FIX: switch to USB polling

r2axz · Nov 29, 2020 · 1b7a6b0 · 1b7a6b0
1 parent e64fb21
commit 1b7a6b0
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Showing 4 changed files with 4 additions and 5 deletions.
diff --git a/main.c b/main.c
@@ -19,6 +19,6 @@ int main() {
     status_led_init();
     usb_init();
     while (1) {
-        __NOP();
+        usb_poll();
     }
 }
diff --git a/usb.h b/usb.h
@@ -8,5 +8,6 @@
 #define USB_H
 
 void usb_init();
+void usb_poll();
 
 #endif /* USB_H */
diff --git a/usb_io.c b/usb_io.c
@@ -63,8 +63,6 @@ void usb_io_init() {
     USB->DADDR = 0;
     USB->ISTR = 0;
     USB->CNTR = USB_CNTR_RESETM;
-    NVIC_SetPriority(USB_LP_CAN1_RX0_IRQn, SYSTEM_INTERRUTPS_PRIORITY_BASE);
-    NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn);
 }
 
 /* Get Number of RX/TX Bytes Available  */
@@ -211,8 +209,7 @@ static uint8_t usb_transfer_led_timer = 0;
 
 uint16_t istr;
 
-void USB_LP_CAN1_RX0_IRQHandler() {
-    (void)USB_LP_CAN1_RX0_IRQHandler;
+void usb_poll() {
     istr = USB->ISTR;
     if (istr & USB_ISTR_CTR) {
         uint8_t ep_num = USB->ISTR & USB_ISTR_EP_ID;

diff --git a/usb_io.h b/usb_io.h
@@ -12,6 +12,7 @@
 #include <stddef.h>
 #include <stm32f1xx.h>
 #include "circ_buf.h"
+#include "usb.h"
 #include "usb_std.h"
 #include "usb_core.h"