STM32L151C8 pma_write and pma_read BUG?

[covsh]

STM32L151C8 pma_write and pma_read BUG?

[dmitrystu]

Looks like it's fixed. Could you please do an independent test then i will merge this branch.

[dmitrystu]

OMG. Some things from ST make me crazy. Is this fix works for the multiple endpoints? I have no L151 in my lab, so I can't do a test.

[covsh]

OMG. Some things from ST make me crazy. Is this fix works for the multiple endpoints? I have no L151 in my lab, so I can't do a test.

I have Control Endpoint and 2 Bulk IN endpoints. Fix works well.

[dmitrystu]

Could you please test with the assembly version of the driver? Looks like it's correct for L151.

libusb_stm32/src/usbd_stm32l100_devfs_asm.S

Line 419 in 0a0a24f

adds r5, #4

and

libusb_stm32/src/usbd_stm32l100_devfs_asm.S

Line 499 in 0a0a24f

adds r5, #4

For L100 it works well in both cases. Perhaps it's a cause that i didn't discover this bug.

[covsh]

Just testing assembler version. pma_write and pma_read works well.
But my BULK endpoint didn't works.

Endpoints configure as:

usbd_ep_config(dev, 0x02, USB_EPTYPE_BULK /*| USB_EPTYPE_DBLBUF*/, 0x40);
usbd_ep_config(dev, 0x05, USB_EPTYPE_BULK /*| USB_EPTYPE_DBLBUF*/, 0x40);
usbd_reg_endpoint(dev, 0x02, txd1_ep_cb);
usbd_reg_endpoint(dev, 0x05, txd2_ep_cb);

And i have STALL packet on USB analyzer on both endpoints.

Seems with asm driver endpoint didn't config correctly (C version works well)

I not familiar with asm, its hard to debug this for me

[dmitrystu]

Confirmed for large (>=64 bytes) endpoints.

[covsh]

Test done. Asm and C version works well. Thanks for fixing.