| ??? 11/16/04 20:31 Read: times |
#81311 - Re: Help with Cypress USB Responding to: ???'s previous message |
1. Do you have 1k pull-up resistors on the I2C lines (SDA and SCL)? The FX family attempt to boot from I2C eeprom and appear as a default USB device if no eeprom is present. However, if the I2C pull-up resistors are missing or damaged then the I2C hardware hangs and the processor never starts.
2. You can't see the device in Cypress' USB manager but does it appear in Windows Device Manager at all? |
| Topic | Author | Date |
| Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| Help with Cypress USB | 01/01/70 00:00 | |
| RE: Help with Cypress USB | 01/01/70 00:00 | |
| Re: Help with Cypress USB | 01/01/70 00:00 | |
Atlast Solved | 01/01/70 00:00 |