Renesas MCUs Can Rewrite The Update Software by Wireless Communication with OTA Technology
Hello, I’m Takahashi at RENESAS Electronics. I am working on proposing various solutions for Renesas’ automotive control processor products (MCU) to customers who develop electronic control units (ECU) for automobiles. In my private life, I build a small electric bike, register the number officially and enjoy riding it on public roads. (This is legal, of course.) I use small MCUs to control my own electric bike. However, when changing the control software to match the characteristics of the motor, it is necessary to connect it to a computer and rewrite the software on the MCU Flash memory, which is troublesome and inconvenient.
The control software of the MCU is also rewritten in various situations in the customer's ECU. It may be necessary for users to rewrite not only at the time of shipment from the factory, but also after shipping to improve the control software of the vehicle you use. This is inconvenient because users must bring the vehicle to the factory or dealer.
Renesas Electronics MCUs are addressing that issue with the Over the Air (OTA) technology, which can rewrite the update software by wireless communication.
The OTA has several software update methods. The methods called “Wait OTA” and “Semi-non wait OTA” have some disadvantages that software cannot be rewritten while the MCU is running, or even if software can be rewritten while the MCU is running, an external Flash memory is required outside the MCU. Renesas Electronics provides MCUs with Flash memory that can set multiple banks that separate the software area to be placed. These MCUs use “Non wait OTA” method which allows software in one bank to run while software from the other bank is updated. With “Non wait OTA” method, software can be downloaded to the vehicle to be updated via wireless communication, and the software can be updated in the background without interfering with the control of the running vehicle.
We have prepared a demonstration of this OTA function using the E2x, the RH850 series of automotive MCUs from Renesas Electronics. The demonstration assumes that the car receives the update software in the communication module and updates the software to the MCU to be updated via the gateway ECU of the in-vehicle network. The OTA client writes the update software to Bank2 of the Flash memory while running the current software on Bank1 of the Flash memory. During this write, the OTA client continues the motor control. When the write is completed, the OTA client records the setting to execute the software stored in Bank2 of the Flash memory at the next startup to the non-volatile DataFlash memory. Cars with update software written by OTA can be started with the updated software by resetting the vehicle's ECU. We also have an introduction video showing how the OTA demonstration works. Check it out!
The actual demonstration kit is handmade by me, and the software to run it is also handmade by my great team of colleagues. We packed the briefcase with an evaluation board with the RH850/E1x as an OTA master, one with the RH850/E2x as an OTA client, and a model of a car that operates the motor speed with a pedal that imitates the accelerator pedal of a car. Currently, we do not have a chance to show you directly because of the coronavirus matters, but we are happy to hear if the situation improves, so please feel free to contact us. We also have an introductory video summarizing our support for OTA technology in a more concise and accessible way than this blog.
Although this OTA demonstration is limited to the use of some of the functions of Renesas Electronics' MCU, we have prepared some materials that summarize the implementation method using RH850/E1x and E2x used in this demonstration so that you can try it out easily. If you are interested, please feel free to contact us.
Also, if you are interested in Renesas Electronics solutions and winning combinations, please visit the solutions page on our website.
Finally, the handmade electric bike I mentioned at the beginning of this article is being improved and is now under construction to become Japan's smallest public road-going electric pocket bike using a brushless in-wheel motor. When the electric bike is completed using our MCU, I will report back to you in this blog.
