Webinar Dec Less power consumption and unbeatable UI performance on TouchGFX & STM32L4+ solution

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Phebe McCoy
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1 Webinar Dec Less power consumption and unbeatable UI performance on TouchGFX & STM32L4+ solution

2 Overview Agenda: STM32L4+ presentation: main features and benefits, portfolio and ecosystem (ST) TouchGFX Introduction and Highlights of latest version (Draupner) Live TouchGFX programming of Smartwatch demo for STM32L4R9AI Discovery kit (Draupner) Tips and tricks for limiting required resources (Draupner) Business model and contacts (ST + Draupner) Q/A (ST + Draupner) Presenters: Bertrand DENIS STM32 Product Marketing Manager STMicroelectronics Jesper Hedegaard Product Manager - TouchGFX Draupner Graphics A/S Jørgen Mygind Business Development - TouchGFX Draupner Graphics A/S

3 STM32L4+ MCU series Excellence in ultra-low-power with more performance

4 Key messages of STM32 L4+ series 4 + Greater performance and still ULP leader ST has stretched the STM32L4 architecture to reach 150 MIPS based on its ARM Cortex-M4 core with FPU and ST ART Accelerator at 120 MHz while keeping best-in-class, ultra-low-power (ULP) figures. + More Graphics and Innovation Enhanced graphics acceleration and innovative peripherals are embedded to optimize the BOM cost. + More Integration 2 MB of Flash and 640 KB of SRAM with safety and security features, smart and numerous peripherals, advanced and low power analog circuits in packages as small as 5.2 x 5.2 mm. + Great Investment This new STM32 member benefits from the pin-to-pin compatibility of the STM32 family and the STM32 Ecosystem.

5 Providing greater performance 3 Stretching the performance and still excellent in Power consumption Performance 120 MHz 80 MHz + 50 % Up to 120 MHz/ 150 DMIPS with ART Accelerator Up to 409 CoreMark Result ARM Cortex-M4 with DSP instructions and floating-point unit (FPU) 2 x DMA (14 channels) SPI up to 60 Mbit/s, OctoSPI up to 86 MHz USART up to 10 Mbit/s, Power efficiency (ULPMark-CP) + More performance and still ULP leader

Ultra-low-power modes Best power consumption numbers with full flexibility Wake-up time 250 µs 14 µs 14 µs VBAT 3 na / 300 na* Shutdown 33 na / 300 na* Standby 125 na / 480 na*

RAM) Stop 2 (full retention: 640-Kbyte RAM) 2.5 µa / 2.9 µa* 3.9 µa / 4.

6 Ultra-low-power modes Best power consumption numbers with full flexibility Wake-up time 250 µs 14 µs 14 µs VBAT 3 na / 300 na* Shutdown 33 na / 300 na* Standby 125 na / 480 na* Standby + 64-Kbyte RAM 500 na / 800 na* Tamper detection: 3 I/Os, RTC Wake-up sources: reset pin, 5 I/Os, RTC Wake-up sources: + BOR, IWDG 5 µs 5 µs Stop 2 (retention: 256-Kbyte RAM) Stop 2 (full retention: 640-Kbyte RAM) 2.5 µa / 2.9 µa* 3.9 µa / 4.3 µa* Wake-up sources: + all I/Os, PVD, LCD, COMPs, I²C, LPUART, LPTIM 6 cycles Sleep 13 µa / MHz** Run up to 120 MHz Down to 43 µa / MHz** Wake-up sources: any interrupt or event Note : * without RTC / with RTC ** with external SMPS 56.5 ULPMark-PP 1 + More performance and still ULP leader 6

7 Enhanced graphics capabilities Chrom-ART Accelerator 2D Graphic acceleration Allowing enhanced graphic while releasing the core capabilities for real time processing 11% CPU Load With Chrom-ART Accelerator and 84% CPU load without it + More Graphics and Innovation 7

8 Enhanced graphics capabilities Chrom-ART Accelerator Large choice of display interfaces MIPI-DSI Controller for high pixel density, low pin count and low EMI displays LCD-TFT Controller for mid resolution displays Parallel display interface for low resolution displays STM32L4+ TFT Chrom-ART Accelerator MIPI- DSI FMC + More Graphics and Innovation 8

power consumption optimization Support of up to 400x400 24 bpp MIPI-DSI round displays Support of up to 4, WQVGA 16 bpp

