Revision 0:b7c05aca6d5f, committed 2019-10-30

Comitter:

ghsalazar

Date:

Wed Oct 30 17:32:19 2019 +0000

Commit message:

Initial commit

Changed in this revision

diff -r 000000000000 -r b7c05aca6d5f LICENSE-apache-2.0.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE-apache-2.0.txt	Wed Oct 30 17:32:19 2019 +0000
@@ -0,0 +1,203 @@
+
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diff -r 000000000000 -r b7c05aca6d5f LICENSE.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE.md	Wed Oct 30 17:32:19 2019 +0000
@@ -0,0 +1,3 @@
+Unless specifically indicated otherwise in a file, files are licensed
+under the Apache 2.0 license, as can be found in:
+LICENSE-apache-2.0.txt

diff -r 000000000000 -r b7c05aca6d5f main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Oct 30 17:32:19 2019 +0000
@@ -0,0 +1,63 @@
+/* Sampling example for My Digital Signal Controller library
+ * Copyright (c) 2019, Gastón H. SALAZAR-SILVA
+ * SPDX-License-Identifier: Apache-2.0
+ * 
+ * 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.
+ */
+
+/*
+ *  This program is an example of how to sample an analog input.
+ *
+ *  # Interface #
+ *
+ *  The connections are for a Nucleo f446re board. PC_1 and PA_4 should be physically connected.
+ *      PC_1 (A4) <---> PA_4 (A2)
+ */
+
+#include "mbed.h"
+#include "mydsc_ring_buffer.h"
+
+AnalogOut       analog_out_1(PA_4); ///< Generated signal by the own board. Assigned to the pin PA_4.
+AnalogIn        analog_in(PC_1);    ///< Input to be sampled, assigned to the pin PC_1. PC_1 and PA_4 should be physically connected.
+AnalogOut       analog_out_2(PA_5); ///< Analog output 2, connected to the pin PA_5, which is also connected to USER_LED.
+
+const double    PI      =   3.14159265358979323846;
+const uint32_t  SIZE    =   1024;                   ///< Buffer size - 1
+const float     H       =   1.0/(SIZE);          ///< Sampling period
+const int32_t   PHI     =   -256;                   ///< Phase shift
+
+mydsc_ring_buffer_t rb;         ///< circular queue or ring buffer.
+Ticker              ticker;
+
+void ticker_isr() {
+    static unsigned int    k    =   0;
+
+    analog_out_1 = ( 1.0 + sin(2*PI*k*H)) / 2.0;
+    mydsc_ring_buffer_push(&rb, analog_in);
+    analog_out_2 = *mydsc_ring_buffer_sample(&rb, PHI);
+    k++;
+}   
+
+int main() {
+    // Setup
+    Serial tty(USBTX, USBRX);
+    
+    mydsc_ring_buffer_init(&rb, SIZE);
+    ticker.attach(&ticker_isr, H);
+    tty.baud(115200);
+    
+    while(1) { 
+        // Loop
+        tty.printf("%f\t%f\n", (*mydsc_ring_buffer_sample(&rb, 0)),(*mydsc_ring_buffer_sample(&rb, PHI)));
+    }
+}
+

diff -r 000000000000 -r b7c05aca6d5f mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Oct 30 17:32:19 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file

diff -r 000000000000 -r b7c05aca6d5f mydsc.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mydsc.lib	Wed Oct 30 17:32:19 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/ghsalazar/code/mydsc/#71de2d089e41