wiringPi problem

[wiringPi problem]

On 6/16/2021 at 4:16 PM, Fu-. said:

I wrote and test this dts;

-----

 

/dts-v1/;
/plugin/;
/ {
        compatible = "rockchip,rk3399";

        /* disable spi5 */
        fragment@0 {
                target = <&spi5>;
                __overlay__ {
                        status = "okay";
                        spi5 {
                                status = "disabled";
                        };
                };
        };

        fragment@1 {
                target-path = "/";
                __overlay__ {
                    gpio15 {
                                compatible = "gpio2";
                                pinctrl-names = "default";
                                pinctrl-0 = <&gpio_pins>;
                                gpios = <&gpio2 20 0>;
                                status = "okay";
                        };
                };
        };

        fragment@2 {
                target = <&gpio2>;
                __overlay__ {
                        gpio_pins: gpio_pins {
                                rockchip,pins = <2 20 0 &pcfg_pull_down>;
                        };
                };
        };
};

 

-----

However, this did not work.
It still behaves as if it is latching.

 

You can try to modify Pin define from /boot/config.txt
And run "gpio readall"  to get list
 

[wiringPi problem]

On 6/16/2021 at 12:54 PM, Fu-. said:

Hi,

I want to use wiringPi on Tinker2S.

I'm trying to use GPIO Pin#15 (wiring Pi Pin#3) as a pull-down input, but after a bit of research, it seems to be acting like it's latching. Once the Input goes High, the input does not drop to Low after that.

Is there a good solution?

Hi Fu,

Please refer the following examples
[Image Version]
Tinker_Board_2-Android10-V1.0.0-20210318.img

[Example]
/usr/local/share/gpio_lib_c_rk3399/examples/isr.c
/usr/local/share/gpio_lib_c_rk3399/examples/isr-osc.c

[Step]
1.  cd /usr/local/share/gpio_lib_c_rk3399/examples
2.  sudo make isr
3.  sudo ./isr
4.  GPIO #15 (wiring Pi #3) pulled down <-> up switch
4.  Output:
     Waiting ...  Int on pin 3: Counter:     1
     Waiting ...  Int on pin 3: Counter:     2
     Waiting ...  Int on pin 3: Counter:     3
     …….

[CH341 is not set]

Hi Omirax:

• [Execution environment -- Ubuntu 18.04]

1).  Kernel Code => git clone https://github.com/TinkerEdgeR/debian-kernel.git
2).  GCC  =>  wget http://releases.linaro.org/components/toolchain/binaries/6.3-2017.05/aarch64-linux-gnu/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz
3).  cd debian-kernel
4).  make ARCH=arm64 tinker_edge_r_defconfig CROSS_COMPILE=/media/edger/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu- -j32
5).  make ARCH=arm64 tinker_edge_r.img CROSS_COMPILE=/media/edger/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu- -j32

• [Execution environment -- EdgeR]

6).  compile finish，copy [Ubuntu src] --> debian-kernel/boot.img to EdgeR
7).  dd if=boot.img of=/dev/mmcblk1p4
8).  sudo reboot

Thanks. 

[Getting Started]

Hi 

Can you provide your download URL?
Is Jump removed during burning?
Thank you

[Something wrong with 2.2.2 release?]

Hi
Can you provide burn img, let me try it??  (download Link)
"But I still get the error (warning) from Etcher"  <--  is https://imgur.com/vzanC6G ??

[Something wrong with 2.2.2 release?]

Hi
"balenaEtcher says that it is not a valid image." 
Is as https://imgur.com/vzanC6G ??
Missing Partition Table Issue --> https://forums.balena.io/t/missing-partition-table-issue/175129

[Check]
(1) My Mac load normal. My Etcher version is 1.5.116
(2) My Tinker_Board-Debian-Stretch-v2.2.2-20210326.img size 3.38 GB (3,631,173,632 bytes)
(3) md5sum Tinker_Board-Debian-Stretch-v2.2.2-20210326.img
    07385e98a4c3689d396409fb48508c65  Tinker_Board-Debian-Stretch-v2.2.2-20210326.img
How about you??