wisetop/microchip-application-pec930-pec930_peripheral
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feat: add control commands for DDS parameters

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This commit is contained in:
Roy_01
2026-03-30 17:22:53 +08:00
parent 7d03c00122
commit 16d792d62b
3 changed files with 87 additions and 38 deletions
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pec930_sdk-v1.0.1/Examples/template/dds/inc/main.h
+8 -7
View File
@@ -44,14 +44,15 @@ extern "C"
// Public Function Definition
//=============================================================================
struct dds_param_t
{
uint32_t phase_acc_base;
uint32_t set_dds_ftw;
int32_t set_dds_amp;
};
struct dds_param_t
{
uint32_t phase_acc_base;
uint32_t set_dds_ftw;
int32_t set_dds_amp;
uint8_t notify_en;
};
extern struct dds_param_t dds;
extern struct dds_param_t dds;
#ifdef __cplusplus
}
pec930_sdk-v1.0.1/Examples/template/dds/src/init.c
+7 -7
View File
@@ -9,7 +9,6 @@
#include "init.h"
#include "isr.h"
//=============================================================================
// Constant Definition
//=============================================================================
@@ -31,11 +30,12 @@ void SYS_Config()
SYSCFG_ClkInitTypeDef SysClkInit = { 0 };
SysClkInit.ClkSource = SYSCFG_ClkSrc_HSI;
SYSCFG_SysClkConfig(&SysClkInit);
// Wait for clock to stabilize after power-on reset
for(volatile uint32_t i = 0; i < 20000; i++);
sys_config_systick(SYS_TICK_1_MS);
sys_delay(3000);
/* Disable ICE I/O */
SYSCFG_SetICEPin2NormalIO(true);
gpio_config();
opa_config();
@@ -241,9 +241,9 @@ void uart_config()
uart_init.Mode = UART_Mode_TxRx;
UART_Init(UART0, &uart_init);
UART_Start(UART0);
// Wait for UART to be ready after initialization
for(volatile uint32_t i = 0; i < 10000; i++);
for (volatile uint32_t i = 0; i < 10000; i++);
UART_ITConfig(UART0, UART_FLAG_RXNE, ENABLE);
{ /* Configure TIM interrupts */
pec930_sdk-v1.0.1/Examples/template/dds/src/main.c
+72 -24
View File
@@ -9,6 +9,7 @@
* @license
* @description
*/
#include <stdlib.h>
#include <string.h>
#include "main.h"
@@ -39,8 +40,6 @@ const uint16_t pwm_table[PWM_TABLE_SIZE]
95, 53, 24, 6, 0, 6, 24, 53, 95, 147, 210,
283, 366, 457, 555, 660, 771, 887, 1006, 1127 };
// 64-point sine wave lookup table (-2048-2047 range)
// Sine_table[i] = sin(i*2*pi/64)*(4095/2) where i = 0 to 63
// Use sine_amplitude parameter to scale to desired duty cycle range later
@@ -74,18 +73,18 @@ const int16_t LUT_cos[64]
struct dds_cal_param
{
uint32_t phase_acc;
uint8_t lut_idx;
uint8_t nquadrant;
uint8_t last_quadrant;
int16_t lut_sin_val;
int16_t lut_cos_val;
uint16_t duty;
uint32_t phase_acc;
uint8_t lut_idx;
uint8_t nquadrant;
uint8_t last_quadrant;
int16_t lut_sin_val;
int16_t lut_cos_val;
uint16_t duty;
};
struct dds_param_t dds ={0};
struct dds_param_t dds = { 0 };
#define PHASE_COUNT 3
const uint32_t phase_offset[PHASE_COUNT] = { 0, 1398101, 2796203 };
