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Author SHA1 Message Date
true 6ee4233c2f add fixed auto brightness control option, led brightness options 
jumper 1 will set LEDs to a dimmer level.
jumper 2 will disable LEDs entirely.
jumper 3 will turn the addon and USB ports on and off depending on ambient light level. the levels decided are arbitrary and may be updated with further testing.
 2024-10-23 04:19:13 -07:00
true 5829bc190d add missing project files 2024-10-23 03:33:38 -07:00
true 5f18010bcd get initial code working 
fixed some initial GPIO configuration.
fixed systick interrupt not defined as an interrupt.
fixed any interactions with backup registers causing lockups.
completed RGBLED work.
fixed button handler code.
add currently non-working lightsense code.
 2024-10-22 23:06:18 -07:00
16 changed files with 681 additions and 121 deletions
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gat_stand_fw/.cproject Normal file
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34
gat_stand_fw/.project Normal file
View File

@ -0,0 +1,34 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<projectDescription>
<name>gat_stand_fw</name>
<comment/>
<projects/>
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</projectDescription>

14
gat_stand_fw/.settings/language.settings.xml Normal file
View File

@ -0,0 +1,14 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project>
<configuration id="ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.release.1008047074" name="build_dbg">
<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
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<language-scope id="org.eclipse.cdt.core.gcc"/>
<language-scope id="org.eclipse.cdt.core.g++"/>
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</extension>
</configuration>
</project>

18
gat_stand_fw/.template Normal file
View File

@ -0,0 +1,18 @@
Vendor=WCH
Toolchain=RISC-V
Series=CH32V203
RTOS=NoneOS
MCU=CH32V203C8T6
Link=WCH-Link
PeripheralVersion==2.1
Description==Website: http://www.wch.cn/products/CH32V203.html?\nROM(byte): 64K, SRAM(byte): 20K, CHIP PINS: 48, GPIO PORTS: 37.\nWCH CH32V2 series of mainstream MCUs covers the needs of a large variety of applications in the industrial,medical and consumer markets. High performance with first-class peripherals and low-power,low-voltage operation is paired with a high level of integration at accessible prices with a simple architecture and easy-to-use tools.
Mcu Type=CH32V20x
Address=0x08000000
Target Path=build_dbg\gat_stand_fw.hex
CLKSpeed=2
DebugInterfaceMode=-1
Erase All=true
Program=true
Verify=true
Reset=true
SDIPrintf=false

119
gat_stand_fw/gat_stand_fw.launch
View File

@ -1,61 +1,62 @@
<?xml version="1.0" encoding="UTF-8" ?>
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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72
gat_stand_fw/user/main.c
View File

