, because Servo did not move.main.c
Code: Select all
/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "chconf.h"
#include "mcuconf.h"
#include "ffconf.h"
#include "ch.hpp"
#include "hal.h"
#include "test.h"
#include <string.h>
#include "servo.h"
#include "chprintf.h"
#include "shell.h"
#include "lwipthread.h"
#include "web/web.h"
#include "ff.h"
/*===========================================================================*/
/* Card insertion monitor. */
/*===========================================================================*/
#define POLLING_INTERVAL 10
#define POLLING_DELAY 10
/**
* @brief Card monitor timer.
*/
static VirtualTimer tmr;
/**
* @brief Debounce counter.
*/
static unsigned cnt;
/**
* @brief Card event sources.
*/
static EventSource inserted_event, removed_event;
/**
* @brief Insertion monitor timer callback function.
*
* @param[in] p pointer to the @p BaseBlockDevice object
*
* @notapi
*/
static void tmrfunc(void *p) {
BaseBlockDevice *bbdp = static_cast<BaseBlockDevice *>(p);
chSysLockFromIsr();
if (cnt > 0) {
if (blkIsInserted(bbdp)) {
if (--cnt == 0) {
chEvtBroadcastI(&inserted_event);
}
}
else
cnt = POLLING_INTERVAL;
}
else {
if (!blkIsInserted(bbdp)) {
cnt = POLLING_INTERVAL;
chEvtBroadcastI(&removed_event);
}
}
chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, bbdp);
chSysUnlockFromIsr();
}
/**
* @brief Polling monitor start.
*
* @param[in] p pointer to an object implementing @p BaseBlockDevice
*
* @notapi
*/
static void tmr_init(void *p) {
chEvtInit(&inserted_event);
chEvtInit(&removed_event);
chSysLock();
cnt = POLLING_INTERVAL;
chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, p);
chSysUnlock();
}
/*===========================================================================*/
/* FatFs related. */
/*===========================================================================*/
/**
* @brief FS object.
*/
static FATFS SDC_FS;
/* FS mounted and ready.*/
static bool_t fs_ready = FALSE;
/* Generic large buffer.*/
static uint8_t fbuff[1024];
static FRESULT scan_files(BaseSequentialStream *chp, char *path) {
FRESULT res;
FILINFO fno;
DIR dir;
int i;
char *fn;
#if _USE_LFN
fno.lfname = 0;
fno.lfsize = 0;
#endif
res = f_opendir(&dir, path);
if (res == FR_OK) {
i = strlen(path);
for (;;) {
res = f_readdir(&dir, &fno);
if (res != FR_OK || fno.fname[0] == 0)
break;
if (fno.fname[0] == '.')
continue;
fn = fno.fname;
if (fno.fattrib & AM_DIR) {
path[i++] = '/';
strcpy(&path[i], fn);
res = scan_files(chp, path);
if (res != FR_OK)
break;
path[--i] = 0;
}
else {
chprintf(chp, "%s/%s\r\n", path, fn);
}
}
}
return res;
}
/*===========================================================================*/
/* USB related stuff. */
/*===========================================================================*/
/*
* Endpoints to be used for USBD1.
*/
#define USBD1_DATA_REQUEST_EP 1
#define USBD1_DATA_AVAILABLE_EP 1
#define USBD1_INTERRUPT_REQUEST_EP 2
/*
* Serial over USB Driver structure.
*/
static SerialUSBDriver SDU1;
/*
* USB Device Descriptor.
*/
static const uint8_t vcom_device_descriptor_data[18] = {
USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
0x02, /* bDeviceClass (CDC). */
0x00, /* bDeviceSubClass. */
0x00, /* bDeviceProtocol. */
0x40, /* bMaxPacketSize. */
0x0483, /* idVendor (ST). */
0x5740, /* idProduct. */
0x0200, /* bcdDevice. */
1, /* iManufacturer. */
2, /* iProduct. */
3, /* iSerialNumber. */
1) /* bNumConfigurations. */
};
/*
* Device Descriptor wrapper.
