mirror of
https://github.com/EFeru/hoverboard-sideboard-hack-GD.git
synced 2025-08-18 09:36:11 +00:00
Initial commit
This commit is contained in:
EmanuelFeru
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/*!
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\file gd32f1x0_libopt.h
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\brief library optional for gd32f1x0
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*/
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/*
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Copyright (C) 2017 GigaDevice
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2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
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2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
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2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
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2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
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*/
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#ifndef GD32F1X0_LIBOPT_H
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#define GD32F1X0_LIBOPT_H
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#include "gd32f1x0_adc.h"
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#include "gd32f1x0_cec.h"
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#include "gd32f1x0_crc.h"
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#include "gd32f1x0_cmp.h"
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#include "gd32f1x0_dac.h"
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#include "gd32f1x0_dbg.h"
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#include "gd32f1x0_dma.h"
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#include "gd32f1x0_exti.h"
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#include "gd32f1x0_fmc.h"
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#include "gd32f1x0_gpio.h"
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#include "gd32f1x0_syscfg.h"
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#include "gd32f1x0_i2c.h"
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#include "gd32f1x0_fwdgt.h"
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#include "gd32f1x0_pmu.h"
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#include "gd32f1x0_rcu.h"
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#include "gd32f1x0_rtc.h"
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#include "gd32f1x0_spi.h"
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#include "gd32f1x0_timer.h"
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#include "gd32f1x0_usart.h"
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#include "gd32f1x0_wwdgt.h"
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#include "gd32f1x0_misc.h"
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#include "gd32f1x0_tsi.h"
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#ifdef GD32F170_190
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#include "gd32f1x0_slcd.h"
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#include "gd32f1x0_opa.h"
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#include "gd32f1x0_ivref.h"
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#include "gd32f1x0_can.h"
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#endif /* GD32F170_190 */
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#endif /* GD32F1X0_LIBOPT_H */
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/*!
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\file main.c
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\brief show how to use TSI to realize key
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*/
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/*
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Copyright (C) 2017 GigaDevice
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2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
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2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
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2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
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2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
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*/
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#include "gd32f1x0.h"
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#include "gd32f1x0_eval.h"
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#include <stdlib.h>
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#include <stdio.h>
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#define THRESHOLD1 0x50
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#define THRESHOLD2 0x50
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/* the current cycle number array of the channel pin */
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uint16_t samplenum[2] = {0,0};
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/* reference value sample array of TSI group2 */
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uint16_t sample_refnum_array2[20] = {0};
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uint16_t sample_refnum_array3[20] = {0};
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/* average value of cycles */
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uint16_t sample_refnum[2] = {0};
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void delay(uint32_t nCount);
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void gpio_config(void);
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void tsi_config(void);
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void led_config(void);
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void tsi_transfer_pin(uint32_t TSI_groupx_pin);
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/*!
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\brief main function
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\param[in] none
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\param[out] none
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\retval none
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*/
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int main(void)
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{
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int i=0;
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/* TSI peripheral and GPIOB periph clock enable */
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rcu_periph_clock_enable(RCU_GPIOB);
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rcu_periph_clock_enable(RCU_TSI);
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/* PB0 TSI_CHCFG_G2P1 SAMPCAP
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PB1 TSI_CHCFG_G2P2 CHANNEL
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PB2 TSI_CHCFG_G2P3 CHANNEL */
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/* configure the GPIO ports */
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gpio_config();
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/* configure the TSI peripheral */
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tsi_config();
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/* configure the LED */
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led_config();
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/* reference cycle value acquisition and processing */
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for(i=0;i<20;i++){
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/* get charge transfer complete cycle number of group2 pin2 */
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tsi_transfer_pin(TSI_CHCFG_G2P2);
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/* check the TSI flag:end of acquisition interrupt */
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if(tsi_interrupt_flag_get(TSI_INT_FLAG_CTC) == (uint8_t)SET){
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/* get charge transfer complete cycle number */
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sample_refnum_array2[i] = tsi_group2_cycle_get();
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}
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/* disable the selected pin as channel pin:pin2 */
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tsi_channel_pin_disable(TSI_CHCFG_G2P2);
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/* get charge transfer complete cycle number of group2 pin3 */
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tsi_transfer_pin(TSI_CHCFG_G2P3);
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if(tsi_interrupt_flag_get(TSI_INT_FLAG_CTC) == (uint8_t)SET){
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sample_refnum_array3[i] = tsi_group2_cycle_get();
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}
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tsi_channel_pin_disable(TSI_CHCFG_G2P3);
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/* delay for a period of time while all banks have been acquired */
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delay(0xFFFF);
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}
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/* sum of sample_refnum_array */
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for(i=1;i<20;i++){
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sample_refnum[0] += sample_refnum_array2[i];
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sample_refnum[1] += sample_refnum_array3[i];
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}
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/* average channel cycle value are obtained */
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sample_refnum[0] = sample_refnum[0]/19;
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sample_refnum[1] = sample_refnum[1]/19;
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while (1){
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/* acquisition group2 pin2 */
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tsi_transfer_pin(TSI_CHCFG_G2P2);
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/* check the TSI flag end of acquisition interrupt */
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if(tsi_interrupt_flag_get(TSI_INT_FLAG_CTC) == (uint8_t)SET){
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/* get charge transfer complete cycle number */
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samplenum[0] = tsi_group2_cycle_get();
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}
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/* light LED1 */
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if((sample_refnum[0]-samplenum[0]) > THRESHOLD1){
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/* group2 pin2 is touched */
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gd_eval_led_on(LED1);
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}else{
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gd_eval_led_off(LED1);
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}
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tsi_channel_pin_disable(TSI_CHCFG_G2P2);
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/* acquisition group2 pin3 */
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tsi_transfer_pin(TSI_CHCFG_G2P3);
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if(tsi_interrupt_flag_get(TSI_INT_FLAG_CTC) == (uint8_t)SET){
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samplenum[1] = tsi_group2_cycle_get();
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}
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/* light LED2 */
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if((sample_refnum[1]-samplenum[1]) > THRESHOLD2){
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/* group2 pin3 is touched */
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gd_eval_led_on(LED2);
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}else{
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gd_eval_led_off(LED2);
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}
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tsi_channel_pin_disable(TSI_CHCFG_G2P3);
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/* delay for a period of time while all banks have been acquired */
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delay(0xFFFF);
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}
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}
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/*!
