tamhan Posted November 15, 2016 Share Posted November 15, 2016 Hello Folks, sorry for popping up here with a technical problem first thing - but I have some trouble. I have a circuit where an attenuator is connected to PA19. Sadly, the port seems to have a pull up which stays active even when I use wiringPi to set the port to input - in fact, even if I short the pin to low via my Keithley ammeter, it still shows up as high. Re things which I already tried: I tried to reduce the fex file to look like this: [product] version = "100" machine = "orangepi-lite" [platform] debug_mode = 1 eraseflag = 1 next_work = 2 [target] boot_clock = 1008 storage_type = -1 [key_detect_en] keyen_flag = 0 [fel_key] fel_key_max = 7 fel_key_min = 2 [card_boot] logical_start = 40960 sprite_work_delay = 500 sprite_err_delay = 200 sprite_gpio0 = port:PL10<1><default><default><default> next_work = 3 [box_start_os] used = 1 start_type = 1 irkey_used = 1 pmukey_used = 1 pmukey_num = 3 led_power = 0 led_state = 0 [boot_init_gpio] used = 1 gpio0 = port:PL10<1><default><default><1> gpio1 = port:PG11<1><default><default><1> [recovery_para] used = 1 mode = 2 recovery_key = port:PL04<0><default><default><default> [pm_para] standby_mode = 1 [card0_boot_para] card_ctrl = 0 card_high_speed = 1 card_line = 4 sdc_d1 = port:PF00<2><1><2><default> sdc_d0 = port:PF01<2><1><2><default> sdc_clk = port:PF02<2><1><2><default> sdc_cmd = port:PF03<2><1><2><default> sdc_d3 = port:PF04<2><1><2><default> sdc_d2 = port:PF05<2><1><2><default> [card2_boot_para] card_ctrl = 2 card_high_speed = 1 card_line = 8 sdc_cmd = port:PC06<3><1><2><default> sdc_clk = port:PC05<3><1><2><default> sdc_d0 = port:PC08<3><1><2><default> sdc_d1 = port:PC09<3><1><2><default> sdc_d2 = port:PC10<3><1><2><default> sdc_d3 = port:PC11<3><1><2><default> sdc_d4 = port:PC12<3><1><2><default> sdc_d5 = port:PC13<3><1><2><default> sdc_d6 = port:PC14<3><1><2><default> sdc_d7 = port:PC15<3><1><2><default> sdc_2xmode = 1 sdc_ddrmode = 1 [twi_para] twi_port = 0 twi_scl = port:PA11<2><default><default><default> twi_sda = port:PA12<2><default><default><default> [uart_para] uart_debug_port = 0 uart_debug_tx = port:PA04<2><1><default><default> uart_debug_rx = port:PA05<2><1><default><default> [force_uart_para] force_uart_port = 0 force_uart_tx = port:PF02<3><1><default><default> force_uart_rx = port:PF04<3><1><default><default> [jtag_para] jtag_enable = 0 jtag_ms = port:PA00<3><default><default><default> jtag_ck = port:PA01<3><default><default><default> jtag_do = port:PA02<3><default><default><default> jtag_di = port:PA03<3><default><default><default> [clock] pll_video = 297 pll_ve = 402 pll_periph0 = 600 pll_gpu = 576 pll_periph1 = 600 pll_de = 864 [dram_para] dram_clk = 624 dram_type = 3 dram_zq = 0x3b3bfb dram_odt_en = 1 dram_para1 = 283377664 dram_para2 = 0 dram_mr0 = 6208 dram_mr1 = 64 dram_mr2 = 24 dram_mr3 = 2 dram_tpr0 = 0x48a192 dram_tpr1 = 0x1c2418d dram_tpr2 = 0x76051 dram_tpr3 = 0x0 dram_tpr4 = 0x0 dram_tpr5 = 0x0 dram_tpr6 = 0x64 dram_tpr7 = 0x0 dram_tpr8 = 0x0 dram_tpr9 = 0x0 dram_tpr10 = 0x0 dram_tpr11 = 0x6aaa0000 dram_tpr12 = 0x7979 dram_tpr13 = 0x800800 [wakeup_src_para] cpu_en = 0 cpu_freq = 48 pll_ratio = 273 dram_selfresh_en = 1 dram_freq = 36 wakeup_src0 = wakeup_src_wl = port:PG10<4><default><default><0> wakeup_src_bt = port:PL03<6><default><default><0> [uart0] uart_used = 1 uart_port = 0 uart_type = 2 uart_tx = port:PA04<2><1><default><default> uart_rx = port:PA05<2><1><default><default> [uart1] uart_used = 0 uart_port = 1 uart_type = 4 uart_tx = port:PG06<2><1><default><default> uart_rx = port:PG07<2><1><default><default> uart_rts = port:PG08<2><1><default><default> uart_cts = port:PG09<2><1><default><default> [uart2] uart_used = 0 uart_port = 2 uart_type = 4 uart_tx = port:PA00<2><1><default><default> uart_rx = port:PA01<2><1><default><default> uart_rts = port:PA02<2><1><default><default> uart_cts = port:PA03<2><1><default><default> [uart3] uart_used = 0 uart_port = 3 uart_type = 4 uart_tx = port:PA13<3><1><default><default> uart_rx = port:PA14<3><1><default><default> uart_rts = port:PA15<3><1><default><default> uart_cts = port:PA16<3><1><default><default> [spi0] spi_used = 0 spi_cs_bitmap = 1 spi_mosi = port:PC00<3><default><default><default> spi_miso = port:PC01<3><default><default><default> spi_sclk = port:PC02<3><default><default><default> spi_cs0 = port:PC03<3><1><default><default> [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> [spi_devices] spi_dev_num = 1 [spi_board0] modalias = "spidev" max_speed_hz = 33000000 bus_num = 0 chip_select = 0 mode = 0 full_duplex = 1 manual_cs = 0 [gpio_para] gpio_used = 1 gpio_num = 20 gpio_pin_1 = port:PA06<1><default><default><0> gpio_pin_2 = port:PA13<1><default><default><0> gpio_pin_3 = port:PA14<1><default><default><0> gpio_pin_4 = port:PA01<1><default><default><0> gpio_pin_5 = port:PD14<1><default><default><0> gpio_pin_6 = port:PA00<1><default><default><0> gpio_pin_7 = port:PA03<1><default><default><0> gpio_pin_8 = port:PC04<1><default><default><0> gpio_pin_9 = port:PC07<1><default><default><0> gpio_pin_10 = port:PA02<1><default><default><0> gpio_pin_11 = port:PA21<1><default><default><0> gpio_pin_12 = port:PA07<1><default><default><0> gpio_pin_13 = port:PA08<1><default><default><0> gpio_pin_14 = port:PG08<1><default><default><0> gpio_pin_15 = port:PA09<1><default><default><0> gpio_pin_16 = port:PA10<1><default><default><0> gpio_pin_17 = port:PG09<1><default><default><0> gpio_pin_18 = port:PG06<1><default><default><0> gpio_pin_19 = port:PA19<0><0><0><0> gpio_pin_20 = port:PG07<1><default><default><0> [leds_para] leds_used = 1 green_led = port:PL10<1><default><default><1> green_led_active_low = 0 red_led = port:PA15<1><default><default><0> red_led_active_low = 0 [ths_para] ths_used = 1 ths_trip1_count = 6 ths_trip1_0 = 75 ths_trip1_1 = 80 ths_trip1_2 = 85 ths_trip1_3 = 90 ths_trip1_4 = 95 ths_trip1_5 = 105 ths_trip1_6 = 0 ths_trip1_7 = 0 ths_trip1_0_min = 0 ths_trip1_0_max = 1 ths_trip1_1_min = 1 ths_trip1_1_max = 2 ths_trip1_2_min = 2 ths_trip1_2_max = 3 ths_trip1_3_min = 3 ths_trip1_3_max = 4 ths_trip1_4_min = 4 ths_trip1_4_max = 5 ths_trip1_5_min = 5 ths_trip1_5_max = 7 ths_trip1_6_min = 0 ths_trip1_6_max = 0 ths_trip2_count = 1 ths_trip2_0 = 105 [cooler_table] cooler_count = 8 cooler0 = "1200000 4 4294967295 0" cooler1 = "912000 4 4294967295 0" cooler2 = "768000 4 4294967295 0" cooler3 = "648000 4 4294967295 0" cooler4 = "480000 4 4294967295 0" cooler5 = "480000 3 4294967295 0" cooler6 = "480000 2 4294967295 0" cooler7 = "480000 1 4294967295 0" [nand0_para] nand_support_2ch = 0 nand0_used = 0 nand0_we = port:PC00<2><default><default><default> nand0_ale = port:PC01<2><default><default><default> nand0_cle = port:PC02<2><default><default><default> nand0_ce1 = port:PC03<2><default><default><default> nand0_ce0 = port:PC04<2><default><default><default> nand0_nre = port:PC05<2><default><default><default> nand0_rb0 = port:PC06<2><default><default><default> nand0_rb1 = port:PC07<2><default><default><default> nand0_d0 = port:PC08<2><default><default><default> nand0_d1 = port:PC09<2><default><default><default> nand0_d2 = port:PC10<2><default><default><default> nand0_d3 = port:PC11<2><default><default><default> nand0_d4 = port:PC12<2><default><default><default> nand0_d5 = port:PC13<2><default><default><default> nand0_d6 = port:PC14<2><default><default><default> nand0_d7 = port:PC15<2><default><default><default> nand0_ndqs = port:PC16<2><default><default><default> [boot_disp] advert_disp = 0 auto_hpd = 1 output_type = 4 hdmi_channel = 0 hdmi_mode = 4 cvbs_channel = 1 cvbs_mode = 11 output_full = 1 hdmi_mode_check = 1 [disp_init] disp_init_enable = 1 disp_mode = 0 screen0_output_type = 3 screen0_output_mode = 5 screen1_output_type = 3 screen1_output_mode = 5 fb0_format = 0 fb0_width = 0 fb0_height = 0 fb1_format = 0 fb1_width = 0 fb1_height = 0 [hdmi_para] hdmi_used = 1 hdmi_power = "vcc-hdmi-18" [tv_para] tv_used = 0 tv_dac_used = 1 tv_dac_src0 = 0 [pwm0_para] pwm_used = 0 pwm_positive = port:PA05<3><0><default><default> [gmac0] gmac_used = 0 gmac_power1 = [csi0] vip_used = 1 vip_mode = 0 vip_dev_qty = 1 vip_define_sensor_list = 0 vip_csi_pck = port:PE00<2><default><default><default> vip_csi_mck = port:PE01<2><default><default><default> vip_csi_hsync = port:PE02<2><default><default><default> vip_csi_vsync = port:PE03<2><default><default><default> vip_csi_d0 = port:PE04<2><default><default><default> vip_csi_d1 = port:PE05<2><default><default><default> vip_csi_d2 = port:PE06<2><default><default><default> vip_csi_d3 = port:PE07<2><default><default><default> vip_csi_d4 = port:PE08<2><default><default><default> vip_csi_d5 = port:PE09<2><default><default><default> vip_csi_d6 = port:PE10<2><default><default><default> vip_csi_d7 = port:PE11<2><default><default><default> vip_csi_sck = port:PE12<2><default><default><default> vip_csi_sda = port:PE13<2><default><default><default> vip_dev0_mname = "gc2035" vip_dev0_pos = "front" vip_dev0_lane = 1 vip_dev0_twi_id = 2 vip_dev0_twi_addr = 120 vip_dev0_isp_used = 0 vip_dev0_fmt = 0 vip_dev0_stby_mode = 0 vip_dev0_vflip = 1 vip_dev0_hflip = 1 vip_dev0_iovdd = "" vip_dev0_iovdd_vol = 2800000 vip_dev0_avdd = "" vip_dev0_avdd_vol = 2800000 vip_dev0_dvdd = "" vip_dev0_dvdd_vol = 1800000 vip_dev0_afvdd = "" vip_dev0_afvdd_vol = 2800000 vip_dev0_power_en = port:PA17<1><default><default><1> vip_dev0_reset = port:PE14<1><default><default><1> vip_dev0_pwdn = port:PE15<1><default><default><0> vip_dev0_flash_en = vip_dev0_flash_mode = vip_dev0_af_pwdn = vip_dev0_act_used = 0 vip_dev0_act_name = "ad5820_act" vip_dev0_act_slave = 24 vip_dev1_mname = "" vip_dev1_pos = "rear" vip_dev1_lane = 1 vip_dev1_twi_id = 0 vip_dev1_twi_addr = vip_dev1_isp_used = 0 vip_dev1_fmt = 1 vip_dev1_stby_mode = 0 vip_dev1_vflip = 0 vip_dev1_hflip = 0 vip_dev1_iovdd = "" vip_dev1_iovdd_vol = 2800000 vip_dev1_avdd = "" vip_dev1_avdd_vol = 2800000 vip_dev1_dvdd = "" vip_dev1_dvdd_vol = 1500000 vip_dev1_afvdd = "" vip_dev1_afvdd_vol = 2800000 vip_dev1_power_en = vip_dev1_reset = vip_dev1_pwdn = vip_dev1_flash_en = vip_dev1_flash_mode = vip_dev1_af_pwdn = [tvout_para] tvout_used = tvout_channel_num = tv_en = [tvin_para] tvin_used = tvin_channel_num = [di_para] di_used = 1 [mmc0_para] sdc_used = 1 sdc_detmode = 3 sdc_buswidth = 4 sdc_clk = port:PF02<2><1><2><default> sdc_cmd = port:PF03<2><1><2><default> sdc_d0 = port:PF01<2><1><2><default> sdc_d1 = port:PF00<2><1><2><default> sdc_d2 = port:PF05<2><1><2><default> sdc_d3 = port:PF04<2><1><2><default> sdc_det = port:PF06<0><1><2><default> sdc_use_wp = 0 sdc_wp = sdc_isio = 0 sdc_regulator = "none" sdc_power_supply = "none" [mmc1_para] sdc_used = 1 sdc_detmode = 4 sdc_buswidth = 4 sdc_clk = port:PG00<2><1><3><default> sdc_cmd = port:PG01<2><1><3><default> sdc_d0 = port:PG02<2><1><3><default> sdc_d1 = port:PG03<2><1><3><default> sdc_d2 = port:PG04<2><1><3><default> sdc_d3 = port:PG05<2><1><3><default> sdc_det = sdc_use_wp = 0 sdc_wp = sdc_isio = 1 sdc_regulator = "none" sdc_power_supply = "none" sdc_2xmode = 1 sdc_ddrmode = 1 [mmc2_para] sdc_used = 0 sdc_detmode = 3 sdc_buswidth = 8 sdc_clk = port:PC05<3><1><2><default> sdc_cmd = port:PC06<3><1><2><default> sdc_d0 = port:PC08<3><1><2><default> sdc_d1 = port:PC09<3><1><2><default> sdc_d2 = port:PC10<3><1><2><default> sdc_d3 = port:PC11<3><1><2><default> sdc_d4 = port:PC12<3><1><2><default> sdc_d5 = port:PC13<3><1><2><default> sdc_d6 = port:PC14<3><1><2><default> sdc_d7 = port:PC15<3><1><2><default> emmc_rst = port:PC16<3><1><2><default> sdc_det = sdc_use_wp = 0 sdc_wp = sdc_isio = 0 sdc_regulator = "none" sdc_power_supply = "none" sdc_2xmode = 1 sdc_ddrmode = 1 [smc_para] smc_used = 0 smc_rst = port:PA09<2><default><default><default> smc_vppen = port:PA20<3><default><default><default> smc_vppp = port:PA21<3><default><default><default> smc_det = port:PA10<2><default><default><default> smc_vccen = port:PA06<2><default><default><default> smc_sck = port:PA07<2><default><default><default> smc_sda = port:PA08<2><default><default><default> [usbc0] usb_used = 1 usb_port_type = 2 usb_detect_type = 0 usb_id_gpio = port:PG12<0><1><default><default> usb_det_vbus_gpio = port:PG12<0><1><default><default> usb_drv_vbus_gpio = port:PL02<1><0><default><0> usb_host_init_state = 1 usb_restrict_gpio = usb_restric_flag = 0 usb_restric_voltage = 3550000 usb_restric_capacity = 5 usb_regulator_io = "nocare" usb_regulator_vol = 0 usb_not_suspend = 0 [usbc1] usb_used = 1 usb_drv_vbus_gpio = usb_restrict_gpio = usb_host_init_state = 1 usb_restric_flag = 0 usb_regulator_io = "nocare" usb_regulator_vol = 0 usb_not_suspend = 0 [usbc2] usb_used = 1 usb_drv_vbus_gpio = usb_restrict_gpio = usb_host_init_state = 1 usb_restric_flag = 0 usb_regulator_io = "nocare" usb_regulator_vol = 0 usb_not_suspend = 0 [usbc3] usb_used = 1 usb_drv_vbus_gpio = usb_restrict_gpio = usb_host_init_state = 1 usb_restric_flag = 0 usb_regulator_io = "nocare" usb_regulator_vol = 0 usb_not_suspend = 0 [usb_feature] vendor_id = 6353 mass_storage_id = 1 adb_id = 2 manufacturer_name = "USB Developer" product_name = "Android" serial_number = "20080411" [msc_feature] vendor_name = "USB 2.0" product_name = "USB Flash Driver" release = 100 luns = 3 [serial_feature] serial_unique = 0 [module_para] module_num = 7 module_power0 = "vcc-wifi-33" module_power0_vol = 0 module_power1 = module_power1_vol = module_power2 = module_power2_vol = module_power3 = module_power3_vol = chip_en = lpo_use_apclk = [wifi_para] wifi_used = 1 wifi_sdc_id = 1 wifi_usbc_id = 2 wifi_usbc_type = 1 wl_reg_on = port:PL07<1><default><default><0> wl_host_wake = port:PG10<0><default><default><0> wl_host_wake_invert = 0 [bt_para] bt_used = 0 bt_uart_id = 1 bt_rst_n = bt_wake = bt_host_wake = bt_host_wake_invert = 0 [audio0] audio_used = 1 lineout_vol = 31 cap_vol = 5 audio_hp_ldo = "none" adcagc_used = 0 adcdrc_used = 0 dacdrc_used = 0 adchpf_used = 0 dachpf_used = 0 audio_pa_ctrl = port:PA16<1><default><default><0> [spdif0] spdif_used = 0 spdif_dout = port:PA17<2><1><default><default> [audiohub] hub_used = 0 codec_used = 1 spdif_used = 1 hdmi_used = 1 [s_cir0] ir_used = 0 ir_rx = port:PL11<2><1><default><default> ir_power_key_code0 = 87 ir_addr_code0 = 40704 ir_power_key_code1 = 26 ir_addr_code1 = 64260 ir_power_key_code2 = 20 ir_addr_code2 = 32640 ir_power_key_code3 = 21 ir_addr_code3 = 32640 ir_power_key_code4 = 11 ir_addr_code4 = 63240 ir_power_key_code5 = 3 ir_addr_code5 = 239 ir_power_key_code6 = 159 ir_addr_code6 = 19635 ir_power_key_code7 = 10 ir_addr_code7 = 30536 