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-rw-r--r--wirish/HardwareTimer.cpp39
-rw-r--r--wirish/HardwareTimer.h14
-rw-r--r--wirish/boards.h219
-rw-r--r--wirish/comm/HardwareSerial.cpp89
-rw-r--r--wirish/comm/HardwareSerial.h18
-rw-r--r--wirish/ext_interrupts.c29
-rw-r--r--wirish/ext_interrupts.h8
-rw-r--r--wirish/io.h51
-rw-r--r--wirish/pwm.c4
-rw-r--r--wirish/time.c54
-rw-r--r--wirish/time.h50
-rw-r--r--wirish/wirish.c60
-rw-r--r--wirish/wirish.h12
-rw-r--r--wirish/wirish_analog.c5
-rw-r--r--wirish/wirish_digital.c68
15 files changed, 414 insertions, 306 deletions
diff --git a/wirish/HardwareTimer.cpp b/wirish/HardwareTimer.cpp
index 3c8e9f4..5675948 100644
--- a/wirish/HardwareTimer.cpp
+++ b/wirish/HardwareTimer.cpp
@@ -32,10 +32,7 @@
#include "HardwareTimer.h"
HardwareTimer::HardwareTimer(uint8 timerNum) {
- ASSERT(timerNum == 1 ||
- timerNum == 2 ||
- timerNum == 3 ||
- timerNum == 4);
+ ASSERT(timerNum < NR_TIMERS);
this->timerNum = timerNum;
// Need to remember over flow for bounds checking
this->overflow = 0xFFFF;
@@ -141,9 +138,43 @@ void HardwareTimer::detachCompare3Interrupt(void) {
void HardwareTimer::detachCompare4Interrupt(void) {
timer_detach_interrupt(this->timerNum,4);
}
+#if NR_TIMERS >= 8
+void HardwareTimer::setChannel5Mode(uint8 mode) {
+ timer_set_mode(this->timerNum,5,mode);
+}
+void HardwareTimer::setChannel8Mode(uint8 mode) {
+ timer_set_mode(this->timerNum,8,mode);
+}
+void HardwareTimer::setCompare5(uint16 val) {
+ if(val > this->overflow)
+ val = this->overflow;
+ timer_set_compare_value(this->timerNum,5,val);
+}
+void HardwareTimer::setCompare8(uint16 val) {
+ if(val > this->overflow)
+ val = this->overflow;
+ timer_set_compare_value(this->timerNum,8,val);
+}
+void HardwareTimer::attachCompare5Interrupt(voidFuncPtr handler) {
+ timer_attach_interrupt(this->timerNum,5,handler);
+}
+void HardwareTimer::attachCompare8Interrupt(voidFuncPtr handler) {
+ timer_attach_interrupt(this->timerNum,8,handler);
+}
+void HardwareTimer::detachCompare5Interrupt(void) {
+ timer_detach_interrupt(this->timerNum,5);
+}
+void HardwareTimer::detachCompare8Interrupt(void) {
+ timer_detach_interrupt(this->timerNum,8);
+}
+#endif
HardwareTimer Timer1(1);
HardwareTimer Timer2(2);
HardwareTimer Timer3(3);
HardwareTimer Timer4(4);
+#if NR_TIMERS >= 8
+HardwareTimer Timer5(5); // High-density devices only
+HardwareTimer Timer8(8); // High-density devices only
+#endif
diff --git a/wirish/HardwareTimer.h b/wirish/HardwareTimer.h
index c79f54f..3f986e4 100644
--- a/wirish/HardwareTimer.h
+++ b/wirish/HardwareTimer.h
@@ -62,12 +62,26 @@ class HardwareTimer {
void detachCompare2Interrupt(void);
void detachCompare3Interrupt(void);
void detachCompare4Interrupt(void);
+ #if NR_TIMERS >= 8
+ void setChannel5Mode(uint8 mode);
+ void setChannel8Mode(uint8 mode);
+ void setCompare5(uint16 val); // truncates to overflow
+ void setCompare8(uint16 val); // truncates to overflow
+ void attachCompare5Interrupt(voidFuncPtr handler);
+ void attachCompare8Interrupt(voidFuncPtr handler);
+ void detachCompare5Interrupt(void);
+ void detachCompare8Interrupt(void);
+ #endif
};
extern HardwareTimer Timer1;
extern HardwareTimer Timer2;
extern HardwareTimer Timer3;
extern HardwareTimer Timer4;
+#if NR_TIMERS >= 8
+extern HardwareTimer Timer5;
+extern HardwareTimer Timer8;
+#endif
#endif
diff --git a/wirish/boards.h b/wirish/boards.h
new file mode 100644
index 0000000..035868a
--- /dev/null
+++ b/wirish/boards.h
@@ -0,0 +1,219 @@
+/* *****************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2010 Bryan Newbold.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * ****************************************************************************/
+
+// This file contains BOARD-specific pin mapping tables. To add a new board
+// type, copy the "BOARD_maple" section below and edit it as needed, then
+// update your build toolchain with a new "BOARD" type. This must match the
+// seperate MCU type (which determines the ../libmaple configuration).
