From ab462755a961dd51d5a9d7d38a1a194dae9d3d93 Mon Sep 17 00:00:00 2001 From: drowe67 Date: Mon, 20 Apr 2015 22:18:14 +0000 Subject: [PATCH] added some comments re which pin DAC and ADC drivers are connected to git-svn-id: https://svn.code.sf.net/p/freetel/code@2121 01035d8c-6547-0410-b346-abe4f91aad63 --- codec2-dev/stm32/src/adc_rec.c | 4 +++- codec2-dev/stm32/src/dac_play.c | 3 ++- codec2-dev/stm32/src/stm32f4_adc.c | 3 ++- codec2-dev/stm32/src/stm32f4_dac.c | 3 ++- 4 files changed, 9 insertions(+), 4 deletions(-) diff --git a/codec2-dev/stm32/src/adc_rec.c b/codec2-dev/stm32/src/adc_rec.c index dd59b11b..c31c899d 100644 --- a/codec2-dev/stm32/src/adc_rec.c +++ b/codec2-dev/stm32/src/adc_rec.c @@ -4,7 +4,9 @@ AUTHOR......: David Rowe DATE CREATED: 30 May 2014 - Records a 16 kHz sample rate raw file from one of the ADC channels. + Records a 16 kHz sample rate raw file from one of the ADC channels, + which are connected to pins PA1 (ADC1) and PA2 (ADC2). + Note the semi-hosting system isn't fast enough to transfer 2 16 kHz streams at once. diff --git a/codec2-dev/stm32/src/dac_play.c b/codec2-dev/stm32/src/dac_play.c index 6a6c63e9..96777ebb 100644 --- a/codec2-dev/stm32/src/dac_play.c +++ b/codec2-dev/stm32/src/dac_play.c @@ -4,7 +4,8 @@ AUTHOR......: David Rowe DATE CREATED: 1 June 2013 - Plays a 16 kHz sample rate raw file to the STM32F4 DACs. + Plays a 16 kHz sample rate raw file to the STM32F4 DACs. DAC1 is + connected to pin PA4, DAC2 is connected to pin PA5. \*---------------------------------------------------------------------------*/ diff --git a/codec2-dev/stm32/src/stm32f4_adc.c b/codec2-dev/stm32/src/stm32f4_adc.c index 1aab0df5..cecdbe1d 100644 --- a/codec2-dev/stm32/src/stm32f4_adc.c +++ b/codec2-dev/stm32/src/stm32f4_adc.c @@ -4,7 +4,8 @@ AUTHOR......: David Rowe DATE CREATED: 4 June 2013 - Two channel ADC driver module for STM32F4. + Two channel ADC driver module for STM32F4. Pin PA1 connects to ADC1, pin + PA2 connects to ADC2. \*---------------------------------------------------------------------------*/ diff --git a/codec2-dev/stm32/src/stm32f4_dac.c b/codec2-dev/stm32/src/stm32f4_dac.c index 5f36402f..75416a39 100644 --- a/codec2-dev/stm32/src/stm32f4_dac.c +++ b/codec2-dev/stm32/src/stm32f4_dac.c @@ -4,7 +4,8 @@ AUTHOR......: David Rowe DATE CREATED: 1 June 2013 - DAC driver module for STM32F4. + DAC driver module for STM32F4. DAC1 is connected to pin PA4, DAC2 + is connected to pin PA5. \*---------------------------------------------------------------------------*/ -- 2.25.1