increase default baud rate to 115200, add option to set baudrate

timvideos · Jan 8, 2020 · 7548a73 · 7548a73
1 parent 0afcd90
commit 7548a73
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Showing 6 changed files with 12 additions and 2 deletions.
diff --git a/examples/serial-cdc-loopback/Makefile b/examples/serial-cdc-loopback/Makefile
@@ -5,6 +5,9 @@ FLAGS     = -I../../common -DDEBUG
 SOURCES   = main descriptors ../../common/cdc ../../common/uart
 
 BITBANG ?= 1
+BAUDRATE ?= 115200
+
+FLAGS += -DBAUDRATE=$(BAUDRATE)
 
 ifeq ($(BITBANG), 1)
 FLAGS += -DUART_SOFTWARE_BITBANG=1 \

diff --git a/examples/serial-cdc-loopback/README.md b/examples/serial-cdc-loopback/README.md
@@ -9,6 +9,8 @@ To run the example the pins used for UART TX and RX must be externally connected
 Alternatively, any data sent to UART RX pin will be passed over CDC-ACM, and any
 data sent over USB will be sent over UART TX pin with some data modifications.
 
+UART baudrate can be set using `BAUDRATE` *Makefile* variable.
+
 ## UART Configuration
 
 See the README for serial-loopback example. `../serial-loopback/README.md`.
diff --git a/examples/serial-cdc-loopback/main.c b/examples/serial-cdc-loopback/main.c
@@ -48,7 +48,7 @@ int main() {
   SYNCDELAY; FIFORESET = 0;
 
   // configure and start bitbang uart
-  uart_init(9600, UART_MODE_RX_TX);
+  uart_init(BAUDRATE, UART_MODE_RX_TX);
 
   // Re-enumerate, to make sure our descriptors are picked up correctly.
   usb_init(/*disconnect=*/true);

diff --git a/examples/serial-loopback/Makefile b/examples/serial-loopback/Makefile
@@ -5,6 +5,9 @@ FLAGS     = -I../../common -DDEBUG
 SOURCES   = main descriptors ../../common/cdc ../../common/uart
 
 BITBANG ?= 1
+BAUDRATE ?= 115200
+
+FLAGS += -DBAUDRATE=$(BAUDRATE)
 
 ifeq ($(BITBANG), 1)
 FLAGS += -DUART_SOFTWARE_BITBANG=1 \

diff --git a/examples/serial-loopback/README.md b/examples/serial-loopback/README.md
@@ -11,6 +11,8 @@ The *Makefile* provided configures proper compilation flags.
 By default bitbanged UART implementation is used.
 To use hardware UART, run with `make` with `BITBANG=0`.
 
+UART baudrate can be set using `BAUDRATE` *Makefile* variable.
+
 ## UART Configuration
 
 UART implementation uses two statically allocated queues to store data,

diff --git a/examples/serial-loopback/main.c b/examples/serial-loopback/main.c
@@ -48,7 +48,7 @@ int main() {
   SYNCDELAY; FIFORESET = 0;
 
   // configure and start bitbang uart
-  uart_init(9600, UART_MODE_RX_TX);
+  uart_init(BAUDRATE, UART_MODE_RX_TX);
 
   // Re-enumerate, to make sure our descriptors are picked up correctly.
   usb_init(/*disconnect=*/true);