Paul Clarke
Used for testing battery sense circuit, looking for max and min levels. Allow for finding true empty, half and full values for driving LEDs for example
Dependencies: mbed MPL3115A2 TSI WiGo_BattCharger
Revision 0:17ad5a30ff25, committed 2013-05-16
- Comitter:
- monpjc
- Date:
- Thu May 16 07:31:47 2013 +0000
- Child:
- 1:b1921e153d21
- Commit message:
- Basic test of max and min batt levels
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 |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu May 16 07:31:47 2013 +0000
@@ -0,0 +1,111 @@
+#include "mbed.h"
+
+//Battery Circuit
+#define BATT_FULL PTB10
+#define BATT_MED PTB9
+#define BATT_LOW PTB8
+#define CHRG_EN1 PTB2
+#define CHRG_EN2 PTB3
+#define CHRG_SNS_EN PTC2
+#define CHRG_SNS PTB1
+#define CHRG_POK PTC6
+#define CHRG_CHG PTA5
+#define POWER_OK 0
+#define CHARGING 0
+#define LED_ON 0
+#define LED_OFF 1
+
+#define RGB_LED_ON 0
+#define RGB_LED_OFF 1
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+
+Serial pc(USBTX, USBRX);
+
+//Battery
+DigitalOut BattFull(BATT_FULL);
+DigitalOut BattMed(BATT_MED);
+DigitalOut BattLow(BATT_LOW);
+DigitalOut ChargeEN1(CHRG_EN1);
+DigitalOut ChargeEN2(CHRG_EN2);
+DigitalOut ChargeSenseEN(CHRG_SNS_EN);
+DigitalIn SupplyOk(CHRG_POK);
+DigitalIn Charging(CHRG_CHG);
+AnalogIn ChargeSense(CHRG_SNS);
+
+float max_batt;
+float min_batt;
+float batt_lvl;
+
+int main()
+{
+
+ //100mA Charge
+ ChargeEN1 = 0;
+ ChargeEN2 = 0;
+
+ ChargeSenseEN = 0;
+ wait(0.5);
+ max_batt = ChargeSense;
+ min_batt = ChargeSense;
+
+ while(1) {
+
+ //If charging then blink Blue led to show we are alive
+ if( Charging == CHARGING ) {
+ myled2 = RGB_LED_OFF;
+ myled3 = RGB_LED_OFF;
+
+ myled1 = RGB_LED_ON;
+ wait(0.1);
+ myled1 = RGB_LED_OFF;
+ wait(0.9);
+ }
+
+ //If no power applied (via USB) then turn all on, blink Bled led off
+ if( SupplyOk != POWER_OK ) {
+ myled2 = RGB_LED_ON;
+ myled3 = RGB_LED_ON;
+
+ myled1 = RGB_LED_OFF;
+ wait(0.1);
+ myled1 = RGB_LED_ON;
+ wait(0.9);
+ }
+
+ batt_lvl = ChargeSense;
+
+ if( batt_lvl <= 0.53 ) {
+ BattLow = LED_OFF;
+ BattMed = LED_OFF;
+ BattFull = LED_OFF;
+ }
+ if( batt_lvl > 0.53 && batt_lvl <= 0.605 ) {
+ BattLow = LED_ON;
+ BattMed = LED_OFF;
+ BattFull = LED_OFF;
+ }
+ if( batt_lvl > 0.605 && batt_lvl <= 0.67 ) {
+ BattLow = LED_ON;
+ BattMed = LED_ON;
+ BattFull = LED_OFF;
+ }
+ if( batt_lvl > 0.67 ) {
+ BattLow = LED_ON;
+ BattMed = LED_ON;
+ BattFull = LED_ON;
+ }
+
+ if( batt_lvl < min_batt ) {
+ min_batt = batt_lvl;
+ }
+
+ if( batt_lvl > max_batt ) {
+ max_batt = batt_lvl;
+ }
+
+ pc.printf(">%f Min:%f Max:%f\n\r", batt_lvl, min_batt, max_batt);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu May 16 07:31:47 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17 \ No newline at end of file