diff --git a/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp b/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
new file mode 100644
index 000000000000..f77306a88a17
--- /dev/null
+++ b/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
@@ -0,0 +1,81 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+
+/**
+ * PersistentStore for Arduino-style EEPROM interface
+ * with simple implementations supplied by Marlin.
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(IIC_BL24CXX_EEPROM)
+
+#include "../shared/eeprom_if.h"
+#include "../shared/eeprom_api.h"
+
+//
+// PersistentStore
+//
+
+#ifndef MARLIN_EEPROM_SIZE
+ #error "MARLIN_EEPROM_SIZE is required for IIC_BL24CXX_EEPROM."
+#endif
+
+size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
+
+bool PersistentStore::access_start() { eeprom_init(); return true; }
+bool PersistentStore::access_finish() { return true; }
+
+bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
+ while (size--) {
+ uint8_t v = *value;
+ uint8_t * const p = (uint8_t * const)pos;
+ // EEPROM has only ~100,000 write cycles,
+ // so only write bytes that have changed!
+ if (v != eeprom_read_byte(p)) {
+ eeprom_write_byte(p, v);
+ delay(2);
+ if (eeprom_read_byte(p) != v) {
+ SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
+ return true;
+ }
+ }
+ crc16(crc, &v, 1);
+ pos++;
+ value++;
+ }
+ return false;
+}
+
+bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
+ do {
+ uint8_t * const p = (uint8_t * const)pos;
+ uint8_t c = eeprom_read_byte(p);
+ if (writing) *value = c;
+ crc16(crc, &c, 1);
+ pos++;
+ value++;
+ } while (--size);
+ return false;
+}
+
+#endif // IIC_BL24CXX_EEPROM
diff --git a/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp b/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
new file mode 100644
index 000000000000..33dd277addbe
--- /dev/null
+++ b/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
@@ -0,0 +1,51 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+
+/**
+ * Platform-independent Arduino functions for I2C EEPROM.
+ * Enable USE_SHARED_EEPROM if not supplied by the framework.
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(IIC_BL24CXX_EEPROM)
+
+#include "../../libs/BL24CXX.h"
+#include "../shared/eeprom_if.h"
+
+void eeprom_init() { BL24CXX::init(); }
+
+// ------------------------
+// Public functions
+// ------------------------
+
+void eeprom_write_byte(uint8_t *pos, unsigned char value) {
+ const unsigned eeprom_address = (unsigned)pos;
+ return BL24CXX::writeOneByte(eeprom_address, value);
+}
+
+uint8_t eeprom_read_byte(uint8_t *pos) {
+ const unsigned eeprom_address = (unsigned)pos;
+ return BL24CXX::readOneByte(eeprom_address);
+}
+
+#endif // IIC_BL24CXX_EEPROM
diff --git a/Marlin/src/HAL/shared/eeprom_api.h b/Marlin/src/HAL/shared/eeprom_api.h
index b97267484e62..6445f7a4aae4 100644
--- a/Marlin/src/HAL/shared/eeprom_api.h
+++ b/Marlin/src/HAL/shared/eeprom_api.h
@@ -29,20 +29,38 @@
class PersistentStore {
public:
+
+ // Total available persistent storage space (in bytes)
+ static size_t capacity();
+
+ // Prepare to read or write
static bool access_start();
+
+ // Housecleaning after read or write
static bool access_finish();
+
+ // Write one or more bytes of data and update the CRC
+ // Return 'true' on write error
static bool write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc);
+
+ // Read one or more bytes of data and update the CRC
+ // Return 'true' on read error
static bool read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing=true);
- static size_t capacity();
+ // Write one or more bytes of data
+ // Return 'true' on write error
static inline bool write_data(const int pos, const uint8_t* value, const size_t size=sizeof(uint8_t)) {
