STM32F with 50 led & 40 inputs

[vindhyachal]

Posted on April 20, 2015 at 13:17

1. I have to drive 50 individually controlled led & 40 input pins.

2. I have selected STM32F205ZCT6 which have 114 IO.3. Schematic can be found here:http://www.docdroid.net/xwuk/dio.pdf.html4. TO drive each led the cicruit is driven using 2N7002 as shown in circuit.5. osc used is ECS-160-20-3X-EN-TR with 10pf load capacitors.6. Are rest of connections ok. Like power & grounding. Since this MCU have lots of power & ground connctions.