We own a few GSM Gateways and we would like to be able to send AT commands directly to the GSM module. The only way to do that is using UART from the ARM11 Chip to GSM module.
The embedded busybox includes microcom to which we have access.
For this project, it requires some reverse engineering skills in Linux embedded system.
It's a little more complicate because the embedded ARM communicates to GSM modules trough FGPA chip. So what we probably need first is to find and read the UART connection between FPGA and ARM chip. We already have some decompiled code in which there is communication between the main ARM chip and GSM Module trough FPGA.
We can give you remote access directly to the device.
9 威客就此工作平均出价 €1315
Hi, I am good in hardware, fpga, embedded linux, and reverse engineering. Please share the circuit schematic and fpga code if available. Do you have any user guide of the board? Regards, mastor
Hello, I have very strong skills in reverse engineering and I can do any RE work, but first I have to look at the binary, could you share the information (name of GSM Gateways) and firmware. Sergey