capable of simulating the execution of instructions – Different types of ISS for different purposes • Usage 1: Verification of applications written in assembly-code – For fastest speed: translate target assembly instructions into host processor instructions » Is not cycle-accurate. Specially for pipelined and superscalar architectures
- 10. May 9, 2016 10 Possible Solutions • Use an Instruction-Set Simulator (ISS) – Usage 2: Verification of timing and interface between system components • Used in conjunction with a BFM • ISS should be timing-accurate in this usage – ISS often works as an emulator – For performance estimation usage, ISS is to provide accurate cycle-counting
- 11. May 9, 2016 11 Possible Solutions • What is a Carbon Model? – A high performance software object – Generated by proprietary compiler from synthesizable RTL design files – Contains cycle-accurate & register- accurate description of hardware design • Using a Carbon Model – Linked with gcc (or Microsoft VC++) – Libcarbon5.so & carbon_capi.h are part of installation on Linux – Simulator communicates with hardware model through sockets using carbon_capi.h • However – execution speed is a major problem!
- 12. May 9, 2016 12 Proteus VSM is the Answer Schematic with MCU Firmware Design Measurement & Analysis Debugging & Diagnostics Mixed Mode ProSPICE Simulation
- 13. May 9, 2016 13 + Strong PCB Design Capability 10-15 db Gain, ~4k Cut-off Frequency To analyze the circuit we’ll want to : Provide an input signal. Plot the output waveform. Change component values to tune the filter. Simple Filter Breakout Board
- 14. May 9, 2016 14 Supported MCU Families Freescale MC68HC11 family. Atmel® ATTINY, ATMEGA and Cortex™-M3 families. Includes full Arduino support ! NXP ARM® LPC2000 family, ARM7TDMI, Cortex™-M0 and Cortex™-M3 models. Microchip Technologies™ PIC10, PIC12, PIC16, PIC18, PIC24 & dsPIC33 families. Generic 8051, 8052, NXP (P87C51xxx) and Atmel® (AT89Cxxx) families. Proteus VSM Supports: Texas Instruments™ MSP430® Family, Cortex™-M3/LM3S and PICCOLO™ TMS320.
- 15. May 9, 2016 15 Microcontroller Models Proteus VSM Microcontroller Models: Instruction Set Simulated All pin and I/O operations All Timers in all modes UART/USART/EUSART Interrupts and priorities (inc. VIC) SPI / SSI in all modes PSP or PMP in all modes MSSP in all modes ADC inc. Voltage Ref. pins CCP/ECCP in all modes I2C/TWI as master/slave Analog Comparator in all modes External Memory Real Time Clock in all modes Memory Accelerator Module PWM Module in all modes USB Device module CTMU, CLC, PPS and others.
- 16. May 9, 2016 16 The Peripheral Models Thousands of TTL, CMOS, passives etc. Interactive models for POTs, switches, ... Ethernet Controller Models OptoElectronic Models (LED, LCD, TFT, …) Motor Control Models Memory Models Temperature Control Models Real Time Clocks and Timekeeping I2C / SPI Protocol peripherals 1-Wire Protocol peripheral models RS232/RS485/RS422 Protocol ADC / DAC Converter Models Pulse Width Control Models Power Management Models Laplace Primitive Models Many, Many more…
- 17. May 9, 2016 17 Examples (1) Arduino AVR writing bitmap to TFT Display
- 18. May 9, 2016 18 Examples (2)
- 19. May 9, 2016 19 Examples (3)
- 20. May 9, 2016 20 Visual Designer Module – Firmware design with Flow-Chart! Example - PIR Night Light 10uF1k A2 2 1 4 3 Grove Luminance Sensor 2,3 1 APDS-9002 Grove LED LED-GREEN 330 D3 2 1 4 3 A0 2 1 4 3 21.0 VO 1 VCC 3 GND 2 GP2Y0A21YK0F Grove Infrared Proximity Sensor
- 21. May 9, 2016 21 Example - TFT Display & SD Card IM0 IM1 IM2 IM3 RES CS WR/D/C RD TE SDI/SDA SDO HSYNC VSYNC DOTCLK DE EXTC D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D/C/SCL LEDK LEDA LCD1 ILI9341 IO9 IO10 SCK MOSI MISO IL9341 TFT Display SDCard CS DI DO CLK SD1 SD SCK MISO MOSI IO4 SD Card
- 22. May 9, 2016 22 References Dr. Rabi Mahapatra - Professor in the Department of Computer Science and Engineering at Texas A&M. Labcenter Electronics Ltd: • www.labcenter.com • sales@labcenter.com EngineeringIQ Israel – הנדסית עצה • Zvika Rozenshein רוזנשיין צביקה • www.eng-iq.com • support@eng-iq.com • (M) +972-52-6132275
Editor's Notes
- #13: Now we can add : Microcontroller Architecture module. Embedded Systems Module. Modern Interconnect protocols module Etc. etc. We do all of the preceding stuff well, but we do this exceptionally well and nobody else comes close. This is our USP.
- #18: File Menu – Open Sample – Bitmap drawing on TFT LCD. Time to show some cool stuff… Could show exclude from simulation option on edit component dialogue for connector here…. This one can also show the PCB and the 3DV – is end to end.
- #19: Note : This works on a local machine only if the ethernet driver is installed (Program Files group -> Labcenter electronics -> Virtual Network Drivers). This installs both winpcap driver and also a switchback adapter which lets you work on a local machine. If on the domain (where DHCP is implicit), the switchback adapter isn’t needed. (Failing all else, you can install winpcap from their website). Press play , wait for the new IP address, then browse to it and play. Possibly worth explaining simulation only design here …. Connectors are not included because they don’t simulate ! Power is implicit here via power terminals and power rail configuration dialogue (refer then to PIC10 TB085 sample if need be for SMPS).
- #20: File menu – open sample (search for Linux). Goto dungeons and dragons so type … Ls Cd bin Dungeon Then, ‘open mailbox’, ‘read leaflet’ etc.
- #21: This project has some external Grove peripherals – Light Sensor, Proximity Sensor and LED. A simple flowchart ensures that the light comes on only when something is near (d <= 20cm) and it is dark (cloud covers the sun). You can build/draw this one in front of the audience, which will show them how to pick/add peripherals as well as how we handle variables and decisions.
- #22: The TFT display driver makes use of the AdaFruit_GFX library and presents an easy to use set of methods ready to drag and drop. Also present is an SD card which includes the ability to display and manipulate the virtual image file as a FAT filesystem when under simulation. Two bitmaps ‘Happy.bmp’ and ‘Sad.bmp’ have been imported and can be rendered just by dragging and dropping onto the flowchart. You can add another bitmap (320x240 BMP RGB 24 bit per pixel) and drag the resource onto the flowchart in front of the audience.