Chip support package for Cypress EZ-USB FX2 series microcontrollers
License: BSD Zero Clause License
libfx2 is a chip support package for Cypress EZ-USB FX2 series microcontrollers.
See the complete documentation for details.
Somehow the build failed with latest svn version of sdcc.
Tested under Ubuntu 20.04.
mcuee@UbuntuSwift3:~/build/cyusb/libfx2$ make -C firmware
...
...
sdcc -mmcs51 --std-sdcc99 -Iinclude --model-huge -c -o build/huge/usbdfu.rel usbdfu.c
include/fx2ints.h:43: warning 283: function declarator with no prototype
include/fx2ints.h:44: warning 283: function declarator with no prototype
include/fx2ints.h:45: warning 283: function declarator with no prototype
include/fx2ints.h:46: warning 283: function declarator with no prototype
include/fx2ints.h:47: warning 283: function declarator with no prototype
include/fx2ints.h:48: warning 283: function declarator with no prototype
include/fx2ints.h:49: warning 283: function declarator with no prototype
include/fx2ints.h:50: warning 283: function declarator with no prototype
include/fx2ints.h:51: warning 283: function declarator with no prototype
include/fx2ints.h:52: warning 283: function declarator with no prototype
include/fx2ints.h:53: warning 283: function declarator with no prototype
include/fx2ints.h:54: warning 283: function declarator with no prototype
include/fx2ints.h:55: warning 283: function declarator with no prototype
include/fx2ints.h:77: warning 283: function declarator with no prototype
include/fx2ints.h:78: warning 283: function declarator with no prototype
include/fx2ints.h:79: warning 283: function declarator with no prototype
include/fx2ints.h:80: warning 283: function declarator with no prototype
include/fx2ints.h:81: warning 283: function declarator with no prototype
include/fx2ints.h:82: warning 283: function declarator with no prototype
include/fx2ints.h:83: warning 283: function declarator with no prototype
include/fx2ints.h:84: warning 283: function declarator with no prototype
include/fx2ints.h:85: warning 283: function declarator with no prototype
include/fx2ints.h:86: warning 283: function declarator with no prototype
include/fx2ints.h:87: warning 283: function declarator with no prototype
include/fx2ints.h:88: warning 283: function declarator with no prototype
include/fx2ints.h:89: warning 283: function declarator with no prototype
include/fx2ints.h:90: warning 283: function declarator with no prototype
include/fx2ints.h:91: warning 283: function declarator with no prototype
include/fx2ints.h:92: warning 283: function declarator with no prototype
include/fx2ints.h:93: warning 283: function declarator with no prototype
include/fx2ints.h:94: warning 283: function declarator with no prototype
include/fx2ints.h:95: warning 283: function declarator with no prototype
include/fx2ints.h:96: warning 283: function declarator with no prototype
include/fx2ints.h:97: warning 283: function declarator with no prototype
include/fx2ints.h:98: warning 283: function declarator with no prototype
include/fx2ints.h:99: warning 283: function declarator with no prototype
include/fx2ints.h:100: warning 283: function declarator with no prototype
include/fx2ints.h:101: warning 283: function declarator with no prototype
include/fx2ints.h:102: warning 283: function declarator with no prototype
include/fx2ints.h:103: warning 283: function declarator with no prototype
include/fx2ints.h:126: warning 283: function declarator with no prototype
include/fx2ints.h:127: warning 283: function declarator with no prototype
include/fx2ints.h:128: warning 283: function declarator with no prototype
include/fx2ints.h:129: warning 283: function declarator with no prototype
include/fx2ints.h:130: warning 283: function declarator with no prototype
include/fx2ints.h:131: warning 283: function declarator with no prototype
include/fx2ints.h:132: warning 283: function declarator with no prototype
include/fx2ints.h:133: warning 283: function declarator with no prototype
include/fx2ints.h:134: warning 283: function declarator with no prototype
include/fx2ints.h:135: warning 283: function declarator with no prototype
include/fx2ints.h:136: warning 283: function declarator with no prototype
include/fx2ints.h:137: warning 283: function declarator with no prototype
include/fx2ints.h:138: warning 283: function declarator with no prototype
include/fx2ints.h:139: warning 283: function declarator with no prototype
include/fx2usb.h:186: warning 283: function declarator with no prototype
include/fx2usbdfu.h:60: warning 283: function declarator with no prototype
sdar rc lib/huge/fx2dfu.lib build/huge/usbdfu.rel
sdcc -mmcs51 --std-sdcc99 -Iinclude --model-huge -c -o build/huge/uf2scsi.rel uf2scsi.c
sdcc -mmcs51 --std-sdcc99 -Iinclude --model-huge -c -o build/huge/uf2fat.rel uf2fat.c
sdar rc lib/huge/fx2uf2.lib build/huge/uf2scsi.rel build/huge/uf2fat.rel
make[1]: Leaving directory '/home/mcuee/build/cyusb/libfx2/firmware/library'
make[1]: Entering directory '/home/mcuee/build/cyusb/libfx2/firmware/boot-cypress'
sdcc -mmcs51 --iram-size 0x100 --code-size 0x3e00 --xram-loc 0x3e00 --xram-size 0x0200 --std-sdcc99 --model-small -I../library/include -L../library/lib/small -Wp,-MQ,build/main.rel,-MMD,build/main.d -c -o build/main.rel main.c
sdcpp: warning: '-x c' after last input file has no effect
cc1: fatal error: build/main.d: No such file or directory
compilation terminated.