+
+#ifndef _BOARDS_H_
+#define _BOARDS_H_
+
+#include "libmaple.h"
+#include "gpio.h"
+#include "timers.h"
+#include "exti.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+// Set of all possible digital pin names; not all boards have all these
+enum {
+ D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16,
+ D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31,
+ D32, D33, D34, D35, D36, D37, D38, D39, D40, D41, D42, D43, D44, D45, D46,
+ D47, D48, D49, D50, D51, D52, D53, D54, D55, D56, D57, D58, D59, D60, D61,
+ D62, D63, D64, D65, D66, D67, D68, D69, D70, D71, D72, D73, D74, D75, D76,
+ D77, D78, D79, D80, D81, D82, D83, D84, D85, D86, D87, D88, D89, D90, D91,
+ D92, D93, D94, D95, D96, D97, D98, D99, D100, D101, D102, D103, D104, D105,
+ D106, D107, D108, D109, D110, D111, };
+
+// Set of all possible analog pin names; not all boards have all these
+enum {
+ ADC0, ADC1, ADC2, ADC3, ADC4, ADC5, ADC6, ADC7, ADC8, ADC9, ADC10, ADC11,
+ ADC12, ADC13, ADC14, ADC15, ADC16, ADC17, ADC18, ADC19, ADC20, };
+
+#define ADC_INVALID 0xFFFFFFFF
+#define TIMER_INVALID (TimerCCR)0xFFFFFFFF
+
+// Types used for the tables below
+typedef struct PinMapping {
+ GPIO_Port *port;
+ uint32 pin;
+ uint32 adc;
+ TimerCCR timer_channel;
+} PinMapping;
+
+typedef struct ExtiInfo {
+ uint8 channel;
+ uint8 port;
+} ExtiInfo;
+
+// LeafLabs Maple rev3, rev4
+#ifdef BOARD_maple
+
+ #define CYCLES_PER_MICROSECOND 72
+
+ static PinMapping PIN_MAP[NR_GPIO_PINS] = {
+ {GPIOA_BASE, 3, ADC3, TIMER2_CH4_CCR}, // D0/PA3
+ {GPIOA_BASE, 2, ADC2, TIMER2_CH3_CCR}, // D1/PA2
+ {GPIOA_BASE, 0, ADC0, TIMER2_CH1_CCR}, // D2/PA0
+ {GPIOA_BASE, 1, ADC1, TIMER2_CH2_CCR}, // D3/PA1
+ {GPIOB_BASE, 5, ADC_INVALID, TIMER_INVALID}, // D4/PB5
+ {GPIOB_BASE, 6, ADC_INVALID, TIMER4_CH1_CCR}, // D5/PB6
+ {GPIOA_BASE, 8, ADC_INVALID, TIMER1_CH1_CCR}, // D6/PA8
+ {GPIOA_BASE, 9, ADC_INVALID, TIMER1_CH2_CCR}, // D7/PA9
+ {GPIOA_BASE, 10, ADC_INVALID, TIMER1_CH3_CCR}, // D8/PA10
+ {GPIOB_BASE, 7, ADC_INVALID, TIMER4_CH2_CCR}, // D9/PB7
+ {GPIOA_BASE, 4, ADC4, TIMER_INVALID}, // D10/PA4
+ {GPIOA_BASE, 7, ADC7, TIMER3_CH2_CCR}, // D11/PA7
+ {GPIOA_BASE, 6, ADC6, TIMER3_CH1_CCR}, // D12/PA6
+ {GPIOA_BASE, 5, ADC5, TIMER_INVALID}, // D13/PA5
+ {GPIOB_BASE, 8, ADC_INVALID, TIMER4_CH3_CCR}, // D14/PB8
+ /* Little header */
+ {GPIOC_BASE, 0, ADC10, TIMER_INVALID}, // D15/PC0
+ {GPIOC_BASE, 1, ADC11, TIMER_INVALID}, // D16/PC1
+ {GPIOC_BASE, 2, ADC12, TIMER_INVALID}, // D17/PC2
+ {GPIOC_BASE, 3, ADC13, TIMER_INVALID}, // D18/PC3
+ {GPIOC_BASE, 4, ADC14, TIMER_INVALID}, // D19/PC4
+ {GPIOC_BASE, 5, ADC15, TIMER_INVALID}, // D20/PC5
+ /* External header */
+ {GPIOC_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D21/PC13
+ {GPIOC_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D22/PC14
+ {GPIOC_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D23/PC15
+ {GPIOB_BASE, 9, ADC_INVALID, TIMER4_CH4_CCR}, // D24/PB9
+ {GPIOD_BASE, 2, ADC_INVALID, TIMER_INVALID}, // D25/PD2
+ {GPIOC_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D26/PC10
+ {GPIOB_BASE, 0, ADC8, TIMER3_CH3_CCR}, // D27/PB0
+ {GPIOB_BASE, 1, ADC9, TIMER3_CH4_CCR}, // D28/PB1
+ {GPIOB_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D29/PB10
+ {GPIOB_BASE, 11, ADC_INVALID, TIMER_INVALID}, // D30/PB11
+ {GPIOB_BASE, 12, ADC_INVALID, TIMER_INVALID}, // D31/PB12
+ {GPIOB_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D32/PB13
+ {GPIOB_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D33/PB14
+ {GPIOB_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D34/PB15
+ {GPIOC_BASE, 6, ADC_INVALID, TIMER_INVALID}, // D35/PC6
+ {GPIOC_BASE, 7, ADC_INVALID, TIMER_INVALID}, // D36/PC7
+ {GPIOC_BASE, 8, ADC_INVALID, TIMER_INVALID}, // D37/PC8
+ {GPIOC_BASE, 9, ADC_INVALID, TIMER_INVALID} // D38/PC9 (BUT)
+ };
+
