Fixed issues with support the STM32G031xx series

Author: AGlass0fMilk

targets/TARGET_STM/TARGET_STM32G0/TARGET_STM32G031xx/TARGET_NUCLEO_G031K8/PeripheralNames.h

@@ -25,15 +25,9 @@ typedef enum {
     ADC_1 = (int)ADC1_BASE
 } ADCName;
 
-typedef enum {
-    DAC_1 = (int)DAC_BASE
-} DACName;
-
 typedef enum {
     UART_1   = (int)USART1_BASE,
     UART_2   = (int)USART2_BASE,
-    UART_3   = (int)USART3_BASE,
-    UART_4   = (int)USART4_BASE,
     LPUART_1 = (int)LPUART1_BASE
 } UARTName;
 
@@ -53,7 +47,6 @@ typedef enum {
     PWM_2  = (int)TIM2_BASE,
     PWM_3  = (int)TIM3_BASE,
     PWM_14 = (int)TIM14_BASE,
-    PWM_15 = (int)TIM15_BASE,
     PWM_16 = (int)TIM16_BASE,
     PWM_17 = (int)TIM17_BASE
 } PWMName;

targets/TARGET_STM/TARGET_STM32G0/serial_device.c

@@ -19,6 +19,11 @@
 
 #define UART_NUM (5)
 
+// Retarget this IRQn symbol for chips without USART3/4
+#if defined(STM32G031xx)
+#define USART3_4_LPUART1_IRQn LPUART1_IRQn
+#endif
+
 
 uint32_t serial_irq_ids[UART_NUM] = {0};
 UART_HandleTypeDef uart_handlers[UART_NUM];

targets/TARGET_STM/lp_ticker.c

@@ -112,7 +112,7 @@
 #define RCC_LPTIMCLKSOURCE_LSE    RCC_LPTIM1CLKSOURCE_LSE
 #define RCC_LPTIMCLKSOURCE_LSI    RCC_LPTIM1CLKSOURCE_LSI
 
-#if defined(STM32G0)
+#if defined(STM32G071xx)
 #define LPTIM_MST_IRQ             TIM6_DAC_LPTIM1_IRQn
 #else
 #define LPTIM_MST_IRQ             LPTIM1_IRQn

targets/targets.json

@@ -2784,9 +2784,7 @@
             "lpticker_delay_ticks": 0
         },
         "device_has_add": [
-            "ANALOGOUT",
             "SERIAL_ASYNCH",
-            "FLASH",
             "MPU"
         ],
         "detect_code": [