From 33a10e4f938f99f71ddeb65d71fe59efef1ae8b0 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Mon, 7 Mar 2011 16:03:03 -0500 Subject: Slightly faster RAM writes (6.5MHz). --- examples/test-fsmc.cpp | 2 ++ libmaple/fsmc.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/examples/test-fsmc.cpp b/examples/test-fsmc.cpp index ff55330..d1c8567 100644 --- a/examples/test-fsmc.cpp +++ b/examples/test-fsmc.cpp @@ -49,6 +49,7 @@ void test_all_addresses() { uint16 count = 0; uint16 *ptr; Serial1.println("Now writing all memory addresses (unrolled loop)"); + SerialUSB.end(); start = micros(); for (ptr = ptr_start; ptr < ptr_end;) { *ptr++ = count++; @@ -69,6 +70,7 @@ void test_all_addresses() { *ptr++ = count++; } end = micros(); + SerialUSB.begin(); Serial1.print("Done. Elapsed time (us): "); Serial1.println(end - start); diff --git a/libmaple/fsmc.c b/libmaple/fsmc.c index 61fd06c..42e0eb1 100644 --- a/libmaple/fsmc.c +++ b/libmaple/fsmc.c @@ -99,7 +99,7 @@ void fsmc_native_sram_init(void) { /* FIXME replace with macros from fsmc.h */ bank->BCR = (1 << 12) | (1 << 4) | 1; - bank->BTR = (0xF << 16) | (0x3 << 8) | 1; + bank->BTR = (3 << 8); /* (FSMC_BWTR3 not used for this simple configuration.) */ } -- cgit v1.2.3