22、12.clock配置举例: pll4 pll8 pll9pll12= 297= 297= 297= 297配置项配置项含义pll4pll4 时钟频率pll8pll8 时钟频率pll9pll9 时钟频率pll12pll12 时钟频率第 10 页共 68 页2. dram 配置2.1.dram_para配置举例:dram_clk dram_type dram_zq dram_odt_en dram_para1 dram_para2 dram_mr0= 648...
Found A40 [ 0.120]Found A40 [ 0.122]Found A40 [ 0.128]PMU: [ 0.129]AXP221 [ 0.131]ddr voltage = 1500 mv [ 0.134]DRAM CLK =576 MHZ [ 0.137]DRAM Type =3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3) [ 0.142]DRAM zq value: 0x003b3bfb [ 0.148]DRAM SIZE =1024 M [ 0.152]DRAM simple...
[ 0.166]DRAM CLK =576 MHZ [ 0.169]DRAM Type =3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDD...
2、SOC FANOUTPMUREVISION HISTORYDRAMCopyright © 2016 by Allwinner.s0124M晶振1.高频晶振的网络X24MO上串接电阻必须保留,方便调试时钟信号幅度,晶振选型20 ppm/无源晶振。2. 晶体尽量靠近IC摆放,避免晶体走线过长。3. 晶振的匹配电容必须靠近晶振摆放4.晶体及其走线区域的和相邻层,用GND保护。5.晶体及其走线...
[clock]9 2.dram 配置 10. 2.1.[dram_para] 10 3.I2C 总线12. 3.1.[twi0]12 3.2.[twi1]12 3.3.[twi2]12 3.4.[twi3]12 3.5.[twi4]13 4. 串口(UART)14. 4.1.[uart0]14 4.2.[uart2]14 4.3.[uart3]14 5.SPI总线16 5. 5.1.[spi0]16 5.2.[spi1]16 5.3.[spi2] 17 5.4.[spi3]...
CLK串接电阻靠近主控摆放。串阻与主控CLK连接走线距离≤300mil。 2. ESD器件靠近Device( 或Wifi模组)摆放。 3. VDD网络上的电阻和电容网络靠近Devcie( 或Wifi模组)摆放。 4. 背面 放置插装器件,防止插装器件管脚 卡插拔。 5. 信号线走线要求: (1)走线阻抗50欧; (2)线间距不小于2倍线宽; (3)D0~D3...
[ 305.118779] drivers/devfreq/sunxi_dramfreq.c:sunxi_dramfreq_reboot: stop dramfreq done[ 305.128276] sunxi-mmc 1c11000.sdmmc: try to disable cache[ 305.134399] sunxi-mmc 1c11000.sdmmc: sdc set ios: clk 50000000Hz bm PP pm ON vdd 16 width 8 timing LEGACY(SDR12) dt B[ 305.146313]...
[linux-sunxi] A40i Board FEL USB/Boot .
Block Diagram SIM Socket 4x USB Host USB-A Digital Camera Analog Camera 4 lanes DSI HDMI OUT 24bit RGB LVDS LCD 4G PCIe Socket parallel-CSI TVIN CM-A40i MIPI-DSI TMDS RBG LCD LVDS USB2 GL850G USB_HUB USB OTG Download USB1 USB0 PMU AXP221S POWER DDR3/DDR3L 2x16bits DRAM A40i ...
Found A40 [ 0.120]Found A40 [ 0.122]Found A40 [ 0.128]PMU: [ 0.129]AXP221 [ 0.131]ddr voltage = 1500 mv [ 0.134]DRAM CLK =576 MHZ [ 0.137]DRAM Type =3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3) [ 0.142]DRAM zq value: 0x003b3bfb [ 0.148]DRAM SIZE =1024 M [ 0.152]DRAM simple...