bstanwell/wch-uf2-example
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R
2024-04-14 16:23:11 +01:00
parent 73a91a4d90
commit cfe827c1ce
2 changed files with 6 additions and 8 deletions
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bootloader.c
+4 -4
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@@ -173,8 +173,8 @@ extern uint32_t CTRL_XFER_STATE_X;
extern uint32_t CTRL_XFER_DESC_SZ;
extern uint32_t USB_SECTOR_STASH[128];
#define MAX_AUTO_BOOT_BLOCKS (36 * 16 - 1)
extern uint32_t UF2_GOT_BLOCKS[36];
#define MAX_AUTO_BOOT_BLOCKS (38 * 16 - 1)
extern uint32_t UF2_GOT_BLOCKS[38];
#define USB_EPTYPE_BULK 0b00
#define USB_EPTYPE_CONTROL 0b01
@@ -379,7 +379,7 @@ __attribute__((naked)) int main(void) {
// [15:0] = blocks left
uint32_t scsi_xfer_lba_blocks = 0;
UF2_GOT_BLOCKS[35] = 0;
UF2_GOT_BLOCKS[37] = 0;
while (1) {
uint32_t usb_int_status = R16_USBD_ISTR;
@@ -775,7 +775,7 @@ __attribute__((naked)) int main(void) {
uint32_t blocknum = BLOCKNUM_LO;
uint32_t totblocks = TOTBLOCKS_LO;
if (UF2_GOT_BLOCKS[35] & 0x8000) {
if (UF2_GOT_BLOCKS[37] & 0x8000) {
// not first uf2 block
UF2_GOT_BLOCKS[blocknum / 16] |= 1 << (blocknum % 16);
} else {
linker.lds
+2 -4
View File
@@ -45,10 +45,8 @@ SECTIONS
PROVIDE( UF2_GOT_BLOCKS = 0x40006140 );
PROVIDE( BLOCKNUM_LO = 0x400061d0 );
PROVIDE( BLOCKNUM_HI = 0x400061d4 );
PROVIDE( TOTBLOCKS_LO = 0x400061d8 );
PROVIDE( TOTBLOCKS_HI = 0x400061dc );
PROVIDE( BLOCKNUM_LO = 0x400061d8 );
PROVIDE( TOTBLOCKS_LO = 0x400061dc );
PROVIDE( CSWTAG_LO = 0x400061e0 );
PROVIDE( CSWTAG_HI = 0x400061e4 );
PROVIDE( ADDRESS_LO = 0x400061e8 );