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correct SYSTICK and RELOAD_CYCLES

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4x-tech
2025-11-20 16:32:17 +08:00
parent a9aa2e19c8
commit a2d2773ace
7 changed files with 50 additions and 147 deletions
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146
3rd/mt6701.c
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@@ -52,116 +52,9 @@ void MT6701_iic_read_angel(void) {
I2C_Stop();
}
// void MT6701_iic_read_angel(void) {
// /* Get I2C clock source and clock divider to use for delay cycle
// calculation */
// DL_I2C_getClockConfig(I2C_1_INST, &gI2CclockConfig);
// switch (gI2CclockConfig.clockSel) {
// case DL_I2C_CLOCK_BUSCLK:
// gClockSelFreq = 32000000;
// break;
// case DL_I2C_CLOCK_MFCLK:
// gClockSelFreq = 4000000;
// break;
// default:
// break;
// }
// /*
// * Calculate number of clock cycles to delay after controller transfer
// initiated
// * gDelayCycles = 3 I2C functional clock cycles
// * gDelayCycles = 3 * I2C clock divider * (CPU clock freq / I2C clock
// freq)
// */
// gDelayCycles =
// (5 * (gI2CclockConfig.divideRatio + 1)) * (CPUCLK_FREQ /
// gClockSelFreq);
// if (DEBUG_ENABLED & DEBUG_MT_ENABLED & DEBUG_I2C) {
// printf("i2c before writing -------\n");
// }
// /*
// * Fill FIFO with data. This example will send a MAX of 8 bytes since it
// * doesn't handle the case where FIFO is full
// */
// DL_I2C_fillControllerTXFIFO(I2C_1_INST, &gTxPacket[0], I2C_TX_PACKET_SIZE);
// /* Wait for I2C to be Idle */
// while (
// !(DL_I2C_getControllerStatus(I2C_1_INST) &
// DL_I2C_CONTROLLER_STATUS_IDLE))
// ;
// /* Send the packet to the controller.
// * This function will send Start + Stop automatically.
// */
// DL_I2C_startControllerTransfer(I2C_1_INST, I2C_TARGET_ADDRESS,
// DL_I2C_CONTROLLER_DIRECTION_TX,
// I2C_TX_PACKET_SIZE);
// if (DEBUG_ENABLED & DEBUG_MT_ENABLED & DEBUG_I2C) {
// printf("i2c writing done -------\n");
// }
// /* Workaround for errata I2C_ERR_13 */
// delay_cycles(gDelayCycles);
// /* Poll until the Controller writes all bytes */
// while (DL_I2C_getControllerStatus(I2C_1_INST) &
// DL_I2C_CONTROLLER_STATUS_BUSY)
// ;
// /* Trap if there was an error */
// if (DL_I2C_getControllerStatus(I2C_1_INST) &
// DL_I2C_CONTROLLER_STATUS_ERROR) {
// gIsI2cError = true;
// if (DEBUG_ENABLED & DEBUG_MT_ENABLED & DEBUG_I2C) {
// printf("i2c error ------------------------------------------\n");
// }
// /* LED will remain high if there is an error */
// __BKPT(0);
// return;
// }
// /* Wait for I2C to be Idle */
// while (
// !(DL_I2C_getControllerStatus(I2C_1_INST) &
// DL_I2C_CONTROLLER_STATUS_IDLE))
// ;
// /* Add delay between transfers */
// delay_cycles(1000);
// if (DEBUG_ENABLED & DEBUG_MT_ENABLED & DEBUG_I2C) {
// printf("i2c before reading -------\n");
// }
