Hi support

[emanuel]

If I use the capture an compare, is there any incompatibility using at the same time the UART or USART?
Thank in advance

[ranko.rankovic]

Hello emanuel,

We need little more information about your development system and MCU to be able to help.

[emanuel]

This my university's proyect is an engine test bench.
So I need use A/D to read preasure and tempertaure of the engine then I2C for temperature and humidity, force from a streengauge, then Input capture for velocity RPM after that I send all data trhoug rs232 to pc, this aquision module is a salve of the PC program.
The program will show the power curves and the corrected curves.
The Micro is a 18F4520
Ranko do you have any example how to use the input capture to read velocity?

Iknow you need start a counter when the first pulse happend and when the other pulse arrive you stop the counter an do the diference an that is the period

[piort]

hi,
you will nice idea and code there : http://www.mikroe.com/eng/projects/index/

ADC, temp and humidity sensor and tach project....

HTH a bit

[ranko.rankovic]

Hello,

There is no combined example for all your needs, for RPM you could look this code:
http://www.mikroe.com/forum/viewtopic.p ... 71#p127371

This MCU is able to simultaneously work with all data you need, you should just pay attention not to use same pins for more then one input/output.

You should consult Datasheet for PIC18F2420/2520/4420/4520 for more info about pin layout of current chip.

Hope this helped.

Best regards.