- Mon Nov 10, 2008 11:39 am
#58715
Hello, I have a very weird issue with the module, it resets itself like 15 seconds after the AT+CPIN=<pin> command.
I have the USB evaluation board (the red one) and I was supplying the board at first with a 5V DC transformer, I thought maybe was something to do with the dropout (it dropped sometimes about 4.2V, so it's very close to the 3.8V supply) so I switched to a 12V with the same result.
When I turn on the module the stat led starts to blink fast, I can use the GPS commands, and everything works fine, when I enter the pin code, the module register itself into the network (I measured the current to check it was all right, about 210 mA peak in the registration phase) and then, after about 15-20 seconds, one of two things happens:
1) The module restarts so the stat led starts blinking fast (and I have to enter the pin code again).
2) The module hangs and becomes totally unresponsive (with the stat led completely off) and the only way I can get it working again is unplugging and plugging the DC supply and the USB cable (the on/off button doesn't works here). At this time the current is about 90mA.
I need help, if someone can give me any advice, or tell me what is going on, i would be really appreciated.
Thanks in advance.
I have the USB evaluation board (the red one) and I was supplying the board at first with a 5V DC transformer, I thought maybe was something to do with the dropout (it dropped sometimes about 4.2V, so it's very close to the 3.8V supply) so I switched to a 12V with the same result.
When I turn on the module the stat led starts to blink fast, I can use the GPS commands, and everything works fine, when I enter the pin code, the module register itself into the network (I measured the current to check it was all right, about 210 mA peak in the registration phase) and then, after about 15-20 seconds, one of two things happens:
1) The module restarts so the stat led starts blinking fast (and I have to enter the pin code again).
2) The module hangs and becomes totally unresponsive (with the stat led completely off) and the only way I can get it working again is unplugging and plugging the DC supply and the USB cable (the on/off button doesn't works here). At this time the current is about 90mA.
I need help, if someone can give me any advice, or tell me what is going on, i would be really appreciated.
Thanks in advance.