## hyphop ## ==gpios test examples & utils http://linux-sunxi.org/GPIO E.g for PH18 this would be ( 8 - 1) * 32 + 18 = 224 + 18 = 242 (since 'h' is the 8th letter). ==gpio calculate num by name abcdefghijkl 123456789abc 0123456789ab 11*32 + 03 = 355 POWER BTN 11*32 + 10 = 362 GREN POWER LED PA17 0+17 = 17 RED LED PG06 6*32+06 = 198 PG07 6*32+07 = 199 PG12 6*32+12 = 204 PL02 32*11+2 = 354 ==fex/bin check fex for used gpios and make its free // _used = 0 [spi1] spi_used = 0 spi_cs_bitmap = 1 spi_cs0 = port:PA13<2><1><default><default> spi_sclk = port:PA14<2><default><default><default> spi_mosi = port:PA15<2><default><default><default> spi_miso = port:PA16<2><default><default><default> next section look like not needed [gpio_para] gpio_used = 0 gpio_num = 0 ;gpio_pin_1 = port:PA07<1><default><default><0> ;gpio_pin_2 = port:PA10<1><default><default><0> ;gpio_pin_3 = port:PA06<1><default><default><0> ;gpio_pin_4 = port:PA03<1><default><default><0> ;gpio_pin_5 = port:PA00<1><default><default><0> ;gpio_pin_6 = port:PA01<1><default><default><0> > gpio_exported grep: /sys/class/gpio/gpio*/edge: No such file or directory no any exported gpios > gpio_irq_show 0 watch IRQ gpios handles 0 sec 43: 0 0 0 0 GIC PA 49: 0 0 0 0 GIC PG 77: 0 0 0 0 GIC PL > egpios_test Using GPIO 14 16 198 199 wait have 4 events 1111 wait have 1 events 1101 wait have 1 events 1111 wait have 1 events 1110 wait have 1 events 1111 wait ^C ## make enxport for used gpios before use it in epool again > gpio_irq_show 0 watch IRQ gpios handles 0 sec 6: 2 0 0 0 sunxi_gpio_irq_chip gpiolib 7: 2 0 0 0 sunxi_gpio_irq_chip gpiolib 14: 0 0 0 0 sunxi_gpio_irq_chip gpiolib 43: 0 0 0 0 GIC PA 49: 4 0 0 0 GIC PG 77: 0 0 0 0 GIC PL 160: 0 0 0 0 sunxi_gpio_irq_chip gpiolib > gpio_exported /sys/class/gpio/gpio14/edge:both /sys/class/gpio/gpio16/edge:both /sys/class/gpio/gpio198/edge:both /sys/class/gpio/gpio199/edge:both /sys/class/gpio/gpio14/direction:in /sys/class/gpio/gpio16/direction:in /sys/class/gpio/gpio198/direction:in /sys/class/gpio/gpio199/direction:in /sys/class/gpio/gpio14/value:1 /sys/class/gpio/gpio16/value:1 /sys/class/gpio/gpio198/value:1 /sys/class/gpio/gpio199/value:1 > egpios_test unexport gpio 14 unexport gpio 16 unexport gpio 198 unexport gpio 199 Using GPIO 14 16 198 199 wait have 4 events 1111 wait have 1 events 0111 .... have 2 events 1111 wait have 2 events 1100 .... > gpio_irq_show 0 watch IRQ gpios handles 0 sec 6: 435 0 0 0 sunxi_gpio_irq_chip gpiolib 7: 633 0 0 0 sunxi_gpio_irq_chip gpiolib 14: 331 0 0 0 sunxi_gpio_irq_chip gpiolib 43: 730 0 0 0 GIC PA 49: 897 0 0 0 GIC PG 77: 0 0 0 0 GIC PL 160: 589 0 0 0 sunxi_gpio_irq_chip gpiolib ## make enxport for used gpios before use it in epool again > egpios_clean unexport gpio 14 unexport gpio 16 unexport gpio 198 unexport gpio 199