9 Enhanced graphics capabilities Chrom-ART Accelerator Large choice of display interfaces External SRAM Memory Integration and resource optimization Chrom-GRC memory optimization for round displays Large internal SRAM allowing BOM cost and power consumption optimization Support of up to 400x bpp MIPI-DSI round displays Support of up to 4, WQVGA 16 bpp TFT displays with no external memory 640 KB SRAM Chrom- GRC STM32L4+ Display IF 20% Memory saving + More Graphics and Innovation 9

10 High integration 8 High integration with high memory size in small packages Parallel Interface FSMC 8-/16-bit (TFT-LCD, SRAM, NOR, NAND) Display DSI MIPI LCD TFT Controller Timers 17 timers including: 2 x 16-bit advanced motor control timers 2 x ULP timers 7 x 16-bit-timers 2 x 32-bit timers I/Os Up to 136 I/Os Touch-sensing controller Cortex-M4 120 MHz FPU MPU ETM DMA ART Accelerator Chrom-ART Accelerator Up to 2-Mbyte Flash with ECC Dual Bank 640-Kbyte RAM Connectivity USB OTG Crystal less, 1x SD/SDIO/MMC, 3 x SPI, 4 x I²C, 1x CAN, 2 x Octo SPI, 5 x USART + 1 x ULP UART Digital AES (256-bit), zsha (256-bit), TRNG, 2 x SAI, DFSDM (8 channels), Camera I/F, Chrom-GRC Analog 1 x 16-bit ADC, 2 x DAC, 2 x comparators, 2 x op amps 1 x temperature sensor Package size down to 5.24 x 5.24 mm + More Integration

STM32L4+: continuity in STM32 portfolio 11 product series / more than 800 part numbers STM32L4+ benefits from pin-to-pin compatibility across the family 2

106 CoreMark 48 MHz 38 DMIPS 177 CoreMark 72 MHz 61 DMIPS 245 CoreMark* 72 MHz 90 DMIPS (*) from CCM-SRAM Ultra-low-power 75 CoreMark 32 MHz 26 DMIPS 93

11 STM32L4+: continuity in STM32 portfolio 11 product series / more than 800 part numbers STM32L4+ benefits from pin-to-pin compatibility across the family CoreMark 400 MHz 856 DMIPS High-performance 398 CoreMark 120 MHz 150 DMIPS 608 CoreMark 180 MHz 225 DMIPS CoreMark 216 MHz 462 DMIPS Mainstream 106 CoreMark 48 MHz 38 DMIPS 177 CoreMark 72 MHz 61 DMIPS 245 CoreMark* 72 MHz 90 DMIPS (*) from CCM-SRAM Ultra-low-power 75 CoreMark 32 MHz 26 DMIPS 93 CoreMark 32 MHz 33 DMIPS 273 CoreMark 80 MHz 100 DMIPS 409 CoreMark 120 MHz 150 DMIPS Cortex-M0 Cortex-M0+ Cortex-M3 Cortex-M4 Cortex-M7 + Great investment 11

STM32L, a complete offering 10 STM32L4+ completes the

More memory and pin counts More packages 100 DMIPS 273 CoreMark

CoreMark 33 DMIPS 93 CoreMark 256 K 192 K 128 K 64 K BGA 32 K 16 K

12 STM32L, a complete offering 10 STM32L4+ completes the ultra-low-power family More performance 150 DMIPS 410 CoreMark More memory and pin counts More packages 100 DMIPS 273 CoreMark Flash size (bytes) 2 M WLCSP 1 M 512 K 384 K QFN 26 DMIPS 75 CoreMark 33 DMIPS 93 CoreMark 256 K 192 K 128 K 64 K BGA 32 K 16 K 8 K Pins LQFP MHz + Great investment

13 STM32L4+ portfolio + Great investment 11

14 STM32L4+ ecosystem HARDWARE TOOLS SOFTWARE TOOLS STM32 Nucleo Discovery kit Evaluation board STM32CubeMX featuring code generation and power consumption calculation 5 Flexible prototyping Key feature prototyping Full feature evaluation + Great investment 14

