TPS25750：We have set up the PD protocol and have successfully communicated according to the protocol, but the GPIO pin output is not normal.

? ??

Prodigy 30 points

Part Number: TPS25750

Tool/software:

PD 充电协议和 GPIO 设置如图所示。TPS25750 以固定的 20V 电压与充电器通信，但所有四个 GPIO 输出都设置为低电压。应该如何解决这个问题？

8 months ago

0 Raymond Lin 8 months ago

TI__Mastermind 33946 points

Hi,

Can you elaborate on the specific issue with the GPIO pins?

Thanks and Regards,

Raymond Lin

0 ? ?? 8 months ago in reply to Raymond Lin

Prodigy 30 points

According to the setting, the GPIO should be set to high level after the communication protocol is successfully established. However, after the TPS25750 communicates with the charger at a fixed 20V, all GPIO pins are at low level and do not rise.

0 Raymond Lin 8 months ago in reply to ? ??

TI__Mastermind 33946 points

Hi,

Can you provide a schematic or block diagram of your design?

0 ? ?? 8 months ago in reply to Raymond Lin

Prodigy 30 points

这是 TPS25750 和 STM32 的示意图，TPS25750连接到 BQ29752，BQ29752执行正常充电。

0 Raymond Lin 8 months ago in reply to ? ??

TI__Mastermind 33946 points

Hi,

Can you also provide the JSON file you used for your application? I'll try to re-create your setup on my end using TPS25750EVM and see if the issue is replicable.

0 ? ?? 8 months ago in reply to Raymond Lin

Prodigy 30 points

V1.0.rar
The attached file is a JSON file.

0 Ghouse Mohiuddin23 7 months ago in reply to ? ??

TI__Expert 7830 points

It is your project file that you have created using the TPS25750 GUI

Power management

Power management forum

TPS25750：We have set up the PD protocol and have successfully communicated according to the protocol, but the GPIO pin output is not normal.