stm32f1xx EEPROM emulation (#3914)
* * Add stm32f1xx EEPROM emulation * Fix eeprom update compare bug Squashed commit of the following: commit b8f248ae08cec0cd81ecbb8854d9b39221d4d573 Author: hsgw <urkwtky@gmail.com> Date: Sat Sep 15 19:13:48 2018 +0900 fix EEPROM_update wrong compare commit d4ed4e6ea864e967a3e17f7edee4b0c3b4a25541 Author: hsgw <urkwtky@gmail.com> Date: Sat Sep 15 17:43:47 2018 +0900 eeprom fix initialization define commit b61aa7c04d70c64df3416d63e5da08b73b6053af Author: hsgw <urkwtky@gmail.com> Date: Sat Sep 15 16:33:40 2018 +0900 maybe working * Fix FLASH_KEY defines
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Jack Humbert
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@ -10,7 +10,7 @@
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
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* This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
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* https://github.com/leaflabs/libmaple
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*
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* Modifications for QMK and STM32F303 by Yiancar
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@ -274,7 +274,7 @@ uint16_t EE_VerifyPageFullWriteVariable(uint16_t Address, uint16_t Data)
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// Check each active page address starting from begining
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for (idx = pageBase + 4; idx < pageEnd; idx += 4)
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if ((*(__IO uint32_t*)idx) == 0xFFFFFFFF) // Verify if element
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if ((*(__IO uint32_t*)idx) == 0xFFFFFFFF) // Verify if element
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{ // contents are 0xFFFFFFFF
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FlashStatus = FLASH_ProgramHalfWord(idx, Data); // Set variable data
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if (FlashStatus != FLASH_COMPLETE)
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@ -517,7 +517,7 @@ uint16_t EEPROM_read(uint16_t Address, uint16_t *Data)
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// Get the valid Page end Address
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pageEnd = pageBase + ((uint32_t)(PageSize - 2));
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// Check each active page address starting from end
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for (pageBase += 6; pageEnd >= pageBase; pageEnd -= 4)
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if ((*(__IO uint16_t*)pageEnd) == Address) // Compare the read address with the virtual address
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@ -574,7 +574,7 @@ uint16_t EEPROM_update(uint16_t Address, uint16_t Data)
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{
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uint16_t temp;
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EEPROM_read(Address, &temp);
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if (Address == Data)
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if (temp == Data)
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return EEPROM_SAME_VALUE;
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else
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return EEPROM_write(Address, Data);
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