Hi,

I am still using the LPC2138 . Now I have a problem with I2C. When I
try to send some bytes to an EEPROM device, the following happens:

- I2C start condition is made
- interrupt is generated
- I2C address is sent
- EEPROM device gives an ACK

And now nothing happens. If I look at the I2C bus state, the
microcontroller accepted the ACK. However, no new interrupt is given
due to a bus state change. The SI bit is high in the control register.

Should I continuously receive interrupts when the SI bit is set? If
so, maybe at a higher level the interrupt is turned off. Any other
ideas?

TIA,
Frank

On Jun 18, 4:27 pm, Frank van Eijkelenburg
<fei.technolut...@gmail.com> wrote:
It is working now. The main problem was in my generic interrupt
handling code. After changing the generic interrupt handling,
everything worked fine.

On Jun 26, 6:46 am, Frank van Eijkelenburg
<fei.technolut...@gmail.com> wrote:
Thanks for the follow-up. I assume it was a fairly simple software
bug, not some lurking inconsistency in the way the LPC2138 works?

Eric

emeb wrote:
Yes, it was a software bug in the code I use. The LPC2138 was working
correctly.

Frank