Add a "low pin count" variant of f730

The f730 devices don't all have a high-speed PHY, only the 144-pin and
larger packages have it.  Don't force the PHY for all 730 devices.

Author: BryanKadzban

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Updated `synopsys-usb-otg` dependency 0.2.3 -> 0.3
 - Updated `stm32-fmc` dependency 0.2.0 -> 0.3
 - Added Interruptable trait to Alternate mode pins
+- Added a "low pin count" variant of the f730 chip to the crate features: packages <144 pins don't include a high speed USB PHY
 
 ## [v0.7.0] - 2022-06-05
 

Cargo.toml

@@ -85,6 +85,7 @@ svd-f7x9 = ["stm32f7/stm32f7x9"]
 stm32f722 = ["svd-f7x2", "device-selected"]
 stm32f723 = ["svd-f7x3", "device-selected", "usb_hs_phy"]
 stm32f730 = ["svd-f730", "device-selected", "usb_hs_phy", "fmc"]
+stm32f730-lpc = ["svd-f730", "device-selected", "fmc"]
 stm32f732 = ["svd-f7x2", "device-selected"]
 stm32f733 = ["svd-f7x3", "device-selected", "usb_hs_phy"]
 stm32f745 = ["svd-f745", "device-selected", "gpioj", "gpiok", "fmc"]