I am developing a product based on the modem HL8548.
The device sends photos to a server through the HL8548, via http message. The device is working fine, most of the images are sent correctly to the server.
But there are about 3% of them that don´t arrive. I have analyzed the problem in depth, and I have found that the modem hangs in the middle of sending the failed images. Then, the modem doesn´t response until it is reset by hardware.
The voltage of the HL8548 seems good at all times.
Could you help me please with this issue? Why could the HL8548 hang?
I have been trying to get additional information through the DEBUG_TX and DEBUG_RX, AT+TRACE active, but received just a byte from the HL, I don´t know why. I don´t find anywhere the programs 3G FTT and Mobile Analyser. Could these pins give me more info about the problem?
Software Version: 07
Serial Number: HE724402470610