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Allow G2_PWM to be slimmer

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This commit is contained in:
Scott Lahteine 2020-03-25 19:17:50 -05:00
parent adb6334ba0
commit 0175189c34
2 changed files with 105 additions and 44 deletions
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123
Marlin/src/HAL/DUE/fastio/G2_PWM.cpp
View file

@ -46,6 +46,31 @@
#include "G2_PWM.h"
#if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
#define G2_PWM_X 1
#else
#define G2_PWM_X 0
#endif
#if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
#define G2_PWM_Y 1
#else
#define G2_PWM_Y 0
#endif
#if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
#define G2_PWM_Z 1
#else
#define G2_PWM_Z 0
#endif
#if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
#define G2_PWM_E 1
#else
#define G2_PWM_E 0
#endif
#define G2_MASK_X(V) (G2_PWM_X * (V))
#define G2_MASK_Y(V) (G2_PWM_Y * (V))
#define G2_MASK_Z(V) (G2_PWM_Z * (V))
#define G2_MASK_E(V) (G2_PWM_E * (V))
volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
*SODR_B = &PIOB->PIO_SODR,
*CODR_A = &PIOA->PIO_CODR,
@ -55,10 +80,18 @@ PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
void Stepper::digipot_init() {
#if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0); // init pins
#endif
#if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
#endif
#if G2_PWM_Z
OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
#endif
#if G2_PWM_E
OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
#endif
#define WPKEY (0x50574D << 8) // “PWM” in ASCII
#define WPCMD_DIS_SW 0 // command to disable Write Protect SW
@ -71,30 +104,51 @@ void Stepper::digipot_init() {
PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW; // enable setting of all PWM registers
PWM->PWM_CLK = PWM_CLOCK_F; // enable CLK_A and set it to 1MHz, leave CLK_B disabled
PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011; // set channel 0 to Clock A input & to left aligned
PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011; // set channel 1 to Clock A input & to left aligned
PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011; // set channel 2 to Clock A input & to left aligned
PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011; // set channel 3 to Clock A input & to left aligned
PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011; // set channel 4 to Clock A input & to left aligned
if (G2_PWM_X) PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011; // set channel 1 to Clock A input & to left aligned
if (G2_PWM_Y) PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011; // set channel 2 to Clock A input & to left aligned
if (G2_PWM_Z) PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011; // set channel 3 to Clock A input & to left aligned
if (G2_PWM_E) PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011; // set channel 4 to Clock A input & to left aligned
PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US; // set channel 0 Period
PWM->PWM_IER2 = PWM_IER1_CHID0; // generate interrupt when counter0 overflows
PWM->PWM_IER2 = PWM_IER2_CMPM0 | PWM_IER2_CMPM1 | PWM_IER2_CMPM2 | PWM_IER2_CMPM3 | PWM_IER2_CMPM4; // generate interrupt on compare event
PWM->PWM_IER2 = PWM_IER2_CMPM0
| G2_MASK_X(PWM_IER2_CMPM1)
| G2_MASK_Y(PWM_IER2_CMPM2)
| G2_MASK_Z(PWM_IER2_CMPM3)
| G2_MASK_E(PWM_IER2_CMPM4)
; // generate interrupt on compare event
PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1])); // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2])); // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1])); // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2])); // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
PWM->PWM_CMP[1].PWM_CMPM = 0x0001; // enable compare event
PWM->PWM_CMP[2].PWM_CMPM = 0x0001; // enable compare event
PWM->PWM_CMP[3].PWM_CMPM = 0x0001; // enable compare event
PWM->PWM_CMP[4].PWM_CMPM = 0x0001; // enable compare event
if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPM = 0x0001; // enable compare event
if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPM = 0x0001; // enable compare event
if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPM = 0x0001; // enable compare event
if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPM = 0x0001; // enable compare event
PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0 | PWM_SCM_SYNC1 | PWM_SCM_SYNC2 | PWM_SCM_SYNC3 | PWM_SCM_SYNC4; // sync 1-4 with 0, use mode 0 for updates
PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0
| G2_MASK_X(PWM_SCM_SYNC1)
