David Anasco
demonstrates: - interrupts - sd card storage - file write/ read - RTC get time - timer vs delay
Dependencies: USBMSD_BD MAX7219 ds3231 max32630fthr USBDevice
Revision 0:0df734b49f24, committed 2021-08-11
- Comitter:
- davidanasco
- Date:
- Wed Aug 11 09:57:08 2021 +0000
- Commit message:
- initial commit
Changed in this revision
diff -r 000000000000 -r 0df734b49f24 MAX7219.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAX7219.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/davidanasco/code/MAX7219/#e1415fc2841c
diff -r 000000000000 -r 0df734b49f24 USBDevice.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/MaximIntegrated/code/USBDevice/#17ac7abb27a7
diff -r 000000000000 -r 0df734b49f24 USBMSD_BD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBMSD_BD.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/switches/code/USBMSD_BD/#13fed87fb66f
diff -r 000000000000 -r 0df734b49f24 ds3231.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ds3231.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/Maxim-Integrated/code/ds3231/#11630748e2f2
diff -r 000000000000 -r 0df734b49f24 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Aug 11 09:57:08 2021 +0000
@@ -0,0 +1,309 @@
+// Includes and Definitions
+#include "mbed.h"
+#include "max32630fthr.h"
+#include "ds3231.h"
+#include "SDBlockDevice.h"
+#include "HeapBlockDevice.h"
+#include "FATFileSystem.h"
+#include "max7219.h"
+#include <string>
+
+#define BLOCK_SIZE 512
+
+// Objects
+MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+
+Timer overCrowdBlinker;
+Timer missingMicroSDBlinker;
+Timer pollDelay;
+Timer sameCardRejectDelay;
+
+SDBlockDevice bd(P0_5, P0_6, P0_4, P0_7);
+FATFileSystem fs("fs");
+
+// Variables
+bool logSuccessFlag = false;
+int entryCountSincePowerOn = 0;
+int entryCountSinceBegin = 0;
+int err = 0;
+char c;
+
+int headCount = 0;
+int oldHeadCount = 0;
+bool overCrowdBlink = true;
+bool goingIn = true;
+
+// GPIOs
+DigitalOut rLED(LED1);
+DigitalOut gLED(LED2);
+DigitalOut bLED(LED3);
+DigitalOut overcrowd_alarm(P4_0);
+
+InterruptIn outsideSensor(P5_7);
+InterruptIn insideSensor(P6_0);
+
+DigitalIn uSDetect(P2_2,PullUp);
+
+DigitalIn dum1(P4_4, OpenDrain);
+DigitalIn dum3(P4_5, OpenDrain);
+DigitalIn dum2(P4_6, OpenDrain);
+DigitalIn dum4(P4_7, OpenDrain);
+
+void killTheLights();
+void blinkLed(bool, bool, bool);
+
+void enterISR();
+void egressISR();
+
+void mountFileSystem();
+void checkFile();
+void logEntry(int, string);
+
+int main(){
+ killTheLights();
+ blinkLed(1,0,0);
+ blinkLed(0,1,0);
+ blinkLed(0,0,1);
+
+ Ds3231 rtc(I2C1_SDA, I2C1_SCL); // SDA, SCL
+
+ Max7219 segDriver(P5_1, P5_2, P5_0, P4_7);
+
+ max7219_configuration_t segConfig = {
+ .device_number = 1,
+ .decode_mode = 0x01,
+ .intensity = Max7219::MAX7219_INTENSITY_F,
+ .scan_limit = Max7219::MAX7219_SCAN_4
+ };
+
+ segDriver.set_display_test();
+ wait(0.5);
+ segDriver.clear_display_test();
+ segDriver.init_device(segConfig);
+ segDriver.enable_device(1);
+ segDriver.clear_digit(1, Max7219::MAX7219_D0_P0);
+ wait(0.5);
