Avoid optimization of CDC buffer size

bbogush · bbogush · commit 436d79c9ee21 · 2019-09-01T20:19:11.000+03:00
diff --git a/firmware/usb_cdc/usb_endp.c b/firmware/usb_cdc/usb_endp.c
@@ -78,7 +78,7 @@ typedef struct
 } packet_t;
 
 static packet_t circ_buf[CIRC_BUF_SIZE];
-static uint8_t head, size, tail = CIRC_BUF_SIZE - 1;
+static volatile uint8_t head, size, tail = CIRC_BUF_SIZE - 1;
 
 uint32_t USB_Data_Peek(uint8_t **data)
 {

Original file line number	Diff line number	Diff line change
`@@ -78,7 +78,7 @@ typedef struct`
`78`	`78`	`} packet_t;`
`79`	`79`
`80`	`80`	`static packet_t circ_buf[CIRC_BUF_SIZE];`
`81`		`-static uint8_t head, size, tail = CIRC_BUF_SIZE - 1;`
	`81`	`+static volatile uint8_t head, size, tail = CIRC_BUF_SIZE - 1;`
`82`	`82`
`83`	`83`	`uint32_t USB_Data_Peek(uint8_t **data)`
`84`	`84`	`{`