WIZnet
first release
Dependencies: mbed
Prerequisite
This Program is an example of how to get analog data with WIZwiki-W7500 board A0 Pin.
To implement this function, you need a Platform board only.
- WIZwiki-W7500 from WIZnet (Platform board)
Hardware Configuration
WIZwiki-W7500ECO Pin map
Initialize an analog pin
Initialize an P30 pin of WIZwiki-W7100ECO platform as an analog pin.
Read analog data from analog pin
Connect an analog device, such as a vriable resistor, to a0 pin. And read analog data.
Software
ADC Pin initialization
main.cpp
AnalogIn ain(P30);
Read analog data and print to serial port
main.cpp
printf("percentage: %3.3f%%\n", ain.read()*100.0f);
Revision 0:800b74bff4d2, committed 2017-04-03
- Comitter:
- bangbh
- Date:
- Mon Apr 03 05:48:04 2017 +0000
- Commit message:
- first commit
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 800b74bff4d2 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Apr 03 05:48:04 2017 +0000
@@ -0,0 +1,42 @@
+/* mbed Example Program
+ * Copyright (c) 2006-2014 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mbed.h"
+
+// Initialize a pins to perform analog input and digital output fucntions
+AnalogIn ain(P30);
+DigitalOut dout(LED1);
+
+int main(void)
+{
+ Serial pc(USBTX,USBRX);
+ pc.baud(115200);
+ while (1) {
+ // test the voltage on the initialized analog pin
+ // and if greater than 0.3 * VCC set the digital pin
+ // to a logic 1 otherwise a logic 0
+ if(ain > 0.3f) {
+ dout = 1;
+ } else {
+ dout = 0;
+ }
+
+ // print the percentage and 16 bit normalized values
+ printf("percentage: %3.3f%%\n", ain.read()*100.0f);
+ printf("normalized: 0x%04X \n", ain.read_u16());
+ wait(0.2f);
+ }
+}
diff -r 000000000000 -r 800b74bff4d2 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Apr 03 05:48:04 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed/builds/856d2700e60b \ No newline at end of file