int data_pos = pos;
uint16_t crc = 0;
return write_data(data_pos, value, size, &crc);
}
+ // Write a single byte of data
+ // Return 'true' on write error
static inline bool write_data(const int pos, const uint8_t value) { return write_data(pos, &value); }
+ // Read one or more bytes of data
+ // Return 'true' on read error
static inline bool read_data(const int pos, uint8_t* value, const size_t size=1) {
int data_pos = pos;
uint16_t crc = 0;
diff --git a/Marlin/src/MarlinCore.cpp b/Marlin/src/MarlinCore.cpp
index 55c0bda4ac01..7ba577504abd 100644
--- a/Marlin/src/MarlinCore.cpp
+++ b/Marlin/src/MarlinCore.cpp
@@ -72,7 +72,7 @@
#endif
#if ENABLED(IIC_BL24CXX_EEPROM)
- #include "lcd/dwin/eeprom_BL24CXX.h"
+ #include "libs/BL24CXX.h"
#endif
#if ENABLED(DIRECT_STEPPING)
@@ -1171,7 +1171,7 @@ void setup() {
#if ENABLED(IIC_BL24CXX_EEPROM)
BL24CXX::init();
const uint8_t err = BL24CXX::check();
- SERIAL_ECHO_TERNARY(err, "I2C_EEPROM Check ", "failed", "succeeded", "!\n");
+ SERIAL_ECHO_TERNARY(err, "BL24CXX Check ", "failed", "succeeded", "!\n");
#endif
#if ENABLED(DWIN_CREALITY_LCD)
diff --git a/Marlin/src/gcode/eeprom/M500-M504.cpp b/Marlin/src/gcode/eeprom/M500-M504.cpp
index 4eb6dfcc7628..5aee68ba997a 100644
--- a/Marlin/src/gcode/eeprom/M500-M504.cpp
+++ b/Marlin/src/gcode/eeprom/M500-M504.cpp
@@ -58,11 +58,47 @@ void GcodeSuite::M502() {
#endif // !DISABLE_M503
#if ENABLED(EEPROM_SETTINGS)
+
+ #if ENABLED(MARLIN_DEV_MODE)
+ #include "../../libs/hex_print_routines.h"
+ #endif
+
/**
* M504: Validate EEPROM Contents
*/
void GcodeSuite::M504() {
+ #if ENABLED(MARLIN_DEV_MODE)
+ const bool dowrite = parser.seenval('W');
+ if (dowrite || parser.seenval('R')) {
+ uint8_t val = 0;
+ int addr = parser.value_ushort();
+ if (dowrite) {
+ val = parser.byteval('V');
+ persistentStore.write_data(addr, &val);
+ SERIAL_ECHOLNPAIR("Wrote address ", addr, " with ", int(val));
+ }
+ else {
+ if (parser.seenval('T')) {
+ const int endaddr = parser.value_ushort();
+ while (addr <= endaddr) {
+ persistentStore.read_data(addr, &val);
+ SERIAL_ECHOLNPAIR("0x", hex_word(addr), ":", hex_byte(val));
+ addr++;
+ safe_delay(10);
+ }
+ SERIAL_EOL();
+ }
+ else {
+ persistentStore.read_data(addr, &val);
+ SERIAL_ECHOLNPAIR("Read address ", addr, " and got ", int(val));
+ }
+ }
+ return;
+ }
+ #endif
+
if (settings.validate())
SERIAL_ECHO_MSG("EEPROM OK");
}
+
#endif
diff --git a/Marlin/src/inc/Conditionals_post.h b/Marlin/src/inc/Conditionals_post.h
index 401a64d72d3d..e12310e07c51 100644
--- a/Marlin/src/inc/Conditionals_post.h
+++ b/Marlin/src/inc/Conditionals_post.h
@@ -50,6 +50,8 @@
#define USE_EMULATED_EEPROM 1
#elif ANY(I2C_EEPROM, SPI_EEPROM)
#define USE_WIRED_EEPROM 1
+ #elif ENABLED(IIC_BL24CXX_EEPROM)
+ // nothing
#else
#define USE_FALLBACK_EEPROM 1
#endif
@@ -60,6 +62,7 @@
#undef SDCARD_EEPROM_EMULATION
#undef SRAM_EEPROM_EMULATION
#undef FLASH_EEPROM_EMULATION
+ #undef IIC_BL24CXX_EEPROM
#endif
#ifdef TEENSYDUINO
diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h
index f8e4dc669aee..a90571b17555 100644
--- a/Marlin/src/inc/SanityCheck.h
+++ b/Marlin/src/inc/SanityCheck.h
@@ -2131,8 +2131,13 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
*/
#if ENABLED(EEPROM_SETTINGS)
#if 1 < 0 \
- + ENABLED(I2C_EEPROM) + ENABLED(SPI_EEPROM) + ENABLED(QSPI_EEPROM) \
- + ENABLED(SDCARD_EEPROM_EMULATION) + ENABLED(FLASH_EEPROM_EMULATION) + ENABLED(SRAM_EEPROM_EMULATION)
+ + ENABLED(I2C_EEPROM) \
+ + ENABLED(SPI_EEPROM) \
+ + ENABLED(QSPI_EEPROM) \
+ + ENABLED(SDCARD_EEPROM_EMULATION) \
+ + ENABLED(FLASH_EEPROM_EMULATION) \
+ + ENABLED(SRAM_EEPROM_EMULATION) \
+ + ENABLED(IIC_BL24CXX_EEPROM)
#error "Please select only one method of EEPROM Persistent Storage."
