9B90,EPI外扩SRAM-CY62158EV30问题

现在我的系统上外扩了SRAM,设置如下：

EPIDividerSet(EPI0_BASE, 4);

   EPIModeSet(EPI0_BASE, EPI_MODE_HB8 );

EPIConfigHB8Set(EPI0_BASE, EPI_HB8_MODE_ADMUX | EPI_HB8_CSCFG_ALE_DUAL_CS | EPI_HB8_WORD_ACCESS | EPI_HB8_WRWAIT_3 | EPI_HB8_RDWAIT_3, 1024);//EPI_HB8_MODE_ADMUX

   EPIAddressMapSet(EPI0_BASE, EPI_ADDR_RAM_SIZE_16MB | EPI_ADDR_RAM_BASE_6);

//EPIFIFOConfig(EPI0_BASE,EPI_FIFO_CONFIG_TX_EMPTY | EPI_FIFO_CONFIG_RX_FULL);

   while(HWREG(EPI0_BASE + EPI_O_STAT) &  EPI_STAT_INITSEQ) {}

然后定义数组：

uint8  imageDataBuf[MAX_EPAPER_TAG_NUM][EPAPER_DATA_NUM][EPAPER_DATA_LEN]__attribute__((at(0x60000000)));

问题1:

EPIConfigHB8Set();参数里是EPI_HB8_MODE_ADMUX而不是EPI_HB8_MODE_SRAM，当我用EPI_HB8_MODE_SRAM时，发现数据写入有问题，写一外数据就会在SRAM中看到好多个；

问题2:

系统运行后，有机率SRAM中有些内容不能被更改，是随机的；

问题3:

uint8  fls_para[PARA_NEW_LEN+READER_NAME_LEN] __attribute__((at(PARA_ADDR)))={0x12,0x98,0x32,};

uint16 fls_para1[(1024-PARA_NEW_LEN-READER_NAME_LEN)/2+1] __attribute__((at(PARA_ADDR+((PARA_NEW_LEN+READER_NAME_LEN)/2+1)*2)))={0x1212,0x3245};

uint8  imageDataBuf[MAX_EPAPER_TAG_NUM][EPAPER_DATA_NUM][EPAPER_DATA_LEN]__attribute__((at(0x60000000)));

这样定义编译烧写，会发现fls_para，fls_para1两个会全是0xff,而要先屏蔽imageDataBuf的定义，先烧写一次，再将其打开才能正常。