CanSat/EmbeddedESP
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update

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This commit is contained in:
Bruno Rybársky
2025-04-26 17:09:55 +02:00
parent 5853bf849f
commit cb339e6b66
18 changed files with 270 additions and 111 deletions
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26
main/hw/mcp23018.c
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@@ -1,11 +1,12 @@
#include "mcp23018.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "../components/sensors.h"
// Local buffer for tracking GPIO state
i2c_device_config_t MCP23018_DEV_CFG = {
.dev_addr_length = I2C_ADDR_BIT_LEN_7,
.device_address = 0x20,
.device_address = MCP23018_ADDRESS,
.scl_speed_hz = 100000,
};
@@ -13,8 +14,12 @@ i2c_master_dev_handle_t MCP23018_DEV_HANDLE;
uint8_t gpioa_state = 0x00; // All LOW initially
uint8_t gpiob_state = 0x00; // All LOW initially
void mcp23018_set_pin(i2c_master_dev_handle_t dev_handle, uint8_t pin, uint8_t value)
esp_err_t mcp23018_set_pin(i2c_master_dev_handle_t dev_handle, uint8_t pin, uint8_t value)
{
// while(foundDevices[MCP23018_ADDRESS] != 2) {
// vTaskDelay(1);
// }
esp_err_t ret = ESP_FAIL;
if (pin < 8)
{
// GPIOA (Pins 0-7)
@@ -24,7 +29,7 @@ void mcp23018_set_pin(i2c_master_dev_handle_t dev_handle, uint8_t pin, uint8_t v
gpioa_state &= ~(1 << pin); // Clear bit
// Write updated buffer to MCP23018
i2c_write_register_8(dev_handle, MCP23018_GPIOA, gpioa_state);
ret = i2c_write_register_8(dev_handle, MCP23018_GPIOA, gpioa_state);
}
else if (pin < 16)
{
@@ -36,19 +41,28 @@ void mcp23018_set_pin(i2c_master_dev_handle_t dev_handle, uint8_t pin, uint8_t v
gpiob_state &= ~(1 << pinB); // Clear bit
// Write updated buffer to MCP23018
i2c_write_register_8(dev_handle, MCP23018_GPIOB, gpiob_state);
ret = i2c_write_register_8(dev_handle, MCP23018_GPIOB, gpiob_state);
}
vTaskDelay(1 / portTICK_PERIOD_MS);
return ret;
}
void mcp23018_init()
esp_err_t mcp23018_init()
{
ESP_ERROR_CHECK(i2c_master_bus_add_device(i2c0_bus_hdl, &MCP23018_DEV_CFG, &MCP23018_DEV_HANDLE));
esp_err_t ret = i2c_master_bus_add_device(i2c0_bus_hdl, &MCP23018_DEV_CFG, &MCP23018_DEV_HANDLE);
if (ret != ESP_OK) {return ret;}
i2c_write_register_8(MCP23018_DEV_HANDLE, MCP23018_IODIRA, gpioa_state);
if (ret != ESP_OK) {return ret;}
i2c_write_register_8(MCP23018_DEV_HANDLE, MCP23018_IODIRB, gpiob_state);
if (ret != ESP_OK) {return ret;}
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_CS_ADC_CO, 1);
if (ret != ESP_OK) {return ret;}
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_CS_ADC_NH3, 1);
if (ret != ESP_OK) {return ret;}
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_CS_ADC_NO2, 1);
if (ret != ESP_OK) {return ret;}
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_CS_ADC_UVC, 1);
if (ret != ESP_OK) {return ret;}
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_LORA_RST, 1);
return ret;
}