*/
static const USBDescriptor vcom_device_descriptor = {
sizeof vcom_device_descriptor_data,
vcom_device_descriptor_data
};
/* Configuration Descriptor tree for a CDC.*/
static const uint8_t vcom_configuration_descriptor_data[67] = {
/* Configuration Descriptor.*/
USB_DESC_CONFIGURATION(67, /* wTotalLength. */
0x02, /* bNumInterfaces. */
0x01, /* bConfigurationValue. */
0, /* iConfiguration. */
0xC0, /* bmAttributes (self powered). */
50), /* bMaxPower (100mA). */
/* Interface Descriptor.*/
USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */
0x00, /* bAlternateSetting. */
0x01, /* bNumEndpoints. */
0x02, /* bInterfaceClass (Communications
Interface Class, CDC section
4.2). */
0x02, /* bInterfaceSubClass (Abstract
Control Model, CDC section 4.3). */
0x01, /* bInterfaceProtocol (AT commands,
CDC section 4.4). */
0), /* iInterface. */
/* Header Functional Descriptor (CDC section 5.2.3).*/
USB_DESC_BYTE (5), /* bLength. */
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
USB_DESC_BYTE (0x00), /* bDescriptorSubtype (Header
Functional Descriptor. */
USB_DESC_BCD (0x0110), /* bcdCDC. */
/* Call Management Functional Descriptor. */
USB_DESC_BYTE (5), /* bFunctionLength. */
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
USB_DESC_BYTE (0x01), /* bDescriptorSubtype (Call Management
Functional Descriptor). */
USB_DESC_BYTE (0x00), /* bmCapabilities (D0+D1). */
USB_DESC_BYTE (0x01), /* bDataInterface. */
/* ACM Functional Descriptor.*/
USB_DESC_BYTE (4), /* bFunctionLength. */
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
USB_DESC_BYTE (0x02), /* bDescriptorSubtype (Abstract
Control Management Descriptor). */
USB_DESC_BYTE (0x02), /* bmCapabilities. */
/* Union Functional Descriptor.*/
USB_DESC_BYTE (5), /* bFunctionLength. */
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
USB_DESC_BYTE (0x06), /* bDescriptorSubtype (Union
Functional Descriptor). */
USB_DESC_BYTE (0x00), /* bMasterInterface (Communication
Class Interface). */
USB_DESC_BYTE (0x01), /* bSlaveInterface0 (Data Class
Interface). */
/* Endpoint 2 Descriptor.*/
USB_DESC_ENDPOINT (USBD1_INTERRUPT_REQUEST_EP|0x80,
0x03, /* bmAttributes (Interrupt). */
0x0008, /* wMaxPacketSize. */
0xFF), /* bInterval. */
/* Interface Descriptor.*/
USB_DESC_INTERFACE (0x01, /* bInterfaceNumber. */
0x00, /* bAlternateSetting. */
0x02, /* bNumEndpoints. */
0x0A, /* bInterfaceClass (Data Class
Interface, CDC section 4.5). */
0x00, /* bInterfaceSubClass (CDC section
4.6). */
0x00, /* bInterfaceProtocol (CDC section
4.7). */
0x00), /* iInterface. */
/* Endpoint 3 Descriptor.*/
USB_DESC_ENDPOINT (USBD1_DATA_AVAILABLE_EP, /* bEndpointAddress.*/
0x02, /* bmAttributes (Bulk). */
0x0040, /* wMaxPacketSize. */
0x00), /* bInterval. */
/* Endpoint 1 Descriptor.*/
USB_DESC_ENDPOINT (USBD1_DATA_REQUEST_EP|0x80, /* bEndpointAddress.*/
0x02, /* bmAttributes (Bulk). */
0x0040, /* wMaxPacketSize. */
0x00) /* bInterval. */
};
/*
* Configuration Descriptor wrapper.
*/
static const USBDescriptor vcom_configuration_descriptor = {
sizeof vcom_configuration_descriptor_data,
vcom_configuration_descriptor_data
};
/*
* U.S. English language identifier.
*/
static const uint8_t vcom_string0[] = {
USB_DESC_BYTE(4), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
};
/*
* Vendor string.
*/
static const uint8_t vcom_string1[] = {
USB_DESC_BYTE(38), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
'c', 0, 's', 0
};
/*
* Device Description string.
*/
static const uint8_t vcom_string2[] = {
USB_DESC_BYTE(56), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0,
'R', 0, 'T', 0, ' ', 0, 'V', 0, 'i', 0, 'r', 0, 't', 0, 'u', 0,
'a', 0, 'l', 0, ' ', 0, 'C', 0, 'O', 0, 'M', 0, ' ', 0, 'P', 0,
'o', 0, 'r', 0, 't', 0
};
/*
* Serial Number string.
*/
static const uint8_t vcom_string3[] = {
USB_DESC_BYTE(8), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'0' + CH_KERNEL_MAJOR, 0,
'0' + CH_KERNEL_MINOR, 0,
'0' + CH_KERNEL_PATCH, 0
};
/*
* Strings wrappers array.
