[讨论] Atmel Software Framework升级到3.21

Atmel Software Framework升级到3.21了。更新如下：

Release ASF3.21 (Dec 2014)
• SAM L21 device family and SAML21-XPRO support : added drivers support for Clock ,AES, CCL, OPAMP,
TRNG, RWW, HSDAC, AC, ADC, BOD, DAC, DMA, Event, EXTINT, I2S, NVM, PAC, PORT, RTC, SERCOM,
TC, TCC, USB, WDT,added services support for EEPROM, USB host/device, gfx_mono, delay, ctrl_access,
added components support for serial_flash, at30ts75, ssd1306, added Thirdparty support for CMSIS,
FreeRTOS, FATFS
• SAM G55 device family and SAMG55-XPRO support : USB OHCI host stack support, Full set of drivers
support of adc, chipid, cmcc, crccu, efc, flexcom,gpbr, i2sc, matrix, mem2mem, pdc, pdm, pio, pmc, rstc, rtc,
rtt, spi, supc, tc, twi, udp, uhp, usart, wdt, added applications of xplained_pro_user_application, getting-started,
sam_low_power, starter_kit_bootloader_demo, added services support for flash_efc, clock, delay, ioport, serial,
sleepmgr, spi, twi, usb, added components support for ssd1306, at30tse75x, sd_mmc, added Thirdparty support
for CMSIS DSP lib, FreeRTOS.
• Performance Analyzer Firmware : Support for Remote Node Configuration Feature

直接从AtmelStudio中升级很慢，最好先下载：

ASF 3.21
http://www.atmel.com/images/asf-standalone-archive-3.21.0.6.zip

EXE安装文件：
http://pan.baidu.com/share/link?shareid=458158&uk=321377241