From e8701195e66f2d27ffe17fb514eae8173795aaf7 Mon Sep 17 00:00:00 2001
From: Georgiy Bondarenko <69736697+nehilo@users.noreply.github.com>
Date: Thu, 4 Mar 2021 22:54:23 +0500
Subject: Initial commit
---
Marlin/src/HAL/TEENSY40_41/HAL.cpp | 170 +++++++++++++++++++++++++++++++++++++
1 file changed, 170 insertions(+)
create mode 100644 Marlin/src/HAL/TEENSY40_41/HAL.cpp
(limited to 'Marlin/src/HAL/TEENSY40_41/HAL.cpp')
diff --git a/Marlin/src/HAL/TEENSY40_41/HAL.cpp b/Marlin/src/HAL/TEENSY40_41/HAL.cpp
new file mode 100644
index 0000000..26449d7
--- /dev/null
+++ b/Marlin/src/HAL/TEENSY40_41/HAL.cpp
@@ -0,0 +1,170 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+
+/**
+ * HAL for Teensy 4.0 / 4.1 (IMXRT1062)
+ */
+
+#ifdef __IMXRT1062__
+
+#include "HAL.h"
+#include "../shared/Delay.h"
+#include "timers.h"
+
+#include
+
+DefaultSerial MSerial(false);
+USBSerialType USBSerial(false, SerialUSB);
+
+uint16_t HAL_adc_result, HAL_adc_select;
+
+static const uint8_t pin2sc1a[] = {
+ 0x07, // 0/A0 AD_B1_02
+ 0x08, // 1/A1 AD_B1_03
+ 0x0C, // 2/A2 AD_B1_07
+ 0x0B, // 3/A3 AD_B1_06
+ 0x06, // 4/A4 AD_B1_01
+ 0x05, // 5/A5 AD_B1_00
+ 0x0F, // 6/A6 AD_B1_10
+ 0x00, // 7/A7 AD_B1_11
+ 0x0D, // 8/A8 AD_B1_08
+ 0x0E, // 9/A9 AD_B1_09
+ 0x01, // 24/A10 AD_B0_12
+ 0x02, // 25/A11 AD_B0_13
+ 0x83, // 26/A12 AD_B1_14 - only on ADC2, 3
+ 0x84, // 27/A13 AD_B1_15 - only on ADC2, 4
+ 0x07, // 14/A0 AD_B1_02
+ 0x08, // 15/A1 AD_B1_03
+ 0x0C, // 16/A2 AD_B1_07
+ 0x0B, // 17/A3 AD_B1_06
+ 0x06, // 18/A4 AD_B1_01
+ 0x05, // 19/A5 AD_B1_00
+ 0x0F, // 20/A6 AD_B1_10
+ 0x00, // 21/A7 AD_B1_11
+ 0x0D, // 22/A8 AD_B1_08
+ 0x0E, // 23/A9 AD_B1_09
+ 0x01, // 24/A10 AD_B0_12
+ 0x02, // 25/A11 AD_B0_13
+ 0x83, // 26/A12 AD_B1_14 - only on ADC2, 3
+ 0x84, // 27/A13 AD_B1_15 - only on ADC2, 4
+ #ifdef ARDUINO_TEENSY41
+ 0xFF, // 28
+ 0xFF, // 29
+ 0xFF, // 30
+ 0xFF, // 31
+ 0xFF, // 32
+ 0xFF, // 33
+ 0xFF, // 34
+ 0xFF, // 35
+ 0xFF, // 36
+ 0xFF, // 37
+ 0x81, // 38/A14 AD_B1_12 - only on ADC2, 1
+ 0x82, // 39/A15 AD_B1_13 - only on ADC2, 2
+ 0x09, // 40/A16 AD_B1_04
+ 0x0A, // 41/A17 AD_B1_05
+ #endif
+};
+
+/*
+// disable interrupts
+void cli() { noInterrupts(); }
+
+// enable interrupts
+void sei() { interrupts(); }
+*/
+
+void HAL_adc_init() {
+ analog_init();
+ while (ADC1_GC & ADC_GC_CAL) ;
+ while (ADC2_GC & ADC_GC_CAL) ;
+}
+
+void HAL_clear_reset_source() {
+ uint32_t reset_source = SRC_SRSR;
+ SRC_SRSR = reset_source;
+ }
+
+uint8_t HAL_get_reset_source() {
+ switch (SRC_SRSR & 0xFF) {
+ case 1: return RST_POWER_ON; break;
+ case 2: return RST_SOFTWARE; break;
+ case 4: return RST_EXTERNAL; break;
+ // case 8: return RST_BROWN_OUT; break;
+ case 16: return RST_WATCHDOG; break;
+ case 64: return RST_JTAG; break;
+ // case 128: return RST_OVERTEMP; break;
+ }
+ return 0;
+}
+
+#define __bss_end _ebss
+
+extern "C" {
+ extern char __bss_end;
+ extern char __heap_start;
+ extern void* __brkval;
+
+ // Doesn't work on Teensy 4.x
+ uint32_t freeMemory() {
+ uint32_t free_memory;
+ if ((uint32_t)__brkval == 0)
+ free_memory = ((uint32_t)&free_memory) - ((uint32_t)&__bss_end);
+ else
+ free_memory = ((uint32_t)&free_memory) - ((uint32_t)__brkval);
+ return free_memory;
+ }
+}
+
+void HAL_adc_start_conversion(const uint8_t adc_pin) {
+ const uint16_t pin = pin2sc1a[adc_pin];
+ if (pin == 0xFF) {
+ HAL_adc_select = -1; // Digital only
+ }
+ else if (pin & 0x80) {
+ HAL_adc_select = 1;
+ ADC2_HC0 = pin & 0x7F;
+ }
+ else {
+ HAL_adc_select = 0;
+ ADC1_HC0 = pin;
+ }
+}
+
+uint16_t HAL_adc_get_result() {
+ switch (HAL_adc_select) {
+ case 0:
+ while (!(ADC1_HS & ADC_HS_COCO0)) ; // wait
+ return ADC1_R0;
+ case 1:
+ while (!(ADC2_HS & ADC_HS_COCO0)) ; // wait
+ return ADC2_R0;
+ }
+ return 0;
+}
+
+bool is_output(uint8_t pin) {
+ const struct digital_pin_bitband_and_config_table_struct *p;
+ p = digital_pin_to_info_PGM + pin;
+ return (*(p->reg + 1) & p->mask);
+}
+
+#endif // __IMXRT1062__
--
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