@ -12,6 +12,7 @@
#include <ch32v20x.h>
#include "src/adc.h"
#include "src/btn.h"
#include "src/gat_gpio.h"
#include "src/port_pwr.h"
@ -22,19 +23,27 @@
void btn_top_push_cb(uint8_t idx)
{
// jumper 3, if set, will manage power by brightness automatically
// only respect the button if this switch isn't set
if (!(btn[DIP3]._mask & BTN_PUSH)) {
gat_toggle();
}
}
void btn_bot_push_cb(uint8_t idx)
{
// jumper 3, if set, will manage power by brightness automatically
// only respect the button if this switch isn't set
if (!(btn[DIP3]._mask & BTN_PUSH)) {
usb2_toggle();
}
}
static inline void systick_init(void)
{
SysTick->CMP = (SystemCoreClock / 256 / 8) - 1; // we want a 256Hz interrupt
SysTick->CMP = (SystemCoreClock / 256) - 1; // we want a 256Hz interrupt
SysTick->CNT = 0; // clear counter
SysTick->CTLR = 0xB; // start counter in /8 mode, enable interrupts, auto-reset counter
SysTick->CTLR = 0xF; // start counter in /1 mode, enable interrupts, auto-reset counter
SysTick->SR = 0; // clear count comparison flag
NVIC_EnableIRQ(SysTicK_IRQn); // enable interrupt
@ -65,33 +74,45 @@ static void gpio_init()
// RGBLED (PA0, PA1, PA2)
RGBLED_PORT->BSHR = RGBLED_PIN_R | RGBLED_PIN_G | RGBLED_PIN_B;
gpio.GPIO_Mode = GPIO_Mode_Out_PP;
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
gpio.GPIO_Pin = RGBLED_PIN_R | RGBLED_PIN_G | RGBLED_PIN_B;
GPIO_Init(RGBLED_PORT, &gpio);
// GAT power enable (PA3)
GAT_EN_PORT->BCR = GAT_EN_PIN;
gpio.GPIO_Mode = GPIO_Mode_Out_PP;
gpio.GPIO_Pin = GAT_EN_PIN;
GPIO_Init(GAT_EN_PORT, &gpio);
// lightsense anode (PA5)
LSENS_A_PORT->BCR = LSENS_A_PIN;
gpio.GPIO_Pin = LSENS_A_PIN;
GPIO_Init(LSENS_A_PORT, &gpio);
// lightsense cathode (PB0)
LSENS_K_PORT->BCR = LSENS_K_PIN;
gpio.GPIO_Pin = LSENS_K_PIN;
GPIO_Init(LSENS_K_PORT, &gpio);
// USB2 power enable (PB4)
USB2_EN_PORT->BCR = USB2_EN_PIN;
gpio.GPIO_Pin = USB2_EN_PIN;
GPIO_Init(USB2_EN_PORT, &gpio);
// GAT overcurrent detect (PA4)
gpio.GPIO_Mode = GPIO_Mode_IPU;
gpio.GPIO_Pin = GAT_OC_PIN;
GPIO_Init(GAT_EN_PORT, &gpio);
// buttons (PB10, PB11) and DIP switches (PB12, PB13, PB14)
gpio.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14;
GPIO_Init(GPIOB, &gpio);
// GAT GPIO will be configured later
// GAT GPIO is configured in gat_gpio.c
// USB PA11, PA12 will be configured later
// USB2 power enable (PB4)
gpio.GPIO_Mode = GPIO_Mode_Out_PP;
gpio.GPIO_Pin = USB2_EN_PIN;
GPIO_Init(USB2_EN_PORT, &gpio);
// unused pins that are used for I2C passthrough
gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
gpio.GPIO_Pin = GPIO_Pin_15;
@ -117,7 +138,7 @@ int main(void)
// enable peripheral clocks
RCC_APB1PeriphClockCmd( RCC_APB1Periph_PWR | RCC_APB1Periph_BKP |
RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1Periph_I2C1 | RCC_APB1Periph_TIM2, ENABLE);
RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA |
RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOD |
RCC_APB2Periph_ADC1, ENABLE);
@ -145,6 +166,9 @@ int main(void)
// start up rgbled
rgbled_init();
// initialize light sense stuff
adc_init();
// finally, get the system tick interrupt going
systick_init();
@ -158,14 +182,40 @@ int main(void)
uint8_t st_tick;
volatile uint32_t uptime;
__attribute__((interrupt("WCH-Interrupt-fast")))
void SysTick_Handler(void)
{
st_tick++;
if (!st_tick) uptime++;
if (!st_tick) {
uptime++;
// jumper 3, if set, will manage power by brightness automatically
if (btn[DIP3]._mask & BTN_PUSH) {
if (adc_get_lsens_coarse() > LSENS_DARK) {
gat_off();
usb2_off();
}
if (adc_get_lsens_coarse() <= LSENS_BRIGHT) {
gat_on();
usb2_on();
}
}
}
// light sensor updating at ~4ms
adc_process_lsens();
// update buttons
btn_poll();
if (!(st_tick & 0x3)) {
rgbled_update();
}
// clear comparison flag
SysTick->SR = 0;
if (SysTick->SR) {
while (1);
}
}

