thebears
bbdcc1e623
- main.c: file-header comment describing the hardware and operation, logic split into named phases (sleep_until_interrupt, wake_peripheral_rails, take_counts_snapshot, send_wheel_counts_report, handle_minute_alarm, init_all_hardware); shared state renamed to say what it is and made static. - rfm69.c: reorganized into six labeled sections; cond_1/2/3 and hash scratch globals replaced by a reply_acknowledges() helper with clear locals; packet layout and every init register write documented. - LOG() macro (compiled out when DO_UART is off) replaces the #if DO_UART blocks that obscured the logic. - Drivers: file-header comments; named RTC_REG_*/RTC_ALM_MASK_BIT constants; EEPROM spool scheme documented; ADC_CHANNEL_BANDGAP named; repeated pin if/else helpers collapsed to SET_PIN_TO(). - Removed unused globals/buffers and commented-out code; ran clang-format with the project style. Register writes and radio protocol are byte-identical. Builds clean under -Wall -Wextra on gnu17 and c23; flash 13028 -> 12830 B, static RAM 1038 -> 999 B. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YVJKatfeMJjAmuH9KYiLuv
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* File: spi.h
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* Author: thebears
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*
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* Created on December 6, 2024, 11:02 AM
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*/
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#include "defines.h"
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#include "rfm69.h"
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#include "spi.h"
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#include "states.h"
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#include "uart.h"
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#include <avr/io.h>
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#include <util/delay.h>
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#ifndef M95128__H
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#define M95128__H
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#define EEPROM_WREN 0b00000110 // 0x06
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#define EEPROM_WRDI 0b00000100 // 0x04
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#define EEPROM_RDSR 0b00000101 // 0x05
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#define EEPROM_WRSR 0b00000001 // 0x01
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#define EEPROM_READ 0b00000011 // 0x03
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#define EEPROM_WRITE 0b00000010 // 0x02
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#define EEPROM_RDID 0b10000011 // 0x83
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#define EEPROM_WRID 0b10000010 // 0x82
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#define EEPROM_RDLS 0b10000011 // 0x83
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#define EEPROM_LID 0b10000010 // 0x82
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#define PAGE_SIZE 64
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#define EEPROM_STATUS_WIP 0x01
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// A page write takes ~5 ms; past this the device is not responding.
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#define EEPROM_POLL_TIMEOUT_MS 100U
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#ifdef __cplusplus
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extern "C" {
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#endif
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void spi_eeprom_select(bool state);
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void eeprom_write(uint8_t page, unsigned const char* msg, uint8_t msg_len);
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void eeprom_read(uint8_t page, unsigned char* msg, uint8_t msg_len);
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void eeprom_write_tx_data(uint8_t page, tx_rx_data_struct tx_data);
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void write_page_address(uint8_t page);
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uint8_t get_last_page(void);
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tx_rx_data_struct eeprom_read_tx_data(uint8_t page);
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void delete_last_page(void);
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uint8_t get_last_page(void);
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void write_last_page_value(uint8_t page);
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void eeprom_clear_page(uint8_t page);
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void write_page_address(uint8_t page);
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void eeprom_write_tx_data(uint8_t page, tx_rx_data_struct tx_data);
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void write_struct_to_last_page(tx_rx_data_struct tx_data);
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tx_rx_data_struct read_struct_last_page(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* M95128__H */
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