refactor: 精简R8裸机工程并补强调试链路

2026-03-30 23:28:41 +08:00
parent 0abda47013
commit 3b6f52de63
227 changed files with 952 additions and 255229 deletions
@@ -87,6 +87,7 @@ static err_t low_level_output(struct netif *netif, struct pbuf *p)
 {
    struct pbuf *q;
    uint32_t primask;
+    uint32_t start_tick;

    LWIP_UNUSED_ARG(netif);
    primask = ethernetif_lock();
@@ -95,11 +96,20 @@ static err_t low_level_output(struct netif *netif, struct pbuf *p)
    pbuf_remove_header(p, ETH_PAD_SIZE);
 #endif

-    for (q = p; q != NULL; q = q->next) {
-        ch390_write_mem(q->payload, q->len);
+    start_tick = HAL_GetTick();
+    while (ch390_read_reg(CH390_TCR) & TCR_TXREQ) {
+        if ((HAL_GetTick() - start_tick) > 10u) {
+            ethernetif_unlock(primask);
+#if ETH_PAD_SIZE
+            pbuf_add_header(p, ETH_PAD_SIZE);
+#endif
+            LINK_STATS_INC(link.drop);
+            return ERR_TIMEOUT;
+        }
    }

-    while (ch390_read_reg(CH390_TCR) & TCR_TXREQ) {
+    for (q = p; q != NULL; q = q->next) {
+        ch390_write_mem(q->payload, q->len);
    }

    ch390_write_reg(CH390_TXPLL, p->tot_len & 0xFFu);