70 lines
2.8 KiB
Markdown
70 lines
2.8 KiB
Markdown
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# SAMC21J18A BSP 介绍
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[English](README.md)
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- MCU: ATSAMC21J18A @64MHz, 256KB FLASH, 32KB RAM, 2.7V – 5.5V
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- C21: Cortex-M0+内核 + 丰富外设 + 2路CAN-FD + Delta-Sigma ADC
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- 管脚: N系列-100 pins, J系列-64 pins, G系列-48 pins, E系列-32 pins
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- Flash: 18=256KB, 17=128KB, 16=64KB , 15=32KB(size=2^n)
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- SRAM : 32KB(Flash 256KB), 16KB(Flash 128KB), 8KB(Flash 64KB), 4KB(Flash 32KB)
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## 手册: <https://www.microchip.com/en-us/product/ATSAMC21J18A>
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#### KEY FEATURES
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#### 内核
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- 32-bit Arm® Cortex®-M0+ 内核， 主频最高48MHz和64 MHz+单指令周期的硬件乘法器
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#### 内存
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- 32/64/128/256 KB in-system self-programmable Flash
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- 1/2/4/8 KB independent self-programmable Flash for EEPROM emulation
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- 4/8/16/32 KB SRAM main memory
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#### 系统特性
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- Power-on Reset (POR) and Brown-out Detection (BOD)
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- Internal and external clock options with 48 MHz to 96 MHz Fractional Digital Phase Locked Loop (FDPLL96M)
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- External Interrupt Controller (EIC) (Interrupt pin debouncing is only available in SAM C20/C21 N)
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- 16 external interrupts
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- One non-maskable interrupt
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- Two-pin Serial Wire Debug (SWD) programming, test, and debugging interface
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#### 高性能外设
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- Hardware Divide and Square Root Accelerator (DIVAS)
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- 12-channel Direct Memory Access Controller (DMAC)
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- 12-channel Event System
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- Up to eight 16-bit Timer/Counters (TC), configurable as either
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- Two 24-bit and one 16-bit Timer/Counter for Control (TCC), with extended functions
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- Frequency Meter (The division reference clock is only available in the SAM C21N)
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- 32-bit Real Time Counter (RTC) with clock/calendar function
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- Watchdog Timer (WDT)
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- CRC-32 generator
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- Up to two Controller Area Network (CAN) interfaces in the SAM C21
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- Up to eight Serial Communication Interfaces (SERCOM), each configurable to operate as USART/I2C/SPI
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- One Configurable Custom Logic (CCL)
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- Up to Two 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to 12 channels each (20 unique channels)
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- One 16-bit Sigma-Delta Analog-to-Digital Converter (SDADC) with up to 3 differential channels in the SAM C21
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- 10-bit, 350 ksps Digital-to-Analog Converter (DAC) in the SAM C21
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- Up to four Analog Comparators (AC) with Window Compare function
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- Integrated Temperature Sensor in the SAM C21
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- Peripheral Touch Controller (PTC)
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- 256-Channel capacitive touch
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#### I/O管脚
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- 最多提供84个用户可编程I/O管脚
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#### 汽车应用
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- AEC - Q100 Grade 1 (-40°C to 125°C)
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#### 工作电压
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- 2.7V – 5.5V
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- -40°C to +125°C, DC to 48 MHz
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- -40°C to +85°C, DC to 64 MHz
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#### 封装
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- 100-pin TQFP
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- 64-pin TQFP, VQFN
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- 56-pin WLCSP
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- 48-pin TQFP, VQFN
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- 32-pin TQFP, VQFN
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#### 官方开发板信息
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- [SAM C21 XPLAINED PRO]（https://www.microchip.com/en-us/development-tool/ATSAMC21-XPRO）
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