| G2_MASK_Y(PWM_SCM_SYNC2)
| G2_MASK_Z(PWM_SCM_SYNC3)
| G2_MASK_E(PWM_SCM_SYNC4)
; // sync 1-4 with 0, use mode 0 for updates
PWM->PWM_ENA = PWM_ENA_CHID0 | PWM_ENA_CHID1 | PWM_ENA_CHID2 | PWM_ENA_CHID3 | PWM_ENA_CHID4; // enable the channels used by G2
PWM->PWM_IER1 = PWM_IER1_CHID0 | PWM_IER1_CHID1 | PWM_IER1_CHID2 | PWM_IER1_CHID3 | PWM_IER1_CHID4; // enable interrupts for the channels used by G2
PWM->PWM_ENA = PWM_ENA_CHID0
| G2_MASK_X(PWM_ENA_CHID1)
| G2_MASK_Y(PWM_ENA_CHID2)
| G2_MASK_Z(PWM_ENA_CHID3)
| G2_MASK_E(PWM_ENA_CHID4)
; // enable channels used by G2
PWM->PWM_IER1 = PWM_IER1_CHID0
| G2_MASK_X(PWM_IER1_CHID1)
| G2_MASK_Y(PWM_IER1_CHID2)
| G2_MASK_Z(PWM_IER1_CHID3)
| G2_MASK_E(PWM_IER1_CHID4)
; // enable interrupts for channels used by G2
NVIC_EnableIRQ(PWM_IRQn); // Enable interrupt handler
NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0)); // normal priority for PWM module (can stand some jitter on the Vref signals)
@ -105,19 +159,26 @@ void Stepper::digipot_current(const uint8_t driver, const int16_t current) {
if (!(PWM->PWM_CH_NUM[0].PWM_CPRD == PWM_PERIOD_US)) digipot_init(); // Init PWM system if needed
switch (driver) {
case 0: PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update X & Y
PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001; // enable compare event
PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001; // enable compare event
PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
case 0:
if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update X & Y
if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001; // enable compare event
if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001; // enable compare event
if (G2_PWM_X || G2_PWM_Y) PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
break;
case 1: PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update Z
case 1:
if (G2_PWM_Z) {
PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update Z
PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001; // enable compare event
PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
}
break;
default:PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update E
default:
if (G2_PWM_E) {
PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current)); // update E
PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001; // enable compare event
PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
}
break;
}
}
@ -128,16 +189,16 @@ void PWM_Handler() {
PWM_ISR1_STATUS = PWM->PWM_ISR1;
PWM_ISR2_STATUS = PWM->PWM_ISR2;
if (PWM_ISR1_STATUS & PWM_IER1_CHID0) { // CHAN_0 interrupt
*ISR_table[0].set_register = ISR_table[0].write_mask; // set X to active
*ISR_table[1].set_register = ISR_table[1].write_mask; // set Y to active
*ISR_table[2].set_register = ISR_table[2].write_mask; // set Z to active
*ISR_table[3].set_register = ISR_table[3].write_mask; // set E to active
if (G2_PWM_X) *ISR_table[0].set_register = ISR_table[0].write_mask; // set X to active
if (G2_PWM_Y) *ISR_table[1].set_register = ISR_table[1].write_mask; // set Y to active
if (G2_PWM_Z) *ISR_table[2].set_register = ISR_table[2].write_mask; // set Z to active
if (G2_PWM_E) *ISR_table[3].set_register = ISR_table[3].write_mask; // set E to active
}
else {
if (PWM_ISR2_STATUS & PWM_IER2_CMPM1) *ISR_table[0].clr_register = ISR_table[0].write_mask; // set X to inactive
if (PWM_ISR2_STATUS & PWM_IER2_CMPM2) *ISR_table[1].clr_register = ISR_table[1].write_mask; // set Y to inactive
if (PWM_ISR2_STATUS & PWM_IER2_CMPM3) *ISR_table[2].clr_register = ISR_table[2].write_mask; // set Z to inactive
if (PWM_ISR2_STATUS & PWM_IER2_CMPM4) *ISR_table[3].clr_register = ISR_table[3].write_mask; // set E to inactive
if (G2_PWM_X && (PWM_ISR2_STATUS & PWM_IER2_CMPM1)) *ISR_table[0].clr_register = ISR_table[0].write_mask; // set X to inactive
if (G2_PWM_Y && (PWM_ISR2_STATUS & PWM_IER2_CMPM2)) *ISR_table[1].clr_register = ISR_table[1].write_mask; // set Y to inactive
if (G2_PWM_Z && (PWM_ISR2_STATUS & PWM_IER2_CMPM3)) *ISR_table[2].clr_register = ISR_table[2].write_mask; // set Z to inactive
if (G2_PWM_E && (PWM_ISR2_STATUS & PWM_IER2_CMPM4)) *ISR_table[3].clr_register = ISR_table[3].write_mask; // set E to inactive
}
return;
}

2
Marlin/src/module/configuration_store.cpp
View file

@ -2696,7 +2696,7 @@ void MarlinSettings::reset() {
#if HAS_MOTOR_CURRENT_PWM
constexpr uint32_t tmp_motor_current_setting[3] = PWM_MOTOR_CURRENT;
for (uint8_t q = 3; q--;)
LOOP_L_N(q, 3)
stepper.digipot_current(q, (stepper.motor_current_setting[q] = tmp_motor_current_setting[q]));
#endif