TI中文支持网通信方式：异步，地址数据复用，虽然设定是使用24根线，但使用低16bit地址，8bit数据
问题：发现写的时候波形不对，地址和数据都不对
以下是我的config配置：
#define STNOR_GPMC_CONFIG1 0x00000200#define STNOR_GPMC_CONFIG2 0x00070900#define STNOR_GPMC_CONFIG3 0x00020201#define STNOR_GPMC_CONFIG4 0x06010701#define STNOR_GPMC_CONFIG5 0x0009070C#define STNOR_GPMC_CONFIG6 0x08000000
在cs_request后，读出来的config7是0x00000f41
pin config:
{"gpmc_ad0.gpmc_ad0", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad1.gpmc_ad1", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad2.gpmc_ad2", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad3.gpmc_ad3", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad4.gpmc_ad4", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad5.gpmc_ad5", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad6.gpmc_ad6", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad7.gpmc_ad7", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad8.gpmc_ad8", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad9.gpmc_ad9", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad10.gpmc_ad10", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad11.gpmc_ad11", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad12.gpmc_ad12", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad13.gpmc_ad13", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad14.gpmc_ad14", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_ad15.gpmc_ad15", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_a0.gpmc_a0", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a1.gpmc_a1", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a2.gpmc_a2", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a3.gpmc_a3", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a4.gpmc_a4", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a5.gpmc_a5", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a6.gpmc_a6", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a7.gpmc_a7", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_a8.gpmc_a8", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
{"gpmc_wait3.gpmc_wait3", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_wpn.gpmc_wpn", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT_PULLUP},
{"gpmc_csn3.gpmc_csn3", OMAP_MUX_MODE0 | AM33XX_PULL_DISA},
{"gpmc_advn_ale.gpmc_advn_ale", OMAP_MUX_MODE0 | AM33XX_PULL_DISA},
{"gpmc_oen_ren.gpmc_oen_ren", OMAP_MUX_MODE0 | AM33XX_PULL_DISA},
{"gpmc_wen.gpmc_wen", OMAP_MUX_MODE0 | AM33XX_PULL_DISA},
在执行echo指令的时候波形抓出来：
好像上传不了图片
qingzhu wei：
有人在吗？可否指导下？
govin huang：
我的电脑无法发新贴，只能在这里请教了！
AM335X 是否可以将nand配置在CS0使用0x10000000地址256M宽度！然后配置访问FPGA的CS1~CS3配置在0x08000000这边的地址！
//CS1 HWREG(GPMC_CONFIG_REGS + 0xA8) = 0x00000000; HWREG(GPMC_CONFIG_REGS + 0x90) = 0x28001200; HWREG(GPMC_CONFIG_REGS + 0x94) = 0x000f1001; HWREG(GPMC_CONFIG_REGS + 0x98) = 0x22060411; HWREG(GPMC_CONFIG_REGS + 0x9C) = 0x0e097018; HWREG(GPMC_CONFIG_REGS + 0xA0) = 0x000d1010; HWREG(GPMC_CONFIG_REGS + 0xA4) = 0x09070000; HWREG(GPMC_CONFIG_REGS + 0xA8) = 0x00000F48; //CS2 HWREG(GPMC_CONFIG_REGS + 0xD8) = 0x00000000; HWREG(GPMC_CONFIG_REGS + 0xC0) = 0x28001200; HWREG(GPMC_CONFIG_REGS + 0xC4) = 0x000f1001; HWREG(GPMC_CONFIG_REGS + 0xC8) = 0x22060411; HWREG(GPMC_CONFIG_REGS + 0xCC) = 0x0e097018; HWREG(GPMC_CONFIG_REGS + 0xD0) = 0x000d1010; HWREG(GPMC_CONFIG_REGS + 0xD4) = 0x09070000; HWREG(GPMC_CONFIG_REGS + 0xD8) = 0x00000F49; //CS3 HWREG(GPMC_CONFIG_REGS + 0x108) = 0x00000000; HWREG(GPMC_CONFIG_REGS + 0xF0) = 0x28001200; HWREG(GPMC_CONFIG_REGS + 0xF4) = 0x000f1001; HWREG(GPMC_CONFIG_REGS + 0xF8) = 0x22060411; HWREG(GPMC_CONFIG_REGS + 0xFC) = 0x0e097018; HWREG(GPMC_CONFIG_REGS + 0x100) = 0x000d1010; HWREG(GPMC_CONFIG_REGS + 0x104) = 0x09070000; HWREG(GPMC_CONFIG_REGS + 0x108) = 0x00000F4a;
我配置完这个后，访问0x08000000~0x0affffff中任意个地址都出现地址异常！直接就死掉！
跟踪后都是跳到了
LDR PC,Reset_Addr ; Reset LDR PC,Undefined_Addr ; Undefined instructions LDR PC,SWI_Addr ; Software interrupt (SWI/SVC) LDR PC,Prefetch_Addr ; Prefetch abort LDR PC,Abort_Addr ; Data abort LDR PC,Unused_Addr ; RESERVED LDR PC,IRQ_Addr ; IRQ LDR PC,FIQ_Addr ; FIQ
中的LDR PC,Abort_Addr ; Data abort这里？
请求解答：：：：是不能这样配置还是我什么地方有问题？？？？？？？
govin huang：
{"gpmc_a0.gpmc_a0", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a1.gpmc_a1", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a2.gpmc_a2", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a3.gpmc_a3", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a4.gpmc_a4", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a5.gpmc_a5", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a6.gpmc_a6", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a7.gpmc_a7", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},{"gpmc_a8.gpmc_a8", OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA},
应该配置成OMAP_MUX_MODE4才是地址复用16~24吧！！
govin huang：
读出来的config7是0x00000f41配置，你访问的是什么地址？访问0x01000000~地址吗？
qingzhu wei：
回复 govin huang:
govin huang
读出来的config7是0x00000f41配置，你访问的是什么地址？访问0x01000000~地址吗？
govin huang：
回复 govin huang:
已经解决，mmu地址配错了
qingzhu wei：
回复 govin huang:
govin huang
已经解决，mmu地址配错了
