imx7 GPIO pullup on pin used for special function

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imx7 GPIO pullup on pin used for special function

574 次查看
eoin_oconnell
Contributor I

 

Hi all,

I am using the following pins for the SIM functionality in my IMX7d.

 

  1. pinctrl_sim1: sim-grp {
  2. fsl,pins = <
  3. MX7D_PAD_EPDC_DATA00__SIM1_PORT2_TRXD 0x30 /* SODIMM 111 5k pullup*/
  4. MX7D_PAD_EPDC_DATA01__SIM1_PORT2_CLK 0x00 /* SODIMM 113*/
  5. MX7D_PAD_EPDC_DATA02__SIM1_PORT2_RST_B 0x00 /* SODIMM 115*/
  6. MX7D_PAD_EPDC_DATA03__SIM1_PORT2_SVEN 0x00 /* SODIMM 117*/
  7. MX7D_PAD_EPDC_DATA04__SIM1_PORT2_PD 0x50 /* SODIMM 119 47k pull up*/
  8. >;
  9. };
 

I would like to know if even though the pin is being used for SIM special function if my 5k pull-up will still be activated? I do not have any option to put a pullup on my PCB, so this is my last resort

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569 次查看
igorpadykov
NXP Employee
NXP Employee

Hi Eoin

 

>I would like to know if even though the pin is being used for SIM special

>function if my 5k pull-up will still be activated?

 

yes it is activated.

 

Best regards
igor

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