[riot-notifications] [RIOT-OS/RIOT] sam0_common: Add USB peripheral driver (#10915)

Dylan Laduranty notifications at github.com
Mon Mar 25 21:31:42 CET 2019


dylad commented on this pull request.



> +}
+
+static bool _syncbusy_swrst(sam0_common_usb_t *dev)
+{
+    return dev->config->device->SYNCBUSY.bit.SWRST;
+}
+
+static inline void _poweron(void)
+{
+#if defined(CPU_FAM_SAMD21)
+    PM->AHBMASK.reg |= PM_AHBMASK_USB;
+    PM->APBBMASK.reg |= PM_APBBMASK_USB;
+    GCLK->CLKCTRL.reg = (uint32_t)(GCLK_CLKCTRL_CLKEN |
+                                   GCLK_CLKCTRL_GEN_GCLK0 |
+                                   (GCLK_CLKCTRL_ID(USB_GCLK_ID)));
+#elif defined(CPU_FAM_SAML21) || defined(CPU_FAM_SAMR30)

You can go ahead, this is the way to go.

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