alema/usbc_soldering_iron
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moved state to global

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This commit is contained in:
Alessandro Mauri 2026-05-31 11:32:43 +02:00
parent 32cd24b5c8
commit 440ef14ac1
2 changed files with 17 additions and 19 deletions
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6
fw/display.c
View File

@ -163,13 +163,13 @@ static uint8_t u8x8_byte_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *a
u8g2_t* display_init(void)
{
#if defined(SSD1306_128X32) && SSD1306_128X32
#if SSD1306_128X32
u8g2_Setup_ssd1306_i2c_128x32_univision_f(&u8g2, U8G2_R0, u8x8_byte_i2c, u8x8_gpio_and_delay);
#elif defined(SSD1312_96X16) && SSD1312_96X16
#elif SSD1312_96X16
// NOTE: display size is wrong, hardware is 96x16, but driver is configured for 120x28
u8g2_Setup_ssd1312_i2c_128x32_f(&u8g2, U8G2_R0, u8x8_byte_i2c, u8x8_gpio_and_delay);
#else
static_assert(0, "unsupported display size");
static_assert(0, "unsupported display");
#endif
// TODO: log errors and return NULL on failure
u8g2_InitDisplay(&u8g2);

30
fw/main.c
View File

@ -14,12 +14,20 @@
#include "coroutine.h"
// constants
u8g2_t *u8g2;
int16_t encoder = 0; // rotary encoder counter
uint32_t last_interrupt = 0; // last time the encoder interrupt was triggered
struct pd_profile_t pd_profile;
uint16_t vcc_mv = 3300;
/* ------------------------------ Global State ------------------------------ */
u8g2_t *u8g2; // Display state
int16_t encoder; // Rotary encoder counter
struct pd_profile_t pd_profile; // USB Power Delivery profile
uint16_t vcc_mv = 3300; // Logic (and analog) voltage
uint16_t tip_mv; // Tip amplifier reading in mV
uint16_t tip_temp_c; // Converted tip temperature in degrees C
int16_t temp_c; // Board temperature in degrees C
uint16_t vbus_mv; // USB bus voltage in mV
uint16_t current_ma; // USB bus current to the heater in mA
uint16_t power; // Current power provided to the heater
uint16_t duty; // Current mosfet driver duty cycle (0-100%)
bool pwm = false; // PWM status (on-off)
bool enabled = false; // Power electronics enabled
// convert the raw TPA191 adc reading to a current in milliamps
@ -449,10 +457,6 @@ __attribute__((noreturn)) int main(void)
// No Power Delivery, maybe we are attached to a computer, so poll the input
poll_input();
static uint16_t vcc_mv = 3300;
static u16 tip_mv, tip_temp_c;
static s16 temp_c;
adc_injection_conversion();
temp_c = I16_FP_EMA_K4(temp_c, get_temp_c(adc_buffer[2]));
@ -498,18 +502,12 @@ __attribute__((noreturn)) int main(void)
u8g2_ClearBuffer(u8g2);
u8g2_SetFont(u8g2, u8g2_font_5x8_tr);
static bool pwm = false; // PWM status
static bool enabled = false; // Power electronics enabled
static uint8_t count = 0; // Loop cycles with PWM on
static s32 elapsed = 0;
static bool prev_btn = true;
bool btn = funDigitalRead(PIN_BTN);
if (has_pd) {
static uint16_t vbus_mv, current_ma;
static int16_t temp_c, tip_temp_c;
static uint16_t power;
static uint16_t duty;
vbus_mv = U16_FP_EMA_K4(vbus_mv, ((u32)adc_buffer[0]*vcc_mv*11)/4096);
current_ma = U16_FP_EMA_K4(current_ma, get_current_ma(adc_buffer[1]));
temp_c = I16_FP_EMA_K4(temp_c, get_temp_c(adc_buffer[2]));