esp8266 HX711.Serial Stack

Hi,

I wonder if anyone here is familiar with esp-01. I've got the following setup to read sensor value with help of bogde's hx711 library

esp-01
24 bit ADC board
library from bogde

I've been successful for most parts with the esp. It runs about any other sketch without fail. The HX711.Serial works fine on an Arduino Uno too. But I am trying to get it running on the ESP-01 but so far no luck.

I get the following stack problem:

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Before setting up the scale:
read: 89524
read average: 89531
get value: 89557.00
get units:
Soft WDT reset

ctx: cont
sp: 3ffef820 end: 3ffefa90 offset: 01b0

stack>>>
3ffef9d0: 00000000 00000000 00000000 000000fe
3ffef9e0: 000000a1 000419aa 3ffee948 40201ae1
3ffef9f0: 000000d8 00000001 3ffe8561 40202758
3ffefa00: 3ffeea34 0000000c 3ffe84e0 00000005
3ffefa10: 3ffee948 000577d2 00000004 40201c3b
3ffefa20: 3ffe84b0 3ffee948 3ffeea34 3ffe84a4
3ffefa30: 3ffee948 3ffee948 3ffee948 40201c76
3ffefa40: 3ffe84b0 3ffee948 3ffeea34 40201caa
3ffefa50: 3ffe84b0 3ffee948 3ffeea34 40201936
3ffefa60: 00000000 00000000 00000000 3ffeea60
3ffefa70: 3fffdc20 00000000 3ffeea58 402024ce
3ffefa80: 00000000 00000000 3ffeea70 40100114
<<<stack<<<

As you can see, it fails around "get units:"

Perhaps someone on here would be able to help and explain.