STM32L4/L4+ ecosystem User code STM32CubeL4 Middleware

STM32CubeF3 STM32CubeL1 Low-level drivers Hardware Abstraction

from ST STemWin graphical stack library from ST and Segger

(FreeRTOS) Numerous examples STM32L4 Hardware Abstraction Layer

(LL) APIs High coverage for most STM32 peripherals

15 STM32L4/L4+ ecosystem User code STM32CubeL4 Middleware STM32CubeL4 STM32CubeF0 STM32CubeF2 STM32CubeF4 STM32CubeF1 STM32CubeF3 STM32CubeL1 Low-level drivers Hardware Abstraction Layer CMSIS CMSIS EMBEDDED SOFTWARE USB host and device library from ST STemWin graphical stack library from ST and Segger Open-source FAT file system (FatFs) Open-source real-time OS (FreeRTOS) Numerous examples STM32L4 Hardware Abstraction Layer (HAL) portable APIs High-performance, light-weight low-layer (LL) APIs High coverage for most STM32 peripherals Production-ready and fully qualified Dozens of usage examples Open-source BSD license + Great investment 15

16 4 Keys of STM32 L4 + series 14 + Greater performance and still ULP leader + More Graphics and Innovation + More Integration + Great Investment

17 Thank you community.st.com 17

18 Introduction

unlocks the graphical user interface on your embedded hardware.

19 What is TouchGFX? TouchGFX is a license-based software framework written in C++ that unlocks the graphical user interface on your embedded hardware. TouchGFX unique technology lets you create high-end GUIs that meet today s smartphone standards, but run on microcontrollers.

20 Home Automation Case: Somfy Control for Shutters Critical TouchGFX features: Intuitive Touch Navigation Low Resource Use Low Cost per Unit Application: Unique Somfy GUI Design Multiple languages Capacitive Touch Display, B/W 108x300 STM32F405 - Cortex M3, 72MHz, 64KB RAM, No external Ram

Consumption Low Resource Use Application: Easy to use application

21 Wearables Case: ibeat, Smart Watch and Heart Monitor Critical TouchGFX features: Smart-phone GUI Performance Low Power Consumption Low Resource Use Application: Easy to use application Integrated Connectivity STM32F469 - Cortex M4 (180) MHz AMOLED Display

22 For full case descriptions, visit References

23 What Sets Us Apart

24 UNBEATABLE UI PERFORMANCE TouchGFX technology enables you to achieve the highest level of smartphone UI performance on resource constrained devices like Cortex M based microcontrollers.

25 CREATE ANYTHING The structure and flexibility of TouchGFX gives the Developer Control to easy creation of any unique UI design.

26 EASY TO USE TouchGFX combines a WYSIWYG designer, auto code generation and a PC-simulator with the efficiency and flexibility of the C++ language, giving you a perfect environment to develop high-end GUIs.

27 What You Can Do with TouchGFX Live Demo

28 Targeted platforms & Required RAM resources

29 Display: 1 to approximately 10 (1024x768) Also LCD with integrated framebuffers and controllers Types e.g: Parallel RGB, MIPI-DSI, 8080/SPI Operating System: Runs on any RTOS (uses just one task and two semaphores) Runs on Bare Metal (no OS) Linux Support TouchGFX Technology Targeted Platforms CPU Frequency MHz MHz MHz MHz MHz Display Size 160 x 128 1,8 320 x 240 QVGA - 3,5 320 x 240 QVGA - 3,5 480 x 272 WQVGA, 4,3 480 x 272 WQVGA - 4,3 640 x 480 VGA x 480 VGA x 480 WVGA x 480 WVGA x 768 XGA - 10

30 TouchGFX Technology Hardware Setup Required Hardware Display e.g. TFT-LCD WQVGA MCU Microcontroller Target Cortex M NAND/NOR Flash RAM (Framebuffer) Flash for Graphics Internal or external RAM for 1-3 framebuffers Internal or external Flash (Graphics) MCU Display

31 TouchGFX Technology Required Memory Resources Internal RAM for library: kb (framework and stack) 1-15 kb (widgets) Internal/External RAM for framebuffer(s): Memory usage depends on display resolution, color depth and the number of framebuffers (1,2 or 3). Internal/External Flash for library: kb (framework) kb (screen definitions, GUI logic) Internal/External Flash for image data: Depends on the total size of the graphical elements, typically 1-20 MB. Example: 480x272, 16 bit color, 2 framebuffers: 480 x 272 x 2 bytes x 2 = 520 kb.

