first of all I hope everyone is good for the covid. And the pandemic has improve your time in to your proyects.
For me was like this and I start to do my first pcbs with schematics. this week I made a try with an Atmega328P-PU, I took it like a challenge to improve but also cuz it is the more easy way to achieve what I like to do.
for this project a have 2 main issues, first, with some schematics that I see online, they connect the port CS of the communication to the reset pin but some intuitions says me that it should be connected to PB2(pin 14) (SS). Am I right? Or it doesn't matter?(see the attachment 1 with the schematic)
and second. I want to use for this project the internal 8Mhz clock of the atmega, but in my google research i see that the people that use this method, program the atmega328 with an FTDI programmer connected to the UART pins (witch ive never used before). Is there a way to do the same but with other arduino instead of buying the FTDI programmer?
any help is welcome and i'll be very grateful with any advice to improve mi schematic or pcb.