Sleep Moddable Two

[mauroForlimpopoli]

Is there a way to put the moddable two in sleep mode ?

[mauroForlimpopoli]

I resolved with a deepSleep.c file with this funcion
#include "xs.h"

void xs_system_deepSleep (xsMachine * the)
{
esp_deep_sleep_start();
}.

But now how can I do that during sleep it run my "RTC function" ?

[phoddie]

Nice. You answered your own question about deep sleep.

Your question about the RTC is more of an ESP32 question than a Moddable SDK question. Deep sleep is particularly challenging because the content of memory is lost. That means your program stops running and is restarted when the device wakes. This tutorial over on Instructables looks like a good starting point.

[mauroForlimpopoli]

The Sleep and Wake functions work correctly. I have the problen about to put my function into RTC memory.
The example I found:
void RTC_IRAM_ATTR esp_wake_deep_sleep(void) {
esp_default_wake_deep_sleep();
// Add additional functionality here
}
and the attribute of:
RTC_DATA_ATTR int wake_count;
give error in the compiler.
The RTC data memory is located
0x3FF8_0000 to 0x3FF8_1FFF
0x400C_0000 to 0x400C_1FFF
for a total of 8k
Is it possible to choose where write my function/variables ?
Thank you

[phoddie]

@mauroForlimpopoli - when you report a problem (e.g. "give error in the compiler"), it would help if you could provide the error message and the complete example.

My guess is that your didn't include the necessary header file, so you got an error like this:

~/Projects/moddable/examples/helloworld/restart.c:5:14: error: expected ';' before 'int'
 RTC_DATA_ATTR int wake_count;

This implementation of deepSleep compiles. It includes the esp_sleep.h. I've added support for specifying a wake time, as in the Instructables example above. It also includes a wakeCount() function that returns the RTC memory counter and increments it.

#include "xs.h"
#include "esp_sleep.h"

RTC_DATA_ATTR int wake_count;

void xs_deepSleep(xsMachine * the)
{
	esp_sleep_enable_timer_wakeup(xsToInteger(xsArg(0)) * 1000);
	esp_deep_sleep_start();
}

void xs_wakeCount(xsMachine * the)
{
	xsResult = xsInteger(wake_count);
	wake_count += 1;
}

Here's a JavaScript example that deep sleeps for 500 seconds intervals and outputs the wake count on each wake.

function deepSleep(ms) @ "xs_deepSleep"
function wakeCount() @ "xs_wakeCount"

trace(wakeCount() + "\n");

deepSleep(500);

[mauroForlimpopoli]

simply a get 01/01/1970 00:00 ...
and the time go on....
after 5 minutes 00:05 I cause a sleep for some seconds......it wake up with 00:05. It keeps the time. Only I don't read the right date when it's wifi connected. With programmer board attached it runs right

[phoddie]

There is no battery backed clock on the Moddable Two board. The time needs to be initialized somehow.

When using the xsbug for debugging, the ESP32 clock is automatically initialized by xsbug when the debugging connection is established. When you are not debugging, you need to initialize the time somehow.

Since you are managing the Wi-Fi connection yourself, you will need to initialize the time in your code. This is explained in our book IoT Development for ESP32 and ESP8266 with JavaScript on pages 177 and 178. You might also take a look at the SNTP example in the Moddable SDK.

[mauroForlimpopoli]

Thank you, It was necessary to set the SNTP .

[mauroForlimpopoli]

Good morning,
when the ESP32 is in "Deep-sleep" mode, the moddable two absorbs about 2mA if supplied on 3.3 Vdc. In the datasheet the consumption is about 100uA. I suppose the difference could be done cause the supply of other ICs on 3,3 Vdc. Is there a way to disable che TouchScreen IC or LCD IC by software command ?
Thank you

[mauroForlimpopoli]

After more accurate test, I misured a current of 8/10 mA (3.3 Vdc). Either with the "Deep Sleep" command or by keeping the "Reset" button pressed. This consumption could be from the ICs of the device?
The FT6206 and ILI9341 drivers have a "Reset pin" (no. 36 and 6). It seems that by keeping them low, the devices are set in "sleep mode" to reduce the consumption. Are they connected in the board? Where?
I found this indication to set the RST line of ILI9341 .

"defines": {
	"ili9341": {
		"width": 240,
		"height": 320,
		"hz": 10000000,
		"flipX": true,
		"flipY": false,
		...
		"rst": {
			"port": null,
			"pin": 0
		},
		...

Is it means that I choose if the reset pin is connected or not ? (How is the default value?)
Thank you

[phoddie]

The reset pins of the touch and display controllers are not connected to GPIO pins on Moddable Two.