#endif
#endif
diff --git a/Marlin/src/lcd/dwin/dwin.cpp b/Marlin/src/lcd/dwin/dwin.cpp
index 4f661ca9536d..fd2b6810cc6d 100644
--- a/Marlin/src/lcd/dwin/dwin.cpp
+++ b/Marlin/src/lcd/dwin/dwin.cpp
@@ -185,10 +185,11 @@ int temphot = 0, tempbed = 0;
float zprobe_zoffset = 0;
float last_zoffset = 0, last_probe_zoffset = 0;
-#define FONT_EEPROM_OFFSET 0
+#define DWIN_LANGUAGE_EEPROM_ADDRESS 0x01 // Between 0x01 and 0x63 (EEPROM_OFFSET-1)
+ // BL24CXX::check() uses 0x00
void lcd_select_language(void) {
- BL24CXX::read(FONT_EEPROM_OFFSET, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
+ BL24CXX::read(DWIN_LANGUAGE_EEPROM_ADDRESS, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
if (HMI_flag.language_flag)
DWIN_JPG_CacheTo1(Language_Chinese);
else
@@ -198,12 +199,12 @@ void lcd_select_language(void) {
void set_english_to_eeprom(void) {
HMI_flag.language_flag = 0;
DWIN_JPG_CacheTo1(Language_English);
- BL24CXX::write(FONT_EEPROM_OFFSET, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
+ BL24CXX::write(DWIN_LANGUAGE_EEPROM_ADDRESS, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
}
void set_chinese_to_eeprom(void) {
HMI_flag.language_flag = 1;
DWIN_JPG_CacheTo1(Language_Chinese);
- BL24CXX::write(FONT_EEPROM_OFFSET, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
+ BL24CXX::write(DWIN_LANGUAGE_EEPROM_ADDRESS, (uint8_t*)&HMI_flag.language_flag, sizeof(HMI_flag.language_flag));
}
void show_plus_or_minus(uint8_t size, uint16_t bColor, uint8_t iNum, uint8_t fNum, uint16_t x, uint16_t y, long value) {
diff --git a/Marlin/src/lcd/dwin/dwin.h b/Marlin/src/lcd/dwin/dwin.h
index e834ef3e24e6..2d24d2504e7e 100644
--- a/Marlin/src/lcd/dwin/dwin.h
+++ b/Marlin/src/lcd/dwin/dwin.h
@@ -27,7 +27,7 @@
#include "dwin_lcd.h"
#include "rotary_encoder.h"
-#include "eeprom_BL24CXX.h"
+#include "../../libs/BL24CXX.h"
#include
diff --git a/Marlin/src/lcd/dwin/eeprom_BL24CXX.cpp b/Marlin/src/lcd/dwin/eeprom_BL24CXX.cpp
deleted file mode 100644
index 25356ab406a0..000000000000
--- a/Marlin/src/lcd/dwin/eeprom_BL24CXX.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- *
- */
-
-/********************************************************************************
- * @file eeprom_BL24CXX.cpp
- * @brief i2c EEPROM for Ender 3 v2 board (4.2.2)
- ********************************************************************************/
-
-#include "../../inc/MarlinConfig.h"
-
-#if ENABLED(IIC_BL24CXX_EEPROM)
-
-#include "eeprom_BL24CXX.h"
-#include "../../MarlinCore.h"
-
-#include
-
-/******************** IIC ********************/
-
-// 初始化IIC
-void IIC::init() {
- SET_OUTPUT(IIC_EEPROM_SDA);
- SET_OUTPUT(IIC_EEPROM_SCL);
-
- IIC_SCL_1();
- IIC_SDA_1();
-}
-
-// 产生IIC起始信号
-void IIC::start() {
- SDA_OUT(); // sda线输出
- IIC_SDA_1();
- IIC_SCL_1();
- delay_us(4);
- IIC_SDA_0(); // START:when CLK is high, DATA change form high to low
- delay_us(4);
- IIC_SCL_0(); // 钳住I2C总线，准备发送或接收数据
-}
-
-// 产生IIC停止信号
-void IIC::stop() {
- SDA_OUT(); // sda线输出
- IIC_SCL_0();
