VESC Firmware

Hello,

I am having trouble updating my original VESC 4.12 to a newer Firmware version (desired version is 3.31).

In short: Updating the firmware over the VESC-tool or through flashing the newer firmware directly on the chip with an st-link, results in no led blinking and the VESC not being recognized as USB-device and consequently not being able to connect with VESC-tool -> basically bricked.

Information soon

Just wanted to point out that this fork branch has Continuous Integration set up for the vesc firmware, along some extra info in the README

https://travis-ci.com/paltatech/bldc

https://github.com/paltatech/bldc/blob/powerdesigns-dev/README.md

Hopefully we'll see this as part of the mainstream repo.

Unit testing and code coverage would be awesome, maybe someday...

 I have tow question,Need to consult

1：switch (comm_step) {
      case 1: curr_samp_volt = (1 << 0) || (1 << 2); break; 
      case 2: curr_samp_volt = (1 << 1) || (1 << 2); break;
      case 3: curr_samp_volt = (1 << 1) || (1 << 2); break;
      case 4: curr_samp_volt = (1 << 0) || (1 << 1); break;
      case 5: curr_samp_volt = (1 << 0) || (1 << 1); break;
      case 6: curr_samp_volt = (1 << 0) || (1 << 2); break;

Hello,

I'm new to the VESC and having fun messing with it, but it seems many of the things I want it to do with ADC inputs I'm having to create external analog circuitry.

I'm sure that changing the firmware / code could create the same effects for me, but I'm completely lost as to how to make these updates.

Specifically: I want to have it look at ADC inputs and do certain if / then / else with it. I'll figure out the coding later.

This has been a headache. I just intended to play with the VESC and ended up putting 48 firmware on it. I blew my drv chip but was able to replace it, but it still has the wrong firmware and nothing I do changes that. I went ahead and ordered a ST-link v2. Is it possible to fix firmware without it? If I do need it how do I use it? I have not been able to find a pinout diagram and want to make sure im using the most current bootloader.

Hello 

i'm new in the vesc world, and first of all i want to thank benjamin for all his work. vesc is the best solution for a brushless dc motor. second, sorry for my english. i normely speak german.

there are a lot of discussion about foc, bldc, sensored and sensorless motors. all of them has their advantages and disadvantages. foc mode have great torque and is quieter on the start but louses his benefits at high erpm because of switchinglosses (speciali on the vesc 4.xx because of the limitation of 20khz for the mosfet).

// Apply current limits
// TODO: Consider D axis current for the input current as well.
const float mod_q = m_motor_state.mod_q;
if (mod_q > 0.001) {
utils_truncate_number(&iq_set_tmp, m_conf->lo_in_current_min / mod_q, m_conf->lo_in_current_max / mod_q);
} else if (mod_q utils_truncate_number(&iq_set_tmp, m_conf->lo_in_current_max / mod_q, m_conf->lo_in_current_min / mod_q);
}

Hello,

I have been compiling the VESC firmware and have successfully gotten it operating in BLDC mode. However when I try to use the FOC functionality, I keep getting an IACCVIOL hard fault (Instruction access violation). It is reproduced by sending a brake current (any brake current) to the motor, or attempting to run the inductance measurement. 

what is maximum eRPM for the VESC?