configure GCLK for ISO baud rates
the SERCOMM clock triplet 0.5 MHz (100 MHz / 200),
7.0588 MHz (120 MHz / 17), and 50 MHz (100 MHz / 2) allows to
generate all possible ISO 7816 baud rates (from
F = 2048 / D = 1 @ f = 2.5 MHz -> 1220 bps to
F = 372 / D = 64 @ f = 20 MHz -> 3.4 Mbps) with a maximum baud
rate error of 2.57 %, for available SIM clocks 2.5, 5, 10, 20 MHz.
2.57% means a bit more than quarter a bit might be wrong after the
11 bits ISO transmission (still less than half a bit).
This triplet is one of the optimum when 3 clocks are used.
An additional clock would be required for higher accuracy.
The 50 MHz clock is re-used from the RMII clock output.
Change-Id: I2c69848582e49031fa6453f535a2bf1408f8e22e
diff --git a/sysmoOCTSIM/config/hpl_gclk_config.h b/sysmoOCTSIM/config/hpl_gclk_config.h
index 81a1f03..158fc93 100644
--- a/sysmoOCTSIM/config/hpl_gclk_config.h
+++ b/sysmoOCTSIM/config/hpl_gclk_config.h
@@ -226,7 +226,7 @@
//<o> Generic clock generator 2 division <0x0000-0xFFFF>
// <id> gclk_gen_2_div
#ifndef CONF_GCLK_GEN_2_DIV
-#define CONF_GCLK_GEN_2_DIV 30
+#define CONF_GCLK_GEN_2_DIV 200
#endif
// </h>
// </e>
@@ -463,7 +463,7 @@
// <i> Indicates whether generic clock 6 configuration is enabled or not
// <id> enable_gclk_gen_6
#ifndef CONF_GCLK_GENERATOR_6_CONFIG
-#define CONF_GCLK_GENERATOR_6_CONFIG 0
+#define CONF_GCLK_GENERATOR_6_CONFIG 1
#endif
// <h> Generic Clock Generator Control
@@ -480,7 +480,7 @@
// <i> This defines the clock source for generic clock generator 6
// <id> gclk_gen_6_oscillator
#ifndef CONF_GCLK_GEN_6_SOURCE
-#define CONF_GCLK_GEN_6_SOURCE GCLK_GENCTRL_SRC_XOSC1
+#define CONF_GCLK_GEN_6_SOURCE GCLK_GENCTRL_SRC_DPLL0
#endif
// <q> Run in Standby
@@ -522,7 +522,7 @@
// <i> Indicates whether Generic Clock Generator Enable is enabled or not
// <id> gclk_arch_gen_6_enable
#ifndef CONF_GCLK_GEN_6_GENEN
-#define CONF_GCLK_GEN_6_GENEN 0
+#define CONF_GCLK_GEN_6_GENEN 1
#endif
// </h>
@@ -530,7 +530,7 @@
//<o> Generic clock generator 6 division <0x0000-0xFFFF>
// <id> gclk_gen_6_div
#ifndef CONF_GCLK_GEN_6_DIV
-#define CONF_GCLK_GEN_6_DIV 1
+#define CONF_GCLK_GEN_6_DIV 17
#endif
// </h>
// </e>