183
gat_stand_fw/user/src/adc.c Normal file
View File

@ -0,0 +1,183 @@
/*
* lightsense.c
*
* Created on: Oct 18, 2024
* Author: true
*/
#include <ch32v20x.h>
#include <stdint.h>
#include "adc.h"
static GPIO_InitTypeDef lsens_gpio = {
.GPIO_Mode = GPIO_Mode_Out_PP,
.GPIO_Pin = LSENS_A_PIN,
.GPIO_Speed = GPIO_Speed_2MHz
};
uint16_t lsens_val;
static uint8_t lsens_mode = LSENS_READING_IDLE;
uint8_t lsens_wait;
uint8_t lsens_coarse = 1;
uint16_t lsens_timeout;
void adc_init()
{
ADC_InitTypeDef adc = {0};
RCC_ADCCLKConfig(RCC_PCLK2_Div4);
ADC_DeInit(ADC1);
adc.ADC_Mode = ADC_Mode_Independent;
adc.ADC_ScanConvMode = DISABLE;
adc.ADC_ContinuousConvMode = DISABLE;
adc.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
adc.ADC_DataAlign = ADC_DataAlign_Right;
adc.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &adc);
ADC_RegularChannelConfig(ADC1, LSENS_ADC_CH, 1, ADC_SampleTime_239Cycles5);
ADC_Cmd(ADC1, ENABLE);
}
void adc_convert()
{
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
void adc_read()
{
uint16_t timeout = 0xfff;
while((!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC)) && timeout) timeout--;
if (timeout) {
lsens_val = ADC_GetConversionValue(ADC1);
}
}
void adc_set_mode_lsens(uint8_t mode)
{
lsens_mode = mode;
if (mode == LSENS_OUTPUT) {
lsens_gpio.GPIO_Mode = GPIO_Mode_Out_PP;
lsens_gpio.GPIO_Pin = LSENS_A_PIN;
GPIO_Init(LSENS_A_PORT, &lsens_gpio);
lsens_gpio.GPIO_Pin = LSENS_K_PIN;
GPIO_Init(LSENS_K_PORT, &lsens_gpio);
}
}
uint8_t adc_get_mode_lsens()
{
return lsens_mode;
}
static void lsens_start()
{
// set anode and cathode low
LSENS_A_PORT->BCR = LSENS_A_PIN;
LSENS_K_PORT->BCR = LSENS_K_PIN;
adc_set_mode_lsens(LSENS_READING_START);
// set cathode high, let it charge
LSENS_K_PORT->BSHR = LSENS_K_PIN;
// set anode low
lsens_gpio.GPIO_Pin = LSENS_A_PIN;
lsens_gpio.GPIO_Mode = GPIO_Mode_IPD;
GPIO_Init(LSENS_A_PORT, &lsens_gpio);
// set cathode as analog input
lsens_gpio.GPIO_Pin = LSENS_K_PIN;
lsens_gpio.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(LSENS_K_PORT, &lsens_gpio);
}
static void lsens_stop()
{
lsens_gpio.GPIO_Mode = GPIO_Mode_Out_PP;
lsens_gpio.GPIO_Pin = LSENS_A_PIN;
GPIO_Init(LSENS_A_PORT, &lsens_gpio);
lsens_gpio.GPIO_Pin = LSENS_K_PIN;
GPIO_Init(LSENS_K_PORT, &lsens_gpio);
lsens_mode = LSENS_READING_IDLE;
}
void adc_process_lsens()
{
if (lsens_mode != LSENS_OUTPUT) {
// do what needs to be done by me to defeat the light enemys
switch (lsens_mode) {
case LSENS_READING_IDLE: {
// prepare LED, wait a little bit
lsens_start();
adc_convert();
lsens_wait = lsens_coarse;
lsens_mode = LSENS_READING_START;
break;
}
case LSENS_READING_START: {
if (!lsens_wait) {
// convert the LED
adc_convert();
lsens_mode = LSENS_READING_WAIT;
}
lsens_wait--;
break;
}
case LSENS_READING_WAIT: {
// read the light sensor value
adc_read();
lsens_stop();
// calculate adjustments
if (lsens_val > LSENS_COARSE_UP) {
lsens_coarse++;
if (lsens_coarse > 0x3f) lsens_coarse = 0x3f;
} else if (lsens_val < LSENS_COARSE_DOWN) {
if (lsens_coarse) lsens_coarse--;
}
lsens_wait = 255 - lsens_coarse;
// wait a bit before doing it again
lsens_mode = LSENS_READING_TIMEOUT;
break;
}
case LSENS_READING_TIMEOUT: {
if (!lsens_wait) {
// do it all again
lsens_mode = LSENS_READING_IDLE;
}
lsens_wait--;
}
}
}
}
uint16_t adc_get_lsens()
{
return lsens_val;
}
uint8_t adc_get_lsens_coarse()
{
return lsens_coarse;
}

