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Merge pull request #72 from vDorst/fix_flash_read

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Flash: fix: Don't use READ 0x03 flash command.
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logicog
2026-01-07 18:44:08 +01:00
committed by GitHub
parent 5ed4d7afc7 745c170f0a
commit 0fe70f6b62
1 changed files with 5 additions and 3 deletions
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rtl837x_flash.c
+5 -3
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@@ -16,7 +16,9 @@ __xdata struct flash_region_t flash_region;
// For the flash commands, see e.g. Windbond W25Q32JV datasheet
#define CMD_WRITE_STATUS 0x01
#define CMD_PAGE_PROGRAM 0x02
#define CMD_READ 0x03
// Don't use command `READ 0x03`, because on many device this command can't run at maximum SPI-clock speed.
// Use `Fast READ 0x0b` instead!
//#define CMD_READ 0x03
#define CMD_WRITE_ENABLE 0x06
#define CMD_FREAD 0x0b
#define CMD_SECTOR_ERASE 0x20
@@ -249,8 +251,8 @@ void flash_read_bulk(__xdata uint8_t *dst)
SFR_FLASH_DUMMYCYCLES = 4;
} else {
SFR_FLASH_MODEB = 0x0;
SFR_FLASH_CMD_R = CMD_READ;
SFR_FLASH_DUMMYCYCLES = 0;
SFR_FLASH_CMD_R = CMD_FREAD; // Fast read
SFR_FLASH_DUMMYCYCLES = 8; // Add 8 dummy clocks
}