emanuelpaz / 16fusb Goto Github PK
View Code? Open in Web Editor NEWThe 16FUSB is a software implementation of the USB low-speed for PIC16F628/628A microcontroller.
Home Page: https://pt.scribd.com/doc/235856382/16FUSB-Project-1-2
The 16FUSB is a software implementation of the USB low-speed for PIC16F628/628A microcontroller.
Home Page: https://pt.scribd.com/doc/235856382/16FUSB-Project-1-2
I realized that some ports aren't recognizing the device in enumeration
process. Using a oscilloscope i saw that timing between host's requests were
much faster than other ports. However, this faster interval timing still
correctly according to USB specification.
Original issue reported on code.google.com by efspaz
on 15 Apr 2012 at 5:42
What steps will reproduce the problem?
1. gpasm -c usb.asm # -c param to produce object file
2. Compiler outputs " Segment fault (core dump)" error
3.
What is the expected output? What do you see instead?
expected corect usb.o
What version of the product are you using? On what operating system?
16Fusb.dio.hid.1.2 under ubuntu linux 12.04 LTS
Please provide any additional information below.
Original issue reported on code.google.com by [email protected]
on 29 Jul 2014 at 7:25
Attachments:
What steps will reproduce the problem?
1. Use standart firmware 16USB-dio-1.2.hex . "ProcessOut" procedure is empty.
Even more, you can commented ;call VendorRequest in usb.asm;
2. On host side, create new function:
int writeByteArray(int byteToSend, char buffer[]) {
return usb_control_msg(
h16FUsb,
0x40,
0x01,
0x0001,
byteToSend,
buffer,
8,
1000
);
}
3. Send random data with help writeByteArray(1,randombuffer) many times. My
data is control messages to YM2149f chip, but its not important
What is the expected output? What do you see instead?
After several successful packages PIC halted (or looped, or stoped) and don't
send anymore ACK to host, don't anymore accept control frames.
What version of the product are you using? On what operating system?
I am using PIC16F628A, default firmware 16USB-dio-1.2.hex without modification.
PIC clocked from external clock generator 24 Mhz.
Please provide any additional information below.
So i am install USBPcap sniffer and create .pcap file that can be viewed using
Wireshark. PIC is out control after 5480 frame. .pcap file in attachment
Original issue reported on code.google.com by [email protected]
on 10 Jan 2015 at 7:19
Attachments:
Project structure must be changed to make core and functionalities code more
decoupled.
The new structure must enable many functionalities to use the same core
objects, in a separated folder. Each functionality should have its own MPLAB
project and/or its own Makefile for GNU Make.
Original issue reported on code.google.com by efspaz
on 15 Apr 2012 at 7:04
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