
Hi,
We are working on DM3730 based custom board , on which we are
configuring some pins as gpio. On measuring the voltage level , some of
them are showing correct behaviour(1.8 volts for high).
But , when
we
are configuring GPMC_WAIT3 signal as gpio_65 in Mode4 in the kernel as
well as u-boot ( as per the pad configuration register table : page
2462 of Rev N TRM) ,the voltage level for high
is only 500mv . We have also tried to configure GPMC_WAIT3 signal in
mode2 (UART4_rx) ,but then also we have observed same behavior.
the below line is copy pasted from TRM (showing the pad configuration register settings)
Register name phy.addr Mode 0 Mode 1 Mode 2 Mode 4 Mode 7
CONTROL_PADCONF_GPMC_WAIT2[31:16] 0x4800 20D0 gpmc_wait3 sys_ndmareq1 uart4_rx gpio_65 safe_mode
Please let us know , why the above said are pins are behaving wrong. Kindly suggest a solution for this.