*/
static const USBDescriptor vcom_strings[] = {
{sizeof vcom_string0, vcom_string0},
{sizeof vcom_string1, vcom_string1},
{sizeof vcom_string2, vcom_string2},
{sizeof vcom_string3, vcom_string3}
};
/*
* Handles the GET_DESCRIPTOR callback. All required descriptors must be
* handled here.
*/
static const USBDescriptor *get_descriptor(USBDriver *usbp,
uint8_t dtype,
uint8_t dindex,
uint16_t lang) {
(void)usbp;
(void)lang;
switch (dtype) {
case USB_DESCRIPTOR_DEVICE:
return &vcom_device_descriptor;
case USB_DESCRIPTOR_CONFIGURATION:
return &vcom_configuration_descriptor;
case USB_DESCRIPTOR_STRING:
if (dindex < 4)
return &vcom_strings[dindex];
}
return NULL;
}
/**
* @brief IN EP1 state.
*/
static USBInEndpointState ep1instate;
/**
* @brief OUT EP1 state.
*/
static USBOutEndpointState ep1outstate;
/**
* @brief EP1 initialization structure (both IN and OUT).
*/
static const USBEndpointConfig ep1config = {
USB_EP_MODE_TYPE_BULK,
NULL,
sduDataTransmitted,
sduDataReceived,
0x0040,
0x0040,
&ep1instate,
&ep1outstate,
2,
NULL
};
/**
* @brief IN EP2 state.
*/
static USBInEndpointState ep2instate;
/**
* @brief EP2 initialization structure (IN only).
*/
static const USBEndpointConfig ep2config = {
USB_EP_MODE_TYPE_INTR,
NULL,
sduInterruptTransmitted,
NULL,
0x0010,
0x0000,
&ep2instate,
NULL,
1,
NULL
};
/*
* Handles the USB driver global events.
*/
static void usb_event(USBDriver *usbp, usbevent_t event) {
switch (event) {
case USB_EVENT_RESET:
return;
case USB_EVENT_ADDRESS:
return;
case USB_EVENT_CONFIGURED:
chSysLockFromIsr();
/* Enables the endpoints specified into the configuration.
Note, this callback is invoked from an ISR so I-Class functions
must be used.*/
usbInitEndpointI(usbp, USBD1_DATA_REQUEST_EP, &ep1config);
usbInitEndpointI(usbp, USBD1_INTERRUPT_REQUEST_EP, &ep2config);
/* Resetting the state of the CDC subsystem.*/
sduConfigureHookI(&SDU1);
chSysUnlockFromIsr();
return;
case USB_EVENT_SUSPEND:
return;
case USB_EVENT_WAKEUP:
return;
case USB_EVENT_STALLED:
return;
}
return;
}
/*
* USB driver configuration.
*/
static const USBConfig usbcfg = {
usb_event,
get_descriptor,
sduRequestsHook,
NULL
};
/*
* Serial over USB driver configuration.
*/
static const SerialUSBConfig serusbcfg = {
&USBD1,
USBD1_DATA_REQUEST_EP,
USBD1_DATA_AVAILABLE_EP,
USBD1_INTERRUPT_REQUEST_EP
};
/*===========================================================================*/
/* Command line related. */
/*===========================================================================*/
#define SHELL_WA_SIZE THD_WA_SIZE(2048)
#define TEST_WA_SIZE THD_WA_SIZE(256)
static void cmd_mem(BaseSequentialStream *chp, int argc, char *argv[]) {
size_t n, size;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: mem\r\n");
return;
}
n = chHeapStatus(NULL, &size);
chprintf(chp, "core free memory : %u bytes\r\n", chCoreStatus());
chprintf(chp, "heap fragments : %u\r\n", n);
chprintf(chp, "heap free total : %u bytes\r\n", size);
}
static void cmd_threads(BaseSequentialStream *chp, int argc, char *argv[]) {
static const char *states[] = {THD_STATE_NAMES};
Thread *tp;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: threads\r\n");
return;
}
chprintf(chp, " addr stack prio refs state time\r\n");
tp = chRegFirstThread();
do {
chprintf(chp, "%.8lx %.8lx %4lu %4lu %9s %lu\r\n",
(uint32_t)tp, (uint32_t)tp->p_ctx.r13,
(uint32_t)tp->p_prio, (uint32_t)(tp->p_refs - 1),
states[tp->p_state], (uint32_t)tp->p_time);
tp = chRegNextThread(tp);
} while (tp != NULL);
}
