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How to add MRAA library in host PC for C Programming on i.MX 6UL
In RB-i.MX 6UL
How to add MRAA library in host PC for C Programming on i.MX 6UL
In RB-i.MX 6UL
Arbaaz Khan
Aug 13, 2020
fahad@mqs189:~$ cd /opt/phytec-yogurt/BSP-Yocto-i.MX6UL-PD19.1.0/ fahad@mqs189:/opt/phytec-yogurt/BSP-Yocto-i.MX6UL-PD19.1.0$ . environment-setup-cortexa7hf-neon-vfpv4-phytec-linux-gnueabi fahad@mqs189:/opt/phytec-yogurt/BSP-Yocto-i.MX6UL-PD19.1.0$ echo $ARCH arm fahad@mqs189:/opt/phytec-yogurt/BSP-Yocto-i.MX6UL-PD19.1.0$ cd fahad@mqs189:~$ ls button_gpio.c examples.desktop mraa snap Desktop excl Music techveda Documents LinuxPro_New perl5 Downloads linux-source-4.15.0 Pictures Templates EXAMPLE minicom.log Public Videos fahad@mqs189:~$ echo $ARCH arm fahad@mqs189:~$ vi button_gpio.c fahad@mqs189:~$ $CC button_gpio.c -o button_gpio button_gpio.c:1:10: fatal error: mraa.h: No such file or directory #include <mraa.h> ^~~~~~~~ compilation terminated. fahad@mqs189:~$ button_gpio.c program: #include <mraa.h> #include <inttypes.h> #define LED_PIN 49 /**< The pin where the LED is connected */ #define BTN_PIN 52 /**< Button is connected to this pin */ int main(void) { mraa_gpio_context ledPin; /* Will be used to represnt the LED pin */ mraa_gpio_context btnPin; /* Will be used to represnt the button pin */ uint32_t status; /* Used to toggle the LED */ uint32_t btnState; /* Used to capture the state of the button */ mraa_init(); ledPin = mraa_gpio_init(LED_PIN); btnPin = mraa_gpio_init(BTN_PIN); mraa_gpio_dir(ledPin, MRAA_GPIO_OUT); mraa_gpio_dir(btnPin, MRAA_GPIO_IN); while(1) { status = mraa_gpio_read(btnPin); printf("STATUS = %d..\n\n",status); if(status == 1) { mraa_gpio_write(ledPin, 1); printf("LED ON \n"); } else { printf("LED OFF \n"); mraa_gpio_write(ledPin, 0); // active low 0 is on the led } sleep(2); } return 0; }
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Where to get MRAA Mapped Pins for i.MX 6UL?
In RB-i.MX 6UL
Arbaaz Khan
Aug 03, 2020
Please share the pins details ASAP
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