Files
edgetx-gx12/src/pulses_arm.cpp
T
bsongis@gmail.com 34b56368dd [simu] Traces allowed in SIMU mode
[stock] Flash saving (around 50bytes)
[gruvin9x / sky9x / taranis] No "Restore Model" on non empty slots
[taranis] Failsafe sent in PXX protocol
2013-03-26 19:39:52 +00:00

633 lines
17 KiB
C++

/*
* Authors (alphabetical order)
* - Andre Bernet <bernet.andre@gmail.com>
* - Andreas Weitl
* - Bertrand Songis <bsongis@gmail.com>
* - Bryan J. Rentoul (Gruvin) <gruvin@gmail.com>
* - Cameron Weeks <th9xer@gmail.com>
* - Erez Raviv
* - Gabriel Birkus
* - Jean-Pierre Parisy
* - Karl Szmutny
* - Michael Blandford
* - Michal Hlavinka
* - Pat Mackenzie
* - Philip Moss
* - Rob Thomson
* - Romolo Manfredini <romolo.manfredini@gmail.com>
* - Thomas Husterer
*
* opentx is based on code named
* gruvin9x by Bryan J. Rentoul: http://code.google.com/p/gruvin9x/,
* er9x by Erez Raviv: http://code.google.com/p/er9x/,
* and the original (and ongoing) project by
* Thomas Husterer, th9x: http://code.google.com/p/th9x/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*
*/
#include "opentx.h"
uint8_t s_pulses_paused = 0;
uint8_t s_current_protocol = 255;
uint32_t failsafeCounter = 100;
uint8_t pxxFlag = 0;
uint16_t ppmStream[20] = { 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3400, 9000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } ;
uint16_t ppm2Stream[20] = { 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3400, 9000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } ;
#if defined(PCBSKY9X)
volatile uint32_t ppmStreamIndex = 0 ; // Modified in interrupt routine
volatile uint32_t ppm2StreamIndex = 0 ; // Modified in interrupt routine
uint8_t Bit_pulses[64] ; // Likely more than we need
uint8_t *Pulses2MHzptr ;
#else
uint16_t pxxStream[400] ; // Transisitions
uint16_t *pxxStreamPtr ;
uint16_t PxxValue ;
#endif
// DSM2 control bits
#define DSM2_CHANS 6
#define BIND_BIT 0x80
#define RANGECHECK_BIT 0x20
#define FRANCE_BIT 0x10
#define DSMX_BIT 0x08
#define BAD_DATA 0x47
uint8_t Serial_byte ;
uint8_t Serial_bit_count;
uint8_t Serial_byte_count ;
void setupPulses();
void setupPulsesDsm2(uint8_t chns);
void setupPulsesPXX();
void startPulses()
{
// TODO a single call to setupPulses() should be ok!
