bstanwell/wch-uf2-example
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flash programming appears okay

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R
2024-04-13 21:54:35 +01:00
parent 0c142bb60c
commit 3bbc82bd4d
2 changed files with 26 additions and 1 deletions
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.gdbinit
+1 -1
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@@ -1,2 +1,2 @@
tar ext localhost:3333
load
# load
bootloader.c
+25
View File
@@ -186,6 +186,12 @@ const uint8_t ROOT_DIR[32 * 3] __attribute__((aligned(2))) = {
#define R16_USBD_ISTR (*(volatile uint16_t*)0x40005C44)
#define R16_USBD_DADDR (*(volatile uint16_t*)0x40005C4C)
#define R32_FLASH_KEYR (*(volatile uint32_t*)0x40022004)
#define R32_FLASH_STATR (*(volatile uint32_t*)0x4002200C)
#define R32_FLASH_CTLR (*(volatile uint32_t*)0x40022010)
#define R32_FLASH_ADDR (*(volatile uint32_t*)0x40022014)
#define R32_FLASH_MODEKEYR (*(volatile uint32_t*)0x40022024)
#define R32_EXTEN_CTR (*(volatile uint32_t*)0x40023800)
#define PFIC_SCTLR (*(volatile uint32_t*)0xE000ED10)
@@ -745,6 +751,25 @@ error_csw:
UF2_BLOCKS_LEFT--;
// todo flash the file
// todo ram download mode
R32_FLASH_KEYR = 0x45670123;
R32_FLASH_KEYR = 0xCDEF89AB;
R32_FLASH_MODEKEYR = 0x45670123;
R32_FLASH_MODEKEYR = 0xCDEF89AB;
R32_FLASH_CTLR = 1 << 17;
R32_FLASH_ADDR = address;
R32_FLASH_CTLR = (1 << 17) | (1 << 6);
while (R32_FLASH_STATR & 1) {}
R32_FLASH_CTLR = 1 << 16;
for (int i = 0; i < 64; i++) {
volatile uint32_t *addr = (volatile uint32_t *)(address + i * 4);
uint32_t val = USB_SECTOR_STASH(i * 4) | (USB_SECTOR_STASH(i * 4 + 2) << 16);
*addr = val;
while (R32_FLASH_STATR & 2) {}
}
R32_FLASH_CTLR = (1 << 16) | (1 << 21);
while (R32_FLASH_STATR & 1) {}
R32_FLASH_CTLR = (1 << 15) | (1 << 7);
}
}