hareesh350
Newbie level 4
- Joined
- Aug 22, 2011
- Messages
- 6
- Helped
- 1
- Reputation
- 2
- Reaction score
- 1
- Trophy points
- 1,283
- Location
- india
- Activity points
- 1,314
Hi all,
I am facing a very critical problem. We are using GSM chip SIMCOM sim800h with STM32L152 microcontroller.
We designed a 4 layer PCB. Problem is Microcontroller is going to when the GSM modem communicating with the tower.
When we switch on the modem we can see the hard fault exceptions in the IAR workbench.
We thought it is because of some software bug but we were wrong, we are getting exception even when we run simple WHILE loop and turn no GSM modem manually.
We are getting a software exception because of the hardware(GSM antenna). The images below are the PCB layers TOP and Bottom.
Can anyone suggest how to solve this problem.
- - - Updated - - -
I am facing a very critical problem. We are using GSM chip SIMCOM sim800h with STM32L152 microcontroller.
We designed a 4 layer PCB. Problem is Microcontroller is going to when the GSM modem communicating with the tower.
When we switch on the modem we can see the hard fault exceptions in the IAR workbench.
We thought it is because of some software bug but we were wrong, we are getting exception even when we run simple WHILE loop and turn no GSM modem manually.
We are getting a software exception because of the hardware(GSM antenna). The images below are the PCB layers TOP and Bottom.
Can anyone suggest how to solve this problem.
- - - Updated - - -