52
gat_stand_fw/user/src/adc.h Normal file
View File

@ -0,0 +1,52 @@
/*
* lightsense.h
*
* Created on: Oct 18, 2024
* Author: true
*/
#ifndef USER_SRC_ADC_H_
#define USER_SRC_ADC_H_
#define LSENS_DARK_THRESHOLD 0x7ff // baseline minimum value reading achieved in darkness
#define LSENS_A_PORT GPIOA
#define LSENS_A_PIN GPIO_Pin_5
#define LSENS_K_PORT GPIOB
#define LSENS_K_PIN GPIO_Pin_0
#define LSENS_ADC_CH ADC_Channel_8
#define LSENS_COARSE_UP 0x990 // counts higher than this increase lsens_coarse, maximum 64
#define LSENS_COARSE_DOWN 0x890 // counts lower than this decrease lsens_coarse, minimum 1
#define LSENS_DARK 48
#define LSENS_BRIGHT 32
enum lsens_mode {
LSENS_READING_IDLE = 0,
LSENS_READING_START,
LSENS_READING_WAIT,
LSENS_READING_TIMEOUT,
LSENS_OUTPUT = 0xff
};
void adc_init();
void adc_convert();
void adc_read();
void adc_set_mode_lsens(uint8_t mode);
uint8_t adc_get_mode_lsens();
void adc_process_lsens();
uint16_t adc_get_lsens();
uint8_t adc_get_lsens_coarse();
#endif /* USER_SRC_ADC_H_ */

16
gat_stand_fw/user/src/btn.c
View File

@ -23,12 +23,12 @@ void btn_init()
// this function assumes GPIO has been configured already
// initialize default setup
btn[0]._pintype = BTN1_PIN;
btn[1]._pintype = BTN2_PIN;
btn[BTN1]._pintype = BTN1_PIN;
btn[BTN2]._pintype = BTN2_PIN;
btn[2]._pintype = DIP1_PIN;
btn[3]._pintype = DIP2_PIN;
btn[4]._pintype = DIP3_PIN;
btn[DIP1]._pintype = DIP1_PIN;
btn[DIP2]._pintype = DIP2_PIN;
btn[DIP3]._pintype = DIP3_PIN;
for (i = 0; i < BTN_COUNT; i++) {
btn[i]._mask = BTN_RELEASE;
@ -43,19 +43,15 @@ void btn_init()
void btn_poll()
{
uint8_t i;
uint8_t r;
uint8_t ignore;
uint8_t pushed;
for (i = 0; i < BTN_COUNT; i++) {
pushed = 0;
ignore = btn[i]._mask & BTN_IGNORE;
r = BTN_PORT->INDR & (1 << (btn[i]._pintype & BTN_PIN_MASK));
// active low type buttons
if (!r) pushed = 1;
pushed = BTN_PORT->INDR & (1 << (btn[i]._pintype & BTN_PIN_MASK)) ? 0 : 1;
if (pushed) {
// hold counter

5
gat_stand_fw/user/src/btn.h
View File

@ -16,11 +16,16 @@
#define BTN_PORT GPIOB
#define BTN1 0
#define BTN1_PIN 10
#define BTN2 1
#define BTN2_PIN 11
#define DIP1 2
#define DIP1_PIN 12
#define DIP2 3
#define DIP2_PIN 13
#define DIP3 4
#define DIP3_PIN 14
#define BTN_PIN_MASK 0xf

38
gat_stand_fw/user/src/port_pwr.c
View File

@ -17,15 +17,21 @@
#define GAT_ON_FLAG (1 << 0)
#define USB2_ON_FLAG (1 << 1)
#define INIT_FLAG (0xa0 << 8)
#define INIT_FLAG (0xaf << 8)
static uint8_t port_pwr_state;
static uint16_t port_pwr_state;
static uint8_t gat_oc_state_latch = 0;
void port_pwr_state_commit_bkp()
{
BKP_WriteBackupRegister(PORT_PWR_STATE_DR, port_pwr_state);
RTC_WaitForLastTask();
}
void gat_on()
{
if (gat_oc_state_latch) return;
@ -33,7 +39,7 @@ void gat_on()
GAT_EN_PORT->BSHR = GAT_EN_PIN;
port_pwr_state |= GAT_ON_FLAG;
BKP_WriteBackupRegister(PORT_PWR_STATE_DR, port_pwr_state);
port_pwr_state_commit_bkp();
}
void gat_off()
@ -41,7 +47,7 @@ void gat_off()
GAT_EN_PORT->BCR = GAT_EN_PIN;
port_pwr_state &= ~GAT_ON_FLAG;
BKP_WriteBackupRegister(PORT_PWR_STATE_DR, port_pwr_state);
port_pwr_state_commit_bkp();
}
uint8_t gat_pwr_state()
@ -65,16 +71,21 @@ void gat_toggle()
else gat_on();
}
void usb2_on()
{
USB2_EN_PORT->BSHR = USB2_EN_PIN;
port_pwr_state |= USB2_ON_FLAG;
BKP_WriteBackupRegister(PORT_PWR_STATE_DR, port_pwr_state);
port_pwr_state_commit_bkp();
}
void usb2_off()
{
USB2_EN_PORT->BCR = USB2_EN_PIN;
port_pwr_state &= ~USB2_ON_FLAG;
BKP_WriteBackupRegister(PORT_PWR_STATE_DR, port_pwr_state);
port_pwr_state_commit_bkp();
}
uint8_t usb2_pwr_state()
@ -84,20 +95,25 @@ uint8_t usb2_pwr_state()
void usb2_toggle()
{
if (usb2_pwr_state()) gat_off();
else gat_on();
if (usb2_pwr_state()) usb2_off();
else usb2_on();
}
void port_pwr_init()
{
port_pwr_state = BKP_ReadBackupRegister(PORT_PWR_STATE_DR);
RTC_WaitForLastTask();
if ((port_pwr_state & INIT_FLAG) != INIT_FLAG) {
// no battery retention.
// automatically turn on all outputs
port_pwr_state |= INIT_FLAG;
gat_on();
usb2_on();
port_pwr_state = INIT_FLAG | USB2_ON_FLAG | GAT_ON_FLAG;
// and commit state flags
port_pwr_state_commit_bkp();
}
if (port_pwr_state & GAT_ON_FLAG) gat_on();
if (port_pwr_state & USB2_ON_FLAG) usb2_on();
}