32 Money and power saver : External RAM operations are heavy power consuming External RAM adds to your Bill of Materiel Less complex PCB and EMC shielding TouchGFX Solutions: 1. Place two FB in internal RAM 2. Place second FB in available display-ram 3. Run with only one FB placed in internal RAM Article, video and demo application available: NAND/NOR Flash TouchGFX Technology Get rid of the external RAM! Internal RAM (TouchGFX Stack + Framebuffer) Flash (Graphics) MCU STM2L4+ series: 640 kb Internal RAM Display

33 RESOLUTION / DISPLAY SIZE ONE FRAMEBUFFER SIZE 16 bit color Framebuffer sizes ONE FRAMEBUFFER SIZE 24 bit color 240 x 240 2,4 115 kbytes 172 kbytes 320 x 240 QVGA - 3,5 150 KBytes 230 kbytes 480 x 272 WQVGA, 4,3 255 KBytes 392 kbytes 390 x kbytes 456 kbytes STM32L4+ series: 640 kb Internal RAM

TouchGFX comes in a fully functional evaluation version, free-of-charge. Evaluate and create a proof-of-concept before buying: 1. Download TouchGFX Order it here: https://touchgfx.

34 TouchGFX comes in a fully functional evaluation version, free-of-charge. Evaluate and create a proof-of-concept before buying: 1. Download TouchGFX Order it here: 2. Explore the demos for STM32L4+ kits that comes with TouchGFX, and create your own test apps, see guide here: 3. Deploy on the PC-simulator and the STM32L4+ Discovery kit here: 4. Select and buy your TouchGFX license TouchGFX Development Get started with STM32L4+

35 Free Resources: Anytime, Anywhere TouchGFX Support Self-Service Solutions The TouchGFX Help Center is your gateway to TouchGFX knowledge and support. For more info, click the boxes above

36 TouchGFX Licenses Evaluation 0 For evaluation purposes only Annual Production Volume: None/Year Product Line Small 5,000 Covers product s entire lifetime Annual Production Volume: 3,000/Year Support and Update Agreement (SUA), 1st Year (SUA after 1st year: 1,000.-/year) Product Line Large 15,000 Covers product s entire lifetime Annual Production Volume: 50,000/Year Support and Update Agreement (SUA), 1st Year (SUA after 1st year: 3,000.-/year) Note: All license prices are one-time payments Customized license available

37 Find your local TouchGFX distributor at

38 Contact Points ST: Your local ST or ST-distributor contacts TouchGFX / Draupner Graphics: touchgfx-sales-support@draupnergraphics.com Jørgen Mygind: jmy@draupnergraphics.com Watch video and get started with TouchGFX on STM32L4+:

39 Q & A

40 Is the TouchGFX Designer platform independent? TouchGFX Designer runs on Windows only. The TouchGFX framework is pure C++, so development can be done anywhere. Does Touch GFX have round widgets in the palette? Does it have SDK for developing custom widgets? Questions & Answers All widgets are rectangular, but can have a round appearance. Just like a round PNG image. You can easily create custom widgets. Check out this article what sort of prices should we expect for these STM32? It really depends on the package, memory etc... I invite you to contact your local ST Sales Office or our Distributors for a quote. if I need to create my own application, what Licenses should I buy? The needed license type depends on the number of products and production volume. Feel free to contact smm@draupnergraphics.com keil examples? Most templates have Keil projects. Try for instance can a gfxscreen be used with arduino mega board (or any 8 bit mcu)? No I'm afraid not. TouchGFX is primarily for Cortex-M or Cortex-A processors.

