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MX25L51245G 使能 qspi 模式之后,后续读、写操作都要用4线,目前 sfud 库的写都是 1线。 #36
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写操作用多线好像没有太大意义。这块代码有对比过 W26Q 系列的驱动吗 |
但是进入qspi模式之后,实测 mx25 不响应单线操作。 |
对比了一下 n25q128a 和 MX25L51245G。 |
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MX25L51245G 使能 qspi 模式之后,后续读、写操作都要用4线,目前 sfud 库的写都是 1线。
实测 MX25L51245G 芯片:
1、上电之后,在 sfdp 读取阶段(1线模式)正常;
2、进入 qspi 模式之后,后续命令(开启 4byte addr、write、erase等等)全部失败。
请问这个问题怎么解决比较好?
我想到的是修改 spi_write_read 函数,根据芯片 状态、配置信息 决定用 1线 还是 4线操作。
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