YACWC

2026-08-31 22:43:51 -04:00
commit c87308caca
521 changed files with 141326 additions and 0 deletions
@@ -0,0 +1,154 @@
+#include "m95128.h"
+
+uint8_t read_value;
+uint8_t old_last_page;
+uint8_t new_last_page;
+void spi_eeprom_select(bool state)
+{
+    SET_PIN_OUT(DDRB, DDB0);
+    if (!state) {
+        SET_PIN_HIGH(PORTB, PB0);
+    } else {
+        SET_PIN_LOW(PORTB, PB0);
+    }
+}
+
+void eeprom_write(uint8_t page, unsigned const char* msg, uint8_t msg_len)
+{
+    spi_rfm69_select(false);
+
+    spi_eeprom_select(true);
+    spi_write(EEPROM_WREN);
+    spi_eeprom_select(false);
+
+    spi_eeprom_select(true);
+    spi_write(EEPROM_WRITE);
+    write_page_address(page);
+
+    for (int i = 0; i < msg_len; i++) {
+        spi_write(msg[i]);
+    }
+
+    spi_eeprom_select(false);
+
+    spi_eeprom_select(true);
+    spi_write(EEPROM_WRDI);
+    spi_eeprom_select(false);
+
+    while (1) {
+        spi_eeprom_select(true);
+        spi_write(EEPROM_RDSR);
+        read_value = spi_read();
+        spi_eeprom_select(false);
+        if (read_value == 0x00) {
+            return;
+        }
+    };
+}
+
+void eeprom_read(uint8_t page, unsigned char* msg, uint8_t msg_len)
+{
+
+    spi_eeprom_select(true);
+    spi_write(EEPROM_WRDI);
+    spi_eeprom_select(false);
+
+    spi_eeprom_select(true);
+    spi_write(EEPROM_READ);
+    write_page_address(page);
+
+    for (int i = 0; i < msg_len; i++) {
+        msg[i] = spi_read();
+    }
+    spi_eeprom_select(false);
+}
+
+void delete_last_page()
+{
+    old_last_page = get_last_page();
+    if (old_last_page == 0) // If we have nothing, no need to delete anything
+    {
+        return;
+    }
+    new_last_page = old_last_page - 1;
+    write_last_page_value(new_last_page);
+    eeprom_clear_page(old_last_page);
+}
+
+uint8_t get_last_page()
+{
+    memset(DATA_BUFFER_65, 0, 1);
+    eeprom_read(0, DATA_BUFFER_65, 1);
+    return (uint8_t)DATA_BUFFER_65[0];
+}
+
+void write_last_page_value(uint8_t page)
+{
+    DATA_BUFFER_7[0] = page;
+    eeprom_write(0, DATA_BUFFER_7, 1);
+}
+
+void write_page_address(uint8_t page)
+{
+    uint16_t addr = page * 0x40; // Each page starts at 64 byte intervals.  And 64 byte is 0x40 or
+                                 // 0b01000000;
+    spi_write((addr >> 8) & 0xFF);
+    spi_write(addr & 0xFF);
+}
+
+void eeprom_write_tx_data(uint8_t page, tx_rx_data_struct tx_data_in)
+{
+    if (page == 0) {
+        return;
+    }
+    memset(DATA_BUFFER_65, ' ', 64);
+    DATA_BUFFER_65[64] = '\0';
+    memcpy(DATA_BUFFER_65, tx_data_in.msg, 60);
+    DATA_BUFFER_65[60] = tx_data_in.flags;
+    DATA_BUFFER_65[61] = tx_data_in.from;
+    DATA_BUFFER_65[62] = tx_data_in.to;
+    DATA_BUFFER_65[63] = tx_data_in.dtype;
+
+    eeprom_write(page, DATA_BUFFER_65, 64);
+}
+
+tx_rx_data_struct eeprom_read_tx_data(uint8_t page)
+{
+    reset_txrx_struct(&TX_DATA);
+    memset(DATA_BUFFER_65, ' ', 64);
+    DATA_BUFFER_65[64] = '\0';
+    eeprom_read(page, DATA_BUFFER_65, 64);
+    memcpy(TX_DATA.msg, DATA_BUFFER_65, 60);
+    TX_DATA.flags = DATA_BUFFER_65[60];
+    TX_DATA.from = DATA_BUFFER_65[61];
+    TX_DATA.to = DATA_BUFFER_65[62];
+    TX_DATA.dtype = DATA_BUFFER_65[63];
+    TX_DATA.len = 60;
+    return TX_DATA;
+}
+
+tx_rx_data_struct read_struct_last_page()
+{
+    uint8_t page_num = get_last_page();
+    return eeprom_read_tx_data(page_num);
+}
+
+void write_struct_to_last_page(tx_rx_data_struct tx_data_in)
+{
+    uint8_t page_val = get_last_page();
+    uint8_t next_page_val;
+    if (page_val == 255) {
+        next_page_val = 1;
+    } else {
+        next_page_val = page_val + 1;
+    }
+
+    eeprom_write_tx_data(next_page_val, tx_data_in);
+    write_last_page_value(next_page_val);
+}
+
+void eeprom_clear_page(uint8_t page)
+{
+    memset(DATA_BUFFER_65, ' ', 64);
+    eeprom_write(page, DATA_BUFFER_65, 64);
+}