VitroBlue
Newbie level 3
pic 18f97j60 price
hi, i'm new in here, i'm still an undergrad
i was asked to desing a board for this pic with a freaking lot of stuff (zigbee module, ethernet module, uasrt module, 4x4 keypad, LCD, external data and program and stuff memories, control LEDs, switches, buttons...), but i'm having troubles to make it since i wasn't given any further specifications but those in the pic datasheet.
THE ACTUAL PROBLEM is the USART module. from the block diagram i thought the best thing to do would be to multiplex both the RS232 and the RS485 modules since the pic is supposed to be able to use any of them at any given time (it MUST have both separately). I already designed the 232 schematic, but i had never used the 485 before so i ignore exactly how to connect it (teorically i understand how it works, but in practice is another tale).
I have also the components price and board size limits. its only a design task, but still it has to be as generic, small and cheap as possible. I have almost everything else figured out by now, but this 485 module. so i was wondering if someone could help me out ideally with an schematic, but at least with a useful reference, because i'm kinda lost here.
Thank you in advance
atte: me
hi, i'm new in here, i'm still an undergrad
i was asked to desing a board for this pic with a freaking lot of stuff (zigbee module, ethernet module, uasrt module, 4x4 keypad, LCD, external data and program and stuff memories, control LEDs, switches, buttons...), but i'm having troubles to make it since i wasn't given any further specifications but those in the pic datasheet.
THE ACTUAL PROBLEM is the USART module. from the block diagram i thought the best thing to do would be to multiplex both the RS232 and the RS485 modules since the pic is supposed to be able to use any of them at any given time (it MUST have both separately). I already designed the 232 schematic, but i had never used the 485 before so i ignore exactly how to connect it (teorically i understand how it works, but in practice is another tale).
I have also the components price and board size limits. its only a design task, but still it has to be as generic, small and cheap as possible. I have almost everything else figured out by now, but this 485 module. so i was wondering if someone could help me out ideally with an schematic, but at least with a useful reference, because i'm kinda lost here.
Thank you in advance
atte: me