文本说明案例evb-335x

1、54321DDCCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页1 23 5432154321DDCCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页1 23 5432154321PCB DD-TOP LEVEL CoM-335XSTERSUPPLY RMII ETHERNET LCD RGB565 USB HOSTUSB DESIGN DESIGNletextforinformational design notes .CCDESIGNletextforcautionary desi

2、gn notes.PCBDESIGNletextforcritical design notes.&CAN&IIC IIS AUDIOBAT & WDG & BZ & ULED MICRO SD CARDGPMC BUS KEYPADS & ADC RTC & EEPROMSPI FLASH & LAYOUT letextforcritical layout guidelines.BBPCB层数：四54321PCB DD-TOP LEVEL CoM-335XSTERSUPPLY RMII ETHERNET LCD RGB565 USB HOSTUSB DESIGN DESIGNletextfo

3、rinformational design notes .CCDESIGNletextforcautionary design notes.PCBDESIGNletextforcritical design notes.&CAN&IIC IIS AUDIOBAT & WDG & BZ & ULED MICRO SD CARDGPMC BUS KEYPADS & ADC RTC & EEPROMSPI FLASH & LAYOUT letextforcritical layout guidelines.BBPCB层数：四PCB尺寸市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说PCB日批

4、版Saturday,March28,页第 23 5432154321PCB DD固板螺LAYOUT 与CoM-335x的定位孔对应LAYOUT 双拼板，注意MARK点设置CCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页3 23 54321DESIGN54321PCB DD固板螺LAYOUT 与CoM-335x的定位孔对应LAYOUT 双拼板，注意MARK点设置CCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页3 23 54321DESIGN 结构固定镙 5 5 5 5 54321D

5、PIODCCBBAA市盈鹏飞科设日名业单板电校日EVB-335X-审日说PIO批日版Saturday,March28,页4 页共 23 54321GPIO0GPIO1GPMCD0(MMC1GPIO2GPMCGPIO3RMII2GPIO0GPIO1GPMCD1(MMC1GPIO2GPMCGPIO3RMII1CRSUSERGPIO0LCDGPIO1I2C1SCL(UART4GPIO2LCDGPIO3UART2GPIO0LCDGPIO1UART0GPIO2LCDGPIO3UART2GPIO0I2C2SCL(CAN0GPIO1GPMCGPIO2LCDGPIO3USB1GPIO0UART154321DP

6、IODCCBBAA市盈鹏飞科设日名业单板电校日EVB-335X-审日说PIO批日版Saturday,March28,页4 页共 23 54321GPIO0GPIO1GPMCD0(MMC1GPIO2GPMCGPIO3RMII2GPIO0GPIO1GPMCD1(MMC1GPIO2GPMCGPIO3RMII1CRSUSERGPIO0LCDGPIO1I2C1SCL(UART4GPIO2LCDGPIO3UART2GPIO0LCDGPIO1UART0GPIO2LCDGPIO3UART2GPIO0I2C2SCL(CAN0GPIO1GPMCGPIO2LCDGPIO3USB1GPIO0UART1GPIO1GPM

7、CGPIO2LCDGPIO3GPIOGPIO0USB0GPIO1GPMCGPIO2UART3GPIO3MCASP1GPIO0GPMCGPIO1GPMCGPIO2LCDGPIO0GPMCGPIO1GPMCGPIO2LCDGPIO0GPMCGPIO1GPMCA10(rmii2GPIO2MMC0GPIO0GPMCGPIO1GPMCA11(rmii2GPIO2MMC0GPIO0GPMCWAIT0(rmii2GPMCCSn1(MMC1GPIO2MMC0GPIO0GPMCGPIO1GPMCCSn2(MMC1GPIO2MMC054321-25March, -DDCCBB市盈鹏飞科AA设日名业单板电校日EVB

8、-335X-审批说版Saturday,March28,页5 页共23 5432154321-25March, -DDCCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审批说版Saturday,March28,页5 页共23 54321GPIO3 DESIGN GPIO3 DESIGN GPIO功能分配中断分配IOIOIO功能分GPIO 功能分USER 中断分扩展串口中市盈鹏飞科 IIC2设日名工业单板电校日EVB-335X- Back 审日说TOP 批日版Saturday, March 28, 页6 23 DESIGN 1）GPMC(GPMC_A0-A11)可作2）CoM-335x的P

9、IN(42-除PIN43可以用为GPIODESIGN 1）GPMCCoM-335x(PIN23-可作为GPIO或者LCD信号用2）CoM-335x的PIN(32-已经模块上被为数据总线或者EMMCDESIGN 1）GPMC(GPMC_A0-A11)可作2）CoM-335x的PIN(42-除PIN43可以用为GPIODESIGN 1）GPMCCoM-335x(PIN23-可作为GPIO或者LCD信号用2）CoM-335x的PIN(32-已经模块上被为数据总线或者EMMC的数据线，不可再用为GPIODESIGN U1提高2C0的驱动能力,与R13R14作兼容设计。 U1可根据实际情况焊接。市盈鹏飞

