tia_design
Advanced Member level 4
Hi, all,
The symptom of my digital part is that:
Chip designed voltage is from 2.5 to 5.5 Volt. The real chip works great at Vdd=3V, but when Vdd=5V, one routine is stucked. If I reduce the external clock from 14MHz to 1MHz, then it works fine. Chip works at room temperature, but same routint is stucked at high temperature, like 100C. Is that because of timing violation. The digital block is a rectangular block, three sides of this block have thick power line, the fourth side is open, will that cause some power drop problem?
Thanks for any comments.
The symptom of my digital part is that:
Chip designed voltage is from 2.5 to 5.5 Volt. The real chip works great at Vdd=3V, but when Vdd=5V, one routine is stucked. If I reduce the external clock from 14MHz to 1MHz, then it works fine. Chip works at room temperature, but same routint is stucked at high temperature, like 100C. Is that because of timing violation. The digital block is a rectangular block, three sides of this block have thick power line, the fourth side is open, will that cause some power drop problem?
Thanks for any comments.