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WiFi firmware updater memory mapped fix #1094

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WiFi firmware updater memory mapped fix #1094

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e28dd9e
wifi: fix memory mapped firmware write loop
pennam Oct 22, 2025
0abb5f8
wifi: make sure memory mapped firmware area is erased before writing
pennam Oct 22, 2025
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2 changes: 1 addition & 1 deletion libraries/STM32H747_System/examples/QSPIFormat/QSPIFormat.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -219,7 +219,7 @@ void flashWiFiFirmwareMapped() {
while (byte_count < file_size) {
if (byte_count + chunk_size > file_size)
chunk_size = file_size - byte_count;
int ret = root->program(wifi_firmware_image_data, offset + byte_count, chunk_size);
int ret = root->program(&wifi_firmware_image_data[byte_count], offset + byte_count, chunk_size);
if (ret != 0) {
Serial.println("Error writing memory mapped firmware");
break;
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8 changes: 7 additions & 1 deletion libraries/STM32H747_System/examples/WiFiFirmwareUpdater/WiFiFirmwareUpdater.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -107,12 +107,18 @@ void setup() {
byte_count = 0;
const uint32_t offset = 15 * 1024 * 1024 + 1024 * 512;

// Make sure QSPI is erased before programming
Serial.println("Erasing memory mapped firmware area...");
err = root.erase(14 * 1024 * 1024, 2 * 1024 * 1024);
if (err != 0) {
Serial.println("Error erasing memory mapped firmware area");
}
Serial.println("Flashing memory mapped firmware");
printProgress(byte_count, file_size, 10, true);
while (byte_count < file_size) {
if(byte_count + chunck_size > file_size)
chunck_size = file_size - byte_count;
int ret = root.program(wifi_firmware_image_data, offset + byte_count, chunck_size);
int ret = root.program(&wifi_firmware_image_data[byte_count], offset + byte_count, chunck_size);
if (ret != 0) {
Serial.println("Error writing firmware data");
break;
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