From 08da3e80b7d93c31ee0b679bcb9d05722abfe182 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Sat, 11 Jan 2020 12:59:02 +0700
Subject: [PATCH] echo to both serial at once
---
examples/device/cdc_dual_ports/src/main.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/examples/device/cdc_dual_ports/src/main.c b/examples/device/cdc_dual_ports/src/main.c
index 87e66b95e..d6e38df85 100644
--- a/examples/device/cdc_dual_ports/src/main.c
+++ b/examples/device/cdc_dual_ports/src/main.c
@@ -50,7 +50,9 @@ int main(void)
return 0;
}
-static void echo_all(uint8_t itf, uint8_t buf[], uint32_t count)
+// echo to either Serial0 or Serial1
+// with Serial0 as all lower case, Serial1 as all upper case
+static void echo_serial_port(uint8_t itf, uint8_t buf[], uint32_t count)
{
for(uint32_t i=0; i<count; i++)
{
@@ -64,7 +66,7 @@ static void echo_all(uint8_t itf, uint8_t buf[], uint32_t count)
// echo back additional ports as upper case
if (islower(buf[i])) buf[i] -= 'a' - 'A';
}
-
+
tud_cdc_n_write_char(itf, buf[i]);
if ( buf[i] == '\r' ) tud_cdc_n_write_char(itf, '\n');
@@ -89,8 +91,9 @@ static void cdc_task(void)
uint32_t count = tud_cdc_n_read(itf, buf, sizeof(buf));
- // echo back to cdc
- echo_all(itf, buf, count);
+ // echo back to both serial ports
+ echo_serial_port(0, buf, count);
+ echo_serial_port(1, buf, count);
}
}
}