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[原创] ST SPC572Lx系列小型引擎EFI(电控燃油喷射系统)参考设计

关键词:Power Architecture MCU 汽车电子 电喷系统 SPC572Lx系列

时间:2019-09-18 11:19:43?????? 来源:中电网

ST公司的SPC572Lx系列是32位基于Power Architecture? MCU,是汽车动力控制器,主要用在四缸汽油和柴油发动机,底盘控制应用,变速箱控制应用,转向和制动应用以及低端混合应用.器件和ISO26262 ASIL-A兼容.满足AEC-Q100规范,具有32位Power Architecture? VLE兼容CPU核,单精度浮点运作,集成了支持EEPROM仿真(32KB)的1568KB RWW闪存,和64KB通用数据SRAM,系统存储器保护单元(SMPU),多路直接内存访问控制器(eDMA),16路高达60个DMA源.器件还集成了中断控制器(INTC),具有四路32位和一个64位周期性中断计时器通路(PIT).用于外设和核的单个锁相环(PLL),系统集成单元Lite(SIUL2),通用计时器模块(GTM101),大乐透倍投复杂计时模块,有72路(16输入和56输出),集成了三个12位SAR 模拟转换器以及一个16位Sigma-Delta模拟转换器.本文介绍了SPC572Lx系列主要特性和特性总结表,框图,小型引擎EFI(电控燃油喷射系统)参考设计SPC5-L9177A-K02主要特性,框图以及SPC572L-DISP Discovery+ 板电路图.

32-bit Power Architecture? based MCU for automotive powertrain applications

This family of MCUs is targeted at automotive powertrain controller applications for fourcylindergasoline and diesel engines, chassis control applications, transmission controlapplications, steering and braking applications, as well as low-end hybrid applications.

The family is designed to achieve ISO26262 ASIL-A compliance.

SPC572Lx系列主要特性:

? AEC-Q100 qualified
? One main 32-bit Power Architecture? VLECompliant CPU core, single issue
– Single-precision floating point operations
? 1568 KB on-chip RWW flash memory
– Supporting EEPROM emulation (32 KB)
? 64 KB general-purpose data SRAM
? System Memory Protection Unit (SMPU)
? Multi-channel direct memory access controllers(eDMA) with 16-channel for up to 60 DMAsources
? Interrupt controller (INTC)
? Four 32-bit and one 64-bit Periodic InterruptTimer channels (PIT)
? Single phase-locked loops with stable clockdomain for peripherals and core (PLL)
? System integration unit lite (SIUL2)
? Boot assist flash (BAF) supports factoryprogramming through UART/LIN, CAN
? Generic timer module (GTM101)
– Intelligent complex timer module
– 72 channels (16 input and 56 output)
? Enhanced analog-to-digital converter systemwith:
– Three 12-bit SAR analog converters
– One 16-bit Sigma-Delta analog converters
? Decimation unit to support SD ADC dataconditioning
? Two deserial serial peripheral interface (DSPI)modules
? Two LIN and UART communication interfaces(LINFlexD) modules
? One μs-bus channel (composed by one DSPIand one LINFlexD)
? Four SENT channels
? Two modular controller area network (M_CAN)modules
? Fast Ethernet controller (FEC)
? Fast Asynchronous Serial Transmission(LFAST)
? Nexus development interface (NDI) per IEEEISTO5001-2003 standard, with some supportfor 2010 standard
? Device and board test support per Joint TestAction Group (JTAG) (IEEE 1149.1 and IEEE1149.7)
? Single 5V+/-10% Power supply supportingcold start conditions(down to 3.0 V)
? Self Test capability
? Designed for eTQFP80 and eTQFP100

SPC572Lx系列特性总结表:




图1.SPC572Lx系列框图

小型引擎EFI(电控燃油喷射系统)参考设计SPC5-L9177A-K02

The SPC5-L9177A-K02 provides a reference design to evaluate a complete solution to control one or two-cylinders internal combustion engine for Small Engine Application (e.g. small motorcycle, portable generator, agriculture, nautical engines, etc.).


图2.参考设计SPC5-L9177A-K02外形图

The solution enable to drive all the relevant loads used in one/two cylinders small engine applications (Injectors, Relay, stepper motor, tachometer, etc.), to interface with Variable Reluctance Sensors, to monitor diagnostic functionalities and to interact with the main networks present in powertrain environment (K-Line).

This reference design is matching the most relevant emission control norms such as EURO4, EURO5, Bharat Stage VI, China V and China VI.

The board is provided with an automotive 48-pole connector and all channels are protected against short circuit and over-temperature condition.

Free ready-to-run reference design examples are available inside spc5studio (www.st.com/spc5studio) to support quick evaluation and development for basic mono-cylinder engine.

