Hello,
Firstly, Thank you for providing this opportunity.
We were engaged in the development of Embedded System product based on Arduino Mega ADK (USB Host Microcontroller) and TI based TUSB2036 Hub. We have integrated a USB Keyboard, a Flash Drive and an External Printer (laser or dot matrix) using the software libraries found on GitHub. We have also interfaced a graphic LCD display to the host microcontroller using Soft SPI and a RFID module using Soft SPI. But the problem is, we have got performance issues and the USB devices are not operating perfectly and concurrently. So, we have decided to go on with ARM Cortex based Host Microcontroller for this task. We are also looking for software libraries for Host Microcontroller to drive a keyboard, a flash drive and an printer via Hub. Considering the operation of flash drive, we need to read data from files stored on flash drive and to create files with data on flash drive. We also need UART ports to read data from other general purpose microcontroller and to push data to external display board based on multiple digit seven segment display. Moreover, there is a possibility to add more USB based devices like Barcode scanner etc.. etc.. in the future. Based on this, we are looking for a right ARM Cortex based Host Microcontroller to accomplish this task.So, I am requesting you all for a suggestion for a host microcontroller that best fits for this application.
Thank You.
Regards,Vamshi