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Add pullup to USB interrupt line

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- A pullup on the INT pin is required when the pin is level-active
This commit is contained in:
Marcio Teixeira 2018-10-23 14:12:42 -06:00 committed by Scott Lahteine
parent a07ac6312f
commit 1a00d1bdaf
1 changed files with 2 additions and 2 deletions
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4
Marlin/src/sd/usb_flashdrive/usb_host.cpp
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@ -109,8 +109,8 @@ bool MAX3421e::reset() {
bool MAX3421e::start() { bool MAX3421e::start() {
// Initialize pins and SPI bus // Initialize pins and SPI bus
SET_OUTPUT(SDSS); SET_OUTPUT(USB_CS_PIN);
SET_INPUT(USB_INTR_PIN); SET_INPUT_PULLUP(USB_INTR_PIN);
ncs(); ncs();
spiBegin(); spiBegin();