bstanwell/wch-uf2-example
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can generate files when reading

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R
2024-04-13 18:36:03 +01:00
parent 509193ebe6
commit d4a2837b6c
2 changed files with 21 additions and 6 deletions
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bootloader.c
+20 -5
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@@ -114,6 +114,9 @@ const uint8_t BOOT_SECTOR[0x3e] __attribute__((aligned(16))) = {
'F', 'A', 'T', '1', '6', ' ', ' ', ' ', // fs type
};
const uint8_t INFO_UF2[] __attribute__((aligned(16))) = "asdfasdfasdfTODO";
const uint8_t INDEX_HTM[] __attribute__((aligned(16))) = "fdsafdsaTODO22222222";
const uint8_t ROOT_DIR[32 * 3] __attribute__((aligned(16))) = {
'C', 'H', '3', '2', 'V', ' ', 'U', 'F', '2', ' ', ' ', // name
0x08, // attributes (volume label)
@@ -130,8 +133,8 @@ const uint8_t ROOT_DIR[32 * 3] __attribute__((aligned(16))) = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // timestamps
0x00, 0x00, // reserved
0x00, 0x00, 0x00, 0x00, // timestamps
0x00, 0x00, // start cluster
0x00, 0x00, 0x00, 0x00, // file size
0x02, 0x00, // start cluster
sizeof(INFO_UF2), sizeof(INFO_UF2) >> 8, sizeof(INFO_UF2) >> 16, sizeof(INFO_UF2) >> 24,
'I', 'N', 'D', 'E', 'X', ' ', ' ', ' ', 'H', 'T', 'M', // name
0x01, // attributes (RO)
@@ -139,8 +142,8 @@ const uint8_t ROOT_DIR[32 * 3] __attribute__((aligned(16))) = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // timestamps
0x00, 0x00, // reserved
0x00, 0x00, 0x00, 0x00, // timestamps
0x00, 0x00, // start cluster
0x00, 0x00, 0x00, 0x00, // file size
0x03, 0x00, // start cluster
sizeof(INDEX_HTM), sizeof(INDEX_HTM) >> 8, sizeof(INDEX_HTM) >> 16, sizeof(INDEX_HTM) >> 24,
};
#define ESIG_UNIID(x) (*(volatile uint8_t*)(0x1FFFF7E8 + (x)))
@@ -219,7 +222,9 @@ __attribute__((always_inline)) static inline void synthesize_block(uint32_t bloc
} else if (block == 1 && piece == 0) {
USB_EP1_IN(0) = 0xfff8;
USB_EP1_IN(2) = 0xffff;
for (int i = 2; i < 32; i++)
USB_EP1_IN(4) = 0xfff8;
USB_EP1_IN(6) = 0xfff8;
for (int i = 4; i < 32; i++)
USB_EP1_IN(i * 2) = 0;
} else if (block == 65 && piece == 0) {
for (int i = 0; i < 32; i++)
@@ -229,6 +234,16 @@ __attribute__((always_inline)) static inline void synthesize_block(uint32_t bloc
USB_EP1_IN(i * 2) = ((uint16_t*)ROOT_DIR)[32+ i];
for (int i = 16; i < 32; i++)
USB_EP1_IN(i * 2) = 0;
} else if (block == 66 && piece == 0) {
for (int i = 0; i < (sizeof(INFO_UF2) + 1 / 2); i++)
USB_EP1_IN(i * 2) = ((uint16_t*)INFO_UF2)[i];
for (int i = (sizeof(INFO_UF2) + 1 / 2); i < 32; i++)
USB_EP1_IN(i * 2) = 0;
} else if (block == 67 && piece == 0) {
for (int i = 0; i < (sizeof(INDEX_HTM) + 1 / 2); i++)
USB_EP1_IN(i * 2) = ((uint16_t*)INDEX_HTM)[i];
for (int i = (sizeof(INDEX_HTM) + 1 / 2); i < 32; i++)
USB_EP1_IN(i * 2) = 0;
} else {
for (int i = 0; i < 32; i++)
USB_EP1_IN(i * 2) = 0;
linker.lds
+1 -1
View File
@@ -3,7 +3,7 @@ ENTRY( _start )
MEMORY
{
/* Try to squeeze down to this target size */
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 4K
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 8K
LOL_NO_RAM (rw) : ORIGIN = 0x400060c0, LENGTH = 0
}