SparkFun DataLogger IoT - 9DoF, Max sample rate

Development Boards
1

My understanding is that the Spark Fun Data Logger IoT - 9DoF SKU: DEV-20594 should be able to sample up to every 38 milliseconds

However if I sample faster than every 100ms I get the following error, My board is running Firmware Version: 01.00.04 - build 0000bb, Am I expecting too much from this device?

ERROR:

Guru Meditation Error: Core 1 panic’ed (LoadProhibited). Exception was unhandled.

Core 1 register dump:
PC : 0x40211576 PS : 0x00060530 A0 : 0x800edfcf A1 : 0x3ffb2250
A2 : 0x00000000 A3 : 0x3ffcab50 A4 : 0x3ffb26f4 A5 : 0x000000ff
A6 : 0x3ffb2728 A7 : 0x003fffff A8 : 0x8021157c A9 : 0x3ffb2230
A10 : 0x3ffc5578 A11 : 0x3ffc54a0 A12 : 0x3ffc51a0 A13 : 0x3ffca0f8
A14 : 0x3ffb8a6c A15 : 0x3ffbd5c4 SAR : 0x0000000c EXCCAUSE: 0x0000001c
EXCVADDR: 0x0000011b LBEG : 0x40085619 LEND : 0x40085621 LCOUNT : 0x00000027

Backtrace: 0x40211573:0x3ffb2250 0x400edfcc:0x3ffb2270 0x4014d759:0x3ffb2290

ELF file SHA256: df2132f4a54cc91d

Rebooting…
ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13924
ho 0 tail 12 room 4
load:0x40080400,len:3600
entry 0x400805f0

Thanks

2

Have you tried alternate SD cards? What all is being logged (how many sensors)? Are you also writing to serial monitor or anything else connected?

3

I have tried other SD cards with varying capacity’s (Sandisk 16 and 8GB)

I am only outputting the accelerometer and gyro data.

I notice the behavior when operating console only and when logging to the SD card only, The SD card results in no data file being created.