| ??? 09/16/05 18:01 Read: times |
#101176 - address, speed Responding to: ???'s previous message |
There are 2 issues that come immediately into mind:
1. device address, which in the asm is given for a typical serial EEPROM - you must change it for your device's address (there is a comment on it at the beginning) 2. I2C bus speed - the timing is given by timing of the instructions, so if you are using a slow bus device (or big parasitic C and high pullup) and a high-speed '51 derivative, you will need inserting some nops in between changing SDA and SCL according to I2C specs. Jan Waclawek |
| Topic | Author | Date |
| Using IIC.ASM | 01/01/70 00:00 | |
| address, speed | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| two things | 01/01/70 00:00 | |
| Is HW I2C easier? | 01/01/70 00:00 | |
| That may have been true then, this is no | 01/01/70 00:00 | |
| Replies. | 01/01/70 00:00 | |
| Check SBCMON | 01/01/70 00:00 | |
| SBCMON | 01/01/70 00:00 | |
| try a serial memory | 01/01/70 00:00 | |
| let us try another tack | 01/01/70 00:00 | |
| another tack. | 01/01/70 00:00 | |
| you have created just about the worst co | 01/01/70 00:00 | |
| Worst conditions. | 01/01/70 00:00 | |
| oscilloscope | 01/01/70 00:00 | |
| oscilloscope | 01/01/70 00:00 | |
| To verify that your programming ("burnin | 01/01/70 00:00 | |
| verifying. | 01/01/70 00:00 | |
| Without a scope you are kind of stuck, s | 01/01/70 00:00 | |
Success. | 01/01/70 00:00 | |
| back to the roots | 01/01/70 00:00 | |
| Success. | 01/01/70 00:00 | |
| To Mike! | 01/01/70 00:00 | |
| Hello Mehdi | 01/01/70 00:00 | |
| Or... | 01/01/70 00:00 | |
| this is a bootleg, use the original | 01/01/70 00:00 | |
| i2cbits | 01/01/70 00:00 | |
| you may want to go here | 01/01/70 00:00 | |
| Clock width is only 2 uSec in IIC_ASM ex | 01/01/70 00:00 |