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[2.0.x] LPC176x Serial cleanup (#11032)

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This commit is contained in:
Chris Pepper
2018-06-17 02:59:22 +01:00
committed by Scott Lahteine
parent c1269c2ec1
commit 0312c42f9d
17 changed files with 152 additions and 290 deletions
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76
Marlin/src/HAL/HAL_LPC1768/main.cpp
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@@ -35,53 +35,52 @@ extern "C" {
#include "LPC1768_PWM.h"
static __INLINE uint32_t SysTick_Config(uint32_t ticks) {
if (ticks > SysTick_LOAD_RELOAD_Msk)
return (1); /* Reload value impossible */
if (ticks > SysTick_LOAD_RELOAD_Msk) return 1;
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->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; // Set reload register
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 */
SysTick_CTRL_TICKINT_Msk |
SysTick_CTRL_ENABLE_Msk; // Enable SysTick IRQ and SysTick Timer
NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(0, 0, 0)); // Set Priority for Cortex-M3 System Interrupts
return 0;
}
extern "C" {
extern void disk_timerproc(void);
volatile uint32_t _millis;
void SysTick_Handler(void) {
++_millis;
disk_timerproc(); /* Disk timer process */
}
}
extern int isLPC1769();
extern void disk_timerproc(void);
volatile uint32_t _millis;
// 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);
void SysTick_Handler(void) {
++_millis;
disk_timerproc();
}
}
// detect 17x[4-8] (100MHz) or 17x9 (120MHz)
static bool isLPC1769() {
#define IAP_LOCATION 0x1FFF1FF1
uint32_t command[1];
uint32_t result[5];
typedef void (*IAP)(uint32_t*, uint32_t*);
IAP iap = (IAP) IAP_LOCATION;
// Runs after clock init and before global static constructors
void SystemPostInit() {
_millis = 0; // Initialise the millisecond counter value;
SysTick_Config(SystemCoreClock / 1000); // Start millisecond global counter
command[0] = 54;
iap(command, result);
// Runs before setup() need to configure LED_PIN and use to indicate succsessful bootloader execution
#if PIN_EXISTS(LED)
SET_DIR_OUTPUT(LED_PIN);
WRITE_PIN_CLR(LED_PIN);
return ((result[1] & 0x00100000) != 0);
//MKS-SBASE has 3 other LEDS the bootloader uses during flashing, clear them
SET_DIR_OUTPUT(P1_19);
WRITE_PIN_CLR(P1_19);
SET_DIR_OUTPUT(P1_20);
WRITE_PIN_CLR(P1_20);
SET_DIR_OUTPUT(P1_21);
WRITE_PIN_CLR(P1_21);
for (int i = 0; i < 6; ++i) {
TOGGLE(LED_PIN);
delay(100);
}
#endif
}
}
extern uint32_t MSC_SD_Init(uint8_t pdrv);
@@ -96,7 +95,6 @@ int main(void) {
const uint32_t usb_timeout = millis() + 2000;
while (!USB_Configuration && PENDING(millis(), usb_timeout)) {
delay(50);
#if PIN_EXISTS(LED)
TOGGLE(LED_PIN); // Flash fast while USB initialisation completes
#endif
@@ -107,7 +105,7 @@ int main(void) {
#if NUM_SERIAL > 1
MYSERIAL1.begin(BAUDRATE);
#endif
SERIAL_PRINTF("\n\n%s (%dMhz) UART0 Initialised\n", isLPC1769() ? "LPC1769" : "LPC1768", SystemCoreClock / 1000000);
SERIAL_PRINTF("\n\necho:%s (%dMhz) Initialised\n", isLPC1769() ? "LPC1769" : "LPC1768", SystemCoreClock / 1000000);
SERIAL_FLUSHTX();
#endif