Sojus07/hackrf
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ssp1_set_mode_max2837()/void ssp1_set_mode_max5864(void) SPI speed updated to 4.857MHz instead of 0.0498MHz

Browse Source 
To do test it to check there is no problem.
This commit is contained in:
TitanMKD
2013-03-20 22:20:47 +01:00
parent 7836911c45
commit d509489fff
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
firmware/common/hackrf_core.c
View File

@ -312,9 +312,15 @@ void ssp1_init(void)
void ssp1_set_mode_max2837(void) void ssp1_set_mode_max2837(void)
{ {
/* FIXME speed up once everything is working reliably */ /* FIXME speed up once everything is working reliably */
/*
// Freq About 0.0498MHz / 49.8KHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
const uint8_t serial_clock_rate = 32; const uint8_t serial_clock_rate = 32;
const uint8_t clock_prescale_rate = 128; const uint8_t clock_prescale_rate = 128;
*/
// Freq About 4.857MHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
const uint8_t serial_clock_rate = 21;
const uint8_t clock_prescale_rate = 2;
ssp_init(SSP1_NUM, ssp_init(SSP1_NUM,
SSP_DATA_16BITS, SSP_DATA_16BITS,
SSP_FRAME_SPI, SSP_FRAME_SPI,
@ -329,9 +335,15 @@ void ssp1_set_mode_max2837(void)
void ssp1_set_mode_max5864(void) void ssp1_set_mode_max5864(void)
{ {
/* FIXME speed up once everything is working reliably */ /* FIXME speed up once everything is working reliably */
/*
// Freq About 0.0498MHz / 49.8KHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
const uint8_t serial_clock_rate = 32; const uint8_t serial_clock_rate = 32;
const uint8_t clock_prescale_rate = 128; const uint8_t clock_prescale_rate = 128;
*/
// Freq About 4.857MHz => Freq = PCLK / (CPSDVSR * [SCR+1]) with PCLK=PLL1=204MHz
const uint8_t serial_clock_rate = 21;
const uint8_t clock_prescale_rate = 2;
ssp_init(SSP1_NUM, ssp_init(SSP1_NUM,
SSP_DATA_8BITS, SSP_DATA_8BITS,
SSP_FRAME_SPI, SSP_FRAME_SPI,