#if defined(PCBSKY9X)
init_main_ppm(3000, 1) ; // Default for now, initial period 1.5 mS, output on
#else
init_main_ppm();
#endif
}
#if defined(PCBSKY9X)
#define PPM_PORT_PARAM uint32_t ppmPort
#else
#define PPM_PORT_PARAM
#endif
void setupPulsesPPM(PPM_PORT_PARAM) // Don't enable interrupts through here
{
#if defined(PCBSKY9X)
register Pwm *pwmptr = PWM;
#endif
int16_t PPM_range = g_model.extendedLimits ? 640 * 2 : 512 * 2; //range of 0.7..1.7msec
// Total frame length = 22.5msec
// each pulse is 0.7..1.7ms long with a 0.3ms stop tail
// The pulse ISR is 2mhz that's why everything is multiplied by 2
#if defined(PCBSKY9X)
uint32_t pwmCh;
uint16_t * ptr;
uint32_t firstCh, lastCh;
if (ppmPort == 0) {
pwmCh = 3;
ptr = ppmStream;
firstCh = g_model.ppmSCH;
lastCh = min<uint32_t>(NUM_CHNOUT, firstCh + 8 + (g_model.ppmNCH * 2));
}
else {
pwmCh = 1;
ptr = ppm2Stream;
firstCh = g_model.ppm2SCH;
lastCh = min<uint32_t>(NUM_CHNOUT, firstCh + 8 + (g_model.ppm2NCH * 2));
}
#else
#define firstCh 0
uint32_t lastCh = 8 + g_model.ppmNCH * 2; //Channels *2
uint16_t * ptr = ppmStream;
#endif
#if defined(PCBSKY9X)
pwmptr->PWM_CH_NUM[pwmCh].PWM_CDTYUPD = (g_model.ppmDelay * 50 + 300) * 2; //Stoplen *2
if (g_model.pulsePol)
pwmptr->PWM_CH_NUM[pwmCh].PWM_CMR |= 0x00000200 ; // CPOL
else
pwmptr->PWM_CH_NUM[pwmCh].PWM_CMR &= ~0x00000200 ; // CPOL
#endif
uint32_t rest = 22500u * 2; //Minimum Framelen=22.5 ms
rest += (int32_t(g_model.ppmFrameLength)) * 1000;
for (uint32_t i=firstCh; i<lastCh; i++) {
int16_t v = limit((int16_t)-PPM_range, channelOutputs[i], (int16_t)PPM_range) + 2*PPM_CH_CENTER(i);
rest -= v;
*ptr++ = v; /* as Pat MacKenzie suggests */
}
rest = (rest > 65535) ? 65535 : rest;
*ptr = rest;
*(ptr + 1) = 0;
#if defined(PCBTARANIS)
TIM1->CCR2 = rest - 1000 ; // Update time
TIM1->CCR1 = (g_model.ppmDelay*50+300)*2 ;
#endif
}
const uint16_t CRCTable[]=
{
0x0000,0x1189,0x2312,0x329b,0x4624,0x57ad,0x6536,0x74bf,
0x8c48,0x9dc1,0xaf5a,0xbed3,0xca6c,0xdbe5,0xe97e,0xf8f7,
0x1081,0x0108,0x3393,0x221a,0x56a5,0x472c,0x75b7,0x643e,
0x9cc9,0x8d40,0xbfdb,0xae52,0xdaed,0xcb64,0xf9ff,0xe876,
0x2102,0x308b,0x0210,0x1399,0x6726,0x76af,0x4434,0x55bd,
0xad4a,0xbcc3,0x8e58,0x9fd1,0xeb6e,0xfae7,0xc87c,0xd9f5,
0x3183,0x200a,0x1291,0x0318,0x77a7,0x662e,0x54b5,0x453c,
0xbdcb,0xac42,0x9ed9,0x8f50,0xfbef,0xea66,0xd8fd,0xc974,
0x4204,0x538d,0x6116,0x709f,0x0420,0x15a9,0x2732,0x36bb,
0xce4c,0xdfc5,0xed5e,0xfcd7,0x8868,0x99e1,0xab7a,0xbaf3,
0x5285,0x430c,0x7197,0x601e,0x14a1,0x0528,0x37b3,0x263a,
0xdecd,0xcf44,0xfddf,0xec56,0x98e9,0x8960,0xbbfb,0xaa72,