10、科LAYOUT设日名工业单板电LCDD_CLK做等校日EVB-审日说CoM-335X-批日版Saturday, March 28, 页7 23 LAYOUTUSB,Differentialpair差分阻抗90DESIGN 移动的应用（电池供电VDD_5VA为主电源输VDD_SS作为工程底板的电源输出。 EVB_PREN，作为底板电源上电控制信号。非移动应用：VDD_USB (79,80脚)1，移动应用：用于电源管理，通过USB口给锂电池充电。 2，非移动应用：空置。PMIC_Bx (66-69)脚处1，移动应用：用于电池管理2，非移动应用：空置54321ER13D2DPJ- 4321 U2 2

11、1CC738544DESIGN增板PMIC电源指 46100NF 9 BB3.3V43V UN_10K 125DESIGN采用CoM-335X的PMIC供电接口板DESIGN市盈鹏飞科让整个评估板具备电源管理功能AA设日名业单板电校日EVB-335X-审日说ER批日版Saturday,March28,页8 23 5432154321ER13D2DPJ- 4321 U2 21CC738544DESIGN增板PMIC电源指 46100NF 9 BB3.3V43V UN_10K 125DESIGN采用CoM-335X的PMIC供电接口板DESIGN市盈鹏飞科让整个评估板具备电源管理功能AA设日名业单

12、板电校日EVB-335X-审日说ER批日版Saturday,March28,页8 23 5432154321DDR24 R25 R26 49 D R31 1% 10R RXD0/MODE0 2 1% 10R 7R33 1% 10R CC 32R36 UN LED2/ PHYAddress/ModeSelect BB56XTAL1/CLKR41 LAYOUT C19&C20去耦电容应该尽量靠近CRS_DV/MODE2 4470PF 1423DESIGNNOTE:PHYAddress/ModeResistors分别设置PHY地址和工作模式设置PHY地址DESIGN设计参考i.MX50 LAN872

13、0A，默认上市盈鹏飞科晶振电容，公板上用了30PF，可调AA设日名业单板电校日EVB-335X-审日说RMII批日版Saturday,March28,页9 23 5432119YELLOW12345678GREEN75ohmx11 12 54321DDR24 R25 R26 49 D R31 1% 10R RXD0/MODE0 2 1% 10R 7R33 1% 10R CC 32R36 UN LED2/ PHYAddress/ModeSelect BB56XTAL1/CLKR41 LAYOUT C19&C20去耦电容应该尽量靠近CRS_DV/MODE2 4470PF 1423DESIGNNOT

14、E:PHYAddress/ModeResistors分别设置PHY地址和工作模式设置PHY地址DESIGN设计参考i.MX50 LAN8720A，默认上市盈鹏飞科晶振电容，公板上用了30PF，可调AA设日名业单板电校日EVB-335X-审日说RMII批日版Saturday,March28,页9 23 5432119YELLOW12345678GREEN75ohmx11 12 R30 10 R34 3569 ETH_L 754321VDD_5VA U5 DESIGN24位LCD接 定 0DD123456789 U6 CCU7 DESIGN使用 BB5 432 1 M1市盈鹏飞科DESIGN背光通

15、过CPU控制打AA设日名业单板电校日EVB-335X-审日说RGB565批日版Saturday,March28,页10 23 54321123456125243218 317 416 515 678954321VDD_5VA U5 DESIGN24位LCD接 定 0DD123456789 U6 CCU7 DESIGN使用 BB5 432 1 M1市盈鹏飞科DESIGN背光通过CPU控制打AA设日名业单板电校日EVB-335X-审日说RGB565批日版Saturday,March28,页10 23 54321123456125243218 317 416 515 6789DR 10 DR 18

16、17 16 15 14 13 12 11 10 C26 DR 18 17 16 15 14 13 12 11 10 C23 R44不焊，R45焊R44焊接，R45不54321DESIGN注意：SN75LVDS83B的每 组信号,U9 DACM2012-900-D 23 314 4 67ACM2012-900- 23 14 ACM2012-900- 23 14CC LCDD_VSYNC 2ACM2012-900- 823DESIGN不同的屏HS,DE,VS信号顺序不 143546 ACM2012-900-2 31BB 19 5 24bitLVDS液晶屏信号DESIGN NOTE: 有效触发上升沿

17、有市盈鹏飞科R64焊接,R66AA设日名业单板电校日EVB-335X-R64不接,R66下降沿有审54321DESIGN注意：SN75LVDS83B的每 组信号,U9 DACM2012-900-D 23 314 4 67ACM2012-900- 23 14 ACM2012-900- 23 14CC LCDD_VSYNC 2ACM2012-900- 823DESIGN不同的屏HS,DE,VS信号顺序不 143546 ACM2012-900-2 31BB 19 5 24bitLVDS液晶屏信号DESIGN NOTE: 有效触发上升沿有市盈鹏飞科R64焊接,R66AA设日名业单板电校日EVB-335