// /* Send a read request to Target */
// DL_I2C_startControllerTransfer(I2C_1_INST, I2C_TARGET_ADDRESS,
// DL_I2C_CONTROLLER_DIRECTION_RX,
// I2C_RX_PACKET_SIZE);
// /*
// * Receive all bytes from target. LED will remain high if not all bytes
// * are received
// */
// for (uint8_t i = 0; i < I2C_RX_PACKET_SIZE; i++) {
// while (DL_I2C_isControllerRXFIFOEmpty(I2C_1_INST))
// ;
// gRxPacket[i] = DL_I2C_receiveControllerData(I2C_1_INST);
// }
// if (DEBUG_ENABLED & DEBUG_MT_ENABLED & DEBUG_I2C) {
// printf("i2c reading done -------\n");
// }
// }
volatile float Last_ts = 0.0;
volatile float last_angle = 0.0;
// 单圈值
float GetAngle_NoTrack(struct AS5600_Sensor *AS5600) {
Set_Ang_Sensor(AS5600->Mot_num);
float GetAngle_NoTrack(struct MT6701 *mt6701) {
Set_Ang_Sensor(mt6701->Mot_num);
MT6701_iic_read_angel();
angle = ((int16_t)gRxPacket[0] << 6) | (gRxPacket[1] >> 2);
angle_f_rad = (float)angle * _2PI / 16384;
@@ -172,41 +65,42 @@ float GetAngle_NoTrack(struct AS5600_Sensor *AS5600) {
}
// 多圈值
float GetAngle(struct AS5600_Sensor *AS5600) {
float GetAngle(struct MT6701 *mt6701) {
// float D_Angle = 0.0;
AS5600->Angle = GetAngle_NoTrack(AS5600);
float D_Angle = AS5600->Angle - AS5600->Last_Angle;
mt6701->Angle = GetAngle_NoTrack(mt6701);
float D_Angle = mt6701->Angle - mt6701->Last_Angle;
if (fabs(D_Angle) > (0.8f * 2 * PI)) {
AS5600->full_rotations = AS5600->full_rotations + ((D_Angle > 0) ? -1 : 1);
mt6701->full_rotations = mt6701->full_rotations + ((D_Angle > 0) ? -1 : 1);
}
AS5600->Last_Angle = AS5600->Angle;
mt6701->Last_Angle = mt6701->Angle;
AS5600->Angle = (AS5600->full_rotations * _2PI + AS5600->Last_Angle);
mt6701->Angle = (mt6701->full_rotations * _2PI + mt6701->Last_Angle);
return AS5600->Angle;
return mt6701->Angle;
}
float GetVelocity(struct AS5600_Sensor *AS5600_Vel) {
float GetVelocity(struct MT6701 *mt6701_Vel) {
float dt = 0.0;
float Vel_ts = DL_SYSTICK_getValue();
if (Vel_ts < AS5600_Vel->Last_Vel_ts)
dt = (AS5600_Vel->Last_Vel_ts - Vel_ts) / 9 * 1e-6f;
if (Vel_ts < mt6701_Vel->Last_Vel_ts)
dt = (mt6701_Vel->Last_Vel_ts - Vel_ts) / MCLK_IN_MHZ * 1e-6f;
else
dt = (0xFFFFFF - Vel_ts + AS5600_Vel->Last_Vel_ts) / 9 * 1e-6f;
dt = (RELOAD_CYCLES - Vel_ts + mt6701_Vel->Last_Vel_ts) / MCLK_IN_MHZ *
1e-6f;
if (dt < 0.0001)
dt = 10000;
float Vel_Angle = GetAngle(AS5600_Vel);
float Vel_Angle = GetAngle(mt6701_Vel);
float dv = Vel_Angle - AS5600_Vel->Vel_Last_Angle;
float dv = Vel_Angle - mt6701_Vel->Vel_Last_Angle;
AS5600_Vel->velocity = (Vel_Angle - AS5600_Vel->Vel_Last_Angle) / dt;
mt6701_Vel->velocity = (Vel_Angle - mt6701_Vel->Vel_Last_Angle) / dt;
AS5600_Vel->Last_Vel_ts = Vel_ts;
AS5600_Vel->Vel_Last_Angle = Vel_Angle;
mt6701_Vel->Last_Vel_ts = Vel_ts;
mt6701_Vel->Vel_Last_Angle = Vel_Angle;
return AS5600_Vel->velocity;
return mt6701_Vel->velocity;
}