TickTock said:Picking up a few more CANary owners. Kudos to robot256 for reading all 62 pages but I figured it probably isn't reasonable to expect everyone to do so. So I started a user guide page on the wiki. Pretty crude right now but will embellish along and along.
http://mbed.org/users/TickTock/code/CANary/wiki/guide
Ok. If it is really only 0.1-0.3 then it might be OK as long as the host supply is nominal or higher. I am concerned because we have seen many thumbdrives that have difficulty keeping up with the datarate even with a full 5V supply so giving them a degraded supply isn't going to help. On the application board (you do mean the mbed NXP LPC1768, right?), they don't use them this way. They are connected between the 5V and the 3.3V linear regulators where the drop doesn't matter - the slave still gets full 5V. You are using them differently in a way that will degrade the slave supply. Or are you talking about a different application board?robot256 said:That part is actually a Schottky diode with a max drop of 0.37V, but at the low currents we care about the drop will be more like 0.1V. If it works on the application board then it should work for us.
Ah. That explains it.robot256 said:I mean this board, which has a socket for the same mbed module we are using: https://www.sparkfun.com/products/11695" onclick="window.open(this.href);return false;
The tutorial on using a USB flash drive has in big red letters to close the switches to connect the 15k pulldowns. I assume this means they are important.garygid said:Do the 15k pull-down resistors have anything to do
with using the USB port in Host or Device mode?
Yeah, the NXP1768 user manual also indicates they are required. The mbed provides the 33Ohm resistors and the pullup to allow use as a device but not the 15K's required for use as host. It also provides a load switch (FPF2123 - similar to the LM3526-L except enable is inverted) but has the enable hard-tied to VBUS so power is automatically provided to the VU pin when the mbed is connected to a PC. USB_PPWR (p1.19 - pin 33) is left unconnected on the mbed.robot256 said:The tutorial on using a USB flash drive has in big red letters to close the switches to connect the 15k pulldowns. I assume this means they are important.garygid said:Do the 15k pull-down resistors have anything to do
with using the USB port in Host or Device mode?
Turbo3 said:(I fixed my problem)
For my application I found I needed to disable some of the code. Nothing a normal user would encounter.TickTock said:What problem?
Turbo3 said:(I fixed my problem)
Turbo3 said:Nothing a normal user would encounter.
That would be awesome! The last thing on my original To-Do list is to figure out how to invoke and stop charging so I can start a 50% charge when I get home and let it finish in the morning.JeremyW said:I want the coolant and heater loop temperatures, and to see what it takes to invoke remote car wings commands.
I second that!!!TickTock said:That would be awesome! The last thing on my original To-Do list is to figure out how to invoke and stop charging so I can start a 50% charge when I get home and let it finish in the morning.JeremyW said:I want the coolant and heater loop temperatures, and to see what it takes to invoke remote car wings commands.
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