ir_power_key_code8 = 69 ir_addr_code8 = 48386 ir_power_key_code9 = 77 ir_addr_code9 = 56865 ir_power_key_code10 = 24 ir_addr_code10 = 65025 ir_power_key_code11 = 87 ir_addr_code11 = 65280 ir_power_key_code12 = 77 ir_addr_code12 = 65344 [cir] ir_used = 1 ir_tx = port:PH07<2><default><default><default> [dvfs_table] pmuic_type = 1 pmu_gpio0 = port:PL06<1><1><2><1> pmu_level0 = 11300 pmu_level1 = 1100 max_freq = 1200000000 min_freq = 480000000 LV_count = 5 LV1_freq = 1200000000 LV1_volt = 1300 LV2_freq = 1008000000 LV2_volt = 1300 LV3_freq = 912000000 LV3_volt = 1100 LV4_freq = 648000000 LV4_volt = 1100 LV5_freq = 480000000 LV5_volt = 1100 [gpu_dvfs_table] G_LV_count = 3 G_LV0_freq = 312000000 G_LV0_volt = 1200000 G_LV1_freq = 384000000 G_LV1_volt = 1200000 G_LV2_freq = 456000000 G_LV2_volt = 1200000 [Vdevice] Vdevice_used = 0 Vdevice_0 = port:PH10<5><1><2><default> Vdevice_1 = port:PH11<5><1><2><default> [s_uart0] s_uart_used = 0 s_uart_tx = port:PL02<2><default><default><default> s_uart_rx = port:PL03<2><default><default><default> [s_rsb0] s_rsb_used = 1 s_rsb_sck = port:PL00<2><1><2><default> s_rsb_sda = port:PL01<2><1><2><default> [s_jtag0] s_jtag_used = 0 s_jtag_tms = port:PL04<2><1><2><default> s_jtag_tck = port:PL05<2><1><2><default> s_jtag_tdo = port:PL06<2><1><2><default> s_jtag_tdi = port:PL07<2><1><2><default> [s_powchk] s_powchk_used = -2147483648 s_power_reg = 0 s_system_power = 50 [sim0] scr_used = 0 scr_vccen = port:PA06<2><default><default><default> scr_slk = port:PA07<2><default><default><default> scr_sda = port:PA08<2><default><default><default> scr_rst = port:PA09<2><default><default><default> scr_det = port:PA10<2><default><default><default> [ts0] tsc_used = 0 tsc_clk = port:PE00<3><default><default><default> tsc_err = port:PE01<3><default><default><default> tsc_sync = port:PE02<3><default><default><default> tsc_dvld = port:PE03<3><default><default><default> tsc_d0 = port:PE04<3><default><default><default> tsc_d1 = port:PE05<3><default><default><default> tsc_d2 = port:PE06<3><default><default><default> tsc_d3 = port:PE07<3><default><default><default> tsc_d4 = port:PE08<3><default><default><default> tsc_d5 = port:PE09<3><default><default><default> tsc_d6 = port:PE10<3><default><default><default> tsc_d7 = port:PE11<3><default><default><default> [gpio_power_key] key_used = 1 key_io = port:PL03<6><default><default><0> [key_para] key_used = 0 key_cnt = 5 key1_vol = 222 key2_vol = 444 key3_vol = 666 key4_vol = 857 key5_vol = 2000 [d7s_para] d7s_used = 0 din_gpio = port:PD00<1><default><default><1> clk_gpio = port:PD01<1><default><default><1> stb_gpio = port:PD02<1><default><default><1> [mali_para] mali_used = 1 mali_clkdiv = 1 mali_extreme_freq = 600 mali_extreme_vol = 1400 [w1_para] w1_used = 1 gpio = 20 [corekeeper] corekeeper_enabled = 1 Anyone have any success using PA19 as a GPIO input? 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