From 9f7296b3feab872bf51fc369ade69cc1e7cf7a3f Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 22 Dec 2010 21:06:22 -0800 Subject: [PATCH] altos: Split out SPI driver. For TM with the companion connector, the SPI bus will be shared among multiple devices. Split out the existing SPI code into a common driver, with the SPI bus protected by a mutex. Signed-off-by: Keith Packard --- src/Makefile.proto | 6 + src/ao.h | 13 ++ src/ao_ee.c | 133 ++------------------- src/ao_flash.c | 137 ++------------------- src/ao_pins.h | 22 ++++ src/ao_spi.c | 157 +++++++++++++++++++++++++ src/ao_telemetrum.c | 1 + src/telemetrum-v0.1-sirf/Makefile.defs | 1 + src/telemetrum-v0.1-sky/Makefile.defs | 1 + src/telemetrum-v1.0/Makefile.defs | 1 + 10 files changed, 217 insertions(+), 255 deletions(-) create mode 100644 src/ao_spi.c diff --git a/src/Makefile.proto b/src/Makefile.proto index b23eb257..c79638ac 100644 --- a/src/Makefile.proto +++ b/src/Makefile.proto @@ -71,6 +71,12 @@ TELE_DRIVER_SRC = \ ao_convert.c \ ao_serial.c +# +# Spi bus driver +# +SPI_DRIVER_SRC = \ + ao_spi.c + # # Debug dongle driver (only on TI) # diff --git a/src/ao.h b/src/ao.h index 9682e42f..69f4665b 100644 --- a/src/ao.h +++ b/src/ao.h @@ -736,6 +736,19 @@ void ao_serial_init(void); #endif +/* + * ao_spi.c + */ + +void +ao_spi_send(void __xdata *block, uint16_t len) __reentrant; + +void +ao_spi_recv(void __xdata *block, uint16_t len) __reentrant; + +void +ao_spi_init(void); + /* * ao_gps.c */ diff --git a/src/ao_ee.c b/src/ao_ee.c index 26cfb7fd..36c8a100 100644 --- a/src/ao_ee.c +++ b/src/ao_ee.c @@ -25,15 +25,8 @@ #define EE_CS P1_2 #define EE_CS_INDEX 2 -__xdata uint8_t ao_ee_dma_in_done; -__xdata uint8_t ao_ee_dma_out_done; __xdata uint8_t ao_ee_mutex; -uint8_t ao_ee_dma_out_id; -uint8_t ao_ee_dma_in_id; - -static __xdata uint8_t ao_ee_const = 0xff; - #define ao_ee_delay() do { \ _asm nop _endasm; \ _asm nop _endasm; \ @@ -54,82 +47,6 @@ void ao_ee_cs_high(void) ao_ee_delay(); } -/* Send bytes over SPI. - * - * This sets up two DMA engines, one writing the data and another reading - * bytes coming back. We use the bytes coming back to tell when the transfer - * is complete, as the transmit register is double buffered and hence signals - * completion one byte before the transfer is actually complete - */ -static void -ao_ee_send(void __xdata *block, uint16_t len) -{ - ao_dma_set_transfer(ao_ee_dma_in_id, - &U0DBUFXADDR, - &ao_ee_const, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_URX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_set_transfer(ao_ee_dma_out_id, - block, - &U0DBUFXADDR, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_UTX0, - DMA_CFG1_SRCINC_1 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_start(ao_ee_dma_in_id); - ao_dma_start(ao_ee_dma_out_id); - ao_dma_trigger(ao_ee_dma_out_id); - __critical while (!ao_ee_dma_in_done) - ao_sleep(&ao_ee_dma_in_done); -} - -/* Receive bytes over SPI. - * - * This sets up tow DMA engines, one reading the data and another - * writing