- IIC_SDA_0(); // STOP:when CLK is high DATA change form low to high
- delay_us(4);
- IIC_SCL_1();
- IIC_SDA_1(); // 发送I2C总线结束信号
- delay_us(4);
-}
-
-// 等待应答信号到来
-// 返回值：1，接收应答失败
-// 0，接收应答成功
-uint8_t IIC::wait_ack() {
- uint8_t ucErrTime=0;
- SDA_IN(); // SDA设置为输入
- IIC_SDA_1();delay_us(1);
- IIC_SCL_1();delay_us(1);
- while (READ_SDA()) {
- ucErrTime++;
- if (ucErrTime>250) {
- stop();
- return 1;
- }
- }
- IIC_SCL_0(); // 时钟输出0
- return 0;
-}
-
-// 产生ACK应答
-void IIC::ack() {
- IIC_SCL_0();
- SDA_OUT();
- IIC_SDA_0();
- delay_us(2);
- IIC_SCL_1();
- delay_us(2);
- IIC_SCL_0();
-}
-
-// 不产生ACK应答
-void IIC::nAck() {
- IIC_SCL_0();
- SDA_OUT();
- IIC_SDA_1();
- delay_us(2);
- IIC_SCL_1();
- delay_us(2);
- IIC_SCL_0();
-}
-
-// IIC发送一个字节
-// 返回从机有无应答
-// 1，有应答
-// 0，无应答
-void IIC::send_byte(uint8_t txd) {
- SDA_OUT();
- IIC_SCL_0(); // 拉低时钟开始数据传输
- LOOP_L_N(t, 8) {
- // IIC_SDA = (txd & 0x80) >> 7;
- if (txd & 0x80) IIC_SDA_1(); else IIC_SDA_0();
- txd <<= 1;
- delay_us(2); // 对TEA5767这三个延时都是必须的
- IIC_SCL_1();
- delay_us(2);
- IIC_SCL_0();
- delay_us(2);
- }
-}
-
-// 读1个字节，ack=1时，发送ACK，ack=0，发送nACK
-uint8_t IIC::read_byte(unsigned char ack_chr) {
- unsigned char receive = 0;
- SDA_IN(); // SDA设置为输入
- LOOP_L_N(i, 8) {
- IIC_SCL_0();
- delay_us(2);
- IIC_SCL_1();
- receive <<= 1;
- if (READ_SDA()) receive++;
- delay_us(1);
- }
- ack_chr ? ack() : nAck(); // 发送ACK / 发送nACK
- return receive;
-}
-
-/******************** EEPROM ********************/
-
-// 初始化IIC接口
-void BL24CXX::init() { IIC::init(); }
-
-// 在BL24CXX指定地址读出一个数据
-// ReadAddr:开始读数的地址
-// 返回值 :读到的数据
-uint8_t BL24CXX::readOneByte(uint16_t ReadAddr) {
- uint8_t temp = 0;
- IIC::start();
- if (EE_TYPE > BL24C16) {
- IIC::send_byte(0xA0); // 发送写命令
- IIC::wait_ack();
- IIC::send_byte(ReadAddr >> 8); // 发送高地址
- IIC::wait_ack();
- }
- else
- IIC::send_byte(0xA0 + ((ReadAddr >> 8) << 1)); // 发送器件地址0xA0,写数据
-
- IIC::wait_ack();
- IIC::send_byte(ReadAddr & 0xFF); // 发送低地址
- IIC::wait_ack();
- IIC::start();
- IIC::send_byte(0xA1); // 进入接收模式
- IIC::wait_ack();
- temp = IIC::read_byte(0);
- IIC::stop(); // 产生一个停止条件
- return temp;
-}
-
-// 在BL24CXX指定地址写入一个数据
-// WriteAddr :写入数据的目的地址
-// DataToWrite:要写入的数据
-void BL24CXX::writeOneByte(uint16_t WriteAddr, uint8_t DataToWrite) {
- IIC::start();
- if (EE_TYPE > BL24C16) {
- IIC::send_byte(0xA0); // 发送写命令
- IIC::wait_ack();
- IIC::send_byte(WriteAddr >> 8); // 发送高地址
- }
- else {
- IIC::send_byte(0xA0 + ((WriteAddr >> 8) << 1)); // 发送器件地址0xA0,写数据
- }
- IIC::wait_ack();
- IIC::send_byte(WriteAddr & 0xFF); // 发送低地址
- IIC::wait_ack();
- IIC::send_byte(DataToWrite); // 发送字节
- IIC::wait_ack();
- IIC::stop(); // 产生一个停止条件
- delay(10);
-}
-
-// 在BL24CXX里面的指定地址开始写入长度为Len的数据
-// 该函数用于写入16bit或者32bit的数据.
-// WriteAddr :开始写入的地址
-// DataToWrite:数据数组首地址
-// Len :要写入数据的长度2,4
-void BL24CXX::writeLenByte(uint16_t WriteAddr, uint32_t DataToWrite, uint8_t Len) {
- LOOP_L_N(t, Len)
- writeOneByte(WriteAddr + t, (DataToWrite >> (8 * t)) & 0xFF);
-}
-
-// 在BL24CXX里面的指定地址开始读出长度为Len的数据
-// 该函数用于读出16bit或者32bit的数据.
