Question

1. Register GPIOx_PDDR is used for configuring the direction GPIO ports (logic 0 sets the port pin as input). Write embedded C codes to configure the direction of ports in Figure 1 to read the push button switch and display its status on the LED. Vee Push Button PTD10 PTA7 LED 220? 10k? FRDM KL25Z Figure 1 2. Write embedded C codes to turn ON the LED in Figure 1 using GPIOx_PSOR or GPIOX_PCOR. 3. A 4x4-matrix keypad is interfaced with the microcontroller as shown in Figure 2 a. Write embedded C codes to set the direction of Ports using the GPIOx_PDDR register to scan the keys. Vee 4.7K R1 D4 R2 D4 R3 D6 R4 D7 PORT B D1 D2 D3 D4 PORT A Figure 2 b. If GPIOA_PDIR= 0xFD while GPIOB_PDOR = 0x7F, the key pressed is

          1. Register GPIOx_PDDR is used for configuring the direction GPIO ports (logic 0 sets the port pin
as input). Write embedded C codes to configure the direction of ports in Figure 1 to read the push
button switch and display its status on the LED.
Vee
Push
Button
PTD10
PTA7
LED
220?
10k?
FRDM KL25Z
Figure 1
2. Write embedded C codes to turn ON the LED in Figure 1 using GPIOx_PSOR or GPIOX_PCOR.
3. A 4x4-matrix keypad is interfaced with the
microcontroller as shown in Figure 2
a. Write embedded C codes to set the direction of Ports
using the GPIOx_PDDR register to scan the keys.
Vee
4.7K
R1
D4
R2
D4
R3
D6
R4
D7
PORT B
D1
D2
D3
D4
PORT A
Figure 2
b. If GPIOA_PDIR= 0xFD while GPIOB_PDOR = 0x7F, the key pressed is

1. Register GPIOxPDDR is used for configuring the direction GPIO ports (logic 0 sets the port pin
as input). Write embedded C codes to configure the direction of ports in Figure 1 to read the push
button switch and display its status on the LED.
Vee
Push
Button
PTD10
PTA7
LED
220?
10k?
FRDM KL25Z
Figure 1
2. Write embedded C codes to turn ON the LED in Figure 1 using GPIOxPSOR or GPIOXPCOR.
3. A 4x4-matrix keypad is interfaced with the
microcontroller as shown in Figure 2
a. Write embedded C codes to set the direction of Ports
using the GPIOxPDDR register to scan the keys.
Vee
4.7K
R1
D4
R2
D4
R3
D6
R4
D7
PORT B
D1
D2
D3
D4
PORT A
Figure 2
b. If GPIOAPDIR= 0xFD while GPIOBPDOR = 0x7F, the key pressed is

Added by Steven M.

Question

Please give Ace some feedback