0x6306,0x728f,0x4014,0x519d,0x2522,0x34ab,0x0630,0x17b9,
0xef4e,0xfec7,0xcc5c,0xddd5,0xa96a,0xb8e3,0x8a78,0x9bf1,
0x7387,0x620e,0x5095,0x411c,0x35a3,0x242a,0x16b1,0x0738,
0xffcf,0xee46,0xdcdd,0xcd54,0xb9eb,0xa862,0x9af9,0x8b70,
0x8408,0x9581,0xa71a,0xb693,0xc22c,0xd3a5,0xe13e,0xf0b7,
0x0840,0x19c9,0x2b52,0x3adb,0x4e64,0x5fed,0x6d76,0x7cff,
0x9489,0x8500,0xb79b,0xa612,0xd2ad,0xc324,0xf1bf,0xe036,
0x18c1,0x0948,0x3bd3,0x2a5a,0x5ee5,0x4f6c,0x7df7,0x6c7e,
0xa50a,0xb483,0x8618,0x9791,0xe32e,0xf2a7,0xc03c,0xd1b5,
0x2942,0x38cb,0x0a50,0x1bd9,0x6f66,0x7eef,0x4c74,0x5dfd,
0xb58b,0xa402,0x9699,0x8710,0xf3af,0xe226,0xd0bd,0xc134,
0x39c3,0x284a,0x1ad1,0x0b58,0x7fe7,0x6e6e,0x5cf5,0x4d7c,
0xc60c,0xd785,0xe51e,0xf497,0x8028,0x91a1,0xa33a,0xb2b3,
0x4a44,0x5bcd,0x6956,0x78df,0x0c60,0x1de9,0x2f72,0x3efb,
0xd68d,0xc704,0xf59f,0xe416,0x90a9,0x8120,0xb3bb,0xa232,
0x5ac5,0x4b4c,0x79d7,0x685e,0x1ce1,0x0d68,0x3ff3,0x2e7a,
0xe70e,0xf687,0xc41c,0xd595,0xa12a,0xb0a3,0x8238,0x93b1,
0x6b46,0x7acf,0x4854,0x59dd,0x2d62,0x3ceb,0x0e70,0x1ff9,
0xf78f,0xe606,0xd49d,0xc514,0xb1ab,0xa022,0x92b9,0x8330,
0x7bc7,0x6a4e,0x58d5,0x495c,0x3de3,0x2c6a,0x1ef1,0x0f78
};
uint16_t PcmCrc ;
uint8_t PcmOnesCount ;
void crc( uint8_t data )
{
// uint8_t i ;
PcmCrc=(PcmCrc<<8)^(CRCTable[((PcmCrc>>8)^data) & 0xFF]);
}
#if defined(PCBSKY9X)
void put_serial_bit( uint8_t bit )
{
Serial_byte >>= 1 ;
if ( bit & 1 )
{
Serial_byte |= 0x80 ;
}
if ( ++Serial_bit_count >= 8 )
{
*Pulses2MHzptr++ = Serial_byte ;
Serial_bit_count = 0 ;
Serial_byte_count += 1 ;
}
}
// 8uS/bit 01 = 0, 001 = 1
void putPcmPart( uint8_t value )
{
put_serial_bit( 0 ) ;
if ( value )
{
put_serial_bit( 0 ) ;
}
put_serial_bit( 1 ) ;
}
void putPcmFlush()
{
while ( Serial_bit_count != 0 )
{
put_serial_bit( 1 ) ; // Line idle level
}
}
#else
void putPcmPart( uint8_t value )
{
PxxValue += 18 ; // Output 1 for this time
*pxxStreamPtr++ = PxxValue ;
PxxValue += 14 ;
if ( value ) {
PxxValue += 16 ;
}
*pxxStreamPtr++ = PxxValue ; // Output 0 for this time
}
void putPcmFlush()
{
*pxxStreamPtr++ = 18010 ; // Past the 18000 of the ARR
}
#endif
void putPcmBit( uint8_t bit )
{
if ( bit )
{
PcmOnesCount += 1 ;
putPcmPart( 1 ) ;
}
else
{
PcmOnesCount = 0 ;
putPcmPart( 0 ) ;
}
if ( PcmOnesCount >= 5 )
{
putPcmBit( 0 ) ; // Stuff a 0 bit in
}
}
void putPcmByte( uint8_t byte )
{
crc(byte);
for (uint8_t i=0; i<8; i++) {
putPcmBit(byte & 0x80);
byte <<= 1;
}
}
void putPcmHead()
{
// send 7E, do not CRC
// 01111110
putPcmPart( 0 ) ;
putPcmPart( 1 ) ;
putPcmPart( 1 ) ;
putPcmPart( 1 ) ;
