| ??? 02/24/11 00:10 Read: times |
#181275 - Completely the wrong interface!! Responding to: ???'s previous message |
Amilkar Soto said:
I´m making a keyboard using Micro 87c51 That is a really ancient chip with UV-Eraseable EPROM!! but i have a problem that i dont know how to make the connection from TxD port(80c57) to UM232R(RxD) with the protocol USB HID. You can't: the chip does not have USB - It was obsolete long before USB was even thought of! i know that transmit serial using SBUF (8 bit) That's the UART - it is not USB! |
| Topic | Author | Date |
| Help in micro 87c51 to USB HID with UM232R | 01/01/70 00:00 | |
| Completely the wrong interface!! | 01/01/70 00:00 | |
| There may be a way.....but | 01/01/70 00:00 | |
| Other ways | 01/01/70 00:00 | |
| Dual PS/2 to USB Converters | 01/01/70 00:00 | |
| UM232R | 01/01/70 00:00 | |
| is impossible to use the USB HID protocol with 87c51? | 01/01/70 00:00 | |
Depends what you mean by "with" | 01/01/70 00:00 |