18、X-R64不接,R66下降沿有审日说RGB565默认为低电平,下降沿有批日版Saturday,March28,页11 页54321254321DD U10 51VIN 243 + CCUSB-TYPE-ACM2012-900-USBLC6-1461235243GBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说USB批日版Saturday,March28,页12 23 5432154321DD U10 51VIN 243 + CCUSB-TYPE-ACM2012-900-USBLC6-1461235243GBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说USB批日版Sat

19、urday,March28,页12 23 5432154321DD U12 51VIN 243 +1235 4GND CC981261 345257643USBLC6-BBLAYOUT 靠近USB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说USB批日版Saturday,March28,页13 23 5432154321DD U12 51VIN 243 +1235 4GND CC981261 345257643USBLC6-BBLAYOUT 靠近USB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说USB批日版Saturday,March28,页13 23 543215432

20、11 34LAYOUT CN11增加说明字符“(COM0-CN12增加说明字符 D2D 561234WF2001-7127349898WF2001-CC1 34LAYOUT CN13添加说明字符 2CN14添加说明字符 56123BB4WF2001-7127349898WF2001-LAYOUT 滤波电容靠近接插市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页14 23 54321543211 34LAYOUT CN11增加说明字符“(COM0-CN12增加说明字符 D2D 561234WF2001-7127349898WF2001-CC1 3

21、4LAYOUT CN13添加说明字符 2CN14添加说明字符 56123BB4WF2001-7127349898WF2001-LAYOUT 滤波电容靠近接插市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页14 23 5432154321DD1 34 2 561234WF2001-77CC9898BB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说RS232批日版Saturday,March28,页15 23 5432154321DD1 34 2 561234WF2001-77CC9898BB市盈鹏飞科AA设日名业单板电校日EVB-335

22、X-审日说RS232批日版Saturday,March28,页15 23 5432154321 C70 U18 U20 123512867RO VCC 2398 AD434DGND 557 4 61SDA/VCC 12 U22 12351286 RO 3443475GND 56 DI CC CAN0与I2C2U23 BB 3217CAN0_RX 5 86DESIGNI2C2复用，可控制电容触摸屏1即CN17可做电容屏接口使23市盈鹏飞科AA设45日名业单板电LAYOUT CN17添加说明字符 校日6EVB-335X-审日说&CAN&日批版Saturday,March28,页16 23 5432

23、11423 54321 C70 U18 U20 123512867RO VCC 2398 AD434DGND 557 4 61SDA/VCC 12 U22 12351286 RO 3443475GND 56 DI CC CAN0与I2C2U23 BB 3217CAN0_RX 5 86DESIGNI2C2复用，可控制电容触摸屏1即CN17可做电容屏接口使23市盈鹏飞科AA设45日名业单板电LAYOUT CN17添加说明字符 校日6EVB-335X-审日说&CAN&日批版Saturday,March28,页16 23 543211423 54321 D DU24 CN18 2416V 531216

24、V Green R127 C81 10K 100PF CC LAYOUT TVS管靠近对应的接 34 5612 3 78 9 100NF BB DRVSS U25 MIC5247-1 152 34市盈鹏飞科 AA设日名业单板电校日EVB-335X-审日说IIS批日版Saturday,March28,页17 23 54321 Y3 1NC GND423 54321 D DU24 CN18 2416V 531216V Green R127 C81 10K 100PF CC LAYOUT TVS管靠近对应的接 34 5612 3 78 9 100NF BB DRVSS U25 MIC5247-1 1

25、52 34市盈鹏飞科 AA设日名业单板电校日EVB-335X-审日说IIS批日版Saturday,March28,页17 23 54321 Y3 1NC GND423 54321DDCCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页18 23 54321232354321DDCCBB市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说批日版Saturday,March28,页18 23 54321232354321DDUN_FDN304PZ 2313 1 2CC 68K 68K 68K 68K 10K 10KCN20 Molex-47

26、352- 12 345 67 89BB 市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说MICROSD批日版Saturday,March28,页19 23 5432156784321 54321DDUN_FDN304PZ 2313 1 2CC 68K 68K 68K 68K 10K 10KCN20 Molex-47352- 12 345 67 89BB 市盈鹏飞科AA设日名业单板电校日EVB-335X-审日说MICROSD批日版Saturday,March28,页19 23 5432156784321 54321D DCCBBAA市盈鹏飞科设日名业单板电校日EVB-335X-审日说GPMC批日版Saturday,March28,页54321D DCCBBAA市盈鹏飞科设日名业单板电校日EVB-335X-审日说GPMC批日版Saturday,March28,页20 23 543211GPMC_54321DDCC651243 A A A BB