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This commit is contained in:
feelfree69
2026-03-05 08:55:51 +01:00
parent 7a0f248424
commit 494320b191
4 changed files with 23 additions and 31 deletions
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rtl837x_flash.c
+19 -19
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@@ -9,8 +9,11 @@
__xdata uint8_t dio_enabled;
__xdata struct flash_region_t flash_region;
__xdata uint32_t flash_size;
__xdata char flash_size_str[16];
__xdata uint8_t flash_capacity_code;
__code char * __code flash_size_text[] = { "256 KB", "512 KB", "1 MB", "2 MB", "4 MB", "8 MB", "16 MB" };
// For the flash commands, see e.g. Windbond W25Q32JV datasheet
#define CMD_WRITE_STATUS 0x01
@@ -135,6 +138,13 @@ void flash_read_uid(void)
flash_configure_mmio();
}
__code char* get_flash_size_str(void)
{
if (flash_capacity_code >= 0x12 && flash_capacity_code <= 0x18)
return flash_size_text[flash_capacity_code - 0x12];
else
return "unknown";
}
void flash_read_jedecid(void)
{
@@ -151,26 +161,16 @@ void flash_read_jedecid(void)
SFR_FLASH_EXEC_GO = 1;
while(SFR_FLASH_EXEC_BUSY);
print_string("Maufacturer ID: 0x");
print_string("Flash information:\n");
print_string(" Manufacturer ID: 0x");
print_byte(SFR_FLASH_DATA0);
print_string("\nMemory Type: 0x");
print_string("\n Memory Type: 0x");
print_byte(SFR_FLASH_DATA8);
print_string("\nCapacity: 0x");
uint8_t cap = SFR_FLASH_DATA16;
flash_size = 1UL << cap;
print_byte(cap);
print_string(" = ");
switch(cap) {
case 0x12: memcpyc(flash_size_str, "256 KB", 7); break;
case 0x13: memcpyc(flash_size_str, "512 KB", 7); break;
case 0x14: memcpyc(flash_size_str, "1 MB", 5); break;
case 0x15: memcpyc(flash_size_str, "2 MB", 5); break;
case 0x16: memcpyc(flash_size_str, "4 MB", 5); break;
case 0x17: memcpyc(flash_size_str, "8 MB", 5); break;
case 0x18: memcpyc(flash_size_str, "16 MB", 6); break;
default: memcpyc(flash_size_str, "unknown", 8); break;
}
print_string_x(flash_size_str); write_char('\n');
print_string("\n Capacity: 0x");
flash_capacity_code = SFR_FLASH_DATA16;
flash_size = 1UL << flash_capacity_code;
print_byte(flash_capacity_code);
print_string(" = "); print_string(get_flash_size_str()); write_char('\n');
flash_configure_mmio();
}