+ static ExtiInfo PIN_TO_EXTI_CHANNEL[NR_GPIO_PINS] = {
+ {EXTI3, EXTI_CONFIG_PORTA}, // D0/PA3
+ {EXTI2, EXTI_CONFIG_PORTA}, // D1/PA2
+ {EXTI0, EXTI_CONFIG_PORTA}, // D2/PA0
+ {EXTI1, EXTI_CONFIG_PORTA}, // D3/PA1
+ {EXTI5, EXTI_CONFIG_PORTB}, // D4/PB5
+ {EXTI6, EXTI_CONFIG_PORTB}, // D5/PB6
+ {EXTI8, EXTI_CONFIG_PORTA}, // D6/PA8
+ {EXTI9, EXTI_CONFIG_PORTA}, // D7/PA9
+ {EXTI10, EXTI_CONFIG_PORTA}, // D8/PA10
+ {EXTI7, EXTI_CONFIG_PORTB}, // D9/PB7
+ {EXTI4, EXTI_CONFIG_PORTA}, // D10/PA4
+ {EXTI7, EXTI_CONFIG_PORTA}, // D11/PA7
+ {EXTI6, EXTI_CONFIG_PORTA}, // D12/PA6
+ {EXTI5, EXTI_CONFIG_PORTA}, // D13/PA5
+ };
+
+#endif
+
+// LeafLabs Maple Native (prototype)
+#ifdef BOARD_maple_native
+
+ #define CYCLES_PER_MICROSECOND 72
+
+ // TODO:
+ static PinMapping PIN_MAP[NR_GPIO_PINS] = {
+ {GPIOA_BASE, 3, ADC3, TIMER2_CH4_CCR}, // D0/PA3
+ {GPIOA_BASE, 2, ADC2, TIMER2_CH3_CCR}, // D1/PA2
+ {GPIOA_BASE, 0, ADC0, TIMER2_CH1_CCR}, // D2/PA0
+ {GPIOA_BASE, 1, ADC1, TIMER2_CH2_CCR}, // D3/PA1
+ {GPIOB_BASE, 5, ADC_INVALID, TIMER_INVALID}, // D4/PB5
+ {GPIOB_BASE, 6, ADC_INVALID, TIMER4_CH1_CCR}, // D5/PB6
+ {GPIOA_BASE, 8, ADC_INVALID, TIMER1_CH1_CCR}, // D6/PA8
+ {GPIOA_BASE, 9, ADC_INVALID, TIMER1_CH2_CCR}, // D7/PA9
+ {GPIOA_BASE, 10, ADC_INVALID, TIMER1_CH3_CCR}, // D8/PA10
+ {GPIOB_BASE, 7, ADC_INVALID, TIMER4_CH2_CCR}, // D9/PB7
+ {GPIOA_BASE, 4, ADC4, TIMER_INVALID}, // D10/PA4
+ {GPIOA_BASE, 7, ADC7, TIMER3_CH2_CCR}, // D11/PA7
+ {GPIOA_BASE, 6, ADC6, TIMER3_CH1_CCR}, // D12/PA6
+ {GPIOA_BASE, 5, ADC5, TIMER_INVALID}, // D13/PA5
+ {GPIOB_BASE, 8, ADC_INVALID, TIMER4_CH3_CCR}, // D14/PB8
+ /* Little header */
+ {GPIOC_BASE, 0, ADC10, TIMER_INVALID}, // D15/PC0
+ {GPIOC_BASE, 1, ADC11, TIMER_INVALID}, // D16/PC1
+ {GPIOC_BASE, 2, ADC12, TIMER_INVALID}, // D17/PC2
+ {GPIOC_BASE, 3, ADC13, TIMER_INVALID}, // D18/PC3
+ {GPIOC_BASE, 4, ADC14, TIMER_INVALID}, // D19/PC4
+ {GPIOC_BASE, 5, ADC15, TIMER_INVALID}, // D20/PC5
+ /* External header */
+ {GPIOC_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D21/PC13
+ {GPIOC_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D22/PC14
+ {GPIOC_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D23/PC15
+ {GPIOB_BASE, 9, ADC_INVALID, TIMER4_CH4_CCR}, // D24/PB9
+ {GPIOD_BASE, 2, ADC_INVALID, TIMER_INVALID}, // D25/PD2
+ {GPIOC_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D26/PC10
+ {GPIOB_BASE, 0, ADC8, TIMER3_CH3_CCR}, // D27/PB0
+ {GPIOB_BASE, 1, ADC9, TIMER3_CH4_CCR}, // D28/PB1
+ {GPIOB_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D29/PB10
+ {GPIOB_BASE, 11, ADC_INVALID, TIMER_INVALID}, // D30/PB11
+ {GPIOB_BASE, 12, ADC_INVALID, TIMER_INVALID}, // D31/PB12
+ {GPIOB_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D32/PB13
+ {GPIOB_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D33/PB14
+ {GPIOB_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D34/PB15
+ {GPIOC_BASE, 6, ADC_INVALID, TIMER_INVALID}, // D35/PC6
+ {GPIOC_BASE, 7, ADC_INVALID, TIMER_INVALID}, // D36/PC7
+ {GPIOC_BASE, 8, ADC_INVALID, TIMER_INVALID}, // D37/PC8
+ {GPIOC_BASE, 9, ADC_INVALID, TIMER_INVALID} // D38/PC9 (BUT)
+ };
+
+ static ExtiInfo PIN_TO_EXTI_CHANNEL[NR_GPIO_PINS] = {
+ {EXTI3, EXTI_CONFIG_PORTA}, // D0/PA3
+ {EXTI2, EXTI_CONFIG_PORTA}, // D1/PA2
+ {EXTI0, EXTI_CONFIG_PORTA}, // D2/PA0
+ {EXTI1, EXTI_CONFIG_PORTA}, // D3/PA1
+ {EXTI5, EXTI_CONFIG_PORTB}, // D4/PB5
+ {EXTI6, EXTI_CONFIG_PORTB}, // D5/PB6
+ {EXTI8, EXTI_CONFIG_PORTA}, // D6/PA8
+ {EXTI9, EXTI_CONFIG_PORTA}, // D7/PA9
+ {EXTI10, EXTI_CONFIG_PORTA}, // D8/PA10
+ {EXTI7, EXTI_CONFIG_PORTB}, // D9/PB7
+ {EXTI4, EXTI_CONFIG_PORTA}, // D10/PA4
+ {EXTI7, EXTI_CONFIG_PORTA}, // D11/PA7
+ {EXTI6, EXTI_CONFIG_PORTA}, // D12/PA6
+ {EXTI5, EXTI_CONFIG_PORTA}, // D13/PA5
+ };
+#endif
+
+#ifndef CYCLES_PER_MICROSECOND
+#error Board type has not been selected correctly.
