knowledge:3d_print:2022102301
差别
这里会显示出您选择的修订版和当前版本之间的差别。
| 两侧同时换到之前的修订记录前一修订版后一修订版 | 前一修订版 | ||
| knowledge:3d_print:2022102301 [2023/06/14 12:32] – 弘毅 | knowledge:3d_print:2022102301 [2025/10/11 02:55] (当前版本) – 外部编辑 127.0.0.1 | ||
|---|---|---|---|
| 行 62: | 行 62: | ||
| int8_t xflash_init(void) | int8_t xflash_init(void) | ||
| { | { | ||
| - | _CS_HIGH(); | + | |
| - | SET_OUTPUT(XFLASH_PIN_CS); | + | SET_OUTPUT(XFLASH_PIN_CS); |
| - | XFLASH_SPI_ENTER(); | + | XFLASH_SPI_ENTER(); |
| - | if (!xflash_mfrid_devid()) return 0; | + | if (!xflash_mfrid_devid()) return 0; |
| - | return 1; | + | return 1; |
| } | } | ||
| </ | </ | ||
| 行 74: | 行 74: | ||
| int xflash_mfrid_devid(void) | int xflash_mfrid_devid(void) | ||
| { | { | ||
| - | _CS_LOW(); | + | |
| - | _SPI_TX(_CMD_MFRID_DEVID); | + | _SPI_TX(_CMD_MFRID_DEVID); |
| - | uint8_t cnt = 3; // 3 address bytes | + | uint8_t cnt = 3; // 3 address bytes |
| - | while (cnt--) | + | while (cnt--) |
| - | _SPI_TX(0x00); | + | _SPI_TX(0x00); |
| - | uint8_t xflash_mfrid = _SPI_RX(); | + | uint8_t xflash_mfrid = _SPI_RX(); |
| - | uint8_t xflash_devid = _SPI_RX(); | + | uint8_t xflash_devid = _SPI_RX(); |
| - | _CS_HIGH(); | + | _CS_HIGH(); |
| - | return | + | return |
| - | ((xflash_mfrid == _MFRID_W25X20CL) && (xflash_devid == _DEVID_W25X20CL)) || | + | ((xflash_mfrid == _MFRID_W25X20CL) && (xflash_devid == _DEVID_W25X20CL)) || |
| - | ((xflash_mfrid == _MFRID_GD25Q20C) && (xflash_devid == _DEVID_GD25Q20C)); | + | ((xflash_mfrid == _MFRID_GD25Q20C) && (xflash_devid == _DEVID_GD25Q20C)); |
| } | } | ||
| </ | </ | ||
| 通过测试，发现该问题会有LCD2004硬件的SD卡CS到主控接触不良引起。当LCD2004的SD卡的CS到主控接触不良时，就会引起这个错误。 | 通过测试，发现该问题会有LCD2004硬件的SD卡CS到主控接触不良引起。当LCD2004的SD卡的CS到主控接触不良时，就会引起这个错误。 | ||
knowledge/3d_print/2022102301.1686745967.txt · 最后更改: 2025/10/11 02:55 (外部编辑)