e629109c76
Suddenly introduced in SDK 1.5.4+patch/SDK 2.0.0, another callback most users won't care about. Vendor's description is: "Set the target flash sector to store RF_CAL parameters. The system parameter area (4 flash sectors) has already been used, so the RF_CAL parameters will be stored in the target sector set by user_rf_cal_sector_set." It's a mystery how all the previous SDK version worked without a need to store this info in flash (actually, that was one of the "selling points" of ESP8266, setting it aside from all other chips which had RF calibration in flash), and 2.0.0 suddenly decided to do it. So, make this default user_rf_cal_sector_set() implementation return flash_sectors - 5, so the last 20KB/5 sectors of flash should be reserved for systems needs (vs 16KB/4 sectors in previous SDKs).
11 lines
346 B
C
11 lines
346 B
C
#include <c_types.h>
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#include <spi_flash.h>
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uint32 user_rf_cal_sector_set(void) {
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extern char flashchip;
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SpiFlashChip *flash = (SpiFlashChip*)(&flashchip + 4);
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// We know that sector size in 4096
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//uint32_t sec_num = flash->chip_size / flash->sector_size;
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uint32_t sec_num = flash->chip_size >> 12;
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return sec_num - 5;
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}
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