John Robbins

Activity

Reply to Eve display and mbed. - Hi Michel and Dirk, Thank you both so much - FT800_touch_track works like a charm …
John Robbins - 28 Feb 2014
Reply to Eve display and mbed. - Hi Michel, Thanks again. It was Peter Drescher's FT800_touch_track example that I was using but …
John Robbins - 27 Feb 2014
Reply to Eve display and mbed. - Hi Michel, Thanks for the help - I will try your code later today on …
John Robbins - 27 Feb 2014
New topic Eve display and mbed. - Hi, I have not been able to get the FT800-touch-track project to work, using a …
John Robbins - 26 Feb 2014
Reply to Measuring 1usec pulse width with interrupts - You could use the capture feature of the timers. I have used this to measure …
John Robbins - 11 May 2012
Reply to EINT1 and EINT2 - The laser is a 1mw red (630 nm?) laser pulsed by a fast discrete circuit. …
John Robbins - 24 Mar 2010
Reply to EINT1 and EINT2 - Here is the code I used for delays in the nsecs to microsecs range. I …
John Robbins - 23 Mar 2010
Reply to EINT1 and EINT2 -
John Robbins - 23 Mar 2010
Reply to EINT1 and EINT2 - Hi Simon, Thanks for the hint. I had considered the capture inputs earlier. The application …
John Robbins - 18 Mar 2010
Reply to EINT1 and EINT2 - Hi, I am just about ready to give up on trying to use the external …
John Robbins - 18 Mar 2010
Reply to EINT1 and EINT2 - Thanks for the code sample - I will try it shortly. In Yiu's book, The …
John Robbins - 18 Mar 2010
New topic EINT1 and EINT2: I have attached fine wires to pins 51 and 52 and connected them to my …
John Robbins - 18 Mar 2010
Reply to Why is the mbed so slow? - The complete code is #include "mbed.h" DigitalOut led4(LED4); DigitalOut led3(LED3); DigitalOut led2(LED2); DigitalOut led1(LED1); #define …
John Robbins - 16 Mar 2010
Reply to Input Interrupts - So near but so far! I looked at the board again under a magnifier and …
John Robbins - 15 Mar 2010
Reply to Input Interrupts - Could the same thing be done for EINT2 as I need two external interrupt sources …
John Robbins - 15 Mar 2010
New topic Interrupts again: I have got my initial attempt at measuring short time durations between external start/stop signals …
John Robbins - 14 Mar 2010
Reply to Why is the mbed so slow? - I ran the simple code on my mbed as follows LPC_GPIO2->FIODIR |= TEST_1; while(1){ LPC_GPIO2->FIOSET …
John Robbins - 12 Mar 2010
Reply to Interrupt response time - It is almost as if the interrupts are being clocked before being read by the …
John Robbins - 11 Mar 2010
Reply to Interrupt response time - Thanks for the code sample, most helpful but I _really_ now don't understand the delay …
John Robbins - 11 Mar 2010
Reply to Interrupt response time - Thanks again for your patience. Looking at the circuit and the board itself, it does …
John Robbins - 11 Mar 2010