Ben Walker / Mbed OS Matrix_Test_3

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Dependencies:   SoftPWM

Files at this revision

API Documentation at this revision

Revision 0:a4b52dc3fb96, committed 2018-03-07

Comitter:
bwalker001
Date:
Wed Mar 07 10:07:30 2018 +0000
Commit message:
Working

Changed in this revision

.gitignore Show annotated file Show diff for this revision Revisions of this file
README.md Show annotated file Show diff for this revision Revisions of this file
SoftPWM.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-os.lib Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Wed Mar 07 10:07:30 2018 +0000
@@ -0,0 +1,4 @@
+.build
+.mbed
+projectfiles
+*.py*

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Wed Mar 07 10:07:30 2018 +0000
@@ -0,0 +1,57 @@
+# Getting started with Blinky on mbed OS
+
+This guide reviews the steps required to get Blinky working on an mbed OS platform.
+
+Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+
+## Import the example application
+
+From the command-line, import the example:
+
+```
+mbed import mbed-os-example-blinky
+cd mbed-os-example-blinky
+```
+
+### Now compile
+
+Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
+
+```
+mbed compile -m K64F -t ARM
+```
+
+Your PC may take a few minutes to compile your code. At the end, you see the following result:
+
+```
+[snip]
++----------------------------+-------+-------+------+
+| Module                     | .text | .data | .bss |
++----------------------------+-------+-------+------+
+| Misc                       | 13939 |    24 | 1372 |
+| core/hal                   | 16993 |    96 |  296 |
+| core/rtos                  |  7384 |    92 | 4204 |
+| features/FEATURE_IPV4      |    80 |     0 |  176 |
+| frameworks/greentea-client |  1830 |    60 |   44 |
+| frameworks/utest           |  2392 |   512 |  292 |
+| Subtotals                  | 42618 |   784 | 6384 |
++----------------------------+-------+-------+------+
+Allocated Heap: unknown
+Allocated Stack: unknown
+Total Static RAM memory (data + bss): 7168 bytes
+Total RAM memory (data + bss + heap + stack): 7168 bytes
+Total Flash memory (text + data + misc): 43402 bytes
+Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
+```
+
+### Program your board
+
+1. Connect your mbed device to the computer over USB.
+1. Copy the binary file to the mbed device.
+1. Press the reset button to start the program.
+
+The LED on your platform turns on and off.
+
+## Troubleshooting
+
+If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SoftPWM.lib	Wed Mar 07 10:07:30 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/komaida424/code/SoftPWM/#7918ce37626c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Mar 07 10:07:30 2018 +0000
@@ -0,0 +1,136 @@
+#include "mbed.h"
+
+#include "SoftPWM.h"
+
+SPI spi(p23, p24, p25); // mosi, miso, sclk
+DigitalOut cs(p22);
+
+AnalogIn   ain(A5);
+
+#define RESISTOR 46500
+
+/*
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);*/
+
+SoftPWM  led1(LED1);
+SoftPWM  led2(LED2);
+SoftPWM  led3(LED3);
+SoftPWM  led4(LED4);
+
+DigitalOut output(D11);
+
+DigitalOut mux0(D2);
+DigitalOut mux1(D1);
+DigitalOut mux2(D0);
+
+DigitalOut col0(D3);
+DigitalOut col1(D4);
+
+float rowreadings[2][2];
+float rowsum[2];
+int sensordata[2][2];
+
+Serial pc(USBTX, USBRX);
+
+// main() runs in its own thread in the OS
+int main()
+{
+    led1.period_ms( 1 ); //set up pwm
+    led2.period_ms( 1 );
+    led3.period_ms( 1 );
+    led4.period_ms( 1 );
+    pc.baud (115200);
+
+    cs = 1;// Chip must be deselected
+
+    // Setup the spi for 8 bit data, high steady state clock,
+    // second edge capture, with a 1MHz clock rate
+    spi.format(8,3);
+    spi.frequency(1000000);
+
+    cs = 0;// Select the device by seting chip select low
+    spi.write(0x0A); //write mode
+    spi.write(0x2D); // power register
+    spi.write(0x02); //enable measurement mode
+    cs = 1;// Deselect the device
+
+    //__disable_irq(); //the tick(?) runs every 1ms, and halts everything for 50uS!
+    while(1) {
+
+
+        cs = 0;// Select the device by seting chip select low
+        spi.write(0x0B); //read mode
+        spi.write(0x08);     // X axis
+        int xacc=spi.write(0x00); //dummy byte to get data
+        cs = 1;// Deselect the device
+
+        cs = 0;// Select the device by seting chip select low
+        spi.write(0x0B); //read mode
+        spi.write(0x09);     // Y axis
+        int yacc=spi.write(0x00); //dummy byte to get data
+        cs = 1;// Deselect the device
+
+        cs = 0;// Select the device by seting chip select low
+        spi.write(0x0B); //read mode
+        spi.write(0x0A);     // Z axis
+        int zacc=spi.write(0x00); //dummy byte to get data
+        cs = 1;// Deselect the device
+
+
+        //printf("X = 0x%X\n, Y = 0x%X\n, Z = 0x%X\n, ", xacc,yacc,zacc);
+
+        mux0=0;
+        mux1=0;
+        mux2=0; //select Y0
+
+        col0=1;
+        col1=0; //select col 0
+
+        rowreadings[0][0]=ain;
+
+        col0=0;
+        col1=1; //select col 1
+        rowreadings[0][1]=ain;
+        rowsum[0]=0.0f;
+        for(int i=0; i<2; i++) {
+            rowsum[0]+=rowreadings[0][i];
+        }
+
+        for(int i=0; i<2; i++) {
+            sensordata[0][i]=(1-rowsum[0])*RESISTOR/rowreadings[0][i];
+        }
+        mux0=1;
+        mux1=0;
+        mux2=0; //select Y0
+
+        col0=1;
+        col1=0; //select col 0
+
+        rowreadings[1][0]=ain;
+
+        col0=0;
+        col1=1; //select col 1
+        rowreadings[1][1]=ain;
+        rowsum[1]=0.0f;
+        for(int i=0; i<2; i++) {
+            rowsum[1]+=rowreadings[1][i];
+        }
+
+        for(int i=0; i<2; i++) {
+            sensordata[1][i]=(1-rowsum[1])*RESISTOR/rowreadings[1][i];
+        }
+
+    pc.printf("%i,%i,%i,%i\n", sensordata[0][0], sensordata[0][1], sensordata[1][0], sensordata[1][1]);
+    
+    
+        led1=1.0f-((8000.0f-sensordata[0][0])/500.0f)*((8000.0f-sensordata[0][0])/500.0f)*((8000.0f-sensordata[0][0])/500.0f)/5000.0f;
+        led2=1.0f-((8000.0f-sensordata[1][0])/500.0f)*((8000.0f-sensordata[1][0])/500.0f)*((8000.0f-sensordata[1][0])/500.0f)/5000.0f;
+        led3=1.0f-((8000.0f-sensordata[0][1])/500.0f)*((8000.0f-sensordata[0][1])/500.0f)*((8000.0f-sensordata[0][1])/500.0f)/5000.0f;
+        led4=1.0f-((8000.0f-sensordata[1][1])/500.0f)*((8000.0f-sensordata[1][1])/500.0f)*((8000.0f-sensordata[1][1])/500.0f)/5000.0f;
+    //wait(0.5);
+    }
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Mar 07 10:07:30 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#569159b784f70feaa32ce226aaca896fb83452f7