TPS65981 外挂flash问题

liu wang

Other Parts Discussed in Thread: TPS65981

我们这儿使用的TPS65981的芯片，参考的TPS65981_EVM板绘制了电路原理图，现在有几个疑问：
1、我们通过TPS6598x Application Customization Tool配置好了，保存得到两个bin文件，分别是low region和full flash image，如果向外挂的flash烧写bin文件的话，应该选择哪个bin文件？
2、保存bin文件的时候，TPS6598x Application Customization Tool提示region 1 offset和region 2 offset怎么设置，是否使用默认的设置0x2000和0x12000？
谢谢！

7 年多前

0 Star Xu 7 年多前

TI__Guru*** 130456 points

The function of updating the SPI Flash contents over I2C will only work once there is already a valid configuration image inside the flash. In other words, the TPS65981 has to be fully booted and in "APP" mode for this function to work.

Make sure you are using the "Full Flash" .bin file when you are updating the SPI Flash. Once you have a valid full flash image onto the TPS65981, you can double check that it is functional by checking the Mode register and reading back "APP".

Once your TPS65981 is fully operational, you can then use the Low Region .bin file to update the contents of the SPI Flash over I2C.