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif
+
diff --git a/wirish/comm/HardwareSerial.cpp b/wirish/comm/HardwareSerial.cpp
index 7157e74..6399ad5 100644
--- a/wirish/comm/HardwareSerial.cpp
+++ b/wirish/comm/HardwareSerial.cpp
@@ -34,77 +34,60 @@
#include "gpio.h"
#include "timers.h"
-#define USART1_TX_PORT GPIOA_BASE
-#define USART1_TX_PIN 9
-#define USART1_RX_PORT GPIOA_BASE
-#define USART1_RX_PIN 10
-
-#define USART2_TX_PORT GPIOA_BASE
-#define USART2_TX_PIN 2
-#define USART2_RX_PORT GPIOA_BASE
-#define USART2_RX_PIN 3
-
-#define USART3_TX_PORT GPIOB_BASE
-#define USART3_TX_PIN 10
-#define USART3_RX_PORT GPIOB_BASE
-#define USART3_RX_PIN 11
-
-HardwareSerial::HardwareSerial(uint8 usartNum) {
- ASSERT(usartNum == 1 ||
- usartNum == 2 ||
- usartNum == 3);
- this->usartNum = usartNum;
+HardwareSerial Serial1(USART1, 4500000UL, GPIOA_BASE, 9, 10, 1, 2);
+HardwareSerial Serial2(USART2, 2250000UL, GPIOA_BASE, 2, 3, 2, 3);
+HardwareSerial Serial3(USART3, 2250000UL, GPIOB_BASE, 10, 11, 0, 0);
+// TODO: High density device ports
+
+HardwareSerial::HardwareSerial(uint8 usart_num,
+ uint32 max_baud,
+ GPIO_Port *gpio_port,
+ uint8 tx_pin,
+ uint8 rx_pin,
+ uint8 timer_num,
+ uint8 compare_num) {
+ this->usart_num = usart_num;
+ this->max_baud = max_baud;
+ this->gpio_port = gpio_port;
+ this->tx_pin = tx_pin;
+ this->rx_pin = rx_pin;
+ this->timer_num = timer_num;
+ this->compare_num = compare_num;
}
uint8 HardwareSerial::read(void) {
- return usart_getc(usartNum);
+ return usart_getc(usart_num);
}
uint32 HardwareSerial::available(void) {
-
- return usart_data_available(usartNum);
+ return usart_data_available(usart_num);
}
void HardwareSerial::write(unsigned char ch) {
- usart_putc(usartNum, ch);
+ usart_putc(usart_num, ch);
}
void HardwareSerial::begin(uint32 baud) {
- ASSERT(!(baud > USART_MAX_BAUD));
+ if (baud > max_baud) {
+ return;
+ }
+
+ gpio_set_mode(gpio_port, tx_pin, GPIO_MODE_AF_OUTPUT_PP);
+ gpio_set_mode(gpio_port, rx_pin, GPIO_MODE_INPUT_FLOATING);
- /* Set appropriate pin modes */
- switch (usartNum) {
- case 1:
- gpio_set_mode(USART1_TX_PORT, USART1_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
- gpio_set_mode(USART1_RX_PORT, USART1_RX_PIN, GPIO_MODE_INPUT_FLOATING);
- /* Turn off any pwm */
- timer_set_mode(1, 2, TIMER_DISABLED);
- break;
- case 2:
- gpio_set_mode(USART2_TX_PORT, USART2_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
- gpio_set_mode(USART2_RX_PORT, USART2_RX_PIN, GPIO_MODE_INPUT_FLOATING);
- /* Turn off any pwm */
- timer_set_mode(2, 3, TIMER_DISABLED);
- break;
- case 3:
- gpio_set_mode(USART3_TX_PORT, USART3_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
- gpio_set_mode(USART3_RX_PORT, USART3_RX_PIN, GPIO_MODE_INPUT_FLOATING);
- break;
- default:
- ASSERT(0);
- }
+ if ((usart_num == USART1) ||
+ (usart_num == USART2)) {
+ /* turn off any pwm if there's a conflict on this usart */
+ timer_set_mode(timer_num, compare_num, TIMER_DISABLED);
+ }
- usart_init(usartNum, baud);
+ usart_init(usart_num, baud);
}
void HardwareSerial::end(void) {
- usart_disable(usartNum);
+ usart_disable(usart_num);
}
void HardwareSerial::flush(void) {
- usart_clear_buffer(usartNum);
+ usart_reset_rx(usart_num);
}
-
-HardwareSerial Serial1(1);
-HardwareSerial Serial2(2);
-HardwareSerial Serial3(3);
diff --git a/wirish/comm/HardwareSerial.h b/wirish/comm/HardwareSerial.h
index 5ed81cd..df8d7bf 100644
--- a/wirish/comm/HardwareSerial.h
+++ b/wirish/comm/HardwareSerial.h
@@ -35,9 +35,21 @@
class HardwareSerial : public Print {
private:
- uint8 usartNum;
+ uint8 usart_num;
+ uint32 max_baud;
+ GPIO_Port *gpio_port;
+ uint8 tx_pin;
+ uint8 rx_pin;
+ uint8 timer_num;
+ uint8 compare_num;
public:
- HardwareSerial(uint8);
+ HardwareSerial(uint8 usart_num,
+ uint32 max_baud,
+ GPIO_Port *gpio_port,
