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楼主 |
发表于 2018-5-15 16:23:19
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硬汉哥,想问下在一般调试中会在工程中添加xip文件,指定启动配置数据(前512字节),这个指定数据结构体中是否应该就是可以帮忙开QE位的吧,如下配置代码:
const flexspi_nor_config_t Qspiflash_config =
{
.memConfig =
{
.tag = FLEXSPI_CFG_BLK_TAG,
.version = FLEXSPI_CFG_BLK_VERSION,
.readSampleClkSrc = kFlexSPIReadSampleClk_LoopbackInternally,
.csHoldTime = 3u,
.csSetupTime = 3u,
.deviceModeCfgEnable = true,
.deviceModeType = 1,//Quad Enable command
.deviceModeSeq.seqNum = 1,
.deviceModeSeq.seqId = 4,
.deviceModeArg = 0x00040,//Set QE
.deviceType = kFlexSpiDeviceType_SerialNOR,
.sflashPadType = kSerialFlash_4Pads,
.serialClkFreq = kFlexSpiSerialClk_100MHz,//80MHz for Winbond, 100MHz for GD, 133MHz for ISSI
.sflashA1Size = 4u * 1024u * 1024u,//4MBytes
.dataValidTime = {16u, 16u},
.lookupTable =
{
// //Fast Read Sequence
// [0] = FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0x0B, RADDR_SDR, FLEXSPI_1PAD, 0x18),
// [1] = FLEXSPI_LUT_SEQ(DUMMY_SDR, FLEXSPI_1PAD, 0x08, READ_SDR, FLEXSPI_1PAD, 0x08),
// [2] = FLEXSPI_LUT_SEQ(JMP_ON_CS, 0, 0, 0, 0, 0),
//Quad Input/output read sequence
[0] = FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0xEB, RADDR_SDR, FLEXSPI_4PAD, 0x18),
[1] = FLEXSPI_LUT_SEQ(DUMMY_SDR, FLEXSPI_4PAD, 0x06, READ_SDR, FLEXSPI_4PAD, 0x04),
[2] = FLEXSPI_LUT_SEQ(0, 0, 0, 0, 0, 0),
//Read Status
[1*4] = FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0x05, READ_SDR, FLEXSPI_1PAD, 0x04),
//Write Enable
[3*4] = FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0x06, STOP, 0, 0),
//Write status
[4*4] = FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0x01, WRITE_SDR, FLEXSPI_1PAD, 0x4),
},
},
.pageSize = 256u,
.sectorSize = 4u * 1024u,
};
检查配置和使用的lUT指令没发现错误,但是烧录进去程序起不来,也就是说配置QE位没成功 |
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