I want to test a EM7455 when draining maximum current for a thermal design. Therefore, I wanted to use AT commands and the testmode to generate as much heat as possible. This already worked great on an MC7304 consuming up to 800 mA. Unfortunatelly I do not have a RF tester or a good LTE signal for real data transmission, so I have to rely on the AT commands.
But when trying the script below I only get a maximum current consumption of around 350 mA, although the datasheet gives a value of up to 1000 mA. Is there a known option to increase the current consumption with a AT command (e.g. a special frequency? I already tried most combinations, so I doubt that).
This is my script:
ati Manufacturer: Sierra Wireless, Incorporated Model: EM7455 Revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09 MEID: 35907306012007 IMEI: 359073060120072 IMEI SV: 12 FSN: LF710171200110 +GCAP: +CGSM OK at!entercnd="A710" OK at!dastxoff OK at!usbcomp? Config Index: 1 Config Type: 1 (Generic) Interface bitmask: 0000100D (diag,nmea,modem,mbim) OK at!daftmact OK at!dasband=56 0 OK at!dalstxbw=5 OK at!dalsrxbw=5 OK at!daschan=24440 24320 OK at!dastxon OK at!dalswaveform=1,50,0,0 OK at!dalswaveform=3,50,0,0 OK at!dalsparange=0 0 OK at!dalstxindex=127 OK AT!PCTEMP? Temp state: Normal Temperature: 30.00 C OK