激动的心,颤抖的手,小管家@21ic小管家 送我一份幸运练练手。
先来两张照片看看这个开发板的全貌
这个板子是单面布局,还用丝印标注了一下两个通道的区域,关键的关键是接线端子旁边还有方便测试小端子,这个开发板考虑的真周到,不太好的是这个USB接口居然是古老的一种接口,现在还真不好找这种数据线出来。背面有四个绝缘端子将开发板支起来,还有获取帮助的的网址贴纸。
这个帮助的网址不知是缺乏维护人员维护了还是已经搬迁了新的地址了,打开搜索该开发板的型号居然来了一个恶搞的死循环
,只有一个连接可以点击,点击之后还是当前页的连接,没有可用的资料。
借助于万能的互联网找到了一份控制器的手册,搬运一下资料吧。
The MCP19214/5 devices are highly integrated,digitally enhanced PWM controllers, used for batterychargers, bidirectional converters, LED lightingsystems and other low-side switch PWM applications.
其主要特性是
• AEC Q100 Qualified and PPAP Capable
• Input Voltage Range: 4.5V-42V
• Two Independent High-Performance PWMControllers
• Two Independent Control Loops per Channelallowing the User to Simultaneously Control theOutput Voltage and Current
• Can Be Configured to Control Multiple Topologiesincluding but Not Limited To:
- Boost
- Flyback
- Ćuk
- Single-Ended Primary-Inductor Converter(SEPIC)
• Peak Current Mode Control
• Master/Slave Operation of the PWM Controllerswith Adjustable Phase Shift
• Differential Output Current Sense Capability
• Integrated Low-Side Current Sense DifferentialAmplifier (10X)
• Integrated Low-Side Gate Drivers:
- 0.5A Sink/Source Current Capability at 5VSupply Voltage
- 1A Sink/Source Current Capability at 10VSupply Voltage
• Special Events Generator (the state of regulatingloops can be monitored without firmwareoverhead)
• Configurable Parameters:
- Reference Voltages for Regulating Loops(four internal DACs)
- Input Undervoltage Lockout (UVLO)
- Input Overvoltage Lockout (OVLO)
- Primary Current Leading Edge Blanking:0 ns, 50 ns, 100 ns and 200 ns
- Fixed Switching frequency Range:31.25 kHz-2.0 MHz
- Slope Compensation
- Primary Current Sense Offset Adjustment
- Configurable GPIO Pin Options
• Low Quiescent Current: 10 mA Typical
• Low Sleep Current: 120 μA Typical
• Thermal Shutdown
Microcontroller Features
• Precision 8 MHz Internal Oscillator Block:
- Factory-Calibrated to ±1%, Typical
• Interrupt-Capable
- Firmware
- Interrupt-on-Change Pins
• Only 35 Instructions to Learn
• 8192 Words On-Chip Program Memory
• 336 bytes of Internal RAM
• High-Endurance Flash:
- 100,000 Write Flash Endurance
- Flash Retention: > 40 Years
• Watchdog Timer (WDT) with IndependentOscillator for Reliable Operation
• Programmable Code Protection
• In-Circuit Serial Programming™ (ICSP™) via TwoPins
• Up to 12 I/O Pins and One Input-Only Pin
• Analog-to-Digital Converter (ADC):
- 10-Bit Resolution
- Internal 4096 mV Precision ReferenceGenerator
- Up to 8 External Channels
• Timer0: 8-Bit Timer/Counter with 8-Bit Prescaler
• Enhanced Timer1:
- 16-bit Timer with Prescaler
- Two Selectable Clock Sources
• Timer2: 8-Bit Timer with Prescaler
- 8-Bit Period Register
• I2C Communication:
- 7-bit Address Masking
- Two Dedicated Address Registers
• Addressable Universal Synchronous
Asynchronous Receiver Transmitter (AUSART)(only MCP19215):
- 8 and 9-Bit Data Operations
- Address Detect
- Asynchronous and Synchronous OperatingModes
找了大半天的时间没有找到开发板的原理图和用户手册,暂时就先水到这里吧。等有时间了再找找这个19年的产品的资料
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