constant values to the SPI transmitter as that is what - * clocks the data coming in. - */ -static void -ao_ee_recv(void __xdata *block, uint16_t len) -{ - ao_dma_set_transfer(ao_ee_dma_in_id, - &U0DBUFXADDR, - block, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_URX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_1 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_set_transfer(ao_ee_dma_out_id, - &ao_ee_const, - &U0DBUFXADDR, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_UTX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_start(ao_ee_dma_in_id); - ao_dma_start(ao_ee_dma_out_id); - ao_dma_trigger(ao_ee_dma_out_id); - __critical while (!ao_ee_dma_in_done) - ao_sleep(&ao_ee_dma_in_done); -} #define EE_BLOCK 256 @@ -143,7 +60,7 @@ ao_ee_write_enable(void) { ao_ee_cs_low(); ao_ee_instruction.instruction = EE_WREN; - ao_ee_send(&ao_ee_instruction, 1); + ao_spi_send(&ao_ee_instruction, 1); ao_ee_cs_high(); } @@ -152,8 +69,8 @@ ao_ee_rdsr(void) { ao_ee_cs_low(); ao_ee_instruction.instruction = EE_RDSR; - ao_ee_send(&ao_ee_instruction, 1); - ao_ee_recv(&ao_ee_instruction, 1); + ao_spi_send(&ao_ee_instruction, 1); + ao_spi_recv(&ao_ee_instruction, 1); ao_ee_cs_high(); return ao_ee_instruction.instruction; } @@ -164,7 +81,7 @@ ao_ee_wrsr(uint8_t status) ao_ee_cs_low(); ao_ee_instruction.instruction = EE_WRSR; ao_ee_instruction.address[0] = status; - ao_ee_send(&ao_ee_instruction, 2); + ao_spi_send(&ao_ee_instruction, 2); ao_ee_cs_high(); } @@ -191,8 +108,8 @@ ao_ee_write_block(void) ao_ee_instruction.address[0] = ao_ee_block >> 8; ao_ee_instruction.address[1] = ao_ee_block; ao_ee_instruction.address[2] = 0; - ao_ee_send(&ao_ee_instruction, 4); - ao_ee_send(ao_ee_data, EE_BLOCK); + ao_spi_send(&ao_ee_instruction, 4); + ao_spi_send(ao_ee_data, EE_BLOCK); ao_ee_cs_high(); for (;;) { uint8_t status = ao_ee_rdsr(); @@ -210,8 +127,8 @@ ao_ee_read_block(void) ao_ee_instruction.address[0] = ao_ee_block >> 8; ao_ee_instruction.address[1] = ao_ee_block; ao_ee_instruction.address[2] = 0; - ao_ee_send(&ao_ee_instruction, 4); - ao_ee_recv(ao_ee_data, EE_BLOCK); + ao_spi_send(&ao_ee_instruction, 4); + ao_spi_recv(ao_ee_data, EE_BLOCK); ao_ee_cs_high(); } @@ -423,39 +340,5 @@ ao_ee_init(void) P1DIR |= (1 << EE_CS_INDEX); P1SEL &= ~(1 << EE_CS_INDEX); - /* Set up the USART pin assignment */ - PERCFG = (PERCFG & ~PERCFG_U0CFG_ALT_MASK) | PERCFG_U0CFG_ALT_2; - - /* Ensure that USART0 takes precidence over USART1 for pins that - * they share - */ - P2SEL = (P2SEL & ~P2SEL_PRI3P1_MASK) | P2SEL_PRI3P1_USART0; - - /* Make the SPI pins be controlled by the USART peripheral */ - P1SEL |= ((1 << 5) | (1 << 4) | (1 << 3)); - - /* Set up OUT DMA */ - ao_ee_dma_out_id = ao_dma_alloc(&ao_ee_dma_out_done); - - /* Set up IN DMA */ - ao_ee_dma_in_id = ao_dma_alloc(&ao_ee_dma_in_done); - - /* Set up the USART. - * - * SPI master mode - */ - U0CSR = (UxCSR_MODE_SPI | UxCSR_RE | UxCSR_MASTER); - - /* Set the baud rate and signal parameters - * - * The cc1111 is limited to