-// ReadAddr :开始读出的地址
-// 返回值 :数据
-// Len :要读出数据的长度2,4
-uint32_t BL24CXX::readLenByte(uint16_t ReadAddr, uint8_t Len) {
- uint32_t temp = 0;
- LOOP_L_N(t, Len) {
- temp <<= 8;
- temp += readOneByte(ReadAddr + Len - t - 1);
- }
- return temp;
-}
-
-// 检查BL24CXX是否正常
-// 这里用了24XX的最后一个地址(255)来存储标志字.
-// 如果用其他24C系列,这个地址要修改
-// 返回1:检测失败
-// 返回0:检测成功
-uint8_t BL24CXX::check() {
- uint8_t temp;
- temp = readOneByte(255); // 避免每次开机都写BL24CXX
- if (temp == 'U') return 0;
- else { // 排除第一次初始化的情况
- writeOneByte(255, 'U');
- temp = readOneByte(255);
- if (temp == 'U') return 0;
- }
- return 1;
-}
-
-// 在BL24CXX里面的指定地址开始读出指定个数的数据
-// ReadAddr :开始读出的地址 对24c02为0~255
-// pBuffer :数据数组首地址
-// NumToRead:要读出数据的个数
-void BL24CXX::read(uint16_t ReadAddr, uint8_t *pBuffer, uint16_t NumToRead) {
- while (NumToRead) {
- *pBuffer++ = readOneByte(ReadAddr++);
- NumToRead--;
- }
-}
-
-// 在BL24CXX里面的指定地址开始写入指定个数的数据
-// WriteAddr :开始写入的地址 对24c02为0~255
-// pBuffer :数据数组首地址
-// NumToWrite:要写入数据的个数
-void BL24CXX::write(uint16_t WriteAddr, uint8_t *pBuffer, uint16_t NumToWrite) {
- while (NumToWrite--) {
- writeOneByte(WriteAddr, *pBuffer);
- WriteAddr++;
- pBuffer++;
- }
-}
-
-#endif // IIC_BL24CXX_EEPROM
diff --git a/Marlin/src/libs/BL24CXX.cpp b/Marlin/src/libs/BL24CXX.cpp
new file mode 100644
index 000000000000..d34ed8340f83
--- /dev/null
+++ b/Marlin/src/libs/BL24CXX.cpp
@@ -0,0 +1,273 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(IIC_BL24CXX_EEPROM)
+
+/**
+ * PersistentStore for Arduino-style EEPROM interface
+ * with simple implementations supplied by Marlin.
+ */
+
+#include "BL24CXX.h"
+#include
+
+#ifndef EEPROM_WRITE_DELAY
+ #define EEPROM_WRITE_DELAY 10
+#endif
+#ifndef EEPROM_DEVICE_ADDRESS
+ #define EEPROM_DEVICE_ADDRESS (0x50 << 1)
+#endif
+
+// IO direction setting
+#define SDA_IN() do{ PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH &= 0XFFFF0FFF; PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH |= 8 << 12; }while(0)
+#define SDA_OUT() do{ PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH &= 0XFFFF0FFF; PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH |= 3 << 12; }while(0)
+
+// IO ops
+#define IIC_SCL_0() WRITE(IIC_EEPROM_SCL, LOW)
+#define IIC_SCL_1() WRITE(IIC_EEPROM_SCL, HIGH)
+#define IIC_SDA_0() WRITE(IIC_EEPROM_SDA, LOW)
+#define IIC_SDA_1() WRITE(IIC_EEPROM_SDA, HIGH)
+#define READ_SDA() READ(IIC_EEPROM_SDA)
+
+//
+// Simple IIC interface via libmaple
+//
+
+// Initialize IIC
+void IIC::init() {
+ SET_OUTPUT(IIC_EEPROM_SDA);
+ SET_OUTPUT(IIC_EEPROM_SCL);
+ IIC_SCL_1();
+ IIC_SDA_1();
+}
+
+// Generate IIC start signal
+void IIC::start() {
+ SDA_OUT(); // SDA line output
+ IIC_SDA_1();
+ IIC_SCL_1();
+ delay_us(4);
+ IIC_SDA_0(); // START:when CLK is high, DATA change from high to low
+ delay_us(4);
+ IIC_SCL_0(); // Clamp the I2C bus, ready to send or receive data
+}
+
+// Generate IIC stop signal
+void IIC::stop() {
+ SDA_OUT(); // SDA line output
+ IIC_SCL_0();
+ IIC_SDA_0(); // STOP:when CLK is high DATA change from low to high
+ delay_us(4);
+ IIC_SCL_1();
+ IIC_SDA_1(); // Send I2C bus end signal
+ delay_us(4);
+}
+
+// Wait for the response signal to arrive
+// 1 = failed to receive response
+// 0 = response received
