diff options
| author | Ha Thach <[email protected]> | 2019-12-12 10:17:40 +0700 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-12-12 10:17:40 +0700 |
| commit | 7a05b177a43b368fea1d60ca344fe4ae9902a432 (patch) | |
| tree | 15584aff15ab92715883b521aed6807d37266250 /src | |
| parent | 0b540fa55d7d84ca98a41ea6d44f46fb6c06ef03 (diff) | |
| parent | 9d96b6d66eab8a8dea44db1a2c346f667d22ce21 (diff) | |
Merge pull request #236 from jeremyherbert/master
Update dcd_stm32_fsdev.c with note about F042Fx remapping
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c b/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c index ec182960e..9e99ea1de 100644 --- a/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c +++ b/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c @@ -30,7 +30,7 @@ /********************************************** * This driver has been tested with the following MCUs: - * - F070, F072, L053 + * - F070, F072, L053, F042F6 * * It also should work with minimal changes for any ST MCU with an "USB A"/"PCD"/"HCD" peripheral. This * covers: @@ -44,6 +44,9 @@ * L4x2, L4x3 1024 byte buffer * * To use this driver, you must: + * - If you are using a device with crystal-less USB, set up the clock recovery system (CRS) + * - Remap pins to be D+/D- on devices that they are shared (for example: F042Fx) + * - This is different to the normal "alternate function" GPIO interface, needs to go through SYSCFG->CFGRx register * - Enable USB clock; Perhaps use __HAL_RCC_USB_CLK_ENABLE(); * - (Optionally configure GPIO HAL to tell it the USB driver is using the USB pins) * - call tusb_init(); |