fix: fix raspberrypi4b uart bugs

libdriver · Oct 13, 2024 · 1217063 · 1217063
1 parent 83a1920
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 1.0.3 (2024-10-13)
+
+## Bug Fixes
+
+- fix raspberrypi4b uart bugs
+
 ## 1.0.2 (2024-08-10)
 
 ## Bug Fixes

diff --git a/project/raspberrypi4b/interface/src/uart.c b/project/raspberrypi4b/interface/src/uart.c
@@ -110,6 +110,14 @@ static uint8_t a_uart_config(int fd, uint32_t baud_rate, uint8_t data_bits, char
             break;
         }
 
+        /* 57600bps */
+        case 57600 :
+        {
+            speed = B57600;
+
+            break;
+        }
+
         /* 115200bps */
         case 115200 :
         {
@@ -312,6 +320,11 @@ uint8_t uart_init(char *name, int *fd, uint32_t baud_rate, uint8_t data_bits, ch
     }
     else
     {
+        /* control no block */
+        int flags = fcntl(*fd, F_GETFL, 0);
+        flags |= O_NONBLOCK;
+        fcntl(*fd, F_SETFL, flags);
+
         /* default settings */
         return a_uart_config(*fd, baud_rate, data_bits, parity, stop_bits);
     }