New HardwareTimer for STM32 5.7.0 (MarlinFirmware#15655)

.travis.yml

@@ -25,35 +25,34 @@ env:
   - TEST_PLATFORM="sanguino_atmega1284p"
   - TEST_PLATFORM="sanguino_atmega644p"
 
-  # Broken Extended STM32 Environments
-  #- TEST_PLATFORM="ARMED"
-  #- TEST_PLATFORM="BIGTREE_BTT002"
-  #- TEST_PLATFORM="BIGTREE_SKR_PRO"
-
   # Extended STM32 Environments
   - TEST_PLATFORM="STM32F103RC_bigtree"
+  - TEST_PLATFORM="STM32F103RC_bigtree_USB"
+  - TEST_PLATFORM="STM32F103RC_fysetc"
   - TEST_PLATFORM="jgaurora_a5s_a1"
   - TEST_PLATFORM="STM32F103VE_longer"
   - TEST_PLATFORM="STM32F407VE_black"
+  - TEST_PLATFORM="BIGTREE_SKR_PRO"
   - TEST_PLATFORM="mks_robin"
+  - TEST_PLATFORM="ARMED"
+
+  # STM32 with non-STM framework. both broken for now. they should use HAL_STM32 which is working.
+  #- TEST_PLATFORM="STM32F4"
+  #- TEST_PLATFORM="STM32F7"
 
   # Put lengthy tests last
   - TEST_PLATFORM="LPC1768"
   - TEST_PLATFORM="LPC1769"
 
   # Non-working environment tests
+  #- TEST_PLATFORM="BIGTREE_BTT002" this board isn't released yet. we need pinout to be sure about what we do
   #- TEST_PLATFORM="at90usb1286_cdc"
   #- TEST_PLATFORM="at90usb1286_dfu"
   #- TEST_PLATFORM="STM32F103CB_malyan"
   #- TEST_PLATFORM="mks_robin_lite"
   #- TEST_PLATFORM="mks_robin_mini"
   #- TEST_PLATFORM="mks_robin_nano"
   #- TEST_PLATFORM="SAMD51_grandcentral_m4"
-  #- TEST_PLATFORM="STM32F103RC_bigtree"
-  #- TEST_PLATFORM="STM32F103RC_bigtree_USB"
-  #- TEST_PLATFORM="STM32F103RC_fysetc"
-  #- TEST_PLATFORM="STM32F4"
-  #- TEST_PLATFORM="STM32F7"
 
 before_install:
   #

Marlin/src/HAL/HAL_ESP32/timers.h

@@ -51,8 +51,8 @@ typedef uint64_t hal_timer_t;
   #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs // wrong would be 0.25
 #else
   #define STEPPER_TIMER_PRESCALE     40
-  #define STEPPER_TIMER_RATE         (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE) // frequency of stepper timer, 2MHz
-  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)          // stepper timer ticks per µs
+  #define STEPPER_TIMER_RATE         ((HAL_TIMER_RATE) / (STEPPER_TIMER_PRESCALE)) // frequency of stepper timer, 2MHz
+  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)              // stepper timer ticks per µs
 #endif
 
 #define STEP_TIMER_MIN_INTERVAL   8 // minimum time in µs between stepper interrupts

Marlin/src/HAL/HAL_SAMD51/timers.cpp

@@ -99,7 +99,7 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
   SYNC(tc->COUNT32.SYNCBUSY.bit.CTRLB);
 
   // Set compare value
-  tc->COUNT32.COUNT.reg = tc->COUNT32.CC[0].reg = HAL_TIMER_RATE / frequency;
+  tc->COUNT32.COUNT.reg = tc->COUNT32.CC[0].reg = (HAL_TIMER_RATE) / frequency;
 
   // And start timer
   tc->COUNT32.CTRLA.bit.ENABLE = true;

Marlin/src/HAL/HAL_STM32/HAL.cpp

@@ -28,6 +28,16 @@
 #include "../../inc/MarlinConfig.h"
 #include "../shared/Delay.h"
 
+#if (__cplusplus == 201703L) && defined(__has_include)
+  #define HAS_SWSERIAL __has_include(<SoftwareSerial.h>)
+#else
+  #define HAS_SWSERIAL HAS_TMC220x
+#endif
+
+#if HAS_SWSERIAL
+  #include "SoftwareSerial.h"
+#endif  
+
 #if ENABLED(SRAM_EEPROM_EMULATION)
   #if STM32F7xx
     #include "stm32f7xx_ll_pwr.h"
@@ -82,6 +92,10 @@ void HAL_init() {
   // Wait until backup regulator is initialized
   while (!LL_PWR_IsActiveFlag_BRR());
   #endif // EEPROM_EMULATED_SRAM
+
+  #if HAS_SWSERIAL
+    SoftwareSerial::setInterruptPriority(SWSERIAL_TIMER_IRQ_PRIO, 0);
+  #endif
 }
 
 void HAL_clear_reset_source() { __HAL_RCC_CLEAR_RESET_FLAGS(); }