HAL for Re:ARM (LPC1768) architecture

2017-06-17 22:19:42 +01:00
parent f3e562e46e
commit 44b0c186a6
122 changed files with 67493 additions and 28 deletions
--- a/Marlin/src/HAL/HAL_LPC1768/main.cpp
+++ b/Marlin/src/HAL/HAL_LPC1768/main.cpp
@@ -0,0 +1,95 @@
+#ifdef TARGET_LPC1768
+
+// ---------------------
+// Userspace entry point
+// ---------------------
+extern void setup();
+extern void loop();
+
+extern "C" {
+#include <lpc17xx_gpio.h>
+}
+
+#include "usb/usb.h"
+#include "usb/usbcfg.h"
+#include "usb/usbhw.h"
+#include "usb/usbcore.h"
+#include "usb/cdc.h"
+#include "usb/cdcuser.h"
+#include "usb/mscuser.h"
+
+extern "C" {
+#include <debug_frmwrk.h>
+#include "chanfs/diskio.h"
+#include "chanfs/ff.h"
+}
+
+#include "fastio.h"
+#include "HAL_timers.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include "arduino.h"
+#include "serial.h"
+
+static __INLINE uint32_t SysTick_Config(uint32_t ticks) {
+  if (ticks > SysTick_LOAD_RELOAD_Msk)
+    return (1); /* Reload value impossible */
+
+  SysTick->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; /* set reload register */
+  NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(0, 0, 0)); /* set Priority for Cortex-M3 System Interrupts */
+  SysTick->VAL = 0; /* Load the SysTick Counter Value */
+  SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
+  SysTick_CTRL_TICKINT_Msk |
+  SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
+  return (0); /* Function successful */
+}
+
+extern "C" {
+extern void disk_timerproc(void);
+volatile uint32_t _millis;
+void SysTick_Handler(void) {
+  ++_millis;
+  disk_timerproc(); /* Disk timer process */
+}
+}
+
+// runs after clock init and before global static constructors
+extern "C" void SystemPostInit() {
+  _millis = 0;     // initialise the millisecond counter value;
+  SysTick_Config(SystemCoreClock / 1000);     // start millisecond global counter
+  GPIO_SetDir(4, 1UL << 28, 1);
+
+  for (int i = 0; i < 4; ++i) {
+    GPIO_SetValue(4, 1UL << 28);
+    delay(100);
+    GPIO_ClearValue(4, 1UL << 28);
+    delay(100);
+  }
+}
+
+extern uint32_t MSC_SD_Init(uint8_t pdrv);
+extern HalSerial usb_serial;
+int main(void) {
+
+  (void)MSC_SD_Init(0);
+  USB_Init();                               // USB Initialization
+  USB_Connect(TRUE);                        // USB Connect
+
+  volatile uint32_t usb_timeout = millis() + 2000;
+  while (!USB_Configuration && millis() < usb_timeout) {
+    delay(50);
+    TOGGLE(13);     // Flash fast while USB initialisation completes
+  }
+
+  debug_frmwrk_init();
+  usb_serial.printf("\n\nRe-ARM (LPC1768 @ %dMhz) UART0 Initialised\n", SystemCoreClock / 1000000);
+
+  HAL_timer_init();
+
+  setup();
+  while (true) {
+    loop();
+  }
+}
+
+#endif // TARGET_LPC1768