STWLC38 GPIO Functions

[pEEter]

Can you help to explain the function of these GPIO settings on the RX IC?

0x0A - RX power Out OD - this function is not mentioned in the datasheet or EVK user guide but is available through the GUI. How does it work?

0x05 - what does FW ready indicate? Is it related to Vout turn on? Is this a Push Pull or Open Drain pin?

0x29 and 0x2A - What is the function here? Does this pin act based on any information on the IC, or does it just stay high/low?

[willzhou]

Hi Sir

GPIO_FUNC_RX_PWR_OUT_OD = 0x0A,            #///< 0A - out_od: Power output enabled (0=on, 1=off)

when vout is turn on, this gpio will be open drain output high

GPIO_FUNC_FW_RDY = 5,                   #///< 05 - out_pp: High on FW ready (before main loop)

0x05 - what does FW ready indicate? -- when rx is power on and fw feady, this is push pull high

GPIO_FUNC_OD_LO = 0x29,                    #///< 29 - out_od: driven low

GPIO_FUNC_OD_HI = 0x2A,                    #///< 2A - out_od: driven high

GPIO_FUNC_PP_LO = 0x2B,                    #///< 2B - out_pp: driven low

GPIO_FUNC_PP_HI = 0x2C,                    #///< 2C - out_pp: driven high

about wlc38 gpio control please refer this link for more infor

https://github.com/STwirelesscharger/Python_FT260_ST_WLC/blob/main/wlc38_register.py

https://github.com/STwirelesscharger/Python_FT260_ST_WLC/blob/main/a8_wlc38_gpio_control.py