From 6dd847401486e1c45cb6beb5fe3758b91aed866a Mon Sep 17 00:00:00 2001
From: thangktran <30556255+thangktran@users.noreply.github.com>
Date: Sat, 17 Aug 2019 21:27:45 +0200
Subject: [PATCH] libraries: wrong value for setFrequency() (#6409)

Thanks to fix suggestion from @UlliBien.

Fixes: https://github.com/esp8266/Arduino/issues/6380
---
 libraries/SPI/SPI.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/SPI/SPI.cpp b/libraries/SPI/SPI.cpp
index 09336266c..0e8d7f188 100644
--- a/libraries/SPI/SPI.cpp
+++ b/libraries/SPI/SPI.cpp
@@ -212,7 +212,7 @@ void SPIClass::setFrequency(uint32_t freq) {
         return;
     }
 
-    const spiClk_t minFreqReg = { 0x7FFFF000 };
+    const spiClk_t minFreqReg = { 0x7FFFF020 };
     uint32_t minFreq = ClkRegToFreq((spiClk_t*) &minFreqReg);
     if(freq < minFreq) {
         // use minimum possible clock