putPcmPart( 1 ) ;
putPcmPart( 1 ) ;
putPcmPart( 1 ) ;
putPcmPart( 0 ) ;
}
void setupPulsesPXX()
{
uint16_t chan ;
uint16_t chan_1 ;
#if defined(PCBSKY9X)
Serial_byte = 0 ;
Serial_bit_count = 0 ;
Serial_byte_count = 0 ;
Pulses2MHzptr = Bit_pulses ;
#else
pxxStreamPtr = pxxStream ;
PxxValue = 0 ;
#endif
PcmCrc = 0;
PcmOnesCount = 0;
/* Sync */
putPcmHead();
/* Rx Number */
putPcmByte(g_model.modelId);
/* FLAG1 */
uint8_t flag1;
if (pxxFlag & PXX_SEND_RXNUM) {
flag1 = (g_model.rfProtocol << 6) | (g_eeGeneral.countryCode << 1) | pxxFlag;
}
else {
flag1 = (g_model.rfProtocol << 6) | pxxFlag;
#if defined(PCBTARANIS)
if (g_model.failsafeMode != FAILSAFE_HOLD) {
if (failsafeCounter-- == 0) {
failsafeCounter = 1000;
flag1 |= PXX_SEND_FAILSAFE;
}
if (failsafeCounter == 0 && g_model.ppmNCH > 0) {
flag1 |= PXX_SEND_FAILSAFE;
}
}
#endif
}
putPcmByte(flag1);
/* FLAG2 */
putPcmByte(0);
/* PPM */
static uint32_t pass = 0;
uint32_t sendUpperChannels = 0;
if (pass++ & 0x01) {
sendUpperChannels = g_model.ppmNCH*2;
}
for (uint32_t i=0; i<8; i+=2) {
#if defined(PCBTARANIS)
if (flag1 & PXX_SEND_FAILSAFE) {
if (g_model.failsafeMode == FAILSAFE_NOPULSES) {
if (i < sendUpperChannels) {
chan = 3072;
chan_1 = 3072;
}
else {
chan = 1024;
chan_1 = 1024;
}
}
else {
if (i < sendUpperChannels) {
chan = limit(2048, (g_model.failsafeChannels[8+g_model.ppmSCH+i] * 512 / 682) + 3072, 4095);
chan_1 = limit(2048, (g_model.failsafeChannels[8+g_model.ppmSCH+i+1] * 512 / 682) + 3072, 4095);
if (chan == 3072) chan = 3073;
if (chan_1 == 3072) chan_1 = 3073;
}
else {
chan = limit(0, (g_model.failsafeChannels[g_model.ppmSCH+i] * 512 / 682) + 1024, 2047);
chan_1 = limit(0, (g_model.failsafeChannels[g_model.ppmSCH+i+1] * 512 / 682) + 1024, 2047);
if (chan == 1024) chan = 1025;
if (chan_1 == 1024) chan_1 = 1025;
}
}
}
else
#endif
{
if (i < sendUpperChannels) {
chan = limit(2048, (channelOutputs[8+g_model.ppmSCH+i] * 512 / 682) + 3072, 4095);
chan_1 = limit(2048, (channelOutputs[8+g_model.ppmSCH+i+1] * 512 / 682) + 3072, 4095);
}
else {
chan = limit(0, (channelOutputs[g_model.ppmSCH+i] * 512 / 682) + 1024, 2047);
chan_1 = limit(0, (channelOutputs[g_model.ppmSCH+i+1] * 512 / 682) + 1024, 2047);
}
}
putPcmByte(chan); // Low byte of channel
putPcmByte( ( ( chan >> 8 ) & 0x0F ) | ( chan_1 << 4) ) ; // 4 bits each from 2 channels
putPcmByte(chan_1 >> 4); // High byte of channel
}
/* CRC16 */
putPcmByte(0);
chan = PcmCrc;
putPcmByte(chan>>8);
putPcmByte(chan);
/* Sync */
putPcmHead();
putPcmFlush();
}
#if defined(DSM2)