41 Are there Linux development tools for the GUI? TouchGFX Designer runs on Windows only. The TouchGFX framework is pure C++, so development can be done anywhere. You mean that we can change the model of the product without reconfigurate the GPIO? Questions & Answers I mean that if you want to move your design from for example :STM32L1 or STM32L4 etc... to STM32L4+, the pinout is the same. Except of course if you want to use a feature which is not available on the previous product. You can refer to the application notes (migration) available on our web site Are PNG images supported? Yes, simply open or drag and drop these to TouchGFX Designer Are there plans to integrate with mbed-os? We have a CMSIS-OS implementation which should work on any CMSIS-compatible OS. No specific plans for mbed-os at the moment. Can TouchGFX support 1200x280 etc. abnormal resolution? Yes, TouchGFX can use any resolution.

42 can use touchgfx desinger template to another MCU? (EX. Not Cortex-M Serise) Yes, this is perfectly possible, although most of the supported templates are Cortex-M. Questions & Answers Does STM32L4+ support 24 frames per second animation, at full screen of 360x240x16bit? Yes: you can refer to the out of the box demo running on the discovery kit (390x390x 24 bits). Does the CubeMX support MacOS? Yes Does the graphics GPU have ability to copy images stored in ROM Yes. The Chrom-ART can copy/blend images from flash to ram and TouchGFX utilizes this How hard would it be to run a video stream? Not too hard, but you need to decode the video stream, which depends on the chosen video encoding format. We have a few demos that shows how to do it, we can send you or you can try yourself here: Further here's a post from our community:

43 how to load the application bin to external SDRAM & run the application. Normally the application executes directly from flash. SDRAM is typically only used if large frame buffers are required. Is it possible to stream multimedia (eg. movie)? Questions & Answers Yes this is possible. you need to decode the video stream, which depends on the chosen video encoding format. We have a few demos that shows how to do it, we can send you or you can try yourself here: Further here's a post from our community: Is the TouchGFX applicable on the last year's newly-released STM32L486VGT? Yes, TouchGFX will run on any STM32L4, but some low-level code might need to be modified to fit your particular hw (display, flash type etc.) The RTC current is with Crystal? Yes: for more information you can refer to STM32L4+ datasheet where all the electrical data are available on we will have a real simulation on the STM32 board? This was done during the presentation. Try it your self by downloading the free evaluation version of TouchGFX.

44 What is the limitation of the evaluation version of TouchGFX? Questions & Answers The only limitation to the TouchGFX evaluation version, is only a transparent watermark on the flashed board, which will appear sometimes. What is the recommended interface for camera devices from STM32L4+? We'll follow up with you on this after the webinar. Can I emulate and create round UI too in TouchGFX Designer? Currently the Designer always shows a rectangular canvas, but you can emulate the round appearance by temporarily adding a PNG image of the appropriate dimensions to the canvas. Use the visibility checkbox to toggle it. Does Touch GFX support siplays with frame buffers? Do you always need 2 frame buffers? TouchGFX can be configured to use 1 or 2 frame buffers, depending on your platform Does touchgfx support Keil and j-link? Yes have you a distributor on morocco? We do not have a local distributor in Morocco. But our distributor in South Africa, Harmony Electronics is covering your area. Please find Harmony Electronics and contact here: Does it support differnet color formats? like 1bit LCD? Yes we support 1, 2, 4, 16 and 24bpp displays.

45 Questions & Answers I just want to say thank you to the touchgfx support mainly Nadim Shehayed a great asset to the team. Also the recent updates to TouchGFX software has been great and love the commitment to upgrading and maintaining the software. TouchGFX is the best in my personal use of everything out there. Thank you very much, we'll pass on the word! who much ram addition required other than frame buffer? We need a bit of ram for widgets and the framework itself. A few kilobytes should do. Can we design a templeate for our own dev board? is it hard? Yes you can - I'd recommend starting with one of the existing templates and modifying it. We have an article describing the process here: Do you deliver TouchGFX in source code? The TouchGFX core comes in a pre-compiled library. Hardware and OS abstraction layers comes in full source, and all our demos and examples are also in full source. it has enougth power to play short videos Yes so would I be able to use this tft interface with my stm32f769i discovery kit? Or would it be only dedicated to the L4+? Yes, but the round display memory saving feature is not present on the 769 MCU.

STM32L4+ MCU series Excellence in ultra-low-power with more performance

STM32L4+ MCU series Excellence in ultra-low-power with more performance Key messages of STM32 L4+ series 2 + More performance and still ULP leader ST has stretched the STM32L4 architecture to reach 150