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\brief insert a delay time
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\param[in] nCount: specifies the delay time length
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\param[out] none
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\retval none
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*/
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void delay(uint32_t ncount)
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{
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for(; ncount != 0; ncount--);
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}
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/*!
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\brief configure the GPIO ports
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\param[in] none
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\param[out] none
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\retval none
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*/
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void gpio_config(void)
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{
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/* GPIO PB0 */
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/* alternate function output open-drain for sampling capacitor IO */
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gpio_mode_set(GPIOB,GPIO_MODE_AF,GPIO_PUPD_NONE,GPIO_PIN_0);
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gpio_output_options_set(GPIOB,GPIO_OTYPE_OD,GPIO_OSPEED_2MHZ,GPIO_PIN_0);
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/* GPIO PB1 GPIO PB2 */
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/* alternate function output push-pull for channel and shield IOs */
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gpio_mode_set(GPIOB,GPIO_MODE_AF,GPIO_PUPD_NONE,GPIO_PIN_1);
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gpio_output_options_set(GPIOB,GPIO_OTYPE_PP,GPIO_OSPEED_2MHZ,GPIO_PIN_1);
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gpio_mode_set(GPIOB,GPIO_MODE_AF,GPIO_PUPD_NONE,GPIO_PIN_2);
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gpio_output_options_set(GPIOB,GPIO_OTYPE_PP,GPIO_OSPEED_2MHZ,GPIO_PIN_2);
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/* connect pin to peripheral */
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gpio_af_set(GPIOB,GPIO_AF_3,GPIO_PIN_0);
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gpio_af_set(GPIOB,GPIO_AF_3,GPIO_PIN_1);
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gpio_af_set(GPIOB,GPIO_AF_3,GPIO_PIN_2);
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}
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/*!
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\brief configure the TSI peripheral
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\param[in] none
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\param[out] none
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\retval none
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*/
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void tsi_config(void)
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{
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/* TSI configure */
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tsi_init(TSI_CTCDIV_DIV8,TSI_CHARGE_4CTCLK,TSI_TRANSFER_8CTCLK,TSI_MAXNUM4095);
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tsi_sofeware_mode_config();
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tsi_sample_pin_enable(TSI_SAMPCFG_G2P1);
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tsi_group_enable(TSI_GCTL_GE2);
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/* disable hysteresis mode */
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tsi_hysteresis_off(TSI_PHM_G2P1|TSI_PHM_G2P2|TSI_PHM_G2P3);
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/* enable TSI */
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tsi_enable();
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}
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/*!
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\brief LEDs configure
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\param[in] none
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\param[out] none
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\retval none
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*/
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void led_config(void)
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{
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/* initialize the LEDs */
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gd_eval_led_init(LED1);
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gd_eval_led_init(LED2);
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/* close all of LEDs */
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gd_eval_led_off(LED1);
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gd_eval_led_off(LED2);
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}
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/*!
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\brief acquisition pin y of group x,x=0..5,y=0..3
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\param[in] tsi_groupx_piny:pin y of group x
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\param[out] none
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\retval none
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*/
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void tsi_transfer_pin(uint32_t tsi_groupx_piny)
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{
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/* configure the TSI Pin Channel Mode */
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tsi_channel_pin_enable(tsi_groupx_piny);
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/* wait capacitors discharge */
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delay(0xD00);
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/* clear both CMCE and CCTCF flags */
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tsi_interrupt_flag_clear(TSI_INT_FLAG_CTC|TSI_INT_FLAG_MNERR);
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/* start a new acquisition */
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tsi_software_start();
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/* wait the specified TSI flag state: MCE or CTCF */
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while(RESET==tsi_interrupt_flag_get(TSI_INT_FLAG_CTC|TSI_INT_FLAG_MNERR));
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}
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@@ -0,0 +1,19 @@
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/*!
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\file readme.txt
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\brief description of touch key
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*/
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/*
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Copyright (C) 2017 GigaDevice
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2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
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2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
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2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
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2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
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*/
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This demo is based on the GD32190R-EVAL board, it shows how to use the TSI to
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perform continuous acquisitions of two channels in group 2. In this demo, touch
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the TouchKey(TK1 or TK2) on the GD32190R-EVAL board, meanwhile, the associated
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LED(LED1 or LED2) is on.
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