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ATWINC3400
#1
初級會員
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hi,
與ATSAME51N19A MCU 搭配,幾個問題:
1. ATMEL相關軟體是否已移植到MPLABX IDE上?
2. 是否需像3400_XPRO eval board外加SPI flash, eeprom,authenticate chip,etc. ? 還是只需接上CPU interface(SPI,UART)即可?
3. 韌體是否已燒錄還是需預留燒錄介面?

tks,

發表於: 2020/11/24 9:49
best regards,
Anthony
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Re: ATWINC3400
#2
新會員
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1. WINC3400 is supported by latest Harmony 3 Configurator in MPLAB X IDE. SAME54 is also supported.
2. To use WINC3400 with SAME54, you need to connect SPI in between. You don't need ECC, EEPROM or SPI flash, they are optional. You will use them only if your application requires them.
3. WINC3400 is loaded with latest firmware when the module is manufactured. However, Microchip could release firmware update to address new IOP issues or new feature requests. It is recommended to reserve I2C interface for firmware programming and Bluetooth UART interface for certification test.

Please let me know if you need further clarification.

Thanks a lot.

Martin

發表於: 2020/11/26 14:34
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Re: ATWINC3400
#3
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if I use XIN32/XOUT32 of ATSAME51N19A to connect a 32.768khz crystal, can I connect the XOUT32 to RTC_CLK of ATWINC3400 to save the component count?

do I need to add a buffer like 74lvc04 to reshape the waveform?

or I can configure one GPIO to output the 32.768khz? If the MCU is put into sleep mode, is the output still running?

PS. suppose the ATWINC need a free running 32.768khz in power down mode(CHIP_EN=LOW)

Anthony

發表於: 2020/11/28 12:01
best regards,
Anthony
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Re: ATWINC3400
#4
管理員
管理員


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Hi Anthony,

The reference design on our ATWINC3400-Xplained EVB should use an external oscillator to supply 32.768K for Bluetooth workable.
https://www.microchip.com/developmentt ... ls/PartNo/ATWINC3400-XPRO
We suggest not to remove it for your first run design to avoid any side effect we not proved.

In our EVB design, we reserved a 'NM R116' could supply 32.768K clock from MCU for alternate.
縮圖
If you want use the clock from MCU please do below test on your board.
1. Please do not parallel connect or use a buffer 74lvc04 to wire XOUT32 for clock to WINC3400.
2. If you want the 32.768K Output from SAME51, Please follow below example to output the 32K from GCLK output pin PA17 PB17 of SAME51J20A
A) Enable external 32K crystall for clock source of GCLK3 to get the 32K clock.
縮圖
B) The GCLK could configure to work while sleeping mode.
縮圖
C) Click on [GCLK I/O Configuration] to configure the GCLK3 to output clock.
縮圖
D) Enable the output pin PA17 or PB17 of GCLK3 output
縮圖

Attach file:



jpg  SAME51_32K_GLCK.jpg (174.60 KB)
67979_5fc46eb614d06.jpg 1321X307 px

jpg  SAME51_GLCK.jpg (92.10 KB)
67979_5fc46ede39887.jpg 551X384 px

jpg  WINC3400-RTC_CLK.jpg (169.01 KB)
67979_5fc46ef6583d2.jpg 733X646 px

jpg  SAME51_GCLK_Output.jpg (64.11 KB)
67979_5fc46f0c1a65d.jpg 489X327 px

jpg  SAME51_GCLK_PIN.jpg (110.08 KB)
67979_5fc46f1b88058.jpg 664X302 px

發表於: 2020/11/30 12:02
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