I do this for them pins in my dts file makes it easier to read
BONE_P8_31 (PIN_INPUT | MUX_MODE6) /* (V4)
lcd_data14.uart5_ctsn */
BONE_P8_32 (PIN_OUTPUT | MUX_MODE6) /* (T5)
lcd_data15.uart5_rtsn */
BONE_P8_33 (PIN_OUTPUT | MUX_MODE6) /*
uart4_rtsn */
not using p8-35
On 5/12/2016 7:17 PM, Paulo Sherring wrote:
> Hi all! I am trying to use the eQEP device driver, found here:
> https://github.com/Teknoman117/beaglebot
>
> So, I could get the module loaded by echoing the device tree to cape
> manager. After disabling eMMC and HDMI, all 0-2 modules loaded OK.
> I hooked up my encoder, which uses open NPN to the board, powering it
> up from the 5V onboard.
> Since the output is open collector NPN, i needed to use pullup. So, i
> edited the dts file as follows:
> (For eQEP1)
> 0x0D8 0x32 /* P8_31 = GPIO0_10 = EQEP1_index, MODE2 */
> 0x0DC 0x32 /* P8_32 = GPIO0_11 = EQEP1_strobe, MODE2 */
> 0x0D4 0x32 /* P8_33 = GPIO0_9 = EQEP1B_in, MODE2 */
> 0x0D0 0x32 /* P8_35 = GPIO0_8 = EQEP1A_in, MODE2 */
>
> After compiling, installing and echoing it again to capemgr, the entry
> in sysfs is created as expected, but, when i read pinmux config, I
> read back 0X2A. After overwriting it with devmem, I also get again
> 0X2A. Can anyone give me any direction?
>
> My setup:
> BeagleBone Black Element14
> KernVer: 4.4.0-bone-rt-r3.1
> uEnv:
> dtb=am335x-boneblack-overlay.dtb
>
>
> Thanks in advance!
> Paulo Sherring.
>
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