20-06-2020, 10:19 AM
No one could argue with any of that.
So far in the FPGA I am using 55% of the logic elements and 24% memory
In the microcontroller less than 9% used of both program memory and RAM. Not using any of the EEPROM yet but I will be.
The 2.5 V, 1.2 V and 1.8 V regulators are all 300 mA devices . The 2.5 V and 1.2V regulators supply only the FPGA and the 1.8V only the video decoder.
All IO's are 3.3 V.
The 3.3 V reg is a 500 mA device and supplies everything apart from the modulators which are supplied from the 5V rail.
The 7805 does most of the grunt work dropping the incoming supply down to 5V.
The 7805 would normally have a heat sink but currently hasn't as I am just running it from 7.5 V.
Frank
So far in the FPGA I am using 55% of the logic elements and 24% memory
In the microcontroller less than 9% used of both program memory and RAM. Not using any of the EEPROM yet but I will be.
The 2.5 V, 1.2 V and 1.8 V regulators are all 300 mA devices . The 2.5 V and 1.2V regulators supply only the FPGA and the 1.8V only the video decoder.
All IO's are 3.3 V.
The 3.3 V reg is a 500 mA device and supplies everything apart from the modulators which are supplied from the 5V rail.
The 7805 does most of the grunt work dropping the incoming supply down to 5V.
The 7805 would normally have a heat sink but currently hasn't as I am just running it from 7.5 V.
Frank
