modius13 Posted April 12, 2017 Report Posted April 12, 2017 Hey all, I finally got a Discovery board and managed to get the MIOS bootloader installed on it, but when I flipped the board around after connecting PA9 to the 5V pin, nothing. The computer won't even recognize that anything is plugged in. Is there anything I can do to fix this? I'm running Windows 7 64 if that makes any difference.
FantomXR Posted April 12, 2017 Report Posted April 12, 2017 Yes. You need to update the firmware of the STM. More informations you can get on ucapps on the STM core site.
modius13 Posted April 12, 2017 Author Report Posted April 12, 2017 I have updated the firmware to the latest on the STM website, still nothing. The board powers on and the LEDs blink in a manner suggesting that the bootloader is active, but the computer acts like nothing is connected to it. I am connecting via the CN1 USB connector.
latigid on Posted April 12, 2017 Report Posted April 12, 2017 CN1 is the miniUSB and is used to flash the bootloader via ST-LINK. It also supplies power to the target. CN5 is the microUSB for uploading MIOS apps. Its "Vbus" is not connected to the +5V required to supply the MCU, so you need a jumper cable or a Core PCB. The issue with the older firmware is an absence of a USB connection in CN1 would hold the main MCU in reset. This was rectified in the later firmware update for ST-LINK v2.
modius13 Posted April 13, 2017 Author Report Posted April 13, 2017 (edited) After some googling and such, I'm almost 95% sure that the problem is that I might be using a "power only" USB cable.... because I'm an ID-10-T.... >.< Edit: Yup, that was it... We're all good here. How are you? Edited April 13, 2017 by modius13
jaytee Posted April 17, 2017 Report Posted April 17, 2017 On 4/13/2017 at 10:10 AM, modius13 said: We're all good here. How are you? We're sending a squad up. 1
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