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SAMD20: Now runs, but no serial output

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This commit is contained in:
Gregory Nutt
2014-02-17 14:21:22 -06:00
parent 77fff39077
commit aa3d338c0f
2 changed files with 14 additions and 13 deletions
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configs/samd20-xplained/README.txt
+6 -6
View File
@@ -405,12 +405,12 @@ Serial Consoles
SERCOM4 is available on connectors EXT1 and EXT3 SERCOM4 is available on connectors EXT1 and EXT3
PIN EXT1 EXT3 GPIO Function PIN EXT1 EXT3 GPIO Function
---- ---- ------ ----------- ---- ---- ---- ------------------
13 PB09 PB13 SERCOM4 / USART RX 13 PB09 PB13 SERCOM4 / USART RX
14 PB08 PB12 SERCOM4 / USART TX 14 PB08 PB12 SERCOM4 / USART TX
19 19 GND 19 19 GND
20 20 VCC 20 20 VCC
If you have a TTL to RS-232 converter then this is the most convenient If you have a TTL to RS-232 converter then this is the most convenient
serial console to use. It is the default in all of these configurations. serial console to use. It is the default in all of these configurations.
configs/samd20-xplained/include/board.h
+8 -7
View File
@@ -56,13 +56,14 @@
/* Clocking *************************************************************************/ /* Clocking *************************************************************************/
/* Overview /* Overview
* *
* OSC8M Output = 8MHz * OSC8M Output = 8MHz
* `- GCLK1 Input = 8MHz Prescaler = 1 output = 8MHz * `- GCLK1 Input = 8MHz Prescaler = 1 output = 8MHz
* `- DFLL Input = 8MHz Multiplier = 6 output = 48MHz * `- DFLL Input = 8MHz Multiplier = 6 output = 48MHz
* `- PM Input = 48Mhz CPU divider = 1 CPU frequency = 48MHz * `- GCLK0 Input = 48MHz Prescaler = 1 output = 48MHz
* APBA divider = 1 APBA frequency = 48MHz * `- PM Input = 48Mhz CPU divider = 1 CPU frequency = 48MHz
* APBB divider = 1 APBB frequency = 48MHz * APBA divider = 1 APBA frequency = 48MHz
* APBC divider = 1 APBC frequency = 48MHz * APBB divider = 1 APBB frequency = 48MHz
* APBC divider = 1 APBC frequency = 48MHz
* *
* The SAMD20 Xplained Pro has one on-board crystal: * The SAMD20 Xplained Pro has one on-board crystal:
* *