Home Forums Software discussion GPIO: Timeout waiting for hardware interrupt

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  • #1621


    I was trying to use Epoll pacakge for my nodejs app to detect GPIO2_5 (pin #11 rightmost). But I ran into an error after few seconds of starting the nodejs app:

    [ 687.896153] mmc0: Timeout waiting for hardware interrupt.
    [ 687.901399] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
    [ 687.908151] mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000002
    [ 687.914725] mmc0: sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000000
    [ 687.921296] mmc0: sdhci: Argument: 0x018488b8 | Trn mode: 0x00000023
    [ 687.928229] mmc0: sdhci: Present: 0x01f00000 | Host ctl: 0x00000013
    [ 687.935071] mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
    [ 687.941383] mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000807
    [ 687.948313] mmc0: sdhci: Timeout: 0x0000000e | Int stat: 0x00000003
    [ 687.954977] mmc0: sdhci: Int enab: 0x02ff004b | Sig enab: 0x02ff004b
    [ 687.961730] mmc0: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000001
    [ 687.968310] mmc0: sdhci: Caps: 0x25e80099 | Caps_1: 0x0000af77
    [ 687.974794] mmc0: sdhci: Cmd: 0x0000193a | Max curr: 0x00000000
    [ 687.981727] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x00000000
    [ 687.988217] mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000
    [ 687.994791] mmc0: sdhci: Host ctl2: 0x00000000
    [ 687.999565] mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x3b07e208
    [ 688.005959] mmc0: sdhci: ============================================

    I posted an issue to the Epoll repository. But the author redirected my to espressobin forum saying it might not be related to Epoll package: https://github.com/fivdi/epoll/issues/25


    The problem maybe related to MMC. So I tried to use the GPIO’s in the left side of the board (P9). But, from what I can observe, the GPIO’s in the left side makes the board unresponsive and hangs.


    Most of the people do not wait the timeout hardware interrupt as they make the nursing assignment help UK best for getting the highest marks.

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