Design Custom Board for 7" TFT

[mhtariq91]

Hi,

I am developing a POS Solution based on a 7" TFT as HMI. I want to use STM32F4 or F7 mcu and use TouchGFX and STM32Cube IDE.

I have previous experience of developing HMI applications on STM32F746 Disco Board. Now I need help and guidance in developing a custom board for above mentioned solution with a lowest minimum budge.

I don't have experience and facilities to work with BGA ICs. Would it be possible to develop required board with all TQFP package ICs.

Any help would be highly appreciated.

Best regards,

M.H. Tariq

[COSEBE]

Hi,

With touchGFX integrated with STM32CubeMx, it is simple.

Just configure you hardware with cubeMX and verify with image LCD driver and memory driver are correct.

I use my own board with STM32F746I with TQFP package

[HP_it]

Sure, it's possible to use TQFP packages for this. the -746 comes in a variety of sizes, 100, 144, 176 and 208 pin packages (TQFP ones with a 0.5mm pitch).

Just BEWARE that the 100 and 144 pin packages does NOT support the parallel display interface at the same time as SDRAM. I'm using the 176 pin package on a 4-layer PCB along with SDRAM and QSPI flash and a host of other things. So far the bring-up is running fairly smooth.