QSPI timing workaround

PaulStoffregen · Nov 10, 2020 · 1fa4f14 · 1fa4f14
1 parent 7af5929
commit 1fa4f14
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/LittleFS.cpp b/src/LittleFS.cpp
@@ -349,7 +349,8 @@ bool LittleFS_QSPIFlash::begin()
 	progtime = info->progtime;
 	erasetime = info->erasetime;
 
-	// TODO: configure FlexSPI2 for chip's size
+	// configure FlexSPI2 for chip's size
+	FLEXSPI2_FLSHA2CR0 = info->chipsize / 1024;
 
 	FLEXSPI2_LUTKEY = FLEXSPI_LUTKEY_VALUE;
 	FLEXSPI2_LUTCR = FLEXSPI_LUTCR_UNLOCK;
@@ -395,13 +396,15 @@ int LittleFS_QSPIFlash::read(lfs_block_t block, lfs_off_t offset, void *buf, lfs
 	flexspi2_ip_read(9, 0x00800000 + addr, buf, size);
 	// TODO: detect errors, return LFS_ERR_IO
 	//printtbuf(buf, 20);
+	delayMicroseconds(25); // TODO: replace this ugly workaround with real solution...
 	return 0;
 }
 
 int LittleFS_QSPIFlash::prog(lfs_block_t block, lfs_off_t offset, const void *buf, lfs_size_t size)
 {
 	flexspi2_ip_command(10, 0x00800000);
 	const uint32_t addr = block * config.block_size + offset;
+	//printtbuf(buf, 20);
 	flexspi2_ip_write(11, 0x00800000 + addr, buf, size);
 	// TODO: detect errors, return LFS_ERR_IO
 	return wait(progtime);