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usb_cdcacm: fix U_ID decoding

This commit is contained in:
King Kévin 2020-03-15 14:02:55 +01:00
parent e9f7e574ba
commit 3cec6dfb79
1 changed files with 1 additions and 1 deletions
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2
lib/usb_cdcacm.c
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@ -444,7 +444,7 @@ static void usb_cdcacm_set_config(usbd_device *usbd_dev, uint16_t wValue)
void usb_cdcacm_setup(void)
{
snprintf(usb_serial, LENGTH(usb_serial), "%08x%08x%08x", DESIG_UNIQUE_ID0, DESIG_UNIQUE_ID1, DESIG_UNIQUE_ID2); // set actual device ID as serial
snprintf(usb_serial, LENGTH(usb_serial), "%08x%08x%04x%04x", DESIG_UNIQUE_ID2, DESIG_UNIQUE_ID1, DESIG_UNIQUE_ID0 & 0xffff, DESIG_UNIQUE_ID0 >> 16); // set actual device ID as serial
// initialize USB
rcc_periph_reset_pulse(RST_USB); // reset USB peripheral