a 24/8 MHz SPI clock, - * while the 25LC1024 is limited to 20MHz. So, - * use the 3MHz clock (BAUD_E 17, BAUD_M 0) - */ - U0BAUD = 0; - U0GCR = (UxGCR_CPOL_NEGATIVE | - UxGCR_CPHA_FIRST_EDGE | - UxGCR_ORDER_MSB | - (17 << UxGCR_BAUD_E_SHIFT)); ao_cmd_register(&ao_ee_cmds[0]); } diff --git a/src/ao_flash.c b/src/ao_flash.c index 638e51e0..4f3618ee 100644 --- a/src/ao_flash.c +++ b/src/ao_flash.c @@ -18,22 +18,11 @@ #include "ao.h" #include "at45db161d.h" -/* - * Using SPI on USART 0, with P1_1 as the chip select - */ - #define FLASH_CS P1_1 #define FLASH_CS_INDEX 1 -__xdata uint8_t ao_flash_dma_in_done; -__xdata uint8_t ao_flash_dma_out_done; __xdata uint8_t ao_flash_mutex; -uint8_t ao_flash_dma_out_id; -uint8_t ao_flash_dma_in_id; - -static __xdata uint8_t ao_flash_const = 0xff; - #define ao_flash_delay() do { \ _asm nop _endasm; \ _asm nop _endasm; \ @@ -54,83 +43,6 @@ void ao_flash_cs_high(void) ao_flash_delay(); } -/* Send bytes over SPI. - * - * This sets up two DMA engines, one writing the data and another reading - * bytes coming back. We use the bytes coming back to tell when the transfer - * is complete, as the transmit register is double buffered and hence signals - * completion one byte before the transfer is actually complete - */ -static void -ao_flash_send(void __xdata *block, uint16_t len) -{ - ao_dma_set_transfer(ao_flash_dma_in_id, - &U0DBUFXADDR, - &ao_flash_const, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_URX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_set_transfer(ao_flash_dma_out_id, - block, - &U0DBUFXADDR, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_UTX0, - DMA_CFG1_SRCINC_1 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_start(ao_flash_dma_in_id); - ao_dma_start(ao_flash_dma_out_id); - ao_dma_trigger(ao_flash_dma_out_id); - __critical while (!ao_flash_dma_in_done) - ao_sleep(&ao_flash_dma_in_done); -} - -/* Receive bytes over SPI. - * - * This sets up tow DMA engines, one reading the data and another - * writing constant values to the SPI transmitter as that is what - * clocks the data coming in. - */ -static void -ao_flash_recv(void __xdata *block, uint16_t len) -{ - ao_dma_set_transfer(ao_flash_dma_in_id, - &U0DBUFXADDR, - block, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_URX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_1 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_set_transfer(ao_flash_dma_out_id, - &ao_flash_const, - &U0DBUFXADDR, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_UTX0, - DMA_CFG1_SRCINC_0 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_NORMAL); - - ao_dma_start(ao_flash_dma_in_id); - ao_dma_start(ao_flash_dma_out_id); - ao_dma_trigger(ao_flash_dma_out_id); - __critical while (!ao_flash_dma_in_done) - ao_sleep(&ao_flash_dma_in_done); -} - struct ao_flash_instruction { uint8_t instruction; uint8_t address[3]; @@ -144,7 +56,7 @@ ao_flash_set_pagesize_512(void) ao_flash_instruction.address[0] = FLASH_SET_512_BYTE_0; ao_flash_instruction.address[1] = FLASH_SET_512_BYTE_1; ao_flash_instruction.address[2] = FLASH_SET_512_BYTE_2; - ao_flash_send(&ao_flash_instruction, 