Arduino: ESP.deepSleep causes "hang" after wakeup?

[dariopb]

ESP201, Arduino esp8266 (using platformio, but same happens if I compile using the arduino env), XDP pin connected to RST

void setup() {
Serial.println("Setup");
ESP.deepSleep(5 * 1000000);
}

 ets Jan  8 2013,rst cause:1, boot mode:(3,7)

load 0x4010f000, len 1264, room 16
tail 0
chksum 0x42
csum 0x42
~ld
Setup

Seems the chip enters deep sleep and then resets correctly, but:

ets Jan  8 2013,rst cause:5, boot mode:(3,7)
ets_main.c

and my setup code is not reached...

How can I troubleshoot the issue?

[Links2004]

gpio 16 is connected to ch_pd?

[dariopb]

gpio 16 is connected to RST.

[dariopb]

That was it! I went and looked and it seems the board i am using had RST connected to CD_PD! After removing this tie deep sleep and restart works as expected! Thanks Links2004!