通过在 OpenOCD 中添加 Flash ID 修复未知闪存设备错误

尝试调试 RP2040（R-Pi Pico）上的固件时，OpenOCD 给出错误“错误：未知闪存设备（ID 0x00184068）”

该板有一个存储芯片“BY25Q128ES - 128M BIT SPI NOR FLASH”

在Raspberry Pi 论坛上，他们讨论了修补文件src/flash/nor/spi.c 的必要性

我找到了内存芯片的数据表，但我不太明白我需要在其中查找哪些参数才能正确填写FLASH_ID

宏本身创建该类型的对象flash_device并具有签名：

/// @file: src/flash/nor/spi.h

/* data structure to maintain flash ids from different vendors */
struct flash_device {
    const char *name;
    uint8_t read_cmd;
    uint8_t qread_cmd;
    uint8_t pprog_cmd;
    uint8_t erase_cmd;
    uint8_t chip_erase_cmd;
    uint32_t device_id;
    uint32_t pagesize;
    uint32_t sectorsize;
    uint32_t size_in_bytes;
};

#define FLASH_ID(n, re, qr, pp, es, ces, id, psize, ssize, size) \
{                                   \
    .name = n,                      \
    .read_cmd = re,                 \
    .qread_cmd = qr,                \
    .pprog_cmd = pp,                \
    .erase_cmd = es,                \
    .chip_erase_cmd = ces,          \
    .device_id = id,                \
    .pagesize = psize,              \
    .sectorsize = ssize,            \
    .size_in_bytes = size,          \
}

/// @file: src/flash/nor/spi.c

// ....

 /* Shared table of known SPI flash devices for SPI-based flash drivers. Taken
  * from device datasheets and Linux SPI flash drivers. */
const struct flash_device flash_devices[] = {
    /* Note: device_id is usually 3 bytes long, however the unused highest byte counts
     * continuation codes for manufacturer id as per JEP106xx.
     *
     * All sizes (page, sector/block and flash) are in bytes.
     *
     * Guide to select a proper erase command (if both sector and block erase cmds are available):
     * Use 4kbit sector erase cmd and set erase size to the size of sector for small devices
     * (4Mbit and less, size <= 0x80000) to prevent too raw erase granularity.
     * Use 64kbit block erase cmd and set erase size to the size of block for bigger devices
     * (8Mbit and more, size >= 0x100000) to keep erase speed reasonable.
     * If the device implements also 32kbit block erase, use it for 8Mbit, size == 0x100000.
     */
    /*        name                  read qread  page  erase chip  device_id   page   erase   flash
     *                              _cmd _cmd   _prog _cmd* _erase            size   size*   size
     *                                          _cmd        _cmd
     */
    FLASH_ID("st m25pe10",          0x03, 0x00, 0x02, 0xd8, 0x00, 0x00118020, 0x100, 0x10000, 0x20000),
//....
    FLASH_ID("st m25p05",           0x03, 0x00, 0x02, 0xd8, 0xc7, 0x00102020, 0x80,  0x8000,  0x10000),
//...
    FLASH_ID("sp s25fl512s",        0x13, 0x00, 0x12, 0xdc, 0xc7, 0x00200201, 0x200, 0x40000, 0x4000000),

在这种情况下，什么是“pagesize和” sectorsize？

在闪存芯片的数据表中它应该叫什么？