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fw: Update flash_write_data() to handle sizes larger than 4096 bytes

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Mikael Ågren 2025-05-15 15:51:27 +02:00
parent 5a9b77806f
commit 53bc2d5fa0
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GPG key ID: E02DA3D397792C46
3 changed files with 20 additions and 11 deletions
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12
hw/application_fpga/fw/tk1/flash.c
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@ -176,7 +176,11 @@ int flash_write_data(uint32_t address, uint8_t *data, size_t size)
return -1;
}
if (size <= 0 || size > 4096) {
if (size <= 0) {
return -1;
}
if (address % 256 != 0) {
return -1;
}
@ -184,6 +188,12 @@ int flash_write_data(uint32_t address, uint8_t *data, size_t size)
uint8_t *p_data = data;
size_t n_bytes = 0;
// Page Program allows 1-256 bytes of a page to be written. A page is
// 256 bytes. Behavior when writing past the end of a page is device
// specific.
//
// We set the address LSByte to 0 and only write 256 bytes or less in
// each transfer.
uint8_t tx_buf[4] = {
PAGE_PROGRAM, /* tx_buf[0] */
(address >> ADDR_BYTE_3_BIT) & 0xFF, /* tx_buf[1] */