No output from TIM2 in compare mode on STM8L101F3

[AMacd.1]

I am trying to get a pulse out of TIM2 in compare mode but I see no output.

Here is my snippet of code:

#include "iostm8l101f3.h"
void main( void )
{
 CLK_CKDIVR = 0x01; // 8MHz
 PA_CR1 = 0xFF; // all pullups
 PB_DDR = 0x01; // 0000 0001 = PB0 (TIM2 CCR1) output, all other input
 PB_CR1 = 0xFF; // 1111 1111 = Pullups: PB1-PB7, push-pull: PB0
 PC_ODR = 0x01; // PC0 high, PC1 low
 PC_DDR = 0x03; // PC0 and PC1 output, rest are input
 PC_CR1 = 0xFC; // Pullups on inputs PC2 - PC7
 PD_CR1 = 0xFF; // Pullup on PD0-PD7
 
 CLK_PCKENR |= 0x1; // enable TIM2 clock
 TIM2_ARRH = 0x07; // period high byte
 TIM2_ARRL = 0xD0; // period low byte
 TIM2_CCR1H = 0x03; // 50% duty
 TIM2_CCR1L = 0xE8;
 TIM2_CCMR1_COMPARE_OC1M = 6; // pwm 1
 TIM2_BKR_MOE = 1; // Main output enable
 TIM2_CCER1_CC1E = 1; // enable output
 
 TIM2_CR1_CEN = 1; // enable counter
 TIM2_EGR |= 1; // Reset timer
 
 while(1)
 {
 // loop forever
 }
}

When I run this in the IAR debugger, I put a breakpoint on the while loop and watch the timer registers and hit go. Every time the program breaks, I can see the counter has moved, or has reset to zero and the interrupt flags get set, etc. However, when I watch PB_IDR_IDR0, it never changes and when I put a scope on PB0, I see no pulse.

I can bit-bang the same IO and it works so the hardware is OK.

What am I missing?

Edit: I did discover a couple of missing lines but they didn't seem to help:

 TIM2_CCMR1_COMPARE_OC1PE = 1; // preload enable

 TIM2_CR1_ARPE = 1;           // auto-reload

I updated my snippet.

[AMacd.1]

i just answered my own question:

The missing line was TIM2_BKR_MOE = 1;

The other two lines I thought I needed were unnecessary.

I updated the snippet so it shows the correct operations to get the timer output going.

Hopefully, someone else will find this useful.