+ uint8 tx_pin,
+ uint8 rx_pin,
+ uint8 timer_num,
+ uint8 compare_num);
void begin(uint32);
void end(void);
uint32 available(void);
@@ -46,9 +58,9 @@ class HardwareSerial : public Print {
virtual void write(unsigned char);
using Print::write;
};
-
extern HardwareSerial Serial1;
extern HardwareSerial Serial2;
extern HardwareSerial Serial3;
+// TODO: high density device ports
#endif
diff --git a/wirish/ext_interrupts.c b/wirish/ext_interrupts.c
index 54b8be9..6ba1d05 100644
--- a/wirish/ext_interrupts.c
+++ b/wirish/ext_interrupts.c
@@ -32,29 +32,6 @@
#include "exti.h"
#include "ext_interrupts.h"
-typedef struct ExtiInfo {
- uint8 channel;
- uint8 port;
-} ExtiInfo;
-
-static ExtiInfo PIN_TO_EXTI_CHANNEL[NR_MAPLE_PINS] = {
- {EXTI3, EXTI_CONFIG_PORTA}, // D0/PA3
- {EXTI2, EXTI_CONFIG_PORTA}, // D1/PA2
- {EXTI0, EXTI_CONFIG_PORTA}, // D2/PA0
- {EXTI1, EXTI_CONFIG_PORTA}, // D3/PA1
- {EXTI5, EXTI_CONFIG_PORTB}, // D4/PB5
- {EXTI6, EXTI_CONFIG_PORTB}, // D5/PB6
- {EXTI8, EXTI_CONFIG_PORTA}, // D6/PA8
- {EXTI9, EXTI_CONFIG_PORTA}, // D7/PA9
- {EXTI10, EXTI_CONFIG_PORTA}, // D8/PA10
- {EXTI7, EXTI_CONFIG_PORTB}, // D9/PB7
- {EXTI4, EXTI_CONFIG_PORTA}, // D10/PA4
- {EXTI7, EXTI_CONFIG_PORTA}, // D11/PA7
- {EXTI6, EXTI_CONFIG_PORTA}, // D12/PA6
- {EXTI5, EXTI_CONFIG_PORTA}, // D13/PA5
-};
-
-
/**
* @brief Attach an interrupt handler to be triggered on a given
* transition on the pin. Runs in interrupt context
@@ -65,10 +42,10 @@ static ExtiInfo PIN_TO_EXTI_CHANNEL[NR_MAPLE_PINS] = {
*
* @sideeffect Registers a handler
*/
-int attachInterrupt(uint8 pin, voidFuncPtr handler, ExtInterruptTriggerMode mode) {
+int attachInterrupt(uint8 pin, voidFuncPtr handler, uint32 mode) {
uint8 outMode;
/* Parameter checking */
- if (pin >= NR_MAPLE_PINS) {
+ if (pin >= NR_GPIO_PINS) {
return EXT_INTERRUPT_INVALID_PIN;
}
@@ -100,7 +77,7 @@ int attachInterrupt(uint8 pin, voidFuncPtr handler, ExtInterruptTriggerMode mode
}
int detachInterrupt(uint8 pin) {
- if (!(pin < NR_MAPLE_PINS)) {
+ if (!(pin < NR_GPIO_PINS)) {
return EXT_INTERRUPT_INVALID_PIN;
}
diff --git a/wirish/ext_interrupts.h b/wirish/ext_interrupts.h
index fc69a15..7449685 100644
--- a/wirish/ext_interrupts.h
+++ b/wirish/ext_interrupts.h
@@ -31,14 +31,14 @@
#ifndef _EXT_INTERRUPTS_H_
#define _EXT_INTERRUPTS_H_
-typedef enum ExtInterruptTriggerMode {
+enum {
RISING,
FALLING,
CHANGE
-} ExtInterruptTriggerMode;
+};
-enum ExtInterruptError {
+enum {
EXT_INTERRUPT_INVALID_PIN = (-1),
EXT_INTERRUPT_INVALID_FUNCTION = (-2),
EXT_INTERRUPT_INVALID_MODE = (-3),
@@ -48,7 +48,7 @@ enum ExtInterruptError {
extern "C"{
#endif
-int attachInterrupt(uint8 pin, voidFuncPtr, ExtInterruptTriggerMode mode);
+int attachInterrupt(uint8 pin, voidFuncPtr, uint32 mode);
int detachInterrupt(uint8 pin);
#ifdef __cplusplus
diff --git a/wirish/io.h b/wirish/io.h
index fff551c..e779604 100644
--- a/wirish/io.h
+++ b/wirish/io.h
@@ -38,48 +38,6 @@
extern "C"{
#endif
-/* stash these here for now */
-#define D0 0
-#define D1 1
-#define D2 2
-#define D3 3
-#define D4 4
-#define D5 5
-#define D6 6
-#define D7 7
-#define D8 8
-#define D9 9
-#define D10 10
-#define D11 11
-#define D12 12
-#define D13 13
-#define D14 14
-#define D15 15
-#define D16 16
-#define D16 16
-#define D17 17
-#define D18 18
-#define D19 19
-#define D20 20
-#define D21 21
-#define D22 22
-#define D23 23
-#define D24 24
-#define D25 25
-#define D26 26
-#define D27 27
-#define D28 28
-#define D29 29
-#define D30 30
-#define D31 31
-#define D32 32
-#define D33 33
-#define D34 34
-#define D35 35
-#define D36 36
-#define D37 37
-#define D38 38
-#define D39 39
typedef enum WiringPinMode {
OUTPUT,
@@ -92,15 +50,6 @@ typedef enum WiringPinMode {
PWM
} WiringPinMode;
-typedef struct PinMapping {
- GPIO_Port *port;
- uint32 pin;
- uint32 adc;
- TimerCCR timer_channel;
