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Fixed SSP, tested with Oscilloscope Write work fine (tested SPI Mode).

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For more details on tests see ssp/README.
This commit is contained in:
TitanMKD
2012-06-06 00:30:25 +02:00
parent 416f633dbb
commit 8adc873e84
5 changed files with 51 additions and 12 deletions
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2
include/libopencm3/lpc43xx/scu.h
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@@ -723,7 +723,7 @@ typedef enum {
#define SCU_GPIO_NOPULL (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EZI_EN_IN_BUFFER)
#define SCU_GPIO_FAST (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EHS_FAST | SCU_CONF_EZI_EN_IN_BUFFER | SCU_CONF_ZIF_DIS_IN_GLITCH_FILT)
#define SCU_UART_RX_TX (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EPD_EN_PULLDOWN | SCU_CONF_EZI_EN_IN_BUFFER)
#define SCU_SSP_IO (SCU_CONF_EPD_EN_PULLDOWN | SCU_CONF_EHS_FAST | SCU_CONF_EZI_EN_IN_BUFFER | SCU_CONF_ZIF_DIS_IN_GLITCH_FILT)
#define SCU_SSP_IO (SCU_CONF_EPUN_DIS_PULLUP | SCU_CONF_EHS_FAST | SCU_CONF_EZI_EN_IN_BUFFER | SCU_CONF_ZIF_DIS_IN_GLITCH_FILT)
void scu_pinmux(scu_grp_pin_t group_pin, u32 scu_conf);

6
include/libopencm3/lpc43xx/ssp.h
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@@ -159,11 +159,17 @@ typedef enum {
void ssp_disable(ssp_num_t ssp_num);
/*
* SSP Init
* clk_prescale shall be in range 2 to 254 (even number only).
* Clock computation: PCLK / (CPSDVSR * [SCR+1]) => CPSDVSR=clk_prescale, SCR=serial_clock_rate
*/
void ssp_init(ssp_num_t ssp_num,
ssp_datasize_t data_size,
ssp_frame_format_t frame_format,
ssp_cpol_cpha_t cpol_cpha_format,
u8 serial_clock_rate,
u8 clk_prescale,
ssp_mode_t mode,
ssp_master_slave_t master_slave,
ssp_slave_option_t slave_option);