at 1: warning 190: ISO C forbids an empty translation unit
subprocess error 256
make[1]: *** [../library/fx2rules.mk:39: build/main.rel] Error 1
make[1]: Leaving directory '/home/mcuee/build/cyusb/libfx2/firmware/boot-cypress'
make: *** [Makefile:4: all] Error 2
make: Leaving directory '/home/mcuee/build/cyusb/libfx2/firmware'
mcuee@UbuntuSwift3:~/build/cyusb/libfx2$ sdcc -v
SDCC : mcs51/z80/z180/r2k/r2ka/r3ka/sm83/tlcs90/ez80_z80/z80n/ds390/pic16/pic14/TININative/ds400/hc08/s08/stm8/pdk13/pdk14/pdk15/mos6502 TD- 4.2.14 #14088 (Linux)
published under GNU General Public License (GPL)
I believe handle_usb_request() defined in defusbsetup.c is meant to be handle_usb_setup() instead.
- void handle_usb_request(__xdata struct usb_req_setup *request) {
+ void handle_usb_setup(__xdata struct usb_req_setup *request) {The hex file is uploaded and the 8051 comes out of reset, but the FX2 doesn't re-enumerate.
Fix: change usb_init(/*disconnect=*/false); to usb_init(/*disconnect=*/true); in this line:
libfx2/firmware/boot-cypress/main.c
Line 199 in 60fc41d
Hello,
First, thanks for making this API available. It helped a lot.
I have an old DVB-T dongle derived from the FX2LP connected to an i2c device.
To know what address it is using, I'm using the following code:
#include <fx2i2c.h>
//#include <fx2regs.h>
#include <fx2lib.h>
//#include <stdio.h>
// Scratchpad is from 0xe000 to 0xe1fff (cf TRM sec 5.3 / EZ USB FX2LP p11)
int main() {
uint8_t i;
bool r;
for (i=0;i<128;i++) {
r=i2c_start(i);
if (r)
scratch[i]=i;
else
scratch[i]=0x00;
i2c_stop();
}
while (1);
}
The problem is that the dump shows 00 for every element.
Any hint ?
--
Fabien
I tried to start the cdc-acm example on Numato Opsis board. It results in the device being enumerated correctly but when I try to read or write to to serial at /dev/ttyACM0 the kernel disables the device:
[264968.588502] usb usb1-port6: disabled by hub (EMI?), re-enabling...
It then gets enumerated correctly again, e.g.
[264098.323234] usb 1-6: USB disconnect, device number 36
[264098.580121] usb 1-6: new high-speed USB device number 37 using xhci_hcd
[264098.721757] usb 1-6: New USB device found, idVendor=04b4, idProduct=8613, bcdDevice= 0.00
[264098.721764] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[264098.721767] usb 1-6: Product: FX2 series serial interface example
[264098.721771] usb 1-6: Manufacturer: [email protected]
[264098.725829] cdc_acm 1-6:1.0: ttyACM0: USB ACM device
[264968.588502] usb usb1-port6: disabled by hub (EMI?), re-enabling...
[264968.588504] usb 1-6: USB disconnect, device number 37
[264968.845672] usb 1-6: new high-speed USB device number 38 using xhci_hcd
[264968.987283] usb 1-6: New USB device found, idVendor=04b4, idProduct=8613, bcdDevice= 0.00
[264968.987287] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[264968.987289] usb 1-6: Product: FX2 series serial interface example
[264968.987291] usb 1-6: Manufacturer: [email protected]
[264968.989257] cdc_acm 1-6:1.0: ttyACM0: USB ACM device
[265520.727085] usb usb1-port6: disabled by hub (EMI?), re-enabling...
I wonder if you have any idea why this would happen. It seems like the device is sending
something when it shouldn't? However I haven't been able to find out which transfer is causing the problem.
It will help to build network adpater and usb-ethernet or usb-wifi bridges with the help of this library.
I am trying to write large responses to a USB control read. The data is read in chunks of 32 bytes from a i2c device and feeds EP0BUF.
I had a look at something similar in the Glasgow firmware and wrote this:
uint8_t USB_REQ_ATECC_READ = 0x20;
if((req->bmRequestType == (USB_RECIP_DEVICE|USB_TYPE_VENDOR|USB_DIR_IN)) &&
req->bRequest == USB_REQ_ATECC_READ) {
uint8_t arg_slot = req->wValue;
uint8_t arg_offset = req->wIndex;
uint16_t arg_len = req->wLength;
pending_setup = false;
while(arg_len > 0) {
uint8_t chunk_len = arg_len < 32 ? arg_len : 32;
while(EP0CS & _BUSY);
memset(EP0BUF, 0xFF, chunk_len); // whatever
SETUP_EP0_BUF(chunk_len);
arg_len -= chunk_len;
arg_offset += 1;
}
return;
}I removed the i2c-related code so I just expect the FX2 to send garbage data. However, when I request more than 32 bytes (e.g. 33), I always receive 32 bytes:
data = await device.control_read(usb1.REQUEST_TYPE_VENDOR, REQ_ATECC_READ, 0, 0, 33)
print(len(data)) # == 32In other cases, an usb1.USBErrorPipe: LIBUSB_ERROR_PIPE [-9] exception is thrown.
Sorry for opening an issue here as this is probably not an issue with the libfx2 implementation.
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