HI3531的nand flash测试

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void NAND_Init()
{
?? *(unsigned int *)(0x20030000 + 0xd0) = 7; delay_x(0X5000);
?? *(unsigned int *)(0x20030000 + 0xd0) = 6; delay_x(0X5000);
?? *(unsigned int *)(0x200f0000 + 0x1fc) = 0;//muxctrl_reg127 NF_DQ0 管脚复用控制寄存器
?? *(unsigned int *)(0x200f0000 + 0x200) = 0;
?? *(unsigned int *)(0x200f0000 + 0x204) = 0;
?? *(unsigned int *)(0x200f0000 + 0x208) = 0;
?? *(unsigned int *)(0x200f0000 + 0x20C) = 0;
?? *(unsigned int *)(0x200f0000 + 0x210) = 0;
?? *(unsigned int *)(0x200f0000 + 0x214) = 0;
?? *(unsigned int *)(0x200f0000 + 0x218) = 0;//7
?? *(unsigned int *)(0x200f0000 + 0x21C) = 0;
?? *(unsigned int *)(0x200f0000 + 0x220) = 0;
//p626
?? *(unsigned int *)(NANDC_ADDR +0X00) = 0x85;//NFC_CON
?? *(unsigned int *)(NANDC_ADDR +0X04) = 0x666;//NFC_PWIDTH 为读写脉冲宽度配置寄存器。
?? *(unsigned int *)(NANDC_ADDR +0X24) = 0x0;//NFC_INTEN 为中断使能寄存器
?? delay_x(0X500);

}
void NAND_Read_Page()
{
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x00003000;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 0x800;
???? delay_x(0X500);
???
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 5<<9 | 1<<6 | 1<<5??? | 0<<4???? | 1<<3? |1<<2????? | 1<<1???? | 0;//0xa6e;//NFC_OP 为操作寄存器。
???? delay_x(0X500);
????
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? delay_x(0X5000);
}

void NAND_Read_Random()
{
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x0000e005;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 0x20;
???? delay_x(0X500);
???
???
??? //*(unsigned int *)(NANDC_ADDR +0X1c) = 0x46e;//NFC_OP 为操作寄存器。
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 2<<9 | 1<<6 | 1<<5??? | 0<<4???? | 1<<3? |1<<2????? | 1<<1???? | 0;////NFC_OP 为操作寄存器。
???? delay_x(0X500);??
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? delay_x(0X5000);
}
void NAND_Write_Page()
{
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x00001080;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 8;
???? delay_x(0X500);
??? *(unsigned int *)(0x50000000) = 0x11223344;
???? delay_x(0X500);
??? *(unsigned int *)(0x50000004) = 0x55667788;
???? delay_x(0X500);
???
???
?//?? *(unsigned int *)(NANDC_ADDR +0X1c) = 0xa7d;//NFC_OP 为操作寄存器。
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 5<<9 | 1<<6 | 1<<5??? | 1<<4???? | 1<<3? |1<<2????? | 0<<1???? | 0;//NFC_OP 为操作寄存器。
???? delay_x(0X500);
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? delay_x(0X5000);
}

void NAND_ReadID()
{
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x20;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x00000090;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 5;
???? delay_x(0X500);
???
???
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 0x266;//NFC_OP 为操作寄存器。
???? delay_x(0X500);
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? delay_x(0X5000);
}
void NAND_Erase_Block()
{
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x0070d060;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??????
??? //*(unsigned int *)(NANDC_ADDR +0X1c) = 0x66c;//NFC_OP 为操作寄存器。
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 3<<9 | 1<<6 | 1<<5??? | 0<<4???? | 1<<3? |1<<2????? | 0<<1???? | 0;//0xa6e;//NFC_OP 为操作寄存器。
???? delay_x(0X500);
??? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
??? delay_x(0X5000);
}

int? NAND_test(unsigned int data)
{
???? int i=0;
???? UART_Init();
???? NAND_Erase_Block();
???? //写数据
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x00001080;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 0x800;
???? delay_x(0X500);
???? for(i=0;i<(0x800/4);i++)
???? {
??????? *(unsigned int *)(0x50000000 + i*4) = data;
??????? delay_x(0X500);
???? }

?//?? *(unsigned int *)(NANDC_ADDR +0X1c) = 0xa7d;//NFC_OP 为操作寄存器。
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 5<<9 | 1<<6 | 1<<5??? | 1<<4???? | 1<<3? |1<<2????? | 0<<1???? | 0;//NFC_OP 为操作寄存器。
???? delay_x(0X500);
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? //读数据
???? NAND_Read_Page();
???? //随即读
??? *(unsigned int *)(NANDC_ADDR +0X10) = 0x0;//NFC_ADDRL 为低位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X14) = 0x0;//NFC_ADDRH 为高位地址配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X0c) = 0x0000e005;//NFC_CMD 为命令字配置寄存器。
???? delay_x(0X500);
??? *(unsigned int *)(NANDC_ADDR +0X18) = 0x800;
???? delay_x(0X500);
???
???
??? //*(unsigned int *)(NANDC_ADDR +0X1c) = 0x46e;//NFC_OP 为操作寄存器。
???????????????????????????????????? //地址周期 cmd1_en addr_wen data_wen? cmd2_en ready/busy data_ren? read_stus_en
??? *(unsigned int *)(NANDC_ADDR +0X1c) = 2<<9 | 1<<6 | 1<<5??? | 0<<4???? | 1<<3? |1<<2????? | 1<<1???? | 0;////NFC_OP 为操作寄存器。
???? delay_x(0X500);??
???? retu = *(unsigned int *)(NANDC_ADDR +0X20) ;//NFC_STATUS 为状态寄存器。
???? //判断数据是否正确。
???? for(i=0;i<(0x800/4);i++)
???? {
??????? retu = *(unsigned int *)(0x50000000 + i*4);
??????? if(retu != data)
?????????? return 1;
??????? delay_x(0X500);
???? }
????
???? return 0;
}

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?retu2[0] = NAND_test(0x00000000); ?retu2[1] = NAND_test(0xffffffff); ?retu2[2] = NAND_test(0x5a5a5a5a); ?retu2[3] = NAND_test(0xa5a5a5a5); ?retu2[4] = NAND_test(0x12345678); ?retu = retu2[0]+retu2[2]+retu2[1]+retu2[3]+retu2[4];