+uint8_t IIC::wait_ack() {
+ uint8_t ucErrTime = 0;
+ SDA_IN(); // SDA is set as input
+ IIC_SDA_1(); delay_us(1);
+ IIC_SCL_1(); delay_us(1);
+ while (READ_SDA()) {
+ if (++ucErrTime > 250) {
+ stop();
+ return 1;
+ }
+ }
+ IIC_SCL_0(); // Clock output 0
+ return 0;
+}
+
+// Generate ACK response
+void IIC::ack() {
+ IIC_SCL_0();
+ SDA_OUT();
+ IIC_SDA_0();
+ delay_us(2);
+ IIC_SCL_1();
+ delay_us(2);
+ IIC_SCL_0();
+}
+
+// No ACK response
+void IIC::nAck() {
+ IIC_SCL_0();
+ SDA_OUT();
+ IIC_SDA_1();
+ delay_us(2);
+ IIC_SCL_1();
+ delay_us(2);
+ IIC_SCL_0();
+}
+
+// Send one IIC byte
+// Return whether the slave responds
+// 1 = there is a response
+// 0 = no response
+void IIC::send_byte(uint8_t txd) {
+ SDA_OUT();
+ IIC_SCL_0(); // Pull down the clock to start data transmission
+ LOOP_L_N(t, 8) {
+ // IIC_SDA = (txd & 0x80) >> 7;
+ if (txd & 0x80) IIC_SDA_1(); else IIC_SDA_0();
+ txd <<= 1;
+ delay_us(2); // All three delays are necessary for TEA5767
+ IIC_SCL_1();
+ delay_us(2);
+ IIC_SCL_0();
+ delay_us(2);
+ }
+}
+
+// Read 1 byte, when ack=1, send ACK, ack=0, send nACK
+uint8_t IIC::read_byte(unsigned char ack_chr) {
+ unsigned char receive = 0;
+ SDA_IN(); // SDA is set as input
+ LOOP_L_N(i, 8) {
+ IIC_SCL_0();
+ delay_us(2);
+ IIC_SCL_1();
+ receive <<= 1;
+ if (READ_SDA()) receive++;
+ delay_us(1);
+ }
+ ack_chr ? ack() : nAck(); // Send ACK / send nACK
+ return receive;
+}
+
+/******************** EEPROM ********************/
+
+// Initialize the IIC interface
+void BL24CXX::init() { IIC::init(); }
+
+// Read a byte at the specified address
+// ReadAddr: the address to start reading
+// Return: the byte read
+uint8_t BL24CXX::readOneByte(uint16_t ReadAddr) {
+ uint8_t temp = 0;
+ IIC::start();
+ if (EE_TYPE > BL24C16) {
+ IIC::send_byte(EEPROM_DEVICE_ADDRESS); // Send write command
+ IIC::wait_ack();
+ IIC::send_byte(ReadAddr >> 8); // Send high address
+ IIC::wait_ack();
+ }
+ else
+ IIC::send_byte(EEPROM_DEVICE_ADDRESS + ((ReadAddr >> 8) << 1)); // Send device address 0xA0, write data
+
+ IIC::wait_ack();
+ IIC::send_byte(ReadAddr & 0xFF); // Send low address
+ IIC::wait_ack();
+ IIC::start();
+ IIC::send_byte(EEPROM_DEVICE_ADDRESS | 0x01); // Send byte
+ IIC::wait_ack();
+ temp = IIC::read_byte(0);
+ IIC::stop(); // Generate a stop condition
+ return temp;
+}
+
+// Write a data at the address specified by BL24CXX
+// WriteAddr: The destination address for writing data
+// DataToWrite: the data to be written
+void BL24CXX::writeOneByte(uint16_t WriteAddr, uint8_t DataToWrite) {
+ IIC::start();
+ if (EE_TYPE > BL24C16) {
+ IIC::send_byte(EEPROM_DEVICE_ADDRESS); // Send write command
+ IIC::wait_ack();
+ IIC::send_byte(WriteAddr >> 8); // Send high address
+ }
+ else
+ IIC::send_byte(EEPROM_DEVICE_ADDRESS + ((WriteAddr >> 8) << 1)); // Send device address 0xA0, write data
+
+ IIC::wait_ack();
+ IIC::send_byte(WriteAddr & 0xFF); // Send low address
+ IIC::wait_ack();
+ IIC::send_byte(DataToWrite); // Receiving mode
+ IIC::wait_ack();
+ IIC::stop(); // Generate a stop condition
+ delay(10);
+}
+
+// Start writing data of length Len at the specified address in BL24CXX
+// This function is used to write 16bit or 32bit data.
