[参考译文] AM2432：OSPI 读取/写入，包含自定义闪存 — IS25WX064

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请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1561607/am2432-ospi-read-write-isse-with-the-custom-flash---is25wx064

器件型号：AM2432
主题： SysConfig 中讨论的其他器件

工具/软件：

TI 团队大家好、

根据有关 TI 官员 ( https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/latest/exports/docs/api_guide_am243x/EXAMPLES_DRIVERS_OSPI_FLASH_DIAG.html)的文档、我在 AM2432 上运行诊断示例并从 OSPI 闪存存储器 (IS25WX064) 中读取 SFDP 参数。我成功读取 SFDP 参数、但在 OSPI 读取/写入配置期间出现问题。

对于 OSPI 闪存读取/写入、我考虑了这一点 (ospi_flash_io) TI 的示例代码 — https://software-dl.ti.com/mcu-plus-sdk/esd/AM64X/08_00_00_21/exports/docs/api_guide_am64x/EXAMPLES_DRIVERS_OSPI_FLASH_IO.html ；但是、在调试期间、代码卡在 driver_open API 处。

我认为闪存或 OSPI 配置可能存在问题。我将分享 SFDP 参数和 SysConfig 数据。请根据数据告诉我可能的原因和解决方案。

SFDP 参数：

================================================
                      SFDP                      
================================================
SFDP Major Revision                       : 0x1
SFDP Minor Revision                       : 0x9
Number of Parameter Headers in this Table : 4

Types of Additional Parameter Tables in this flash
---------------------------------------------------
4 BYTE ADDRESSING MODE INSTRUCTIONS TABLE
NOR SPI PROFILE TABLE 
OCTAL DDR MODE COMMAND SEQUENCE TABLE

Parsing of OCTAL DDR MODE COMMAND SEQUENCE TABLE table not yet supported. 
JSON Data for the flash :

{

"flashSize": 8388608,
"flashPageSize": 256,
"flashManfId": "0x9D",
"flashDeviceId": "0x5B17",
"flashBlockSize": 131072,
"flashSectorSize": 4096,
"cmdBlockErase3B": "0xD8",
"cmdBlockErase4B": "0xDC",
"cmdSectorErase3B": "0x20",
"cmdSectorErase4B": "0x21",
"protos": {
"p111": {
"isDtr": false,
"cmdRd": "0x03",
"cmdWr": "0x02",
"modeClksCmd": 0,
"modeClksRd": 0,
"dummyClksCmd": 0,
"dummyClksRd": 0,
"enableType": "0",
"enableSeq": "0x00",
"dummyCfg": null,
"protoCfg": null,
"strDtrCfg": null
},
"p112": null,
"p114": null,
"p118": {
"isDtr": false,
"cmdRd": "0x7C",
"cmdWr": "0x84",
"modeClksCmd": 0,
"modeClksRd": 1,
"dummyClksCmd": 0,
"dummyClksRd": 7,
"enableType": "0",
"enableSeq": "0x00",
"dummyCfg": null,
"protoCfg": null,
"strDtrCfg": null
},
"p444s": null,
"p444d": null,
"p888s": null,
"p888d": {
"isDtr": false,
"cmdRd": "0x0B",
"cmdWr": "0x12",
"modeClksCmd": 0,
"modeClksRd": 0,
"dummyClksCmd": 8,
"dummyClksRd": 20,
"enableType": "0",
"enableSeq": "0x00",
"dummyCfg": {
"isAddrReg": false,
"cmdRegRd":"0x00",
"cmdRegWr":"0x00",
"cfgReg":"0x00000000",
"shift":0,
"mask":"0x00",
"bitP":20
},
"protoCfg": {
"isAddrReg": false,
"cmdRegRd": "0x00",
"cmdRegWr": "0x00",
"cfgReg": "0x00000000",
"shift": 0,
"mask": "0x00",
"bitP": 0
},
"strDtrCfg": {
"isAddrReg": false,
"cmdRegRd": "0x00",
"cmdRegWr": "0x00",
"cfgReg": "0x00000000",
"shift": 0,
"mask": "0x00",
"bitP": 0
}
},
"pCustom": { 
"fxn": null
}
},
"addrByteSupport": "1",
"fourByteAddrEnSeq": "0xA1",
"cmdExtType": "REPEAT",
"resetType": "0x30",
"deviceBusyType": "0",
"cmdWren": "0x06",
"cmdRdsr": "0x05",
"srWip":  0,
"srWel":  1,
"cmdChipErase": "0xC7",
"rdIdSettings": {
"cmd": "0x9F",
"numBytes": 5,
"dummy4": 0,
"dummy8": 0
},
"xspiWipRdCmd": "0x00",
"xspiWipReg": "0x00000000",
"xspiWipBit": 0,
"flashDeviceBusyTimeout": 20000000,
"flashPageProgTimeout": 120
}