-} PinMapping;
-
-#define ADC_INVALID 0xFFFFFFFF
-#define TIMER_INVALID (TimerCCR)0xFFFFFFFF
/* Set pin to mode
* pinMode(pin, mode):
diff --git a/wirish/pwm.c b/wirish/pwm.c
index 40715b5..995e2c7 100644
--- a/wirish/pwm.c
+++ b/wirish/pwm.c
@@ -31,12 +31,10 @@
#include "io.h"
#include "pwm.h"
-extern const PinMapping PIN_MAP[NR_MAPLE_PINS];
-
void pwmWrite(uint8 pin, uint16 duty_cycle) {
TimerCCR ccr;
- if (pin >= NR_MAPLE_PINS) {
+ if (pin >= NR_GPIO_PINS) {
return;
}
diff --git a/wirish/time.c b/wirish/time.c
index 69e962c..ea8ebe1 100644
--- a/wirish/time.c
+++ b/wirish/time.c
@@ -23,8 +23,6 @@
* ****************************************************************************/
/**
- * @file time.c
- *
* @brief
*/
@@ -32,46 +30,24 @@
#include "systick.h"
#include "time.h"
-#define CYCLES_PER_MICROSECOND 72
-#define FUDGE 42
-
-extern volatile uint32 systick_timer_millis;
-
-uint32 millis() {
- unsigned long m;
- m = systick_timer_millis;
- return m;
-}
-
void delay(unsigned long ms)
{
- unsigned long start = millis();
-
- while (millis() - start <= ms)
- ;
+ uint32 i;
+ for (i = 0; i < ms; i++) {
+ delayMicroseconds(1000);
+ }
}
-
-
-#if 1
void delayMicroseconds(uint32 us) {
- uint32 target;
- uint32 last, cur, count;
- /* fudge factor hacky hack hack for function overhead */
- target = us * CYCLES_PER_MICROSECOND - FUDGE;
-
- /* Get current count */
- last = systick_get_count();
- cur = systick_get_count();
- count = last;
- while ((count-cur) <= target) {
- cur = systick_get_count();
-
- /* check for overflow */
- if (cur > last) {
- count += MAPLE_RELOAD_VAL;
- }
- last = cur;
- }
+ // So (2^32)/12 micros max, or less than 6 minutes
+ us *= 12;
+
+ /* fudge for function call overhead */
+ us--;
+ asm volatile(" mov r0, %[us] \n\t"
+ "1: subs r0, #1 \n\t"
+ " bhi 1b \n\t"
+ :
+ : [us] "r" (us)
+ : "r0");
}
-#endif
diff --git a/wirish/time.h b/wirish/time.h
index 9e5536b..33c04b4 100644
--- a/wirish/time.h
+++ b/wirish/time.h
@@ -23,8 +23,6 @@
* ****************************************************************************/
/**
- * @file time.h
- *
* @brief
*/
@@ -34,32 +32,42 @@
#ifdef __cplusplus
extern "C"{
#endif
-/* Returns time since boot in milliseconds */
-uint32 millis(void);
+
+#include "nvic.h"
+#include "systick.h"
+#include "boards.h"
+
+#define US_PER_MS 1000
+#define MAPLE_RELOAD_VAL (CYCLES_PER_MICROSECOND * US_PER_MS)
+
+extern volatile uint32 systick_timer_millis;
+
+/* time in milliseconds since boot */
+static inline uint32 millis(void) {
+ return systick_timer_millis;
+}
/* Time in microseconds since boot */
-uint32 micros(void);
+static inline uint32 micros(void) {
+ uint32 ms;
+ uint32 cycle_cnt;
+ uint32 res;
-/* Delay for ms milliseconds */
-void delay(unsigned long ms);
+ nvic_globalirq_disable();
-/* Delay for us microseconds */
-void delayMicroseconds(uint32 us);
+ cycle_cnt = systick_get_count();
+ ms = millis();
+
+ nvic_globalirq_enable();
-#if 0
-static inline void delay_us(uint32 us) {
- us *= 12;
- asm volatile("mov r0, %[us] \n\t"
- "subs r0, #2 \n\t"
-"1: \n\t"
- "subs r0, r0, #1 \n\t"
- "bne 1b"
- :
- : [us] "r" (us)
- : "r0", "cc");
+ res = (ms * US_PER_MS) + (MAPLE_RELOAD_VAL - cycle_cnt)/CYCLES_PER_MICROSECOND;
+ return res;
}
-#endif
+
+void delay(unsigned long ms);
+void delayMicroseconds(uint32 us);
+
#ifdef __cplusplus
} // extern "C"
#endif
diff --git a/wirish/wirish.c b/wirish/wirish.c
index 28e7130..41f5db4 100644
--- a/wirish/wirish.c
+++ b/wirish/wirish.c
@@ -23,7 +23,14 @@
* ****************************************************************************/
/**
- * @brief Maple board bring up
+ * @brief generic maple board bring up:
+ *
+ * By default, we bring up all maple boards running on the stm32 to 72mhz,
+ * clocked off the PLL, driven by the 8MHz external crystal.
