MichelM
Member level 1
- Joined
- Aug 26, 2004
- Messages
- 40
- Helped
- 8
- Reputation
- 16
- Reaction score
- 5
- Trophy points
- 1,288
- Location
- Grenoble,France
- Activity points
- 308
Hello
I have to design a project , a laser controller. The controller will have a trigger mode to pulse the laser about 100kHz. At first, I thought to use the pwm peripheric of a microcontroller. The problem is the dutyy cycle which has to be adjust with a photodiode. ( the diode current will be stop as soon as the laser pulse is emitted).
So maybe that le logic circuit driving the current amplifier could be made with a cpld/fpga. The issue is I'm a newbie foor this technology.
so I have a few questions :
- CPLD or FPGA?
- How evaluate the size (number of cells ) needed for a project ?
- Do you know a free or low cost developpment sytem ( software and hardare ) ? this can be a constraint to chose the maker.
- I don't need a lot of IO, and I prefer a hand soldering chip.
thanks
I have to design a project , a laser controller. The controller will have a trigger mode to pulse the laser about 100kHz. At first, I thought to use the pwm peripheric of a microcontroller. The problem is the dutyy cycle which has to be adjust with a photodiode. ( the diode current will be stop as soon as the laser pulse is emitted).
So maybe that le logic circuit driving the current amplifier could be made with a cpld/fpga. The issue is I'm a newbie foor this technology.
so I have a few questions :
- CPLD or FPGA?
- How evaluate the size (number of cells ) needed for a project ?
- Do you know a free or low cost developpment sytem ( software and hardare ) ? this can be a constraint to chose the maker.
- I don't need a lot of IO, and I prefer a hand soldering chip.
thanks