+// WriteAddr: the address to start writing
+// DataToWrite: the first address of the data array
+// Len: The length of the data to be written 2, 4
+void BL24CXX::writeLenByte(uint16_t WriteAddr, uint32_t DataToWrite, uint8_t Len) {
+ LOOP_L_N(t, Len)
+ writeOneByte(WriteAddr + t, (DataToWrite >> (8 * t)) & 0xFF);
+}
+
+// Start reading data of length Len from the specified address in BL24CXX
+// This function is used to read 16bit or 32bit data.
+// ReadAddr: the address to start reading
+// Return value: data
+// Len: The length of the data to be read 2,4
+uint32_t BL24CXX::readLenByte(uint16_t ReadAddr, uint8_t Len) {
+ uint32_t temp = 0;
+ LOOP_L_N(t, Len) {
+ temp <<= 8;
+ temp += readOneByte(ReadAddr + Len - t - 1);
+ }
+ return temp;
+}
+
+// Check if BL24CXX is normal
+// Return 1: Detection failed
+// return 0: detection is successful
+#define BL24CXX_TEST_ADDRESS 0x00
+#define BL24CXX_TEST_VALUE 0x55
+
+bool BL24CXX::_check() {
+ return (readOneByte(BL24CXX_TEST_ADDRESS) != BL24CXX_TEST_VALUE); // false = success!
+}
+
+bool BL24CXX::check() {
+ if (_check()) { // Value was written? Good EEPROM!
+ writeOneByte(BL24CXX_TEST_ADDRESS, BL24CXX_TEST_VALUE); // Write now and check.
+ return _check();
+ }
+ return false; // success!
+}
+
+// Start reading the specified number of data at the specified address in BL24CXX
+// ReadAddr: The address to start reading is 0~255 for 24c02
+// pBuffer: the first address of the data array
+// NumToRead: the number of data to be read
+void BL24CXX::read(uint16_t ReadAddr, uint8_t *pBuffer, uint16_t NumToRead) {
+ for (; NumToRead; NumToRead--)
+ *pBuffer++ = readOneByte(ReadAddr++);
+}
+
+// Start writing the specified number of data at the specified address in BL24CXX
+// WriteAddr: the address to start writing, 0~255 for 24c02
+// pBuffer: the first address of the data array
+// NumToWrite: the number of data to be written
+void BL24CXX::write(uint16_t WriteAddr, uint8_t *pBuffer, uint16_t NumToWrite) {
+ for (; NumToWrite; NumToWrite--, WriteAddr++)
+ writeOneByte(WriteAddr, *pBuffer++);
+}
+
+#endif // IIC_BL24CXX_EEPROM
diff --git a/Marlin/src/lcd/dwin/eeprom_BL24CXX.h b/Marlin/src/libs/BL24CXX.h
similarity index 65%
rename from Marlin/src/lcd/dwin/eeprom_BL24CXX.h
rename to Marlin/src/libs/BL24CXX.h
index e253cc9be269..b069c196c035 100644
--- a/Marlin/src/lcd/dwin/eeprom_BL24CXX.h
+++ b/Marlin/src/libs/BL24CXX.h
@@ -22,25 +22,12 @@
#pragma once
/********************************************************************************
- * @file eeprom_BL24CXX.h
+ * @file BL24CXX.h
* @brief i2c EEPROM for Ender 3 v2 board (4.2.2)
********************************************************************************/
-#include
-
/******************** IIC ********************/
-//IO direction setting
-#define SDA_IN() do{ PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH &= 0XFFFF0FFF; PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH |= 8 << 12; }while(0)
-#define SDA_OUT() do{ PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH &= 0XFFFF0FFF; PIN_MAP[IIC_EEPROM_SDA].gpio_device->regs->CRH |= 3 << 12; }while(0)
-
-//IO operation function
-#define IIC_SCL_0() WRITE(IIC_EEPROM_SCL, LOW)
-#define IIC_SCL_1() WRITE(IIC_EEPROM_SCL, HIGH)
-#define IIC_SDA_0() WRITE(IIC_EEPROM_SDA, LOW)
-#define IIC_SDA_1() WRITE(IIC_EEPROM_SDA, HIGH)
-#define READ_SDA() READ(IIC_EEPROM_SDA)
-
class BL24CXX;
// All operation functions of IIC
@@ -55,9 +42,6 @@ friend class BL24CXX;
static uint8_t wait_ack(); // IIC waits for ACK signal
static void ack(); // IIC sends ACK signal
static void nAck(); // IIC does not send ACK signal
-
- static void write_one_byte(uint8_t daddr, uint8_t addr, uint8_t data);
