Team,
we are having trouble connecting the beagle-bone to RTTT. we suspect the IRQ_WL since it it goes from 1 to 0 after 30 seconds.
my understanding is this IRQ_WL needs to be 1 in order to be in debug mode vs operational mode to enable the WLAN debug UART. probing the UART lines we can see data coming from RTTT but nothing coming out from the module. we have a 10kohm pull-up on IRQ_WL. we disconnected all 6 SDIO lines to prevent firmware download from host. but we cannot get it to work.
conditions:
UART_DBG_BT = 1.8V
AUD_OUT_BT = 0V
IRQ_WL = ~1.6V and then after ~30 seconds goes to 0V.
why is IRQ_WL going low after 30 seconds? is WLAN_IRQ and IRQ_WL the same?
Thanks,
Kevin