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本文由青莲居士转载自Renesas，原文标题为:To Realize Customer Value in the Automotive Business (Series 12）: Over the Air Demonstration of Automotive Microcontrollers，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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目录- 功率器件Power Mosfet&IPD MCU-F系列 MCU-D系列 MCU-Super系列 MCU-RH850族 MCU产品开发工具&开发环境 芯片封装
型号- NP82N055NUG,SUPERH,NP80N04NUG,ΜPD166033T1U,NP60N04VUK,NP45N06PUK,NP75N04YUK,RSF10BGC,RSF10BGD,NP75N04YUG,NP35N04YUG,RSF10BGE,RSF10BGF,R5S726A2P216FP,R5S726B0P216FP,R5F10DMJXFB,NP80N055NDG,R5S72670W144FP,R5F 10DLDXFB,R8C/3X,R5S72691W266FP,NP82N055MUG,RSF1OBME,R5F109LD,R5F109LC,R5F109LB,R5F109LA,RL78/,NP36P04SDG,R5F109LE,NP82N04MLG,NP82N06PLG,R5F72531DKFPU,NP52N06SLG,V850E2M,SH-2A,R5F72A06K3BFFM,NP160N055TUK,NP82N03PUG,R5S72680W266FP,NP82N055PUG,NP16N04YUG,NP100N04PDG,R5F72A06K2BFFM,NP40N10PDF,RL78/F13-CAN,NP160N04TDG,NP50P04SDG,RH850/P1M,NP55N04SUG,R5S726B1D216FP,V850,R5F10DPEXFB,NP82N04NLG,NP84N055NHE,R5S72690P266BG,NP80N055PDG,ΜPD166031AT1U,RSF10BLD,RSF10BLE,RSF10BLC,NP60N055NUK,RSF10BLF,RSF10BLG,R5F10DPEXFB,NP90N055NUK,R5F10BAG,NP20N10YDF,R5F10BAF,R5F10BAE,R5F10BAD,R5F10BAC,NP89N04PUK,R5F72A06K3CFFM,R5F72A28KADFFP,NP20P06YLG,RSF10BMF,R5F71476AK64FPV,RSF10BMG,R5F10BBG,R5F10BBF,R5F10BBE,R5F10BBD,R5F10BBC,NP75P04YLG,ΜPD166034T1U,RL78/F12,NP55N03SUG,NP60N03SUG,RL78/F13,RL78/F14,RL78/F15,R5S72680P266FP,R5F10AAA,R5F71424A K64FPV,R7F701271EAFP,R5F10DPFXFB,R5F72543RKBGV,R5F10AAE,R5F10AAD,NP35N04YLG,R5F10AAC,NP90N04VUG,R7F701534,R5S72690W266BG,R7F701531,R7F701530,ΜPD166026,ΜPD166025,ΜPD166024,R7F701528,ΜPD166023,R7F701529,R5F72544RKBGV,R7F701526,ΜPD166029,R7F701527,R5S72691P266BG,NP15P06SLG,ΜPD166028,ΜPD166027,R5F10ABA,R5F71476BD80FPV,NP90N04VUK,R5F10CMDXFB,ΜPD166035GR,R5F10ABE,R5F10ABD,QB-R5F109GE-TB,R5F10ABC,R7F701544,NP88N04NUG,R7F701545,R7F701542,R7F701543,R5S726A2D216FP,NP84N055NLE,NP89N055MUK,R5S726B0D216FP,R5F10DGDXFB,R5S72690P266FP,R5F72A26K2DFFP,R5F10TPJXFB,R5F10CMDXFB,R5S726A3D216FP,NP40N10YDF,NP89N04NUK,R7F701506,R7F701507,R5F10PAE,R5F10PAD,R7F701502,R7F701623,R5F10DGDXFB,R5F10CMEXFB,SH2A-FPU,NP109N055PUK,NP84N055MHE,RSF10BAE,RSF10BAF,RSF10BAC,RSF10BAD,R5F72AW2KFP,RSF10BAG,NP82N04MDG,NP82N06PDG,NP89N055NUK,R5F72A28KACFFP,R5F10PBE,NP88N055KUG,R5F10PBD,R5F10BGF,NP60N055MUK,R5F10BGE,R5F71424BJ80FPV,R5S72681W266FP,R5F10BGD,R5F10BGC,NP80N04PDG,RSF10BBC,NP90N06VLG,RH850/F1K-2M,RSF10BBF,RSF10BBG,RSF10BBE,R5F10BGG,R7F701610,R7F701611,NP系列,R5S726A1P216FP,78K,NP75N055YUK,NP89N04MUK,R5S72690W266FP,NP89N055PUK,NP55N055SDG,R5F10CLDXFB,NP20P04SLG,R5S72691P266FP,R5F113GL,R5F113GK,R7F701603,R5S726A1D216FP,R7F701602,NP110N04PDG,R5F10968,R5F1096E,R5F1096D,R5F1096C,R5F1096B,R5F1096A,NP82N04NDG,R7F701621,R7F701501,R7F701622,R7F701620,R5F10CLDXFB,R5F72533KFPU,R5S72691P266FP