+ *
+ * AHB and APB2 are clocked at 72MHz
+ * APB1 is clocked at 36MHz
+ *
*/
#include "wirish.h"
@@ -32,35 +39,40 @@
#include "nvic.h"
#include "usb.h"
#include "rcc.h"
+#include "fsmc.h"
+#include "dac.h"
#include "flash.h"
-static void inline maple_flash_init(void) {
+void init(void) {
+ /* make sure the flash is ready before spinning the high speed clock up */
flash_enable_prefetch();
flash_set_latency(FLASH_WAIT_STATE_2);
-}
-static void inline maple_rcc_init(void) {
- struct rcc_device maple_rcc_dev = {
- .apb1_prescale = RCC_APB1_HCLK_DIV_2,
- .apb2_prescale = RCC_APB2_HCLK_DIV_1,
- .ahb_prescale = RCC_AHB_SYSCLK_DIV_1,
- .sysclk_src = RCC_CLKSRC_PLL,
- .pll_src = RCC_PLLSRC_HSE,
- .pll_mul = RCC_PLLMUL_9
- };
+ #if HAS_FSMC
+ fsmc_native_sram_init();
+ #endif
+
+ #if NR_DAC_PINS > 0
+ dac_init();
+ #endif
+
+ /* initialize clocks */
+ rcc_clk_init(RCC_CLKSRC_PLL, RCC_PLLSRC_HSE, RCC_PLLMUL_9);
+ rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1);
+ rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2);
+ rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1);
- rcc_init(&maple_rcc_dev);
-}
-void init(void) {
- maple_flash_init();
- maple_rcc_init();
nvic_init();
- systick_init();
+ systick_init(MAPLE_RELOAD_VAL);
gpio_init();
-// adc_init();
-// timer_init(1, 1);
-// timer_init(2, 1);
-// timer_init(3, 1);
-// timer_init(4, 1);
-// setupUSB();
+ adc_init();
+ timer_init(1, 1);
+ timer_init(2, 1);
+ timer_init(3, 1);
+ timer_init(4, 1);
+ #if NR_TIMERS >= 8
+ timer_init(5, 1);
+ timer_init(8, 1);
+ #endif
+ setupUSB();
}
diff --git a/wirish/wirish.h b/wirish/wirish.h
index 13ff313..7ede77c 100644
--- a/wirish/wirish.h
+++ b/wirish/wirish.h
@@ -32,10 +32,11 @@
#define _WIRISH_H_
#include "libmaple.h"
+#include "boards.h"
+#include "time.h"
#include "timers.h"
#include "io.h"
#include "bits.h"
-#include "time.h"
#include "pwm.h"
#include "ext_interrupts.h"
#include "wirish_math.h"
@@ -51,9 +52,6 @@
extern "C"{
#endif
-#define MAPLE 1
-#define NR_MAPLE_PINS 39 // temporary
-
/* Arduino wiring macros and bit defines */
#define HIGH 0x1
#define LOW 0x0
@@ -64,9 +62,6 @@ extern "C"{
#define LSBFIRST 0
#define MSBFIRST 1
-#define USER_ADDR_ROM 0x08005000
-#define USER_ADDR_RAM 0x20000C00
-
#define lowByte(w) ((w) & 0xff)
#define highByte(w) ((w) >> 8)
#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
@@ -86,8 +81,5 @@ void shiftOut(uint8 dataPin, uint8 clockPin, uint8 bitOrder, byte val);
} // extern "C"
#endif
-
-
-
#endif
diff --git a/wirish/wirish_analog.c b/wirish/wirish_analog.c
index f4c1204..1b911bc 100644
--- a/wirish/wirish_analog.c
+++ b/wirish/wirish_analog.c
@@ -30,13 +30,12 @@
#include "wirish.h"
#include "io.h"
-extern const PinMapping PIN_MAP[NR_MAPLE_PINS];
-
/* Assumes that the ADC has been initialized and
* that the pin is set to ANALOG_INPUT */
uint32 analogRead(uint8 pin) {
- if (pin >= NR_ANALOG_PINS)
+ if(PIN_MAP[pin].adc == ADC_INVALID) {
return 0;
+ }
return adc_read(PIN_MAP[pin].adc);
}
diff --git a/wirish/wirish_digital.c b/wirish/wirish_digital.c
index 33217b6..c93c786 100644
--- a/wirish/wirish_digital.c
+++ b/wirish/wirish_digital.c
@@ -29,72 +29,10 @@
#include "wirish.h"
#include "io.h"
-#define ADC0 0
-#define ADC1 1
