外围可编程示例

我理解app_easy_timer不会让我到达2Khz采样。然而，即使当我使用app easy定时器的最低可能的时间单位10毫秒也不起作用。下面是使用app_easy_timer编辑的部分。当APP_PERIPHERAL_CTRL_TIMER_DELAY设置为2个时间单位时，它工作得很好，但在使用1后不久断开连接。

#define APP_PERIPHERAL_CTRL_TIMER_DELAY (1) void user_svc1_ctrl_wr_ind_handler(ke_msg_id_t const msgid, struct custs1_val_write_ind const *param, ke_task_id_t const dest_id, ke_task_id_t const src_id) {uint8_t val = 0;memcpy (val,参数[0]- >值,参数- >长度);if (val != CUSTS1_CP_ADC_VAL1_DISABLE) {adc_init(GP_ADC_SE, GP_ADC_SIGN, GP_ADC_ATTN3X);adc_usDelay (20);adc_enable_channel (ADC_CHANNEL_P00);timer_used = app_easy_timer (APP_PERIPHERAL_CTRL_TIMER_DELAY app_adcval1_timer_cb_handler);} else {adc_disable();if (timer_used != EASY_TIMER_INVALID_TIMER) {app_easy_timer_cancel(timer_used);timer_used = EASY_TIMER_INVALID_TIMER;}} void app_adcval1_timer_cb_handler() {struct custs1_val_ntf_ind_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_NTF_REQ, prf_get_task_from_id(TASK_ID_CUSTS1)， TASK_APP, custs1_val_ntf_ind_req, DEF_SVC1_ADC_VAL_1_CHAR_LEN); // ADC value to be sampled static uint16_t sample __attribute__((section("retention_mem_area0"), zero_init)); sample = adc_get_sample(); //req->conhdl = app_env->conhdl; req->handle = SVC1_IDX_ADC_VAL_1_VAL; req->length = DEF_SVC1_ADC_VAL_1_CHAR_LEN; req->notification = true; memcpy(req->value, &sample, DEF_SVC1_ADC_VAL_1_CHAR_LEN); ke_msg_send(req); if (ke_state_get(TASK_APP) == APP_CONNECTED) { // Set it once again until Stop command is received in Control Characteristic timer_used = app_easy_timer(APP_PERIPHERAL_CTRL_TIMER_DELAY, app_adcval1_timer_cb_handler); } }

这里是使用timer0而不是app_easy_timer编辑的部分，它应该能够更快地采样2Khz。但是，当timer0设置为或低于10ms的间隔时，我得到的断开连接和调用platform_reset_func与使用app_easy_timer时相同。这里的间隔设置为20ms，工作正常。但是，如果要更改例如，重新加载到1000（5ms），它将断开连接并调用platform_reset_func。在这两个示例中，用户_cust1_impl.c的其余部分是相同的。

#define no_pwm 0x0 #define重新加载4000 void user_svc1_ctrl_wr_ind_handler（ke_msg_handler（ke_msg_hand_t const msgs，struct custs1_val_write_ind const * param，ke_task_id_t const dest_id，ke_task_id_t const src_id）{uint8_t val = 0;memcpy (val,参数[0]- >值,参数- >长度);if (val != CUSTS1_CP_ADC_VAL1_DISABLE) {adc_init(GP_ADC_SE, GP_ADC_SIGN, GP_ADC_ATTN3X);adc_usDelay (20);adc_enable_channel (ADC_CHANNEL_P00);timer0_stop（）;timer0_register_callback（app_adcval1_timer_cb_handler）;set_tmr_enable（clk_per_reg_tmr_enabled）;set_tmr_div（clk_per_reg_tmr_div_8）;timer0_set_pwm_high_counter（no_pwm）; timer0_set_pwm_low_counter(NO_PWM); timer0_init(TIM0_CLK_FAST, PWM_MODE_ONE, TIM0_CLK_DIV_BY_10); timer0_set_pwm_on_counter(RELOAD); // Enable SWTIM_IRQn irq timer0_enable_irq(); // Start Timer0 timer0_start(); } else { set_tmr_enable(CLK_PER_REG_TMR_DISABLED); adc_disable(); } } void app_adcval1_timer_cb_handler() { struct custs1_val_ntf_ind_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_NTF_REQ, prf_get_task_from_id(TASK_ID_CUSTS1), TASK_APP, custs1_val_ntf_ind_req, DEF_SVC1_ADC_VAL_1_CHAR_LEN); // ADC value to be sampled static uint16_t sample __attribute__((section("retention_mem_area0"), zero_init)); sample = adc_get_sample(); //req->conhdl = app_env->conhdl; req->handle = SVC1_IDX_ADC_VAL_1_VAL; req->length = DEF_SVC1_ADC_VAL_1_CHAR_LEN; req->notification = true; memcpy(req->value, &sample, DEF_SVC1_ADC_VAL_1_CHAR_LEN); ke_msg_send(req); }

谢谢

你好,

我尝试将intv_min和intv_max改为更大的值30-45ms和100-160ms。然而，由于仍然调用platform_reset_func()，这个问题似乎仍然存在。还有什么方法可以提高数据吞吐量吗?