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Reducing IMEM footprint in flash routines

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logicog
2025-09-30 20:45:44 +02:00
parent 110c403443
commit 05492e601a
5 changed files with 69 additions and 52 deletions
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rtlplayground.c
+8 -3
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@@ -70,6 +70,8 @@ __xdata uint8_t sfr_data[4];
extern __xdata uint8_t cmd_buffer[SBUF_SIZE];
extern __xdata uint8_t gpio_last_value[8];
extern __xdata uint32_t flash_addr;
__code uint8_t * __code greeting = "\nA minimal prompt to explore the RTL8372:\n";
__code uint8_t * __code hex = "0123456789abcdef";
@@ -1698,7 +1700,8 @@ void bootloader(void)
flash_init(0);
// Check update in progress and move blocks
flash_read_bulk(flash_buf, FIRMWARE_UPLOAD_START, 0x100);
flash_addr = FIRMWARE_UPLOAD_START;
flash_read_bulk(flash_buf, 0x100);
if (flash_buf[0] == 0x00 && flash_buf[1] == 0x40) {
print_string("Update in progress, moving firmware to start of FLASH!\n");
@@ -1708,11 +1711,13 @@ void bootloader(void)
for (__xdata uint16_t i=0; i < 960; i++) {
print_string("Writing block: ");
print_short(dest);
flash_read_bulk(flash_buf, source, 0x200);
flash_addr = source;
flash_read_bulk(flash_buf, 0x200);
write_char('\n');
if (!(i & 0x7))
flash_sector_erase(dest);
flash_write_bytes(dest, flash_buf, 0x200);
flash_addr = dest;
flash_write_bytes(flash_buf, 0x200);
dest += 0x200;
source += 0x200;
}