static void cmd_test(BaseSequentialStream *chp, int argc, char *argv[]) {
Thread *tp;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: test\r\n");
return;
}
tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriority(),
TestThread, chp);
if (tp == NULL) {
chprintf(chp, "out of memory\r\n");
return;
}
chThdWait(tp);
}
static void cmd_tree(BaseSequentialStream *chp, int argc, char *argv[]) {
FRESULT err;
uint32_t clusters;
FATFS *fsp;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: tree\r\n");
return;
}
if (!fs_ready) {
chprintf(chp, "File System not mounted\r\n");
return;
}
err = f_getfree("/", &clusters, &fsp);
if (err != FR_OK) {
chprintf(chp, "FS: f_getfree() failed\r\n");
return;
}
chprintf(chp,
"FS: %lu free clusters, %lu sectors per cluster, %lu bytes free\r\n",
clusters, (uint32_t)SDC_FS.csize,
clusters * (uint32_t)SDC_FS.csize * (uint32_t)MMCSD_BLOCK_SIZE);
fbuff[0] = 0;
scan_files(chp, (char *)fbuff);
}
static const ShellCommand commands[] = {
{"mem", cmd_mem},
{"threads", cmd_threads},
{"test", cmd_test},
{"tree", cmd_tree},
{NULL, NULL}
};
static const ShellConfig shell_cfg1 = {
(BaseSequentialStream *)&SDU1,
commands
};
/*===========================================================================*/
/* Main and generic code. */
/*===========================================================================*/
Servo servo1 = {
GPIOE,
GPIOE_PIN5,
&PWMD9,
0x0,
1,
20000
};
/*
* Card insertion event.
*/
static void InsertHandler(eventid_t id) {
FRESULT err;
(void)id;
/*
* On insertion SDC initialization and FS mount.
*/
if (sdcConnect(&SDCD1))
return;
err = f_mount(0, &SDC_FS);
if (err != FR_OK) {
sdcDisconnect(&SDCD1);
return;
}
fs_ready = TRUE;
}
/*
* Card removal event.
*/
static void RemoveHandler(eventid_t id) {
(void)id;
sdcDisconnect(&SDCD1);
fs_ready = FALSE;
}
/*
* GERIKON mover thread
*/
static WORKING_AREA(waGerikon, 128);
static msg_t Thread2(void *arg)
{
UINT i;
(void)arg;
chRegSetThreadName("gerikon");
servoInit(&servo1);
if( PWMD9.state == PWM_READY )
{
while(TRUE)
{
for(i = 1 ; i < 20000 ; i+=50)
{
servoSetValue(&servo1, i);
chThdSleepMilliseconds(200);
}
}
}
return 0;
}
/*
* Green LED blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waBlinker, 128);
static msg_t Thread1(void *arg)
{
(void)arg;
chRegSetThreadName("blinker");
palClearPad(GPIOG, GPIOG_PIN8);
palSetPad(GPIOC, GPIOC_LED);
while (TRUE)
{
if (palReadPad(GPIOG, GPIOG_PIN8) == PAL_HIGH)
{
palClearPad(GPIOC, GPIOC_LED); // LOW_LEVEL
chThdSleepMilliseconds(1);
}
palClearPad(GPIOG, GPIOG_PIN8);
palSetPad(GPIOC, GPIOC_LED);
}
return (msg_t)0;
}
/*
* Application entry point.
*/
int main(void) {
static Thread *shelltp = NULL;
static const evhandler_t evhndl[] = {
InsertHandler,
RemoveHandler
};
struct EventListener el0, el1;
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
chSysInit();
/*
* Initializes a serial-over-USB CDC driver.
*/
sduObjectInit(&SDU1);
sduStart(&SDU1, &serusbcfg);
/*
* Activates the USB driver and then the USB bus pull-up on D+.
* Note, a delay is inserted in order to not have to disconnect the cable
* after a reset.
*/
usbDisconnectBus(serusbcfg.usbp);
chThdSleepMilliseconds(1500);
usbStart(serusbcfg.usbp, &usbcfg);
usbConnectBus(serusbcfg.usbp);
/*
* Shell manager initialization.
*/
shellInit();
/*
* Activates the serial driver 6 and SDC driver 1 using default
* configuration.
*/
sdStart(&SD6, NULL);
sdcStart(&SDCD1, NULL);
/*
* Activates the card insertion monitor.
*/
tmr_init(&SDCD1);
/*
* Creates the blinker thread.