const uint32_t phase_offset[PHASE_COUNT] = { 0, 1398101, 2796203 };
static struct dds_cal_param phase[PHASE_COUNT] = { 0 };
void dds_pwm_duty_cycle_update(void)
@@ -105,7 +104,8 @@ void dds_pwm_duty_cycle_update(void)
p->nquadrant = p->lut_idx >> 4;
p->lut_sin_val = LUT_sin[p->lut_idx];
p->lut_cos_val = LUT_cos[p->lut_idx];
p->duty = (((int32_t)p->lut_sin_val * dds.set_dds_amp) >> 18) + 1250; // 0~2500 duty cycle range
p->duty = (((int32_t)p->lut_sin_val * dds.set_dds_amp) >> 18)
+ 1250; // 0~2500 duty cycle range
}
pwm_set_duty(phase[0].duty, phase[1].duty, phase[2].duty);
@@ -143,12 +143,15 @@ static void cmd_parser(char *data, uint32_t len)
{
printf("FW_VER_1.0.0_20260320\r\n");
}
else if (strncmp(data, "pwm_enable", 10) == 0)
else if (strncmp(data, "dds_init", 8) == 0)
{
memset(phase, 0, sizeof(phase));
dds.phase_acc_base = 0;
dds.set_dds_ftw = 1740;
dds.set_dds_amp = 160000;
dds.set_dds_ftw = 174;
dds.set_dds_amp = 0;
}
else if (strncmp(data, "pwm_enable", 10) == 0)
{
pwm_enable();
printf("PWM enabled.\r\n");
}
@@ -157,6 +160,49 @@ static void cmd_parser(char *data, uint32_t len)
pwm_disable();
printf("PWM disabled.\r\n");
}
else if (strncmp(data, "dds_amp++", 9) == 0)
{
dds.set_dds_amp++;
printf("dds_amp++\r\n");
}
else if (strncmp(data, "dds_amp--", 9) == 0)
{
dds.set_dds_amp--;
printf("dds_amp--\r\n");
}
else if (strncmp(data, "dds_ftw++", 9) == 0)
{
dds.set_dds_ftw++;
printf("dds_ftw++\r\n");
}
else if (strncmp(data, "dds_ftw--", 9) == 0)
{
dds.set_dds_ftw--;
printf("dds_ftw--\r\n");
}
else if (strncmp(data, "dds_amp:", 8) == 0)
{
dds.set_dds_amp = atoi(data + 8);
printf("dds_amp set to %d\r\n", dds.set_dds_amp);
}
else if (strncmp(data, "dds_ftw:", 8) == 0)
{
dds.set_dds_ftw = atoi(data + 8);
printf("dds_ftw set to %d\r\n", dds.set_dds_ftw);
}
else if (strncmp(data, "notify_en:", 10) == 0)
{
dds.notify_en = atoi(data + 10);
if (dds.notify_en)
{
printf("Notification enabled.\r\n");
}
else
{
printf("Notification disabled.\r\n");
}
}
else
{
printf("Unknown command. Type 'help' for available commands.\r\n");
@@ -166,21 +212,24 @@ static void cmd_parser(char *data, uint32_t len)
int main(void)
{
uint16_t base_idx = 0;
uint32_t timer = sys_get_tick();
uint32_t timer;
SYS_Config();
printf("This is a demo project: JF_02\n");
#ifdef ENABLE_DDS
pwm_set_duty(1250, 1250, 1250);
dds.phase_acc_base = 0;
dds.set_dds_ftw = 1740;
dds.set_dds_amp = 160000;
dds.set_dds_ftw = 174;
dds.set_dds_amp = 0;
pwm_enable();
#else
uvw_set_duty(base_idx);
pwm_enable();
#endif
timer = sys_get_tick();
while (1)
{
if (stringComplete)
@@ -189,16 +238,15 @@ int main(void)
stringComplete = false;
}
if (sys_get_tick() - timer >= 1)
{
printf("%d tick\n", sys_get_tick());
timer = sys_get_tick();
}
#ifdef ENABLE_DDS
if (flag_24Khz_timer)
{
dds_pwm_duty_cycle_update();
if (dds.notify_en)
{
printf("%d tick: %d, %d, %d\n", sys_get_tick(), phase[0].duty,
phase[1].duty, phase[2].duty);
}
flag_24Khz_timer = false;
}
#else