+
+ outsideSensor.mode(PullDown);
+ insideSensor.mode(PullDown);
+ outsideSensor.fall(&enterISR);
+ insideSensor.fall(&egressISR);
+
+ overCrowdBlinker.start();
+ missingMicroSDBlinker.start();
+ pollDelay.start();
+ sameCardRejectDelay.start();
+
+ char timeBuffer[32];
+
+ time_t epoch_time;
+
+ printf("%c[2J", 0x1B); //clear screen
+ printf("%c[H", 0x1B); //move cursor to Home
+ printf("\r\n\n\n--- Passage Counter ---\r\n\n");
+
+ while(1){
+ // phase 1 routine
+ gLED = LED_OFF;
+ bLED = LED_OFF;
+ segDriver.write_digit(1, Max7219::MAX7219_D0_P0, headCount);
+ if(headCount != oldHeadCount){
+ segDriver.write_digit(1, Max7219::MAX7219_D0_P0, headCount);
+ oldHeadCount = headCount;
+ for(int ii = 0; ii<3; ii++){
+ if(goingIn) bLED = LED_ON; else gLED = LED_ON;
+ wait(0.1);
+ if(goingIn) bLED = LED_OFF; else gLED = LED_OFF;
+ wait(0.1);
+ }
+
+ mountFileSystem();
+ if(err == 0){
+ checkFile();
+ epoch_time = rtc.get_epoch();
+ strftime(timeBuffer, 32, "%a %b%e %G %X", localtime(&epoch_time));
+
+ logEntry(headCount, timeBuffer);
+ printf("Unmounting...");
+ fflush(stdout);
+ err = fs.unmount();
+ printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
+ }
+ else blinkLed(1,0,0);
+
+ wait_ms(10);
+ printf("...RFID Reset. after succeeded\r\n");
+ }
+ if(headCount>4){
+ if(overCrowdBlinker.read_ms()>300){
+ overcrowd_alarm =! overcrowd_alarm;
+ overCrowdBlinker.reset();
+ }
+ } else overcrowd_alarm = false;
+
+
+ // phase 2 routine
+ if(uSDetect == 1){
+ if(missingMicroSDBlinker.read_ms()>300){
+ rLED =! rLED;
+ missingMicroSDBlinker.reset();
+ }
+ }
+ //end of idle loop
+ }
+ //end of main
+}
+
+
+void killTheLights(){
+ rLED = 1; gLED = 1; bLED = 1;
+}
+
+void blinkLed(bool red, bool green, bool blue){
+ for(int xx = 0; xx<10; xx++){
+ if(red)rLED =! rLED;
+ if(green)gLED =! gLED;
+ if(blue)bLED =! bLED;
+ wait(0.05);
+ }
+ killTheLights();
+}
+
+void enterISR(){
+ bLED = LED_ON;
+ while(outsideSensor.read() == 0){
+ if(insideSensor.read() == 0){
+ while(insideSensor.read() == 0 && outsideSensor.read() == 0){
+ // stall until further event
+ }
+ if(outsideSensor.read() == 1){
+ while(outsideSensor.read() == 1 && insideSensor.read() == 0){
+ // stall until further event
+ }
+ if(insideSensor.read() == 1){
+ headCount++;
+ //if(headCount>9) headCount = 9;
+ goingIn = true;
+ return;
+ // last of if inside high
+ }
+ // last of if outside high
+ }
+ // last of if inside low
+ }
+ // last of while outside low
+ }
+ // last of enterISR
+}
+
+void egressISR(){
+ gLED = LED_ON;
+ while(insideSensor.read() == 0){
+ if(outsideSensor.read() == 0){
+ while(outsideSensor.read() == 0 && insideSensor.read() == 0){
+ // stall until further event
+ }
+ if(insideSensor.read() == 1){
+ while(insideSensor.read() == 1 && outsideSensor.read() == 0){
+ // stall until further event
+ }
+ if(outsideSensor.read() == 1){
+ headCount--;
+ if(headCount<0) headCount = 0;
+ goingIn = false;
+ return;
+ // last of if outside high
+ }
+ // last of if inside high
+ }
+ // last of if outside low
+ }
+ // last of while inside low
