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make ssd driver work

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2025-12-14 18:51:52 -06:00
parent a80e918d63
commit 5cde1bdfce
7 changed files with 31 additions and 32 deletions
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17
src/drivers/ssd.c
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@@ -2,6 +2,7 @@
#include "ssd.h"
#include "esp_rom_sys.h"
#include "esp_log.h"
#ifdef __cplusplus
extern "C" {
@@ -9,23 +10,28 @@ extern "C" {
inline void pulse(gpio_num_t pin) {
gpio_set_level(pin, 1);
esp_rom_delay_us(1);
gpio_set_level(pin, 0);
esp_rom_delay_us(1);
}
void shiftInit(const ssd_595_t* device) {
gpio_reset_pin(device->dataPin);
gpio_reset_pin(device->clockPin);
gpio_reset_pin(device->latchPin);
gpio_config_t ioConfig = {
.mode = GPIO_MODE_OUTPUT,
.pin_bit_mask = (1ULL << device->dataPin) |
(1ULL << device->clockPin) |
(1ULL << device->latchPin)
(1ULL << device->latchPin),
};
gpio_config(&ioConfig);
gpio_set_level(device->dataPin, 0);
gpio_set_level(device->clockPin, 0);
gpio_set_level(device->latchPin, 0);
ESP_LOGI(__FILE__, "ssd_595 initialized");
}
void addDecimal(uint8_t* data) {
@@ -34,8 +40,9 @@ void addDecimal(uint8_t* data) {
}
void shiftByte(const ssd_595_t* device, uint8_t byte) {
for(int i = 0; i < __CHAR_BIT__; i++) {
gpio_set_level(device->dataPin, (byte >> i) & 0x1);
for(int i = 0; i < __CHAR_BIT__ ; i++) {
uint32_t level = ((byte >> i) & 0x1) ^ device->commonCathode;
gpio_set_level(device->dataPin, level);
pulse(device->clockPin);
}
pulse(device->latchPin);