{"id":1036,"date":"2016-05-22T11:14:52","date_gmt":"2016-05-22T11:14:52","guid":{"rendered":"http:\/\/wp.andreas.bieri.name\/myblog\/?p=1036"},"modified":"2016-05-22T11:14:52","modified_gmt":"2016-05-22T11:14:52","slug":"power-hold-test-code","status":"publish","type":"post","link":"http:\/\/wp.andreas.bieri.name\/myblog\/2016\/05\/22\/power-hold-test-code\/","title":{"rendered":"Power Hold Test Code"},"content":{"rendered":"

Generischer Code f\u00fcr eine Power Hold Schaltung: <\/span><\/p>\n

Ein Ger\u00e4t wird durch Tippen auf eine Taste gestartet, die an einer Power Hold Schaltung angeschlossen ist. Der Tastendruck aktiviert einen Spannungsregler mit Enable\/Shutdown Funktion. Nach Loslassen der Taste ist ein Mikrocontroller daf\u00fcr zust\u00e4ndig, diese\u00a0 Leitung auf dem Power On-Pegel zu halten (in der Regel elektrisch high). Abschalten wird durch diesen Code hier ausgel\u00f6st, wenn ein langer Tastendruck erfolgt.<\/span><\/p>\n

Dieser Code setzt die entsprechende Power Hold Schaltung voraus, z.B. diese (R. Elmiger):<\/span><\/p>\n

\"powerhold1\"<\/p>\n

Oder hier <\/a>meine Implementation, schon vorbereitet f\u00fcr den Einsatz eines Super Cap.\u00a0<\/span><\/p>\n

\n
\/*\n Power Hold Schaltung\u00a0 \n *\/<\/pre>\n
#define POWERHOLD\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0 \/\/ Ausgang zum Shutdown Eingang des LT1121. High = ein\n#define SOFTOFF\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0 \/\/ Eingang, gleichzeitig Taster ON. Hier kein Pullup aktivieren, da active high\n#define LED\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 13<\/pre>\n
\/\/ Variables will change:\n#include \"WProgram.h\"\nvoid setup();\nvoid loop();\nint buttonPushCounter = 0;\u00a0\u00a0 \/\/ counter for the number of button presses\nint buttonState = 0;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ current state of the button\nint lastButtonState = 0;\u00a0\u00a0\u00a0\u00a0 \/\/ previous state of the button<\/pre>\n
void setup() {\n\u00a0 pinMode(SOFTOFF, INPUT);\n\u00a0 pinMode(POWERHOLD, OUTPUT); \n\u00a0 Serial.begin(9600);\n\u00a0 delay(2000);\n\u00a0 digitalWrite(POWERHOLD, HIGH);\n\u00a0 digitalWrite(LED, HIGH); \n\u00a0 delay(5000);\n}<\/pre>\n
void loop() {\n\u00a0 buttonState = digitalRead(SOFTOFF);\n\u00a0 if (buttonState == HIGH) {\n\u00a0 \/\/ Countdown power off\n\u00a0 Serial.println(\"Power down in 5 secs\");\n\u00a0 delay(1000);\n\u00a0 Serial.println(\"Power down in 4 secs\");\u00a0 \n\u00a0 delay(1000);\u00a0 \n\u00a0 Serial.println(\"Power down in 3 secs\");\u00a0 \n\u00a0 delay(1000);\n\u00a0 Serial.println(\"Power down in 2 secs\");\n\u00a0 delay(1000);\u00a0\u00a0 \n\u00a0 Serial.println(\"Power down in 1 secs\");\n\u00a0 digitalWrite(POWERHOLD, LOW); \n\u00a0 digitalWrite(LED, LOW); \n\u00a0 }\n }\n<\/pre>\n
int main(void)\n{\n\u00a0\u00a0\u00a0 init();\n\u00a0\u00a0\u00a0 setup();\n\u00a0\u00a0\u00a0 for (;;)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 loop();\n\u00a0\u00a0\u00a0 return 0;\n}\n\u00a0\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
Generischer Code f\u00fcr eine Power Hold Schaltung: Ein Ger\u00e4t wird durch Tippen auf eine Taste gestartet, die an einer Power Hold Schaltung angeschlossen ist. Der Tastendruck aktiviert einen Spannungsregler mit Enable\/Shutdown Funktion. Nach Loslassen der Taste ist ein Mikrocontroller daf\u00fcr zust\u00e4ndig, diese\u00a0 Leitung auf dem Power On-Pegel zu halten (in der Regel elektrisch high). Abschalten […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[99],"yoast_head":"\nPower Hold Test Code - Merkbar.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/wp.andreas.bieri.name\/myblog\/2016\/05\/22\/power-hold-test-code\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Power Hold Test Code - Merkbar.\" \/>\n<meta property=\"og:description\" content=\"Generischer Code f\u00fcr eine Power Hold Schaltung: Ein Ger\u00e4t wird durch Tippen auf eine Taste gestartet, die an einer Power Hold Schaltung angeschlossen ist. Der Tastendruck aktiviert einen Spannungsregler mit Enable\/Shutdown Funktion. Nach Loslassen der Taste ist ein Mikrocontroller daf\u00fcr zust\u00e4ndig, diese\u00a0 Leitung auf dem Power On-Pegel zu halten (in der Regel elektrisch high). 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Der Tastendruck aktiviert einen Spannungsregler mit Enable\/Shutdown Funktion. Nach Loslassen der Taste ist ein Mikrocontroller daf\u00fcr zust\u00e4ndig, diese\u00a0 Leitung auf dem Power On-Pegel zu halten (in der Regel elektrisch high). 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