+ }
+ // last of egressISR
+}
+
+void mountFileSystem(){
+ printf("Mounting the filesystem...");
+ fflush(stdout);
+
+ err = fs.mount(&bd);
+ printf("%s\r\n", (err ? "Fail :(" : "OK"));
+ if(err){
+ printf("No filesystem found, formatting...");
+ fflush(stdout);
+ err = fs.reformat(&bd);
+ printf("%s\r\n", (err ? "Fail :(" : "OK"));
+ rLED = LED_ON;
+ }
+ else blinkLed(0,0,1);
+}
+
+void checkFile(){
+ printf("Checking if file exists \"/fs/log.txt\"...");
+ fflush(stdout);
+
+ FILE *f = fopen("/fs/log.txt", "r");
+ printf("%s\r\n", (!f ? "Fail :(" : "OK"));
+
+ if(!f){
+ //--if fail, create file
+ printf("info: No file found, creating a new file...");
+ fflush(stdout);
+
+ f = fopen("/fs/log.txt", "w+"); // RW mode. erase all contents. create new file if non-existent
+ printf("%s\r\n", (!f ? "Fail :(" : "OK"));
+ printf("Writing header...");
+ err = fprintf(f, "ID Date Time since POR since Begin 0000000000\r\n");
+ printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
+ }
+
+ //--close file
+ printf("Closing \"/fs/log.txt\"...");
+ fflush(stdout);
+ err = fclose(f);
+ printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
+ blinkLed(0,0,1);
+}
+
+void logEntry(int idStamp, string timeStamp){
+ printf("Opening file \"/fs/log.txt\"..."); // takes formatted const char to stdout
+ fflush(stdout); // flushes buffered data to the target device/ stream
+
+ FILE *f = fopen("/fs/log.txt", "r+"); // RW mode. read from start. error if non-existent
+ printf("%s\r\n", (!f ? "Fail :(" : "OK"));
+ printf("Logging entry...");
+ fflush(stdout);
+
+ fseek(f,-10,SEEK_END);
+ fscanf(f,"%d",&entryCountSinceBegin);
+ //printf("the last rowCount was: %010d\r\n",entryCountSinceBegin);
+ fseek(f,0,SEEK_END);
+ entryCountSinceBegin++;
+ entryCountSincePowerOn++;
+ err = fprintf(f, "%d %s %d %10d\r\n", idStamp, timeStamp, entryCountSincePowerOn, entryCountSinceBegin); // 0; //
+ printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
+ if(err < 0){
+ blinkLed(1,0,0);
+ }
+ else{
+ sameCardRejectDelay.reset();
+ logSuccessFlag = true;
+ blinkLed(0,1,0); // final success. greenlight.
+ }
+
+ // DUMP
+ rewind(f);
+ printf("==Dump==\r\n");
+ while (!feof(f)) {
+ int c = fgetc(f);
+ printf("%c", c);
+ }
+ printf("==EndofDump==\r\n");
+
+ //--close file
+ printf("Closing \"/fs/log.txt\"...");
+ fflush(stdout);
+ err = fclose(f);
+ printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
+}
diff -r 000000000000 -r 0df734b49f24 max32630fthr.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/max32630fthr.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +http://os.mbed.com/teams/MaximIntegrated/code/max32630fthr/#9eb360063579
diff -r 000000000000 -r 0df734b49f24 mbed-os.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#569159b784f70feaa32ce226aaca896fb83452f7
diff -r 000000000000 -r 0df734b49f24 sd-driver.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sd-driver.lib Wed Aug 11 09:57:08 2021 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/sd-driver/#f4ab55df7768cfcb049b522bebd30218ee729c81