ChibiOS Free Embedded RTOS

Thank you avrhack for your source, while I see the difference, I have found the problem. SDU2 is not initiliazed, so this make problem to usb init.

@avrhack have you an example? I tring with branch 2.6.4 but with my dualcdc example I have an error.


usb 4-2.1: configuration #1 chosen from 1 choice
usb 4-2.1: can't set config #1, error -110


Single CDC is working without problem.
The error message is different from my ...

Hi Dmytro

Giovanni help me to resolve a problem with my project Dual USB CDC, with some patches. One patch has changed the usb_lld template and his test archictecture STM32. I replicated it on MIPS-PIC32. Could you submit in your repository?

diff --git a/os/hal/platforms/MIPS-PIC32MX/usb_lld&#46 ...

Hi Giovanni,

thank you so much, now it work very well.
2 shell is ok,
2 write command in both shell in the same instant is ok.
Tomorrow I submit your patch in usb_lld STM32 to Dmytro for MIPS-PIC32, and I post a better code example for Dual CDC,
I hope it is useful to someone.

In my test source code I have


sduObjectInit(&SDU1);
sduStart(&SDU1, &serUsbCfg);
sduObjectInit(&SDU2);
sduStart(&SDU2, &serUsbCfg2);

On SDU1 there is attached the shell. When I open the serial port with my program (minicom for linux or hyperterminal for windows) I expect a prompt of the shell ...

Hi Giovanni,

thank you for your update. I still have problems with flush data on first serial.
I tried to disable the second serial and all work very well.
Sure with your patch serial usb work in all custom implementations.

inca wrote:PS: I have no idea how the SPI_CR1_BR2 bit actually affects anything. The reference manual does not add any clarity to those seemingly random possible baud rates on the left hand column above.

I had a similar problem and I wrote this post

Hi Giovanni,

new patch

diff --git a/os/hal/include/serial_usb.h b/os/hal/include/serial_usb.h
index cdde81e..955a641 100644
--- a/os/hal/include/serial_usb.h
+++ b/os/hal/include/serial_usb.h
@@ -92,6 +92,7 @@ typedef struct {
* @brief USB driver to use&#46 ...

I tried to develop a patch, very expiremental. Works but is not perfect. I added a field (Endpoint Data) in SerialUSBDriver, so endpoint data is not static.
In my test I create 2 shell one for each serial, with different commands.
First serial has problem in receive data, I receveid data only after ...

I give me a first reply alone, I think I need to rewrite ./os/hal/src/serial_usb.c for manage multiple SerialUSBDriver. There are static definition of endpoints.