4); + ao_spi_send(&ao_flash_instruction, 4); ao_flash_cs_high(); } @@ -154,8 +66,8 @@ ao_flash_read_status(void) { ao_flash_cs_low(); ao_flash_instruction.instruction = FLASH_READ_STATUS; - ao_flash_send(&ao_flash_instruction, 1); - ao_flash_recv(&ao_flash_instruction, 1); + ao_spi_send(&ao_flash_instruction, 1); + ao_spi_recv(&ao_flash_instruction, 1); ao_flash_cs_high(); return ao_flash_instruction.instruction; } @@ -268,8 +180,8 @@ ao_flash_write_block(void) ao_flash_instruction.address[0] = ao_flash_block >> (16 - ao_flash_block_shift); ao_flash_instruction.address[1] = ao_flash_block << (ao_flash_block_shift - 8); ao_flash_instruction.address[2] = 0; - ao_flash_send(&ao_flash_instruction, 4); - ao_flash_send(ao_flash_data, FLASH_BLOCK_SIZE); + ao_spi_send(&ao_flash_instruction, 4); + ao_spi_send(ao_flash_data, FLASH_BLOCK_SIZE); ao_flash_cs_high(); ao_flash_write_pending = 1; } @@ -286,8 +198,8 @@ ao_flash_read_block(void) ao_flash_instruction.address[0] = ao_flash_block >> (16 - ao_flash_block_shift); ao_flash_instruction.address[1] = ao_flash_block << (ao_flash_block_shift - 8); ao_flash_instruction.address[2] = 0; - ao_flash_send(&ao_flash_instruction, 4); - ao_flash_recv(ao_flash_data, FLASH_BLOCK_SIZE); + ao_spi_send(&ao_flash_instruction, 4); + ao_spi_recv(ao_flash_data, FLASH_BLOCK_SIZE); ao_flash_cs_high(); } @@ -543,40 +455,5 @@ ao_ee_init(void) FLASH_CS = 1; P1DIR |= (1 << FLASH_CS_INDEX); P1SEL &= ~(1 << FLASH_CS_INDEX); - - /* Set up the USART pin assignment */ - PERCFG = (PERCFG & ~PERCFG_U0CFG_ALT_MASK) | PERCFG_U0CFG_ALT_2; - - /* Ensure that USART0 takes precidence over USART1 for pins that - * they share - */ - P2SEL = (P2SEL & ~P2SEL_PRI3P1_MASK) | P2SEL_PRI3P1_USART0; - - /* Make the SPI pins be controlled by the USART peripheral */ - P1SEL |= ((1 << 5) | (1 << 4) | (1 << 3)); - - /* Set up OUT DMA */ - ao_flash_dma_out_id = ao_dma_alloc(&ao_flash_dma_out_done); - - /* Set up IN DMA */ - ao_flash_dma_in_id = ao_dma_alloc(&ao_flash_dma_in_done); - - /* Set up the USART. - * - * SPI master mode - */ - U0CSR = (UxCSR_MODE_SPI | UxCSR_RE | UxCSR_MASTER); - - /* Set the baud rate and signal parameters - * - * The cc1111 is limited to a 24/8 MHz SPI clock, - * while the at45db161d.h is limited to 20MHz. So, - * use the 3MHz clock (BAUD_E 17, BAUD_M 0) - */ - U0BAUD = 0; - U0GCR = (UxGCR_CPOL_NEGATIVE | - UxGCR_CPHA_FIRST_EDGE | - UxGCR_ORDER_MSB | - (17 << UxGCR_BAUD_E_SHIFT)); ao_cmd_register(&ao_flash_cmds[0]); } diff --git a/src/ao_pins.h b/src/ao_pins.h index e9a265b0..edbb4908 100644 --- a/src/ao_pins.h +++ b/src/ao_pins.h @@ -31,6 +31,8 @@ #define AO_LED_RED 1 #define LEDS_AVAILABLE (AO_LED_RED) #define HAS_EXTERNAL_TEMP 0 + #define SPI_CS_ON_P1 1 + #define SPI_CS_ON_P0 0 #endif #if defined(TELEDONGLE_V_0_2) @@ -45,6 +47,8 @@ #define AO_LED_RED 1 #define AO_LED_GREEN 2 #define LEDS_AVAILABLE (AO_LED_RED|AO_LED_GREEN) + #define