#define BITLEN_DSM2 (8*2) //125000 Baud => 8uS per bit
void sendByteDsm2(uint8_t b) //max 10changes 0 10 10 10 10 1
{
put_serial_bit( 0 ) ; // Start bit
for( uint8_t i=0; i<8; i++) // 8 data Bits
{
put_serial_bit( b & 1 ) ;
b >>= 1 ;
}
put_serial_bit( 1 ) ; // Stop bit
put_serial_bit( 1 ) ; // Stop bit
}
// This is the data stream to send, prepare after 19.5 mS
// Send after 22.5 mS
//static uint8_t *Dsm2_pulsePtr = pulses2MHz.pbyte ;
void setupPulsesDsm2(uint8_t chns)
{
static uint8_t dsmDat[2+6*2]={0xFF,0x00, 0x00,0xAA, 0x05,0xFF, 0x09,0xFF, 0x0D,0xFF, 0x13,0x54, 0x14,0xAA};
uint8_t counter ;
// CSwData &cs = g_model.customSw[NUM_CSW-1];
Serial_byte = 0 ;
Serial_bit_count = 0 ;
Serial_byte_count = 0 ;
Pulses2MHzptr = Bit_pulses ;
// If more channels needed make sure the pulses union/array is large enough
if (dsmDat[0]&BAD_DATA) //first time through, setup header
{
switch(s_current_protocol)
{
case PROTO_DSM2_LP45:
dsmDat[0]= 0x80;
break;
case PROTO_DSM2_DSM2:
dsmDat[0]=0x90;
break;
default:
dsmDat[0]=0x98; //dsmx, bind mode
break;
}
}
if ((dsmDat[0] & BIND_BIT) && (!switchState(SW_TRN))) dsmDat[0] &= ~BIND_BIT; // clear bind bit if trainer not pulled
// TODO find a way to do that, FUNC SWITCH: if ((!(dsmDat[0] & BIND_BIT)) && getSwitch(MAX_DRSWITCH-1, 0, 0)) dsmDat[0] |= RANGECHECK_BIT; // range check function
// else dsmDat[0] &= ~RANGECHECK_BIT;
dsmDat[1]=g_eeGeneral.currModel+1; //DSM2 Header second byte for model match
for(uint8_t i=0; i<chns; i++)
{
uint16_t pulse = limit(0, ((channelOutputs[i]*13)>>5)+512,1023);
dsmDat[2+2*i] = (i<<2) | ((pulse>>8)&0x03);
dsmDat[3+2*i] = pulse & 0xff;
}
for ( counter = 0 ; counter < 14 ; counter += 1 )
{
sendByteDsm2(dsmDat[counter]);
}
for ( counter = 0 ; counter < 16 ; counter += 1 )
{
put_serial_bit( 1 ) ; // 16 extra stop bits
}
}
#endif
#if defined(PCBSKY9X) && !defined(SIMU)
extern "C" void PWM_IRQHandler(void)
{
register Pwm *pwmptr;
register Ssc *sscptr;
uint32_t period;
uint32_t reason;
pwmptr = PWM;
reason = pwmptr->PWM_ISR1 ;
if (reason & PWM_ISR1_CHID3) {
switch (s_current_protocol) // Use the current, don't switch until set_up_pulses
{
case PROTO_PXX:
// Alternate periods of 15.5mS and 2.5 mS
period = pwmptr->PWM_CH_NUM[3].PWM_CPDR;
if (period == 5000) { // 2.5 mS
period = 15500 * 2;
}
else {
period = 5000;
}
pwmptr->PWM_CH_NUM[3].PWM_CPDRUPD = period; // Period in half uS
if (period != 5000) { // 2.5 mS
setupPulses();
}
else {
// Kick off serial output here
sscptr = SSC;
sscptr->SSC_TPR = (uint32_t) Bit_pulses;
sscptr->SSC_TCR = Serial_byte_count;