R5S72690W266BG,R5S72691W266BG,R7F701612,R7F701613,R5F10AGG,R5F10CMEXFB,QB-R5F10BMG-TB,R5F10AGF,R5F10AGE,R5F10AGD,R5F10AGC,NP52N055SUG,R5F10AGA,RL78/F13-LIN,NP60N055KUG,R5F72546RKBGV,R5F72AW3KFP,R5F10DMJXFB,R5F10DGCXFB,NP70N10KUF,R5F10TPJXFB,NP100N04MDH,NP50P06KDG,QB-R5F10PPJ-TB,NP75N04VUK,ΜPD166037T1J,ΜPD166036GR,R5F71426BD80FPV,NP15P04SLG,R5S726A0P216FP,C1X,NP84N055MLE,NP100P04PDG,NP80N055MDG,R5S726A0D216FP,NP88N04KUG,R5F10DGCXFB,SH72AX,NP80N04NDG,NP60N04VDK,RH850/F1H,R5F10DMDXFB,NP40N10VDF,RH850/F1L,R5F10PGH,R7F701016,R5F71426AK64FPV,R5F10PGG,R7F701017,NP60N04NUK,R5F10PGF,R7F701014,R5F10PGE,R7F701015,NP100P06PDG,R5F10PGD,R7F701012,R7F701013,R7F701010,R7F701011,R5F10BLC,NP34N055SLE,R7F701009,R5F10PGJ,R7F701007,R7F701008,RH850/F1M,R5F10CGCXFB,R5F10BLG,R5F10BLF,R5F10BLE,R5F10BLD,R7F701020,R5F113LK,NP110N03PUG,R7F701028,R7F701025,R7F701023,R7F701024,NP82N04PDG,R7F701021,R7F701022,NP90N04VLG,RH850/F1X,NP90N04VLK,R7F701018,R5F113LL,R7F701019,R5F10BMG,R5F10BMF,NP33N06YDG,NP80N04MDG,R5F10BME,ΜPD166038T1J,R5F71474AK64FPV,RX,R5F113ML,RSF10B8D,R5F113MK,R7F701597,NP50P03YDG,NP90N06VDK,QB-V850E2-EE,R5F10ALD,R5F10ALC,R5F72A26K3CFFP,NP20P06SLG,R5F72AY2KFP,SH,R5F10ALG,R5S726A3P216FP,R5F10ALF,R5S72671P144FP,NP83P04PDG,R5F10ALE,R7F701006,R7F701003,R5F10DMDXFB,NP84N055KLE,R7F701002,NP88N055KLE,NP36P04KDG,R5F10AME,NP80N04NHE,NP80N04PLG,NP100N04PUK,RH850,R5F10CGCXFB,NP55N055SUG,R5F10DPJXFB,R5F10AMG,R5F10AMF,NP160N04TUG,R7F701577,NP100N04PUG,R7F701573,R5S726B1P216FP,R5S72681P266FP,R7F701572,NP90N03VLG,HS0005KCU02H,RSF108GG,R5F10CGBXFB,NP80N03NLE,R7F701568,R7F701569,R5F10DGEXFB,NP45N06VUK,R5F71474BJ80FPV,NP50P04KDG,R5F10DPJXFB,R5F72531KFPU,R5F10PLE,R5F113PG,R7F701580,R7F701581,R7F701586,R5F10PLJ,R5F113PL,R7F701587,NP36P06KDG,R5F113PK,R5F10PLH,R5F113PJ,R5F10PLG,R7F701582,R5F10PLF,R5F113PH,R7F701583,NP60N055VUK,NP80N04MHE,R5F10CGBXFB,R5F72A26K3DFFP,P1X,HS0005KCU01H,R5F10DGEXFB,RL78,RH850/CIM,R5F10PMF,NP109N04PUK,R5F10PME,NP90N04MUK,NP109N04PUG,NP74N04YUG,R7F701313,NP60N04MUK,R7F701314,R7F701553,R7F701311,NP180N055TUK,R7F701312,R5F10PMJ,NP60N04MUG,R7F701552,R7F701310,NP90N04MUG,R5F10PMH,R5F10PMG,R7F701548,R7F701549,R7F701546,R5S72671W144FP,R7F701304,NP89N04PDK,R7F701547,R7F701305,NP90N055VUK,MCU-SUPERH,NP50N04YUK,R8C,R7F701566,R7F701567,R7F701564,R7F701322,R7F701565,R7F701323,NP60N03KUG,NP88N055MLE,R7F701562,R7F701320,R7F701563,R7F701321,RH850P,R7F701560,R7F701561,R5F109AA,R7F701319,R5F72AY3KFP,R7F701318,NP80N04NLG,R7F701557,R5F72A08KACFFM,R7F701315,RH850C,NP100P04PLG,R5F109AE,NP160N04TUK,R5F109AD,R5F109AC,R5F109AB,SH7147,SH7268,R5F10DMGXFB,NP90N055MUK,SH7269,SH7266,NP90N04NUK
电子商城
现货市场
服务
可定制显示屏的尺寸0.96”~15.6”，分辨率80*160~3840*2160，TN/IPS视角，支持RGB、MCU、SPI、MIPI、LVDS、HDMI接口，配套定制玻璃、背光、FPCA/PCBA。
最小起订量： 1000 提交需求>
可烧录IC封装SOP/MSOP/SSOP/TSOP/TSSOP/PLCC/QFP/QFN/MLP/MLF/BGA/CSP/SOT/DFN；IC包装Tray/Tube/Tape；IC厂商不限，交期1-3天。支持IC测试（FT/SLT），管装、托盘装、卷带装包装转换，IC打印标记加工。
最小起订量： 1pcs 提交需求>
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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