Hi,

I had developed small system using a 8052 core processor, a sensor and an I2C memory. I am collecting some data from a sensor and I am logging it into an i2c memory module. The system has an cooperative multitasking miniOS with two tasks running in alternance. Additionally because I need a timebase, I am using timer 2 interrupts to update periodically a global variable which holds the total number of ticks. Initially I was writting in memory byte by byte using random access and all was working just fine.

After the system got a little bit mature I had decided it to move to page write, using a memory pool/buffer which periodically is dumped into the memory. From this moment I had started to notice an odd behaviour: sometimes the data was lost and nothing or incoerrent data was saved to the i2c memory.

Now what I want is to get it is a pertinent advice from a more experienced fellow. My guess is that because I am writting 256 bytes in a memory page write the chance to intersect with a timer 2 interrupt grew up significantly and this is causing this strange behaviour.

What do you think?

Sandu