-#define ADC2 2
-#define ADC3 3
-#define ADC4 4
-#define ADC5 5
-#define ADC6 6
-#define ADC7 7
-#define ADC8 8
-#define ADC9 9
-#define ADC10 10
-#define ADC11 11
-#define ADC12 12
-#define ADC13 13
-#define ADC14 14
-#define ADC15 15
-#define ADC16 16
-
-const PinMapping PIN_MAP[NR_MAPLE_PINS] = {
- {GPIOA_BASE, 3, ADC3, TIMER2_CH4_CCR}, // D0/PA3
- {GPIOA_BASE, 2, ADC2, TIMER2_CH3_CCR}, // D1/PA2
- {GPIOA_BASE, 0, ADC0, TIMER2_CH1_CCR}, // D2/PA0
- {GPIOA_BASE, 1, ADC1, TIMER2_CH2_CCR}, // D3/PA1
- {GPIOB_BASE, 5, ADC_INVALID, TIMER_INVALID}, // D4/PB5
- {GPIOB_BASE, 6, ADC_INVALID, TIMER4_CH1_CCR}, // D5/PB6
- {GPIOA_BASE, 8, ADC_INVALID, TIMER1_CH1_CCR}, // D6/PA8
- {GPIOA_BASE, 9, ADC_INVALID, TIMER1_CH2_CCR}, // D7/PA9
- {GPIOA_BASE, 10, ADC_INVALID, TIMER1_CH3_CCR}, // D8/PA10
- {GPIOB_BASE, 7, ADC_INVALID, TIMER4_CH2_CCR}, // D9/PB7
- {GPIOA_BASE, 4, ADC4, TIMER_INVALID}, // D10/PA4
- {GPIOA_BASE, 7, ADC7, TIMER3_CH2_CCR}, // D11/PA7
- {GPIOA_BASE, 6, ADC6, TIMER3_CH1_CCR}, // D12/PA6
- {GPIOA_BASE, 5, ADC5, TIMER_INVALID}, // D13/PA5
- {GPIOB_BASE, 8, ADC_INVALID, TIMER4_CH3_CCR}, // D14/PB8
- /* Little header */
- {GPIOC_BASE, 0, ADC10, TIMER_INVALID}, // D15/PC0
- {GPIOC_BASE, 1, ADC11, TIMER_INVALID}, // D16/PC1
- {GPIOC_BASE, 2, ADC12, TIMER_INVALID}, // D17/PC2
- {GPIOC_BASE, 3, ADC13, TIMER_INVALID}, // D18/PC3
- {GPIOC_BASE, 4, ADC14, TIMER_INVALID}, // D19/PC4
- {GPIOC_BASE, 5, ADC15, TIMER_INVALID}, // D20/PC5
- /* External header */
- {GPIOC_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D21/PC13
- {GPIOC_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D22/PC14
- {GPIOC_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D23/PC15
- {GPIOB_BASE, 9, ADC_INVALID, TIMER4_CH4_CCR}, // D24/PB9
- {GPIOD_BASE, 2, ADC_INVALID, TIMER_INVALID}, // D25/PD2
- {GPIOC_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D26/PC10
- {GPIOB_BASE, 0, ADC8, TIMER3_CH3_CCR}, // D27/PB0
- {GPIOB_BASE, 1, ADC9, TIMER3_CH4_CCR}, // D28/PB1
- {GPIOB_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D29/PB10
- {GPIOB_BASE, 11, ADC_INVALID, TIMER_INVALID}, // D30/PB11
- {GPIOB_BASE, 12, ADC_INVALID, TIMER_INVALID}, // D31/PB12
- {GPIOB_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D32/PB13
- {GPIOB_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D33/PB14
- {GPIOB_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D34/PB15
- {GPIOC_BASE, 6, ADC_INVALID, TIMER_INVALID}, // D35/PC6
- {GPIOC_BASE, 7, ADC_INVALID, TIMER_INVALID}, // D36/PC7
- {GPIOC_BASE, 8, ADC_INVALID, TIMER_INVALID}, // D37/PC8
- {GPIOC_BASE, 9, ADC_INVALID, TIMER_INVALID} // D38/PC9
-};
-
void pinMode(uint8 pin, WiringPinMode mode) {
uint8 outputMode;
- if (pin >= NR_MAPLE_PINS)
+ if (pin >= NR_GPIO_PINS)
return;
switch(mode) {
@@ -130,13 +68,13 @@ void pinMode(uint8 pin, WiringPinMode mode) {
uint32 digitalRead(uint8 pin) {
- if (pin >= NR_MAPLE_PINS)
+ if (pin >= NR_GPIO_PINS)
return 0;
return gpio_read_bit(PIN_MAP[pin].port, PIN_MAP[pin].pin);
}
void digitalWrite(uint8 pin, uint8 val) {
- if (pin >= NR_MAPLE_PINS)
+ if (pin >= NR_GPIO_PINS)
return;
gpio_write_bit(PIN_MAP[pin].port, PIN_MAP[pin].pin, val);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 10:24:54 +0000