sscptr->SSC_PTCR = SSC_PTCR_TXTEN; // Start transfers
}
break;
case PROTO_DSM2_LP45:
case PROTO_DSM2_DSM2:
case PROTO_DSM2_DSMX:
// Alternate periods of 19.5mS and 2.5 mS
period = pwmptr->PWM_CH_NUM[3].PWM_CPDR;
if (period == 5000) // 2.5 mS
{
period = 19500 * 2;
}
else {
period = 5000;
}
pwmptr->PWM_CH_NUM[3].PWM_CPDRUPD = period; // Period in half uS
if (period != 5000) // 2.5 mS
{
setupPulses();
}
else {
// Kick off serial output here
sscptr = SSC;
sscptr->SSC_TPR = (uint32_t) Bit_pulses;
sscptr->SSC_TCR = Serial_byte_count;
sscptr->SSC_PTCR = SSC_PTCR_TXTEN; // Start transfers
}
break;
default:
pwmptr->PWM_CH_NUM[3].PWM_CPDRUPD = ppmStream[ppmStreamIndex++]; // Period in half uS
if (ppmStream[ppmStreamIndex] == 0) {
ppmStreamIndex = 0;
setupPulses();
}
break;
}
}
if (reason & PWM_ISR1_CHID1) {
pwmptr->PWM_CH_NUM[1].PWM_CPDRUPD = ppm2Stream[ppm2StreamIndex++] ; // Period in half uS
if (ppm2Stream[ppm2StreamIndex] == 0) {
ppm2StreamIndex = 0 ;
setupPulsesPPM(1) ;
}
}
}
#endif
void setupPulses()
{
heartbeat |= HEART_TIMER_PULSES;
#if defined(PCBTARANIS)
uint8_t required_protocol = (g_model.rfProtocol == RF_PROTO_OFF ? PROTO_NONE : PROTO_PXX);
#else
uint8_t required_protocol = g_model.protocol;
#endif
if (s_pulses_paused)
required_protocol = PROTO_NONE;
if (s_current_protocol != required_protocol) {
switch (s_current_protocol) { // stop existing protocol hardware
case PROTO_PXX:
disable_pxx();
break;
#if defined(DSM2)
case PROTO_DSM2_LP45:
case PROTO_DSM2_DSM2:
case PROTO_DSM2_DSMX:
disable_ssc();
break;
#endif
default:
disable_main_ppm();
break;
}
s_current_protocol = required_protocol;
#if defined(PCBTARANIS)
switch (required_protocol) {
case PROTO_PXX:
init_pxx();
break;
default:
init_main_ppm();
break;
}
#elif defined(PCBSKY9X)
switch (required_protocol) { // Start new protocol hardware here
case PROTO_PXX:
init_main_ppm(5000, 0); // Initial period 2.5 mS, output off
init_ssc();
break;
case PROTO_DSM2_LP45:
case PROTO_DSM2_DSM2:
case PROTO_DSM2_DSMX:
init_main_ppm(5000, 0); // Initial period 2.5 mS, output off
init_ssc();
break;
case PROTO_NONE:
init_main_ppm(3000, 0); // Initial period 1.5 mS, output off
break;
default:
init_main_ppm(3000, 1); // Initial period 1.5 mS, output on
break;
}
#endif
}
// Set up output data here
switch (required_protocol) {
case PROTO_PXX:
setupPulsesPXX();
break;
#if defined(DSM2)
case PROTO_DSM2_LP45:
case PROTO_DSM2_DSM2:
case PROTO_DSM2_DSMX:
setupPulsesDsm2(6);
break;
#endif
default:
setupPulsesPPM(); // Don't enable interrupts through here
break ;
}
}