*/
//chThdCreateStatic(waBlinker, sizeof(waBlinker), NORMALPRIO +3, Thread1, NULL);
/*
* Activates the GERIKON thread
*/
chThdCreateStatic(waGerikon, sizeof(waGerikon), NORMALPRIO, Thread2, NULL);
/*
* Creates the LWIP threads (it changes priority internally).
*/
chThdCreateStatic(wa_lwip_thread, LWIP_THREAD_STACK_SIZE, NORMALPRIO + 2,
lwip_thread, NULL);
/*
* Creates the HTTP thread (it changes priority internally).
*/
chThdCreateStatic(wa_http_server, sizeof(wa_http_server), NORMALPRIO + 1,
http_server, NULL);
/*
* Normal main() thread activity, in this demo it does nothing except
* sleeping in a loop and listen for events.
*/
chEvtRegister(&inserted_event, &el0, 0);
chEvtRegister(&removed_event, &el1, 1);
while (TRUE) {
if (!shelltp && (SDU1.config->usbp->state == USB_ACTIVE))
shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);
else if (chThdTerminated(shelltp)) {
chThdRelease(shelltp); /* Recovers memory of the previous shell. */
shelltp = NULL; /* Triggers spawning of a new shell. */
}
if (palReadPad(GPIOA, GPIOA_BUTTON_WKUP) != 0) {
}
chEvtDispatch(evhndl, chEvtWaitOneTimeout(ALL_EVENTS, MS2ST(500)));
}
}
Servo.h
Code: Select all
/*
* ChibiOS/Servo is a small library to easily interface RC servos with ChibiOS/RT.
*
* BSD licensed
*
* Author: Joel Bodenmann aka Tectu <[email protected]>
*/
#ifndef _SERVO_H_
#define _SERVO_H_
#include "ch.h"
#include "hal.h"
#include "pal.h"
typedef struct Servo_t {
ioportid_t port; // The GPIO port on which the servo is connected
ioportmask_t pin; // The GPIO pin on which the servo is connected
PWMDriver *pwm_driver; // The PWM driver to use
pwmchannel_t pwm_channel; // The PWM channel to use
uint16_t min; // The minimum value the servo shall never go below
uint16_t max; // The maximum value the servo shall never go over
} Servo;
void servoInit(Servo *servo);
void servoSetMin(Servo *servo, uint16_t value);
void servoSetMax(Servo *servo, uint16_t value);
void servoSetValue(Servo *servo, uint16_t value);
uint16_t servoGetMin(Servo *servo);
uint16_t servoGetMax(Servo *servo);
#endif
Servo.cpp
Code: Select all
/*
* ChibiOS/Servo is a small library to easily interface RC servos with ChibiOS/RT.
*
* BSD licensed
*
* Author: Joel Bodenmann aka Tectu <[email protected]>
*/
#include "chconf.h"
#include "mcuconf.h"
#include "ffconf.h"
#include "servo.h"
static PWMConfig pwmcfg = {
1000000, // 1MHz PWM clock frequency
20000, // PWM period 20 milliseconds
NULL, // no callback
{
{PWM_OUTPUT_ACTIVE_HIGH, NULL},
{PWM_OUTPUT_DISABLED, NULL},
{PWM_OUTPUT_DISABLED, NULL},
{PWM_OUTPUT_DISABLED, NULL},
},
0
};
void servoInit(Servo *servo) {
/* create the channel configuration */
PWMChannelConfig chcfg = { PWM_OUTPUT_ACTIVE_HIGH, NULL };
pwmcfg.channels[servo->pwm_channel] = chcfg;
/* configure PAL */
#if defined(STM32F4XX)
palSetPadMode(servo->port, servo->pin, PAL_MODE_ALTERNATE(PAL_STM32_OTYPE_PUSHPULL));
#else
#error "PAL configuration for this device not implemented yet - Please modify servoInit()"
#endif
/* start the PWM unit */
pwmStart(servo->pwm_driver, &pwmcfg);
}
void servoSetValue(Servo *servo, uint16_t value) {
/* a bit of safty here */
if(value > servo->max)
value = servo->max;
if(value < servo->min)
value = servo->min;
pwmEnableChannel(servo->pwm_driver, servo->pwm_channel, (pwmcnt_t)value);
}
void servoSetMax(Servo *servo, uint16_t value) {
servo->max = value;
}
void servoSetMin(Servo *servo, uint16_t value) {
servo->min = value;
}
uint16_t servoGetMax(Servo *servo) {
return (servo->max);
}
uint16_t servoGetMin(Servo *servo) {
return (servo->min);
}