SPI_CS_ON_P1 1 + #define SPI_CS_ON_P0 0 #endif #if defined(TELEMETRUM_V_0_1) @@ -60,6 +64,8 @@ #define AO_LED_GREEN 1 #define LEDS_AVAILABLE (AO_LED_RED|AO_LED_GREEN) #define HAS_EXTERNAL_TEMP 1 + #define SPI_CS_ON_P1 1 + #define SPI_CS_ON_P0 0 #endif #if defined(TELEDONGLE_V_0_1) @@ -74,6 +80,8 @@ #define AO_LED_RED 2 #define AO_LED_GREEN 1 #define LEDS_AVAILABLE (AO_LED_RED|AO_LED_GREEN) + #define SPI_CS_ON_P1 0 + #define SPI_CS_ON_P0 1 #endif #if defined(TIDONGLE) @@ -87,6 +95,8 @@ #define PACKET_HAS_SLAVE 0 #define AO_LED_RED 2 #define LEDS_AVAILABLE (AO_LED_RED) + #define SPI_CS_ON_P1 0 + #define SPI_CS_ON_P0 1 #endif #if DBG_ON_P1 @@ -125,6 +135,18 @@ #endif /* DBG_ON_P0 */ +#if SPI_CS_ON_P1 + #define SPI_CS_PORT P1 + #define SPI_CS_SEL P1SEL + #define SPI_CS_DIR P1DIR +#endif + +#if SPI_CS_ON_P0 + #define SPI_CS_PORT P0 + #define SPI_CS_SEL P0SEL + #define SPI_CS_DIR P0DIR +#endif + #ifndef HAS_SERIAL_1 #error Please define HAS_SERIAL_1 #endif diff --git a/src/ao_spi.c b/src/ao_spi.c new file mode 100644 index 00000000..bd52a0d4 --- /dev/null +++ b/src/ao_spi.c @@ -0,0 +1,157 @@ +/* + * Copyright © 2010 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include "ao.h" + +__xdata uint8_t ao_spi_mutex; +__xdata uint8_t ao_spi_dma_in_done; +__xdata uint8_t ao_spi_dma_out_done; + +uint8_t ao_spi_dma_out_id; +uint8_t ao_spi_dma_in_id; + +static __xdata uint8_t ao_spi_const = 0xff; + +/* Send bytes over SPI. + * + * This sets up two DMA engines, one writing the data and another reading + * bytes coming back. We use the bytes coming back to tell when the transfer + * is complete, as the transmit register is double buffered and hence signals + * completion one byte before the transfer is actually complete + */ +void +ao_spi_send(void __xdata *block, uint16_t len) __reentrant +{ + ao_mutex_get(&ao_spi_mutex); + ao_dma_set_transfer(ao_spi_dma_in_id, + &U0DBUFXADDR, + &ao_spi_const, + len, + DMA_CFG0_WORDSIZE_8 | + DMA_CFG0_TMODE_SINGLE | + DMA_CFG0_TRIGGER_URX0, + DMA_CFG1_SRCINC_0 | + DMA_CFG1_DESTINC_0 | + DMA_CFG1_PRIORITY_NORMAL); + + ao_dma_set_transfer(ao_spi_dma_out_id, + block, + &U0DBUFXADDR, + len, + DMA_CFG0_WORDSIZE_8 | + DMA_CFG0_TMODE_SINGLE | + DMA_CFG0_TRIGGER_UTX0, + DMA_CFG1_SRCINC_1 | + DMA_CFG1_DESTINC_0 | + DMA_CFG1_PRIORITY_NORMAL); + + ao_dma_start(ao_spi_dma_in_id); + ao_dma_start(ao_spi_dma_out_id); + ao_dma_trigger(ao_spi_dma_out_id); + __critical while (!ao_spi_dma_in_done) + ao_sleep(&ao_spi_dma_in_done); + ao_mutex_put(&ao_spi_mutex); +} + +/* Receive bytes over SPI. + * + * This sets up tow DMA engines, one reading the data and another + * writing constant values to the SPI transmitter as that is what + * clocks the data coming in. + */ +void +ao_spi_recv(void __xdata *block, uint16_t len) __reentrant +{ + ao_mutex_get(&ao_spi_mutex); + ao_dma_set_transfer(ao_spi_dma_in_id, + &U0DBUFXADDR, + block, + len, + DMA_CFG0_WORDSIZE_8 | + DMA_CFG0_TMODE_SINGLE | + DMA_CFG0_TRIGGER_URX0, + DMA_CFG1_SRCINC_0 | + DMA_CFG1_DESTINC_1 | + DMA_CFG1_PRIORITY_NORMAL); + + ao_dma_set_transfer(ao_spi_dma_out_id, + &ao_spi_const, + &U0DBUFXADDR, + len, + DMA_CFG0_WORDSIZE_8 | + DMA_CFG0_TMODE_SINGLE | + DMA_CFG0_TRIGGER_UTX0, + DMA_CFG1_SRCINC_0 | + DMA_CFG1_DESTINC_0 | + DMA_CFG1_PRIORITY_NORMAL); + + ao_dma_start(ao_spi_dma_in_id); + ao_dma_start(ao_spi_dma_out_id); + ao_dma_trigger(ao_spi_dma_out_id); + __critical while (!ao_spi_dma_in_done) + ao_sleep(&ao_spi_dma_in_done); + ao_mutex_put(&ao_spi_mutex); +} + +/* + * Initialize USART0 for SPI using config alt 2 + * + * MO P1_5 + * MI P1_4 + * CLK P1_3 + * + * Chip select is the responsibility of the caller + */ + +void +ao_spi_init(void) +{ + /* Set up the USART pin assignment */ + PERCFG = (PERCFG & ~PERCFG_U0CFG_ALT_MASK) | PERCFG_U0CFG_ALT_2; + + /* Ensure that USART0 takes precidence over USART1 for pins that + * they share + */ + P2SEL = (P2SEL & ~P2SEL_PRI3P1_MASK) | P2SEL_PRI3P1_USART0; + + /* Make the SPI pins be controlled by the USART peripheral */ + P1SEL |= ((1 << 5) | (1 << 4) | (1 << 3)); + + /* Set up OUT DMA */ + ao_spi_dma_out_id = ao_dma_alloc(&ao_spi_dma_out_done); + + /* Set up IN DMA */ + ao_spi_dma_in_id = ao_dma_alloc(&ao_spi_dma_in_done); + + /* Set up the USART. + * + * SPI master mode + */ + U0CSR = (UxCSR_MODE_SPI | UxCSR_RE | UxCSR_MASTER); + + /* Set the baud rate and signal parameters + * + * The cc1111 is limited to a 24/8 MHz SPI clock. + * Every peripheral I've ever seen goes faster than that, + * so set the clock to 3MHz (BAUD_E 17, BAUD_M 0) + */ + U0BAUD = 0; + U0GCR = (UxGCR_CPOL_NEGATIVE | + UxGCR_CPHA_FIRST_EDGE | + UxGCR_ORDER_MSB | + (17 << UxGCR_BAUD_E_SHIFT)); +} diff --git a/src/ao_telemetrum.c b/src/ao_telemetrum.c index fd0adae8..1209c820 100644 --- a/src/ao_telemetrum.c +++ b/src/ao_telemetrum.c @@ -48,6 +48,7 @@ main(void) ao_adc_init(); ao_beep_init(); ao_cmd_init(); + ao_spi_init(); ao_ee_init(); ao_flight_init(); ao_log_init(); diff --git a/src/telemetrum-v0.1-sirf/Makefile.defs b/src/telemetrum-v0.1-sirf/Makefile.defs index a7310fbc..ac8dcdb9 100644 --- a/src/telemetrum-v0.1-sirf/Makefile.defs +++ b/src/telemetrum-v0.1-sirf/Makefile.defs @@ -2,6 +2,7 @@ PROG = telemetrum-v0.1-sirf-$(VERSION).ihx SRC = \ $(TM_BASE_SRC) \ + $(SPI_DRIVER_SRC) \ $(EE_DRIVER_SRC) \ $(SIRF_DRIVER_SRC) \ $(DBG_SRC) diff --git a/src/telemetrum-v0.1-sky/Makefile.defs b/src/telemetrum-v0.1-sky/Makefile.defs index 000287ba..e032d1eb 100644 --- a/src/telemetrum-v0.1-sky/Makefile.defs +++ b/src/telemetrum-v0.1-sky/Makefile.defs @@ -2,6 +2,7 @@ PROG = telemetrum-v0.1-sky-$(VERSION).ihx SRC = \ $(TM_BASE_SRC) \ + $(SPI_DRIVER_SRC) \ $(EE_DRIVER_SRC) \ $(SKY_DRIVER_SRC) \ $(DBG_SRC) diff --git a/src/telemetrum-v1.0/Makefile.defs b/src/telemetrum-v1.0/Makefile.defs index 010578df..a60a501a 100644 --- a/src/telemetrum-v1.0/Makefile.defs +++ b/src/telemetrum-v1.0/Makefile.defs @@ -2,6 +2,7 @@ PROG = telemetrum-v1.0-$(VERSION).ihx SRC = \ $(TM_BASE_SRC) \ + $(SPI_DRIVER_SRC) \ $(FLASH_DRIVER_SRC) \ $(SKY_DRIVER_SRC) \ $(DBG_SRC) -- 2.30.2