- static uint8_t read_one_byte(uint8_t daddr, uint8_t addr);
};
/******************** EEPROM ********************/
@@ -74,13 +58,15 @@ friend class BL24CXX;
#define EE_TYPE BL24C16
class BL24CXX {
+private:
+ static bool _check(); // Check the device
public:
- static void init(); // Initialize IIC
- static uint8_t check(); // Check the device
- static uint8_t readOneByte(uint16_t ReadAddr); // Read a byte at the specified address
- static void writeOneByte(uint16_t WriteAddr, uint8_t DataToWrite); // Write a byte at the specified address
- static void writeLenByte(uint16_t WriteAddr, uint32_t DataToWrite, uint8_t Len);// The specified address begins to write the data of the specified length
- static uint32_t readLenByte(uint16_t ReadAddr, uint8_t Len); // The specified address starts to read the data of the specified length
- static void write(uint16_t WriteAddr, uint8_t *pBuffer, uint16_t NumToWrite); // Write the specified length of data from the specified address
- static void read(uint16_t ReadAddr, uint8_t *pBuffer, uint16_t NumToRead); // Read the data of the specified length from the specified address
+ static void init(); // Initialize IIC
+ static bool check(); // Check / recheck the device
+ static uint8_t readOneByte(uint16_t ReadAddr); // Read a byte at the specified address
+ static void writeOneByte(uint16_t WriteAddr, uint8_t DataToWrite); // Write a byte at the specified address
+ static void writeLenByte(uint16_t WriteAddr, uint32_t DataToWrite, uint8_t Len); // The specified address begins to write the data of the specified length
+ static uint32_t readLenByte(uint16_t ReadAddr, uint8_t Len); // The specified address starts to read the data of the specified length
+ static void write(uint16_t WriteAddr, uint8_t *pBuffer, uint16_t NumToWrite); // Write the specified length of data from the specified address
+ static void read(uint16_t ReadAddr, uint8_t *pBuffer, uint16_t NumToRead); // Read the data of the specified length from the specified address
};
diff --git a/Marlin/src/libs/hex_print_routines.cpp b/Marlin/src/libs/hex_print_routines.cpp
index 3ab81e596a0c..5909ffd7d015 100644
--- a/Marlin/src/libs/hex_print_routines.cpp
+++ b/Marlin/src/libs/hex_print_routines.cpp
@@ -23,7 +23,7 @@
#include "../inc/MarlinConfig.h"
#include "../gcode/parser.h"
-#if ANY(AUTO_BED_LEVELING_UBL, M100_FREE_MEMORY_WATCHER, DEBUG_GCODE_PARSER, TMC_DEBUG)
+#if ANY(AUTO_BED_LEVELING_UBL, M100_FREE_MEMORY_WATCHER, DEBUG_GCODE_PARSER, TMC_DEBUG, MARLIN_DEV_MODE)
#include "hex_print_routines.h"
diff --git a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
index cf7594f78428..8a413945b788 100644
--- a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
+++ b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
@@ -47,12 +47,12 @@
#if ENABLED(IIC_BL24CXX_EEPROM)
#define IIC_EEPROM_SDA PA11
#define IIC_EEPROM_SCL PA12
- //#define MARLIN_EEPROM_SIZE 0x4000 // 16Kb (24c16)
+ #define MARLIN_EEPROM_SIZE 0x800 // 2Kb (24C16)
+ #else
+ #define SDCARD_EEPROM_EMULATION // SD EEPROM until all EEPROM is BL24CXX
+ #define MARLIN_EEPROM_SIZE 0x800 // 2Kb
#endif
- #define SDCARD_EEPROM_EMULATION // SD EEPROM until all EEPROM is BL24CXX
- #define MARLIN_EEPROM_SIZE 0x1000 // 4Kb
-
// SPI
//#define SPI_EEPROM // EEPROM on SPI-0
//#define SPI_CHAN_EEPROM1 ?
diff --git a/buildroot/tests/STM32F103RET6_creality-tests b/buildroot/tests/STM32F103RET6_creality-tests
index f9ae634ebc76..ca723c7aa229 100644
--- a/buildroot/tests/STM32F103RET6_creality-tests
+++ b/buildroot/tests/STM32F103RET6_creality-tests
@@ -10,6 +10,7 @@ set -e
# Build with configs included in the PR
#
use_example_configs "Creality/Ender-3 V2"
+opt_enable MARLIN_DEV_MODE
exec_test $1 $2 "Ender 3 v2"
restore_configs