SPC5Studio includes a “visual configuration code generation engine”, board support package (BSP), start-up routines, interrupt services and a full set of low-level drivers.

SPC572l64F2 32-bit Power Architecture MCU for Automotive Powertrain Applications with high performance programmable timer GTM v101 L9177A Automotive peripheral on chip for Small Engine control

Small Engine Application SW: Basic fuel injection control for mono cylinder engine 4-stroke 250cc displacement with one injector and inductive coil 18-1 toothed wheel with air temperature, water temperature, barometric pressure compensation and basic calibration integrated

The SPC5-L9177A-K02 provides a reference design to evaluate a complete solutionto control one or two-cylinders internal combustion engine for Small EngineApplication (e.g. small motorcycle, portable generator, agriculture, nautical engines,etc.).

The solution enable to drive all the relevant loads used in one/two cylinders small engine applications (Injectors, Relay, stepper motor, tachometer, etc.), to interface with Variable Reluctance Sensors, to monitor diagnostic functionalities and to interact with the main networks present in powertrain environment (K-Line).

This reference design is matching the most relevant emission control norms such as EURO4, EURO5, Bharat Stage VI, China V and China VI.

The board is provided with an automotive 48-pole connector and all channels are protected against short circuit and over-temperature condition.

Free ready-to-run reference design examples are available inside SPC5Studio (www.st.com/spc5studio) to support quick evaluation and development for basic mono-cylinder engine.

SPC5Studio includes a “visual configuration code generation engine”, board support package (BSP), start-up routines, interrupt services and a full set of low-level drivers. SPC5Studio is available for free download.

参考设计SPC5-L9177A-K02主要特性:

?SPC572L64F2 32-bit Power Architecture MCU for Automotive Powertrain
Applications with high performance programmable timer GTM v101
?L9177A Automotive peripheral on chip for Small Engine control
?Small Engine Application SW: Basic fuel injection control for mono cylinderengine 4-stroke 250cc displacement with one injector and inductive coil 18-1toothed wheel with air temperature, water temperature,barometric pressurecompensation and basic calibration integrated
? JTAG Port
? 2 injectors/2 coils drivers
? 3 relay outputs
? O2 Sensor Heater driver
? 1 High Side output
? Tachometer output signal
? Variable Reluctance Sensor conditioning circuit
? MIL output
? +5V ref for external sensors
? Stepper motor driver
? Inputs for HEGO, IAT, ECT, IPS and TPS sensors
? CAN and K-LINE interface
? KEY switch function for power-off control
? 4 reserved digital inputs
? 4 reserved analog inputs
? STWD100 watchdog timer
? 3 general purpose LEDs
? 16 MHz crystal
? Board size 100 x 70 mm

图3.参考设计SPC5-L9177A-K02框图

SPC572L-DISP Discovery+ 板

This manual provides information for the final user application developer on how to configure and to use the SPC572L-DISP microcontroller evaluation board.

The discovery board SPC572L-DISP is based on the microcontroller SPC572L64E3, a high performance 32-bit Power Architecture technology CPU, 1568KB flash in an eTQFP100 package.

The several interfaces including GPIO’s, peripherals such as DSPI, LIN, UART, ISO CAN-FD make the SPC572L-DISP an excellent starter kit for the customer to quickly evaluate the microcontroller as well as to develop and debug application. An integrated programmer debugger allows debugging and programming the microcontroller without further tools. The same circuit allows enabling a USB to serial communication channel (USB Virtual COM port).

A standard JTAG port allows programming the microcontroller by using different debug/programmer tools.

图4.SPC572L-DISP Discovery+ 板外形图

SPC572L-DISP Discovery+ 板包括:

?SPC572L-DISP Discovery board (see Figure 4).
?USB type A to mini-B cable.
?12 V DC power Supply (EU Plug).
图5.SPC572L-DISP Discovery+ 板电路图(1)

图6.SPC572L-DISP Discovery+ 板电路图(2)

图7.SPC572L-DISP Discovery+ 板电路图(3)

图8.SPC572L-DISP Discovery+ 板电路图(4)
详情请见:
https://www.st.com/content/ccc/resource/technical/document/user_manual/group1/fd/5d/2a/0c/52/a5/4f/87
/DM00535557/files/DM00535557.pdf/jcr:content/translations/en.DM00535557.pdf

https://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/group1/a0/04/23
/02/3d/fc/4c/9c/SPC5-L9177A-K02/files/EFI_SCHEMATIC.pdf/jcr:content/translations/en.EFI_SCHEMATIC.pdf

spc572l-disp.pdf
en.DM00535557.pdf
en.EFI_SCHEMATIC.pdf
spc572l64f2.pdf

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