fix for ESP32S3 Bus_SPI::readBytes. Unaligned length read does not wo…

…rk properly. ( m5stack#75 )
alwint3r · Feb 12, 2024 · 8cc1b55 · 8cc1b55
1 parent 3fad7a0
commit 8cc1b55
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/lgfx/v1/platforms/esp32/Bus_SPI.cpp b/src/lgfx/v1/platforms/esp32/Bus_SPI.cpp
@@ -878,7 +878,9 @@ namespace lgfx
         if (0 == (length -= len1)) {
           len2 = len1;
           wait_spi();
-          memcpy(dst, (void*)spi_w0_reg, (len2 + 3) & ~3u);
+          uint8_t tmp[32];
+          memcpy(tmp, (void*)spi_w0_reg, (len2 + 3) & ~3u);
+          memcpy(dst, tmp, len2);
         } else {
           if (length < len1) {
             len1 = length;