79
gat_stand_fw/user/src/rgbled.c
View File

@ -2,14 +2,21 @@
* rgbled.c
*
* using TIM2 CH1-CH3
*
* * errata:
* - board design makes overcurrent on GAT port practically impossible.
* overcurrent condition may either trip low voltage condition due to
* decoupling or voltage output limit on LDO. as such, displaying
* any overcurrent state is meaningless.
*/
#include <ch32v20x.h>
#include <stdint.h>
#include "btn.h"
#include "port_pwr.h"
#include "rtc.h"
#include "port_pwr.h"
@ -17,9 +24,10 @@
#define GRN 1
#define BLU 2
#define BRT_RED 200
#define BRT_GRN 100
#define BRT_BLU 200
#define BRT_RED 40
#define BRT_GRN 32
#define BRT_BLU 36
#define BRT_OFF 0
#define RGBLED_TIM TIM2
@ -33,7 +41,8 @@ static uint8_t state[3] = {0};
void rgbled_set()
{
uint8_t i;
int8_t i;
uint16_t out[3];
// flash counters
for (i = 0; i < 3; i++) {
@ -63,20 +72,34 @@ void rgbled_set()
}
}
RGBLED_TIM->CH1CVR = state[RED] ? BRT_RED : 0;
RGBLED_TIM->CH2CVR = state[GRN] ? BRT_GRN : 0;
RGBLED_TIM->CH3CVR = state[BLU] ? BRT_BLU : 0;
out[BLU] = BRT_BLU;
out[GRN] = BRT_GRN;
out[RED] = BRT_RED;
for (i = 0; i < 3; i++) {
// jumper 1 will reduce brightness
if (btn[DIP1]._mask & BTN_PUSH) {
out[i] >>= 2;
}
// jumper 2 will turn off LEDs entirely
if (btn[DIP2]._mask & BTN_PUSH) {
out[i] = BRT_OFF;
}
}
RGBLED_TIM->CH1CVR = state[BLU] ? out[BLU] : BRT_OFF;
RGBLED_TIM->CH2CVR = state[GRN] ? out[GRN] : BRT_OFF;
RGBLED_TIM->CH3CVR = state[RED] ? out[RED] : BRT_OFF;
}
void rgbled_update()
{
uint16_t w;
// VCR flash if clock isn't set
w = BKP_ReadBackupRegister(RTC_STATE_DR);
switch (w) {
case RTC_STATE_UNINITIALIZED: {
flash_timeout[BLU] = 254;
/*
switch (rtc_state) {
case RTC_STATE_CLOCK_NOT_SET: {
flash_timeout[BLU] = 48;
break;
}
default: {
@ -84,9 +107,16 @@ void rgbled_update()
break;
}
}
*/
// see errata on why we aren't showing overcurrent status anymore
// flash_timeout[RED] = gat_oc_state() ? 16 : 0xff;
// power output state
flash_timeout[GRN] = gat_pwr_state() ? 0 : 0xff;
flash_timeout[RED] = gat_oc_state() ? 50 : 0xff;
flash_timeout[RED] = usb2_pwr_state() ? 0 : 0xff;
rgbled_set();
}
void rgbled_init()
@ -102,18 +132,21 @@ void rgbled_init()
pwm.TIM_OCMode = TIM_OCMode_PWM1;
pwm.TIM_OutputState = TIM_OutputState_Enable;
pwm.TIM_Pulse = 0;
pwm.TIM_OCPolarity = TIM_OCPolarity_High;
pwm.TIM_Pulse = BRT_OFF;
pwm.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OC1PreloadConfig(RGBLED_TIM, TIM_OCPreload_Disable);
TIM_OC2PreloadConfig(RGBLED_TIM, TIM_OCPreload_Disable);
TIM_OC3PreloadConfig(RGBLED_TIM, TIM_OCPreload_Disable);
TIM_ARRPreloadConfig(RGBLED_TIM, ENABLE);
TIM_OC1Init(RGBLED_TIM, &pwm);
TIM_OC2Init(RGBLED_TIM, &pwm);
TIM_OC3Init(RGBLED_TIM, &pwm);
TIM_CtrlPWMOutputs(RGBLED_TIM, ENABLE);
TIM_OC1PreloadConfig(RGBLED_TIM, TIM_OCPreload_Disable);
TIM_ARRPreloadConfig(RGBLED_TIM, ENABLE);
RGBLED_TIM->CNT = 0;
TIM_Cmd(RGBLED_TIM, ENABLE);
RGBLED_TIM->CH1CVR = 0;
RGBLED_TIM->CH2CVR = 0;
RGBLED_TIM->CH3CVR = 0;
flash_timeout[BLU] = flash_timeout[GRN] = flash_timeout[RED] = 0xff;
}

