液晶屏不正常显示,bootloader的设置需要注意~~
+------------------------------------------------------------+| TE/OK2440 Bootloader VER-5.0 www.witech.com.cn |
|------------------------------------------------------------|
|------------------------------------------------------------|
|CPU ID is 0x32440001 |
|FCLK=400MHz,HCLK=100MHz,PCLK=50MHz, CPU is running at 400MHz|
|UPLL=96MHz, UCLK=48MHz |
|Serial port 0, Baud rate is 115200. |
|OS image stored in NAND Flash. |
|Autoboot delay is 0 seconds. |
+------------------------------------------------------------+bootloader启动时候,按任意键进入。如下所示:
+------------------------------------------------------------+
| Select Menu |
+------------------------------------------------------------+
| Download & Run |
| Download to flash |
| Download From UART |
| Boot My Application |
| Boot Linux |
| Boot Wince |
| Erase Flash Partition |
| Config parameters |
+------------------------------------------------------------+这是选择 7 参数配置 +------------------------------------------------------------+
| Config parameters |
+------------------------------------------------------------+
[ 0] auto-run : 0x00000003 (3)
[ 1] rundelay : 0x00000000 (0)
[ 2] serial : 0x00000000 (0)
[ 3] AppRunAddr : 0x32000000 (838860800)
[ 4] baudrate : 0x0001c200 (115200)
[ 5] machine : 0x000000c1 (193)
[ 6] runAddr : 0x30201000 (807407616)
[ 7] rootfs : 0x00000003 (3)
[ 8] tty : 0x00000000 (0)
[ 9] displayS : 0x00000000 (0)
displayM : 0x00000000 (0)
initrdA : 0x30200000 (807403520)
initrdL : 0x02000000 (33554432)
memsize : 0x04000000 (67108864)
userpara : 0x00000000 (0)
: Exit
其中:选项 【9】 为分辨率设置 , 设置‘0’为320X240设置‘1’为640X480 设置‘2’ 为800X600设置成‘3’为 800X480设置成‘4’ 为480X272
选项【10】为显示模式的配置: 设置为‘0’是lcd显示模式。 设置‘1’,为VGA模式。 设置'2' 为TV模式。please select item:后输入要修改的选项,回车后please select item:输入要设置成的数值。
全部配置完成后please select item:15
Do you want to save parameters? press y or Y for save.选择15 推出,并键入 Y 进行boot的保存。 先顶后看。 :lol
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