Dear nxp
I have attached winbond W9825G6KH-6I datasheet.
I want to know recommend value for PAD setting especially SW_MUX_CTL_PAD_GPIO_EMC_26 SW MUX Control Register when SDRAM CLK set to 163MHz.
Below is for now.
<pin peripheral="SEMC" signal="semc_clk" pin_num="B3" pin_signal="GPIO_EMC_26">
<pin_features>
<pin_feature name="software_input_on" value="Disable"/>
<pin_feature name="hysteresis_enable" value="Disable"/>
<pin_feature name="pull_up_down_config" value="Pull_Down_100K_Ohm"/>
<pin_feature name="pull_keeper_select" value="Keeper"/>
<pin_feature name="pull_keeper_enable" value="Enable"/>
<pin_feature name="open_drain" value="Disable"/>
<pin_feature name="speed" value="MHZ_100"/>
<pin_feature name="drive_strength" value="R0_6"/>
<pin_feature name="slew_rate" value="Slow"/>
</pin_features>
</pin>
thanks
Bryan
已解决! 转到解答。
Hi @bryan_hong ,
Normally we set it to
hysteresis_enable: Enable, speed: MHZ_200, drive_strength: R0_7, slew_rate: Fast
You can refer to the SEMC demo. The pin parameter is set in pin_mux.c
Regards,
Jing
Hi @bryan_hong ,
Normally we set it to
hysteresis_enable: Enable, speed: MHZ_200, drive_strength: R0_7, slew_rate: Fast
You can refer to the SEMC demo. The pin parameter is set in pin_mux.c
Regards,
Jing