SysConfig 脚本：

在 SFDP 参数->协议配置参数全部为 NULL。这可能会造成问题。

"protoCfg": {
"isAddrReg": false,
"cmdRegRd": "0x00",
"cmdRegWr": "0x00",
"cfgReg": "0x00000000",
"shift": 0,
"mask": "0x00",
"bitP": 0
},

请检查 SFDP 参数是否正确、或者我需要修改它。

3 个月前

0 admin 3 个月前

TI__Guru**** 2524370 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好、Nilesh

感谢您的问题。

“那你就回去吧。“

谢谢、

Vaibhav

0 admin 3 个月前

TI__Guru**** 2524370 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

请尽快告诉我。

正在等待您的回答。

0 admin 3 个月前

TI__Guru**** 2524370 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

这是我从 E2E 下载的闪存配置： — TMDS243EVM：sbl_JTAG_uniflash_am243x-evm_r5fss0-0_nortos_ti-arm-clang 的八路闪存配置 — 基于 Arm 的微控制器论坛 — 基于 Arm 的微控制器 — TI E2E 支持论坛

/* FLASH DevConfig */
Flash_DevConfig gFlashDevCfg_IS25WX064 =
{
    .cmdExtType = OSPI_CMD_EXT_TYPE_REPEAT,
    .enable4BAddr = TRUE,
    .addrByteSupport = 1,
    .fourByteAddrEnSeq = 0xA1,
    .cmdWren = 0x06,
    .cmdRdsr = 0x05,
    .srWip = (1 << 0),
    .srWel = (1 << 1),
    .xspiWipRdCmd = 0x00,
    .xspiWipReg = 0x00000000,
    .xspiWipBit = (1 << 0),
    .resetType = 0x30,
    .eraseCfg = {
        .blockSize = 131072,
        .sectorSize = 4096,
        .cmdBlockErase3B = 0xD8,
        .cmdBlockErase4B = 0xDC,
        .cmdSectorErase3B = 0x20,
        .cmdSectorErase4B = 0x21,
        .cmdChipErase = 0xC7,
    },
    .idCfg = {
        .cmd = 0x9F, /* Constant */
        .numBytes = 3,
        .dummy4 = 0,
        .dummy8 = 8,
        .addrSize = 0
    },
    .protocolCfg = {
        .protocol = FLASH_CFG_PROTO_8D_8D_8D,
        .isDtr = TRUE,
        .cmdRd = 0x7C,
        .cmdWr = 0x84,
        .modeClksCmd = 0,
        .modeClksRd = 0,
        .dummyClksCmd = 16,
        .dummyClksRd = 16,
        .enableType = 0,
        .enableSeq = 0x00,
        .protoCfg = {
            .isAddrReg = TRUE,
            .cmdRegRd = 0x85,
            .cmdRegWr = 0x81,
            .cfgReg = 0x00000000,
            .shift = 0,
            .mask = 0xFF,
            .cfgRegBitP = 231,
        },
        .strDtrCfg = {
            .isAddrReg = TRUE,
            .cmdRegRd = 0x85,
            .cmdRegWr = 0x81,
            .cfgReg = 0x00000000,
            .shift = 255,
            .mask = 255,
            .cfgRegBitP = 0,
        },
        .dummyCfg = {
            .isAddrReg = TRUE,
            .cmdRegRd = 0x85,
            .cmdRegWr = 0x81,
            .cfgReg = 0x00000001,
            .shift = 0,
            .mask = 0xFF,
            .cfgRegBitP = 16,
        },
    },
    .flashWriteTimeout = 120,
    .flashBusyTimeout = 72000000,
};

但问题仍然是一样的。