Nxp chip library routines
From Wiki at Neela Nurseries
CMSIS Library Routines and Details,
LPC1xxx Board Routines
notes started 2018-10-25 THU
LPC11U14 board routines . . .
First search, looking for how NXP demo toggles a given GPIO:
user:~/Downloads/nxp/lpcopen$ grep -nr Board_LED_Toggle ./* ./nxp_lpcxpresso_11u14_board_lib/src/board.c:137:void Board_LED_Toggle(uint8_t LEDNumber) ./nxp_lpcxpresso_11u14_board_lib/inc/board_api.h:112:void Board_LED_Toggle(uint8_t LEDNumber); ./nxp_lpcxpresso_11u14_periph_clkout/example/src/clkout.c:77: Board_LED_Toggle(0); ./nxp_lpcxpresso_11u14_periph_pinint/example/src/pinint.c:187: Board_LED_Toggle(0); ./nxp_lpcxpresso_11u14_periph_uart/example/src/uart.c:135: Board_LED_Toggle(0);/* Toggle LED if the TX FIFO is full */ ./nxp_lpcxpresso_11u14_periph_watchdog/example/src/watchdog.c:65: Board_LED_Toggle(0); ./nxp_lpcxpresso_11u14_periph_watchdog/example/src/watchdog.c:72: Board_LED_Toggle(0);
The routine itself in file ~/Downloads/nxp/lpcopen/nxp_lpcxpresso_11u14_board_lib/src/board.c:
137 void Board_LED_Toggle(uint8_t LEDNumber)
138 {^M
139 if (LEDNumber == 0)^M
140 Chip_GPIO_SetPinToggle(LPC_GPIO, 0, 7);
141 }
Next search:
$ grep -nr Chip_GPIO_SetPinToggle ./* user:~/Downloads/nxp/lpcopen$ grep -nr Chip_GPIO_SetPinToggle ./* ./lpc_chip_11uxx_lib/inc/gpio_11xx_1.h:447:STATIC INLINE void Chip_GPIO_SetPinToggle(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pin) Binary file ./nxp_lpcxpresso_11u14_board_lib/src/.board.c.swp matches ./nxp_lpcxpresso_11u14_board_lib/src/board.c:140: Chip_GPIO_SetPinToggle(LPC_GPIO, 0, 7);
And the lower level routine itself in file ./lpc_chip_11uxx_lib/inc/gpio_11xx_1.h:
438 /**^M
439 * @brief Toggle an individual GPIO output pin to the opposite state^M
440 * @param pGPIO : The base of GPIO peripheral on the chip^M
441 * @param port : GPIO Port number where @a pin is located^M
442 * @param pin : pin number (0..n) to toggle^M
443 * @return None^M
444 * @note Any bit set as a '0' will not have it's state changed. This only^M
445 * applies to ports configured as an output.^M
446 */^M
447 STATIC INLINE void Chip_GPIO_SetPinToggle(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pin)^M
448 {^M
449 pGPIO->NOT[port] = (1 << pin);^M
450 }^M
So where is pGPIO defined?
^ LPC_GPIO_TYPEDEF
$ pwd .../Firmware/V1_1$ $ grep -nr LPC_GPIO_TypeDef ./* | grep LPC11 ./LPC11xx.h:295:} LPC_GPIO_TypeDef; ./LPC11xx.h:490:#define LPC_GPIO0 ((LPC_GPIO_TypeDef *) LPC_GPIO0_BASE ) ./LPC11xx.h:491:#define LPC_GPIO1 ((LPC_GPIO_TypeDef *) LPC_GPIO1_BASE ) ./LPC11xx.h:492:#define LPC_GPIO2 ((LPC_GPIO_TypeDef *) LPC_GPIO2_BASE ) ./LPC11xx.h:493:#define LPC_GPIO3 ((LPC_GPIO_TypeDef *) LPC_GPIO3_BASE ) Binary file ./Release/Obj/sysconfig_LPC11xx.pbi matches ./initial-firmware-works/Unit_Test/apptask/LPC11xx.h:192:} LPC_GPIO_TypeDef; ./initial-firmware-works/Unit_Test/apptask/LPC11xx.h:204:extern LPC_GPIO_TypeDef gpio; ./initial-firmware-works/Unit_Test/px3_system/LPC11xx.h:192:} LPC_GPIO_TypeDef; ./initial-firmware-works/Unit_Test/px3_system/LPC11xx.h:204:extern LPC_GPIO_TypeDef gpio; ./initial-firmware-works/FloatingPoint/LPC11xx.h:295:} LPC_GPIO_TypeDef; ./initial-firmware-works/FloatingPoint/LPC11xx.h:490:#define LPC_GPIO0 ((LPC_GPIO_TypeDef *) LPC_GPIO0_BASE ) ./initial-firmware-works/FloatingPoint/LPC11xx.h:491:#define LPC_GPIO1 ((LPC_GPIO_TypeDef *) LPC_GPIO1_BASE ) ./initial-firmware-works/FloatingPoint/LPC11xx.h:492:#define LPC_GPIO2 ((LPC_GPIO_TypeDef *) LPC_GPIO2_BASE ) ./initial-firmware-works/FloatingPoint/LPC11xx.h:493:#define LPC_GPIO3 ((LPC_GPIO_TypeDef *) LPC_GPIO3_BASE ) ./initial-firmware-works/Obsolete (FixedPoint)/LPC11xx.h:295:} LPC_GPIO_TypeDef; ./initial-firmware-works/Obsolete (FixedPoint)/LPC11xx.h:490:#define LPC_GPIO0 ((LPC_GPIO_TypeDef *) LPC_GPIO0_BASE ) ./initial-firmware-works/Obsolete (FixedPoint)/LPC11xx.h:491:#define LPC_GPIO1 ((LPC_GPIO_TypeDef *) LPC_GPIO1_BASE ) ./initial-firmware-works/Obsolete (FixedPoint)/LPC11xx.h:492:#define LPC_GPIO2 ((LPC_GPIO_TypeDef *) LPC_GPIO2_BASE ) ./initial-firmware-works/Obsolete (FixedPoint)/LPC11xx.h:493:#define LPC_GPIO3 ((LPC_GPIO_TypeDef *) LPC_GPIO3_BASE )
Using Timers As Pulsewidth Modulators
./io_tmr16b1.c:89:// Enable/disable interrupts for PWM: ./io_tmr16b1.h:9: Using this driver for PWM: ./io_tmr16b1.h:13: 3) Reset the PWM system by calling IO_TMR16B1_ResetPWM(), ./io_tmr16b1.h:14: 4) Enable PWM channels by calling IO_TMR16B1_EnablePWM(), ./io_tmr16b1.h:15: 5) Start PWM by calling IO_TMR16B1_StartPWM() and supplying ./io_tmr16b1.h:17: 6) Set and change the PWM level by calling IO_TMR16B1_SetPwmLevel(). ./io_tmr16b1.h:19: When a match register matches (during PWM, for example), a ./io_tmr16b1.h:43:void IO_TMR16B1_EnablePWM(tmr16b1_chan_t chan); ./io_tmr16b1.h:44:void IO_TMR16B1_ResetPWM(void); ./io_tmr16b1.h:45:void IO_TMR16B1_StartPWM(uint16_t resolution); ./io_tmr32b0.c:46: // Configure PWM output on channels 0, 1, or 2. ./io_tmr32b0.c:49:void IO_TMR32B0_EnablePWM(tmr32b0_chan_t chan) ./io_tmr32b0.c:53: case TMR32B0_CHAN_0: LPC_TMR32B0->PWMC |= TMR_PWM_ENA_MR0; break; ./io_tmr32b0.c:54: case TMR32B0_CHAN_1: LPC_TMR32B0->PWMC |= TMR_PWM_ENA_MR1; break; ./io_tmr32b0.c:55: case TMR32B0_CHAN_2: LPC_TMR32B0->PWMC |= TMR_PWM_ENA_MR2; break; ./io_tmr32b0.c:60: // Configure PWM output on channels 0, 1, or 2. ./io_tmr32b0.c:63:void IO_TMR32B0_ResetPWM(void) ./io_tmr32b0.c:65: LPC_TMR32B0->PWMC = 0; ./io_tmr32b0.c:69:void IO_TMR32B0_StartPWM(uint32_t resolution) ./io_tmr32b0.c:83:// Enable/disable interrupts for PWM: ./io_tmr32b0.h:29:void IO_TMR32B0_EnablePWM(tmr32b0_chan_t chan); ./io_tmr32b0.h:30:void IO_TMR32B0_ResetPWM(void); ./io_tmr32b0.h:31:void IO_TMR32B0_StartPWM(uint32_t resolution); ./io_tmr32b1.c:45: // Configure PWM output on channels 0, 1, or 2. ./io_tmr32b1.c:48:void IO_TMR32B1_EnablePWM(tmr32b1_chan_t chan) ./io_tmr32b1.c:52: case TMR32B1_CHAN_0: LPC_TMR32B1->PWMC |= TMR_PWM_ENA_MR0; break; ./io_tmr32b1.c:53: case TMR32B1_CHAN_1: LPC_TMR32B1->PWMC |= TMR_PWM_ENA_MR1; break; ./io_tmr32b1.c:54: case TMR32B1_CHAN_2: LPC_TMR32B1->PWMC |= TMR_PWM_ENA_MR2; break; ./io_tmr32b1.c:59: // Configure PWM output on channels 0, 1, or 2. ./io_tmr32b1.c:62:void IO_TMR32B1_ResetPWM(void) ./io_tmr32b1.c:64: LPC_TMR32B1->PWMC = 0; ./io_tmr32b1.c:68:void IO_TMR32B1_StartPWM(uint32_t resolution) ./io_tmr32b1.c:82:// Enable/disable interrupts for PWM: ./io_tmr32b1.h:29:void IO_TMR32B1_EnablePWM(tmr32b1_chan_t chan); ./io_tmr32b1.h:30:void IO_TMR32B1_ResetPWM(void); ./io_tmr32b1.h:31:void IO_TMR32B1_StartPWM(uint32_t resolution);