5
gat_stand_fw/user/src/rgbled.h
View File

@ -11,12 +11,13 @@
#define RGBLED_PORT GPIOA
#define RGBLED_PIN_R GPIO_Pin_0
#define RGBLED_PIN_B GPIO_Pin_0
#define RGBLED_PIN_G GPIO_Pin_1
#define RGBLED_PIN_B GPIO_Pin_2
#define RGBLED_PIN_R GPIO_Pin_2
void rgbled_init();
void rgbled_update();

4
gat_stand_fw/user/src/rtc.c
View File

@ -116,6 +116,7 @@ int8_t rtc_init()
// get RTC state
// if things aren't configured it'll be initialized in a moment
rtc_state = BKP_ReadBackupRegister(RTC_STATE_DR);
RTC_WaitForLastTask();
// is RTC already configured?
if (BKP_ReadBackupRegister(RTC_INIT_DR) != RTC_INIT_PATTERN) {
@ -150,11 +151,14 @@ int8_t rtc_init()
rtc_state = RTC_STATE_CLOCK_NOT_SET;
BKP_WriteBackupRegister(RTC_STATE_DR, rtc_state);
RTC_WaitForLastTask();
BKP_WriteBackupRegister(RTC_INIT_DR, RTC_INIT_PATTERN);
// RTC_NVIC_Config();
// RTC_Get();
}
RTC_WaitForLastTask();
return 0;
}

12
gat_stand_fw/user/src/rtc.h
View File

@ -13,6 +13,14 @@
/* a small note about backup registers:
*
* the datasheet clearly states there are 42 16-bit registers.
* it does not cut out any exception for CH32V203 except CH32V203RB.
* however, the reference manual states that registers 11-42 are only
* for the _D8 chips, and not the _D6 V4B chips like this one.
* thus we only have _10_ backup registers, not 42.
*/
#define RTC_INIT_DR BKP_DR1
#define RTC_STATE_DR BKP_DR2
@ -35,6 +43,10 @@ typedef struct RTClock {
extern uint8_t rtc_state;
int8_t rtc_init();
int8_t rtc_set_clock(struct RTClock *c);

4
gat_stand_fw/user/system_ch32v20x.c
View File

@ -26,9 +26,9 @@
//#define SYSCLK_FREQ_120MHz_HSE 120000000
//#define SYSCLK_FREQ_144MHz_HSE 144000000
//#define SYSCLK_FREQ_HSI HSI_VALUE
//#define SYSCLK_FREQ_48MHz_HSI 48000000
#define SYSCLK_FREQ_48MHz_HSI 48000000
//#define SYSCLK_FREQ_56MHz_HSI 56000000
#define SYSCLK_FREQ_72MHz_HSI 72000000
//#define SYSCLK_FREQ_72MHz_HSI 72000000
//#define SYSCLK_FREQ_96MHz_HSI 96000000
//#define SYSCLK_FREQ_120MHz_HSI 120000000
//#define SYSCLK_FREQ_144MHz_HSI 144000000