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Split out arm_atsam shift register logic (#14848)

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Joel Challis 2021-10-22 00:49:38 +01:00 • committed by GitHub
parent 1b93d576f8
commit 1b1f3ec68e
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10 changed files with 301 additions and 140 deletions
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18
keyboards/massdrop/alt/config.h
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@ -50,22 +50,18 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
/* This Shift Register expands available hardware output lines to control additional peripherals */
/* It uses four lines from the MCU to provide 16 output lines */
/* Shift Register Clock configuration (MCU to ShiftRegister.RCLK) */
#define SR_EXP_RCLK_PORT PB
#define SR_EXP_RCLK_PIN 14
#define SR_EXP_RCLK_PIN B14
/* Shift Register Output Enable configuration (MCU to ShiftRegister.OE_N) */
#define SR_EXP_OE_N_PORT PB
#define SR_EXP_OE_N_PIN 15
#define SR_EXP_OE_PIN B15
/* SERCOM port to use for Shift Register SPI */
/* DATAOUT and SCLK must be configured to use hardware pins of this port */
#define SR_EXP_SERCOM SERCOM2
#define SPI_SERCOM SERCOM2
/* Shift Register SPI Data Out configuration (MCU.SERCOMx.PAD[0] to ShiftRegister.SER) */
#define SR_EXP_DATAOUT_PORT PA
#define SR_EXP_DATAOUT_PIN 12
#define SR_EXP_DATAOUT_MUX 2
#define SPI_DATAOUT_PIN A12
#define SPI_DATAOUT_MUX 2
/* Shift Register SPI Serial Clock configuration (MCU.SERCOMx.PAD[1] to ShiftRegister.SRCLK) */
#define SR_EXP_SCLK_PORT PA
#define SR_EXP_SCLK_PIN 13
#define SR_EXP_SCLK_MUX 2
#define SPI_SCLK_PIN A13
#define SPI_SCLK_MUX 2
/* Debug LED (Small LED Located near MCU) */
#define DEBUG_LED_ENABLE 1